To calculate the number of turns of wire included in the solenoid, use the following formula the value is 80000.
As the given data is : Number of turns = Length of wire / (π x Diameter of solenoid), For this example, that would be:, Number of turns = 2513.3 m / (3.14 x 0.20 m) = 39,755.56 turns. Solenoid length(l) = 1.4 m Diameter of solenoid (d) = 20 cm = 0.2 m Length of wire = 2513.3 m.
The formula of the solenoid, the Number of turns of the solenoid is given by; N=Length of wire /(Pi*d^2/4)L = 2513.3 m Diameter of the solenoid (d) = 0.2 m. Putting the values in the above equation, we get; N = 2513.3 / (3.14 * 0.2^2 / 4)N = 2513.3 / (3.14 * 0.04 / 4)N = 2513.3 / 0.0314N = 80000 turnsTherefore, the number of turns of wire that can be included in the solenoid is 80000.
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a hard billiard ball elastically collides with another hard billiard ball of equal mass. which situation is possible?
In an elastic collision, the total kinetic energy and momentum of the system are conserved. So, in the case of a hard billiard ball elastically colliding with another hard billiard ball of equal mass,
There are two possible situations that can occur. These situations are as follows:
When the two hard billiard balls collide head-on and return with equal speed.When the two hard billiard balls collide at an angle, they deflect at the same angle, and their speed remains the same.
Elasticity refers to the ability of a substance to return to its original shape and size when an external force is applied to it.
Elasticity is an essential concept in the field of physics and is used to describe the behavior of materials under stress.The coefficient of restitution is a measure of the elasticity of an object.
It is defined as the ratio of the relative speed of separation to the relative speed of approach after a collision between two objects.
The coefficient of restitution ranges from 0 to 1, with 0 representing a completely inelastic collision and 1 representing a completely elastic collision.
When two hard billiard balls elastically collide, they can either collide head-on and return with equal speed or collide at an angle and deflect at the same angle while maintaining the same speed.
Elasticity is a fundamental concept that is used to describe the behavior of materials under stress. The coefficient of restitution is a measure of the elasticity of an object.
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a van exerts a force on trailers of different masses m. compared with the force exerted on each trailer, rank the magnitude of force each trailer exerts on the van. (or are all pairs of forces equal in magnitude?)
The trailer pulls on the vehicle with an average force of A=B=C.
Newton's second law of acceleration is expressed as follows: F = ma
In this case, the mass is m, and the acceleration is a.
Assume that g=9.8 m/s2 represents the acceleration caused by gravity.
The acceleration of the object will be zero if it is travelling at a constant speed.
Because of the constant velocity, the van's net force on the trailer is therefore zero.
As a result, the van applies the same amount of force to each trailer. Thus, FA FB = FC.
As a result, each trailer pulls on the van with the same amount of force in the opposite direction. FA' = FB' = Fc', therefore.
As a result, A=B=C represents the rank of the force the trailer exerts on the van.
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a point charge q is far from all other charges. at a distance of 2 m from q the electric field is 20n/c. what is the force a charge of 5 coulombs feels
The force a charge of 5 coulombs for a point charge 'q' which is far from all other charges can be calculated by Coulomb's law.
The Coulomb's law states that the force between two point charges is proportional to the product of the charges and inversely proportional to the square of the distance between them:
[tex]F = k * (q_1 * q_2) / r^2[/tex]
where F is the force,
k is Coulomb's constant ([tex]k = 9*10^9[/tex] N m² / C²),
q₁ and q₂ are the charges, and
r is the distance between the charges.
We know that there is only one charge, q, and it is far from all other charges, so we can assume that
q₁ = q and q₂ = 5 C.
We also know that the electric field at a distance of 2 m from q is 20 N/C. The electric field is related to the force per unit charge, so we can use the equation:
[tex]E = F / q_2[/tex]
Therefore To find the force F acting on a charge q₂ at that distance.
Rearranging this equation in terms of F, we get:
[tex]F = E * q_2[/tex]
Substituting the values we have, we get:
F = 20 N/C * 5 C = 100 N
Therefore, a charge of 5 coulombs would feel a force of 100 N due to the point charge q.
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What is the function of the organelle depicted in the photo?
Answer:
It's a golgi body
Explanation:
It controls the transport system of the cell
What goes in and out the cel
explain why adding charge to a bee causes hairs on the bee's body to bend more in response to a field.
