If you were to build a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz. The speed of sound in air is 343 m/s
Building a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz will require the length of the shortest pipe to be 0.018m
What is Length?This is defined as the measurement or extent of a substance from end to end. The formula is shown below:
L = v/f where v is speed , f is frequency
f1 = 25hz , f2 = 19khz
The length for both sides is seen below:
l1 = 343/25 = 13.72m
l2 = 343/19000 = 0.018m.
The length of the shortest pipe is therefore 0.018m.
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The frequency of a repeated event is the number of occurrences per unit of time. The length of the shortest pipe is 0.018 m.
What is the frequency?The frequency of a repeated event is the number of occurrences per unit of time. It is also known as temporal frequency to distinguish it from spatial frequency, and ordinary frequency to distinguish it from angular frequency.
The formula of the length is given by the formula,
[tex]L=\dfrac vf[/tex]
where v is the velocity of the substance and f is the frequency.
Given that the speed of the sound in air is 343 m/sec, while the frequency is tanging from 25Hz to 19 kHz.
Therefore, the length of the pipe will be,
[tex]L=\dfrac vf\\\\L_1=\dfrac{343}{25} = 13.72\rm\ m[/tex]
[tex]L_2=\dfrac{343}{19 \times 1000} = 0.018\rm\ m[/tex]
Hence, the length of the shortest pipe is 0.018 m.
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Jessie hits a foul ball
straight up in the air
during a softball game.
Assuming all energy is
conserved, at what height
did the 3 kg ball travel if it
had a velocity of 11 m/s?
Answer:
GPE=(3*11^2)/2
(3*121)/2
363/2
GPE=181.5J
Explanation:
Is an electron cloud bigger than an atom?
Answer:
no
Explanation:
An electron is one of the components of an atom, so it cannot be larger than that.
Answer:
No, it's not.
Explanation:
The tightly packed nucleus is 100,000 times smaller than the electron cloud.
What is current of 12 ohm? help me pleasee
What two forces propel the acceleration of change in human societies today?
Answer:
Collective behavior and social movements
Explanation:
Social movements are a collective behavior but are organized efforts and goal driven. It can range from local to national and can even reach globally. Groups that are behind social movements usually want to either create or resist social, political, economic, or cultural change.
The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.
What are fossil fuels?Fossil fuels are obtained beneath the earth's crust, which is formed due to buried plants and animals. The excessive heat under the earth crust heats the plants and animals.
The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.
Hence, the use of fossil fuels such as coal, oil, and natural gas, and technical advancements are two forces that propel the acceleration of change in human societies today
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[tex] \text \red { \huge\underline{Question}}[/tex]
[tex] \text{What is ideal-gas equation?}[/tex]
Answer:
PV = nRT
Explanation:
The Ideal Gas Equation shows the relation between 4 factors :-
Pressure Volume moles Temperature⇒ R is the molar gas constant included so they are equal to each other, without it, they would just be proportional
The equation :-
⇒ PV = nRT
true or false
As the moon orbits Earth, the absolute positions of the moon,
Earth, and the sun change
Answer:
FALSE
Explanation:
as the moon orbits earth, the ABSOLUTE position of the moon, earth, and the sun change. the moons orbit around earth is ABSOLUTELY STRAIGHT with respect to earths orbit around the sun. the amount of the moon's surface that is lit by the sun changes.A student makes this statement before conducting an experiment on electromagnetic radiation: "We expect the laser to diffract when passed through a slit." Which of the following explains why the student's statement is not a claim?
(1 point)
It is a prediction or hypothesis.
It cannot be verified experimentally.
It is part of the evidence to support a claim.
It is a description of the experimental results.
Answer:
it is a prediction or hypothesis4
Convert 95°F into degree centigrade.
35
Explanation:
95 =9/5*x +32
63=9/5x
9x=63*5
x=35
What will happen to the fringe spacing if the wavelength of the light is decreased?.
Answer:
The formula is the form -
m λ = d sin Θ
As the wavelength λ is decreased sin Θ will also decrease.
One can see from the derivation that as the wavelength, being considered,
is decreased the dispersion will also decrease.
When a dielectric slab is inserted between the plates of one of the two identical capacitors
Answer:(A-P,S;B-P,S;C-Q,S;D-P,S)
Solution
(A)→P,S,(B)→P,S,(C)→Q,S,(D)→P,S.
Explanation:
Why does the law of conversion of mass make sense?
Explanation:
If u mix 1g of salt with 100 ml of water, both dissolves but at the same time the mass of the solution increases.
According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction
Answer:
The law of conservation of mass was crucial to the progression of chemistry, as it helped scientists understand that substances did not disappear as result of a reaction as they may appear to do; rather, they transform into another substance of equal mass.