Insects use their hair-like mechanoreceptors to detect electrical fields around them. This electrical charge causes the hairs to move and bend towards the source of the field.
Explanation:
Bee hair is also sensitive to static electricity. As bees collect pollen, they become negatively charged, causing the pollen to become positively charged. This charge difference makes it easier for pollen to stick to the bees' hairy bodies and legs.
Therefore, when a bee is charged with static electricity, it becomes easier for its hairs to detect the electrical fields around it. As a result, the hairs on the bee's body will bend more in response to the electrical field.
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A bar magnet is falling through a loop of wire with constant velocity. The north pole enters first. As the south pole
leaves the loop of wire, the induced current (as viewed from above) will be in which direction?
a) is counterclockwise.
b) is along the length of the magnet
c) is zero
d) is clockwise
As the south pole leaves the loop of wire, the induced current (as viewed from above) will be in the clockwise direction.
Whenever a magnet is moved near a closed circuit or wire loop, an emf (electromotive force) is generated in the conductor. When the magnet moves in and out of the coil or loop, the magnitude and direction of this voltage changes, generating an induced current. This is referred to as Faraday's law of electromagnetic induction, which states that an emf is induced in a closed conductor when the magnetic flux through the surface enclosed by the conductor changes over time.
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the cantilevered beam is made of a36 steel and is subjected to the loading shown. determine the displacement at b using the method of superposition. for a36 steel beam, the moment of inertia i
Thus using method of superposition, the total displacement is 0.0276.
A36 steel beam is used Cantilever beam is loaded. The moment of inertia is I. For A36 steel beam, I = 6667 in4 (approx.)As per the method of superposition, the total displacement of the beam at point B is given as follows:δtotal = δP + δWWhere,δP is the displacement of point B due to the point loadδW is the displacement of point B due to the uniformly distributed load.
Considering point load,P = 1500 lb. Distance of the point load from point B = 5 ft. Thus, the moment at point B due to point load can be calculated as follows: MBP = PL = 1500 × 5 = 7500 lb-ft. Similarly, considering uniformly distributed load,W = 200 lb/ft. Thus, the moment at point B due to uniformly distributed load can be calculated as follows:Mbw = (wL2)/12Where,L is the length of the beam= 10 ft
Therefore, Mbw = (200 × 102)/12 = 1667 lb-ft (approx.)Thus, total moment at point B,M = MBP + MBW= 7500 + 1667= 9167 lb-ft. Thus, using the formula for deflection of cantilever beam,δP = (PbL2)/(2EI) = (1500 × 52)/(2 × 29 × 106 × 6667) = 0.0026 inδW = (WbL3)/(3EI) = (200 × 5103)/(3 × 29 × 106 × 6667) = 0.024 in
Therefore, the displacement at point B is 0.0276 in.
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2. how many times a minute does a boat bob up and down on ocean waves that have a wavelength of 36.0 m and a propagation speed of 4.80 m/s?
The boat will bob up and down on ocean waves that have a wavelength of 36.0 m and a propagation speed of 4.80 m/s once every 7.50 seconds.
To solve the given question, we must use the formula:
n= v/f
Where: v is the velocity of the wave (in m/s)f is the frequency of the wave (in Hz)n is the number of cycles per second
Therefore, the frequency of the wave (in Hz) can be calculated by using the formula:
f= v/λ
where: v is the velocity of the wave (in m/s)λ is the wavelength of the wave (in m)
The frequency of the wave is 0.1333 Hz (approx).
Now, the number of cycles per second (n) is: n = v/λ
We can solve for n by dividing the velocity of the wave by the wavelength of the wave.
Therefore,
n= v/λ= (4.80 m/s) / (36.0 m)= 0.1333 Hz
So, the boat bob up and down 0.1333 times a minute on ocean waves that have a wavelength of 36.0 m and a propagation speed of 4.80 m/s.
1 Hz = 60 seconds,
0.1333 Hz = 7.50 seconds.
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when lighted, a 100-watt light bulb operating on a 110-volt household circuit has a resistance closest to
When lighted, a 100-watt light bulb operating on a 110-volt household circuit has a resistance closest to 0.99 ohms.
Resistance refers to the electrical property of a circuit component, such as a light bulb, that resists the flow of electrical current through it.
Ohm's law is a fundamental principle in electrical engineering that relates the resistance, voltage, and wattage in a circuit. It states that the resistance (R) is equal to the voltage (V) divided by the wattage (W).
W = 100 watts, V = 110 volts.
Use Ohm’s law to calculate the resistance (R):
R = V/W = 110/100 = 0.99 ohms.
Therefore, when a 100-watt light bulb is operating on a 110-volt household circuit, its resistance is approximately 0.99 ohms.
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a model depicts two balloons of the same size with identical negative charges being moved toward one another at the same speed. how will the balloons interact with each other?
Answer:
they will repel, moving in opposite,
Explanation
two 4.0cm*4.0cm metal plates are separated by a 0.20-mm-thick piece of teflon. a. what is the capacitance? b. what is the maximum potential difference between the plates?
The capacitance of two metal plates separated by a 0.20-mm-thick is approximately 0.25 pF and the maximum potential difference between the plates is 8.4 kV.
a. The capacitance of two metal plates separated by a 0.20-mm-thick piece of Teflon is approximately 0.25 pF (picofarad).
b. The maximum potential difference between the two metal plates is determined by the permittivity of the dielectric material, which in this case is Teflon.
The permittivity of Teflon is about 2.1 and the capacitance of the plates is 0.25 pF, so the maximum potential difference between the plates can be calculated using the equation:
Vmax = (permittivity * Capacitance) / Area.
Therefore, the maximum potential difference between the plates is 8.4 kV.
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when a mass m is hung on a certain ideal spring, the spring stretches a distance d. if the mass is then set oscillating on the spring, the period of oscillation is proportional to
Answer:
ω = (k / m)^1/2 proportionality for angular speed in SHM
f = ω / 2 * π
Since P = 1 / f the period is inversely proportional to ω
P proportional to m
P inversely proportional to k the spring constant
When a mass m is hung on a certain ideal spring, the spring stretches a distance d. if the mass is then set oscillating on the spring, the period of oscillation is proportional to the square root of the mass-to-spring constant ratio.
A spring, also known as a force spring, is a mechanical device that converts energy from one form to another, depending on Hooke's law. Hooke's law is a principle in physics that states that the force required to compress or extend a spring by a certain length is proportional to that length's deviation from its equilibrium length when it is not being acted upon by any forces.
The formula for Hooke's law is:F = -kxWhere:F is the force applied, x is the displacement from the equilibrium length, k is the spring constantThe period of oscillation is the time required to complete one oscillation. It is dependent on the mass m of the system and the spring constant k. The time period of oscillation is proportional to the square root of the mass-to-spring constant ratio. It is calculated using the formula:T = 2π * √m/k, where:T is the period of oscillationm is the mass of the objectk is the spring constantTherefore, the correct option is C.
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the time interval between flashes on a strobe light is 1/70th of a second. what is the frequency of these flashes.
(Use f=time/vibe)
Show work
The strobe light's flashes occur at a 70 Hz frequency.
What frequency does sound have?The frequency of a sound pressure wave, also known as pitch, is the quantity of times every second that it repeats. A bullfrog cry is far downward communication than a whistle, while a cricket is much downward communication than a drum beat.
To calculate the flash frequency, use the formula below.:T is the amount of time between flashes in seconds, and f is the frequency expressed in Hertz (Hz).We obtain the following value by inserting the given value: f = 1 / (1/70) f = 70 Hz.
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2. according to our equations, what should be the relationship between the total current and the currents passing through each resistor? does your data show this relationship
According to Ohm's Law, the relationship between the total current and the currents passing through each resistor is that the total current is equal to the sum of the currents passing through each resistor.
What is Ohm's Law?This can be represented mathematically as I total = I₁ + I₂ + I₃ + ... where I total is the total current and I₁, I₂, I₃, etc. are the currents passing through each resistor.
This relationship is consistent with Kirchhoff's Current Law, which states that the sum of the currents entering and leaving a junction in a circuit must be equal to zero. Therefore, the current flowing through each resistor must add up to the total current in the circuit. Yes, this relationship is observed in data obtained from circuits.
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you are trying to solve a physics problem and the first thing you try doesnt workyou try another and then another and eventually you figure it out what is this method called
The method of trying different approaches to solve a problem until one works is called trial and error.
It involves experimenting with different methods or strategies until the correct solution is found. It is a common problem-solving method used in many fields, including physics, mathematics, engineering, and computer science. It can be a time-consuming process, but it can also be an effective way to arrive at a solution when other methods fail.
What is trial and error method?
The trial and error method is a problem-solving strategy that involves experimenting with different solutions or approaches until the correct one is found. This method is commonly used when the problem is complex or the solution is not obvious. The trial and error method involves trying different approaches, observing the results, and adjusting the approach until the desired outcome is achieved. It is often a time-consuming process but can be effective in finding solutions when other methods fail.
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a 7.50g-bullet has a speed of 555 m/s as it leaves the muzzle of a rifle. if the barrel of the rifle is 0.950 m, what is the average force exerted on the bullet by the ammunition?
The average force exerted on the bullet by the ammunition is 2434.2 N.
We can use the impulse-momentum theorem to determine the average force exerted on the bullet by the ammunition:
[tex]F_{avg} \times t = \Delta p[/tex]
where F_avg is the average force, t is the time over which the force is applied, and Δp is the change in momentum of the bullet. Since the bullet is fired from the muzzle of the rifle, we can assume that the time over which the force is applied is equal to the time it takes for the bullet to travel the length of the barrel:
t = L / v
where L is the length of the barrel and v is the velocity of the bullet.
Substituting L = 0.950 m and v = 555 m/s, we get:
t = 0.950 m / 555 m/s = 0.00171 s
The change in momentum of the bullet can be calculated as:
[tex]\Delta p = p_f - p_i[/tex]
where p_f is the final momentum of the bullet and p_i is its initial momentum. Since the bullet is fired from rest, its initial momentum is zero. The final momentum can be calculated using the formula:
p_f = m * v
where m is the mass of the bullet and v is its velocity. Substituting
m = 7.50 g = 0.00750 kg and v = 555 m/s, we get:
[tex]p_f = 0.00750 kg \times 555 \ m/s = 4.16\ kg m/s[/tex]
Therefore, the change in momentum of the bullet is:
[tex]\Delta p = p_f - p_i = 4.16\ kg m/s - 0 = 4.16 \ kg m/s[/tex]
Substituting t = 0.00171 s and Δp = 4.16 kg m/s into the expression for the average force, we get:
[tex]F_{avg} \times t = \Delta p[/tex]
[tex]F_{avg} = \Delta p / t = (4.16\ kg m/s) / (0.00171 s) = 2434.2\ N[/tex]
Therefore, the average force exerted on the bullet is 2434.3 N.
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Lebohang says that when you use a thick syringe to "drive" a thin syringe, you lose strength but gain distance. What do you think
Lebogang says that when you use a thick syringe to "drive" a thin syringe, you lose strength but gain distance. Jaamiah disagrees this means that there is indeed a mechanical advantage, but a distance disadvantage.
A syringe is a medical device that is used for injecting liquids into or extracting liquids from the body. It typically consists of a cylindrical barrel, a plunger, and a needle. The barrel is usually made of plastic or glass and is marked with volume measurements. The plunger fits inside the barrel and can be pushed or pulled to draw or expel liquid. The needle is attached to the end of the barrel and is used to penetrate the skin or other tissue to inject or extract the liquid.
Syringes are commonly used in medical settings for a variety of purposes, such as administering vaccines, medications, or anesthesia. They can also be used to remove fluid from the body, such as in the case of draining abscesses or collecting blood samples for testing.
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Complete Question: -
Lebogang says that when you use a thick syringe to "drive" a thin syringe, you lose strength but gain distance. Jaamiah disagrees. She says that you gain both distance and strength. What do you think, and why do you think so?
isaac's body plunges to a depth of 2.5m below the water surface before stopping. determine the average force of water resistance experienced by his body
Isaac encountered a water resistance force of 24,525 N on average as he dived to a depth of 2.5m beneath the water's surface.
Isaac's body experienced an average force of water resistance due to the water surrounding it. This force is determined by the volume and density of the water, as well as the acceleration of his body while it is moving.
First, we need to calculate the volume of the displaced water. We can use the formula:
V = Ah
where A is the surface area of the object and h is the depth to which it sinks. Since we don't have the surface area of Isaac's body, we can assume it to be 1 square meter for simplicity.
V = 1 * 2.5 = 2.5 cubic meters
To calculate the average force of water resistance experienced by his body, we can use the equation
Force = Volume x Density x Acceleration.
Using this equation, we can calculate the force of water resistance as follows:
Force = 2.5m^3 x 1000kg/m^3 x 9.81m/s^2
Force = 24,525 N.
Therefore, Isaac experienced an average force of water resistance of 24,525 N while his body was plunging to a depth of 2.5m below the water's surface.
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A solid cylinder of mass M = 1.25 kg and radius R = 13.5 cm pivots on a thin fixed frictionless bearing a string wrapped around the cylinder pulls downward with a force of F = 7.259 N
What is the magnitude of the angular acceleration of the cylinder?
86.03259 rad/s^2
Consider that instead of force F, a block with mass 0.74 kg with force = 7.259 N is attached to the cylinder with a mass less string.
What is now the magnitude of the angular acceleration of the cylinder
39.3943 rad/s^2
How far does the mass M travel downward before T equals 0.49S and T equals 0.69 S.
0.62755 m
The cylinder is changed to one with the same mass and radius but a different moment of inertia starting from mass starting from rest. The mass is now moved. The distance of 0.448 mass in the time interval of 0.47 seconds.
Find the Inertia of the new cylinder
The inertia of the new cylinder is 0.0566 kgm². Other answers provided are correct.
How to find inertia?The moment of inertia of the new cylinder can be calculated using the formula:
I = (M × d²) / (4 × Δθ)
Where:
M = mass of the cylinder
d = distance moved by the mass
Δθ = change in angular displacement (in radians)
Substituting the given values:
I = (1.25 × 0.448²) / (4 × 0.47)
I = 0.0566 kgm²
Therefore, the moment of inertia of the new cylinder is 0.0566 kgm².
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at what angle of deflection makes the magnetic field strngth produced by the coil of the wire equal to the ambient magnetic field
The magnetic field strength created by the wire coil is equivalent to the ambient magnetic field when it is deflected at a right angle.
The magnetic field strength created by the wire coil is equivalent to the ambient magnetic field when it is deflected at a right angle. The Biot-Savart Law, which relates magnetic field strength to the current in a wire and the distance from the wire, applies to a wire coil.
The strength of the magnetic field generated by a current-carrying wire is proportional to the current in the wire and the number of turns per unit length. The magnetic field's intensity is determined by the number of turns in the wire coil, the current in the wire coil, the radius of the coil, and the permeability of free space.
The equation for calculating the magnetic field strength at a point in space around a current-carrying wire is given by the Biot-Savart Law:
B = µ₀I/2πr.
Where µ₀ is the permeability of free space, I is the current, and r is the distance from the wire to the point where the magnetic field strength is to be calculated.
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how many electrons per second enter the positive end of the battery 2? answer in units of electrons/s.
The number of electrons per second that enter the positive end of a battery can be calculated by the current flowing through the circuit and the time for which it flows.
Therefore, The formula of current is as
I = Q/t
where I is the current,
Q is the charge passing through the circuit, and
t is the time for which the current flows.
Since one electron carries a charge of -1.6 x 10⁻¹⁹Coulombs, we can calculate the number of electrons passing through the circuit using the following formula:
n = Q/e
where n is the number of electrons and
e is the charge on an electron (-1.6 x 10⁻¹⁹ Coulombs).
If we know the current flowing through the circuit and the time for which it flows, we can calculate the number of electrons per second using the following formula:
n/s = I/e
where n/s is the number of electrons per second.
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is the transfer of information between two or more points that are not connected by an electrical conductor?
Yes, the transfer of information between two or more points that are not connected by an electrical conductor is possible and is referred to as wireless communication.
Wireless communication involves the use of electromagnetic waves such as radio waves, microwaves, and infrared waves, to transmit data between two points without the need for physical contact or connection.
Wireless communication is used in various fields, such as broadcasting, radio communication, mobile communication, satellite communication, and Internet access. Wireless communication technology has revolutionized communication and enabled a wide range of applications, from wireless microphones to Wi-Fi networks, GPS tracking systems, Bluetooth connectivity, and cellular communication.
Wireless communication is an important component of the modern world and will continue to play a major role in the advancement of communication technology.
Therefore, the transfer of information between two or more points that are not connected by an electrical conductor is possible and is done through wireless communication.
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a 100 cm diameter propeller blade, similar to the blade in example 4.15, is attached to a motor spinning at a constant rate. what is true about the radial (centripetal) acceleration and the tangential acceleration at the end of the blade?
The true statements about the radial (centripetal) acceleration and the tangential acceleration at the end of the blade are: the radial acceleration is non-zero the tangential acceleration is zero
The radial acceleration is non-zero and the tangential acceleration is zero. This is because, the radial acceleration is determined by the formula, ar = (v²)/r
where ar is the radial acceleration, v is the velocity and r is the radius. Thus, since the propeller blade is spinning at a constant rate, the velocity v is constant.
Therefore, the radial acceleration is constant and non-zero.
The tangential acceleration, on the other hand, is given by at = rα
where at is the tangential acceleration and α is the angular acceleration. Since the blade is spinning at a constant rate, the angular acceleration is zero. Therefore, the tangential acceleration is zero.
So, the correct option is the radial acceleration is non-zero and the tangential acceleration is zero.
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Which type of engine has a wheel with several blades mounted on a shaft that rotate a shaft when hit with heated air at a high velocity?
The type of engine that has a wheel with several blades mounted on a shaft that rotates when hit with heated air at a high velocity is called a gas turbine engine.
What is a gas turbine engine?
The gas turbine engine is also known as a combustion turbine engine. A gas turbine engine is a type of internal combustion engine that converts the chemical energy of fuel into mechanical energy, which can be used to power various machines and equipment. The engine works by compressing air and then mixing it with fuel in a combustion chamber, where it is ignited to produce a high-temperature, high-pressure gas stream. This gas stream then flows through a series of turbine blades, causing them to spin, which drives a shaft that is connected to various machines or equipment. As the shaft rotates, it generates mechanical power that can be used for various applications.
Gas turbine engines are commonly used in aircraft, power plants, and marine propulsion.
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when you blow air into an open organ pipe, it produces a sound with a fundamental frequency of 440 hz. if you close one end of this pipe, the new fundamental frequency of the sound that emerges from the pipe is
The new fundamental frequency of 880 Hz.
When you blow air into an open organ pipe, it produces a sound with a fundamental frequency of 440 Hz.
If you close one end of this pipe, the new fundamental frequency of the sound that emerges from the pipe is two times the initial frequency, i.e., 880 Hz.
When the air column is confined to one end of the pipe, the first harmonic that can be supported is the third harmonic.
The wavelength of the first harmonic is twice the length of the pipe, and the wavelength of the third harmonic is equal to the length of the pipe.
The frequency of the third harmonic is three times the frequency of the first harmonic.
The new fundamental frequency of the sound that emerges from the pipe is two times the initial frequency, i.e., 880 Hz.
This is because the frequency of the first harmonic is half that of the fundamental frequency in an open organ pipe.
When one end is closed, the first harmonic is no longer available, and the frequency of the second harmonic, which is twice the fundamental frequency, is available.
Therefore, the fundamental frequency is multiplied by two when one end of an open organ pipe is closed to produce a pipe that is open on one end and closed on the other.
This results in a new fundamental frequency of 880 Hz instead of 440 Hz, as observed in an open pipe.
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two stationary point charges q1 and q2 are shown in the figure along with a sketch of some field linesrepresenting the electric field produced by them. what can you deduce from the sketch?
From the sketch, we can deduce that the two charges q1 and q2 are of opposite signs, as field lines start at the positive charge q1 and end at the negative charge q2. The field lines also indicate that the magnitude of the electric field produced by q1 is larger than that of q2.
Additionally, the field lines show that the electric field lines near the charges are denser, indicating a stronger electric field intensity near the charges. The direction of the electric field points from q1 to q2, which is consistent with the direction of the force that a positive test charge would experience if placed in the field. The field lines also show that the electric field is radial, i.e., the field lines point directly away from or towards each charge in a straight line, which is a characteristic of the electric field produced by a point charge. Finally, the density of the field lines decreases with distance from the charges, indicating that the electric field strength decreases with distance from the charges, following an inverse-square law.Learn more about electric field at: https://brainly.com/question/14372859
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light having a wavelength in vacuum of 600 nm enters a liquid of refractive index 2.0. in this liquid, what is the wavelength of the light?
The wavelength of light in a medium with a refractive index of 2.0 is 300 nm. This can be calculated using the equation λ1 = λ2/n, where λ1 is the wavelength of light in vacuum (600 nm) and λ2 is the wavelength of light in the liquid (300 nm), and n is the refractive index of the medium (2.0).
The question is asking what the wavelength of light is when it enters a liquid with a refractive index of 2.0. The wavelength of light in a vacuum is 600 nm.
To find the wavelength in the liquid, we need to use the equation: Wavelength in medium = Wavelength in vacuum/Refractive Index. Therefore, the wavelength of light in the liquid would be 300 nm.
In order for light to travel from one medium to another, the refractive index needs to be taken into consideration. Refractive index is defined as the ratio of the speed of light in a vacuum to the speed of light in a particular medium. When light travels from a medium with a high refractive index to one with a lower refractive index, the wavelength of the light will decrease. Therefore, when light with a wavelength of 600 nm enters a liquid with a refractive index of 2.0, the wavelength of the light will decrease to 300 nm.
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two people are yelling at the same time. one yells with an intensity level of 80.0 db, and the other at 90.0 db. what is the total sound intensity level?
The total sound intensity level is approximately 87 dB.
When two sounds with different intensities are present simultaneously, the total sound intensity level is found by adding the individual sound intensity levels in decibels (dB) using the following equation,
L_total = 10 log10(I_total/I_0)
where L_total is the total sound intensity level, I_total is the total sound intensity, and I_0 is the reference sound intensity (usually taken as 10^-12 W/m^2).
In this case, we have two sounds with intensity levels of 80.0 dB and 90.0 dB. To find the total sound intensity level, we first need to convert each intensity level to sound intensity,
I_1 = I_0 10^(L_1/10) = (10^-12 W/m^2) 10^(80.0/10) = 10^-5 W/m^2
I_2 = I_0 10^(L_2/10) = (10^-12 W/m^2) 10^(90.0/10) = 10^-4 W/m^2
where L_1 and L_2 are the intensity levels of the two sounds in dB.
The total sound intensity is the sum of these two sound intensities,
I_total = I_1 + I_2 = 10^-5 W/m^2 + 10^-4 W/m^2 = 1.1 x 10^-4 W/m^2
L_total = 10 log10(I_total/I_0) = 10 log10(1.1 x 10^-4/10^-12) ≈ 87 dB
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A skydiver of mass 95kg ,before opening his parachute, falls at t1 with V1= 11m/s and at t2 with t2 v2=27m/s; supposing friction is zero, find the distance covered between t1 and t2
The skydiver covered a distance of approximately 94.9 meters before opening his parachute between t1 and t2, assuming no air resistance or friction.
v = final velocity = v2 = 27 m/s
u = initial velocity = v1 = 11 m/s
a = acceleration = g = 9.8 m/[tex]s^2[/tex]
s = (v² - u²) / 2a
s = (27² - 11²) / (2 x 9.8) = 94.9 meters
Resistance measures an item's potential to impede the drift of electrical present-day through it. it's far measured in ohms (Ω). Resistance is decided by way of the bodily residences of an item, along with its dimensions, material, and temperature. while electric-powered present-day flows thru a conductor, it encounters resistance that slows down its float. This resistance is as a result of the collisions among electrons and the atoms inside the conductor.
Resistance can be laid low with changes inside the bodily properties of the conductor, such as duration, cross-sectional region, or temperature. an extended or narrower conductor may have higher resistance, even as a much broader conductor could have decreased resistance. understanding resistance is critical for designing and working electrical circuits. with the aid of controlling the resistance of a circuit, engineers can make sure that the appropriate amount of current flows to electricity the devices linked to it.
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suppose i drop a football from a tall building, and 4 seconds elapse before it hits the ground. neglecting air resistance, roughly how fast is the football moving upon impact?
The football is moving at approximately 59 meters/second (212.3 kilometers/hour) upon impact, neglecting air resistance.
The football is moving at approximately 59 meters/second (212.3 kilometers/hour) upon impact, neglecting air resistance. This can be calculated using the equation s=1/2at^2, where 's' is the displacement, 'a' is the acceleration due to gravity (9.8m/s^2), and 't' is the time of the fall (4 seconds). Therefore, the displacement is s=1/2(9.8m/s^2)(4s)^2, which simplifies to s=78.4m.
Since the displacement is known (78.4m), the velocity can be determined using the equation v^2=u^2+2as, where 'v' is the velocity upon impact, 'u' is the initial velocity (0m/s), and 'a' is the acceleration due to gravity (9.8m/s^2). Therefore, the velocity is v=sqrt(2as), which simplifies to v=sqrt(2(9.8m/s^2)(78.4m)), which simplifies to v=59m/s.
This is the speed of the football upon impact, neglecting air resistance. This assumes that the football is dropped from rest, and experiences a uniform acceleration throughout the fall, which is due to gravity. The acceleration due to gravity is a constant 9.8m/s^2, regardless of the speed of the falling object.
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