Explanation:
A room with translucent windows that include some colored parts. use the drop-down menus the complete the statements about the image. the windowpanes are . the colors of the panes are due to the wavelengths of light that the glass .
(a)The window panes are transparent
(b)The colors of the panes are due to the wavelengths of light that the glass allows to pass through.
What are trasparent glasses?The glasses which allows the light rays to pass through them are called as the transparent glasses.
or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye.[1] Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm),
corresponding to frequencies of 750-420 terahertz, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths
Hence the window panes are transparent the colors of the panes are due to the wavelengths of light that the glass allows to pass through.
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Answer:
The windowpanes are- transparent.
The color of the panes are due to the wavelengths of light that the glass- allows to pass through
Explanation:
When does sound become damaging to the human ear?
After a student shoves a book across a flat table, it begins to slow down. Why?
Answer:
The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down. When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object. The frictional force from a fluid is called a drag force.
This fossil snake and this living rat both have a structure in their skull called the quadrate bone. What best explains why both species have a quadrate bone?
The snake and rat both share the same ancestor population that had a quadrate bone, which was inherited from an ancestor population.
What is a homo-logous structure?A homo-logous structure is a trait that may or not have the same function but has a common evolutionary origin.
A homo-logous structure can be used to trace the evolutionary relationships between species.
Conversely, an analogous structure has the same function but it does not reflect an evolutionary origin.
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Scientists have organized all forms of energy into two types—kinetic and potential. Kinetic energy is the energy of motion, and potential energy is stored energy.
Raise the pendulum again. Carefully watch the Energy Graph on the left. It shows the amount of energy the pendulum has as it moves.
At the top of its swing, does the pendulum have kinetic energy or potential energy?
PLEASE HELP!
Answer:
Potential energy only
Explanation:
at the top of its swing the pendulum stops moving , (therefore it has no KINETIC energy) thus all of the energy is stored as potential energy.
What do you think about Turkey??
what are various paradox related to time travel?
Answer:
This is a paradox — an inconsistency that often leads people to think that time travel cannot occur in our universe." A variation is known as the "grandfather paradox" — in which a time traveler kills their own grandfather, in the process preventing the time traveler's birth
Explanation:
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The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba
Answer:
The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba
Explanation:
The potential difference across the terminals of a battery is `8.4 V` when there is a current of `1.50 A` in the battery from the negative to the positive terminal. When the current is `3.50 Air`, the reverse direction, the potential difference becomes `9.4 V`. <br>(a) What is the internal resistance of the battery? <br>(b) What is the emf of the battery?
How much force does the astronaut exert on his chair while accelerating straight up at 10.0 m/s2m/s2
Answer:
M a = Fc -M g
Use up as positive - a is the acceleration upwards
Fc = M (a + g) force exerted by chair
Fc = 19.8 M m/s^2 where M is the mass of the astronaut
The force exerted by the astronaut accelerating straight up with an acceleration of 10 m/s² is m/5 Newton.
What is force?If you want to accelerate a body of mass 'm' with acceleration 'a' than a force of magnitude given by the product of mass and acceleration is needed.
Given is an astronaut accelerating straight up with an acceleration of 10 m/s².
Since the astronaut is moving in upward direction, the resultant resultant force is in upward direction. Now, assume that the force exerted by the astronaut on the chair is F[A]. The normal reaction force on the astronaut will also be same. Mathematically -
F[N] = F[A]
Now, we can write the resultant normal reaction force as -
ma - mg = F[N]
F[N] = m(a - g)
F[N] = m(10 - 9.8)
F[N] = m(0.2)
F[N] = m/5
F[A] = F[N] = m/5
where m is the mass of astronaut.
Therefore, the force exerted by the astronaut accelerating straight up with an acceleration of 10 m/s² is m/5 Newton.
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Is it possible For dogs to be gray
Answer:
Yes, it is possible for dogs to be grey
Explanation:
Whippets are gray and they are a type of dog
Answer: Like humans, dogs tend to go gray as part of their natural aging process.
Explanation: Just like us, humans, dogs tend to go gray as part of their natural aging process. And just like us, as dogs get older, the pigment cells responsible for color (specifically, melanin) stop being produced; this causes the strands to come out at a lighter shade, like gray or white.
Hopes this helps you out!
Have a nice week!
Why do comets only have tails when they are near the sun?.
Differentiate between transverse wave and longitudinal wave
Explanation:
Transverse wave
The wave in which the particles of the medium vibrate up and down perpendicularly to the direction of the wave is called transverse wave...It consists of crests and troughs...It can be produced only in solids and surface of liquids...Longitudinal wave
The wave in which the particles of the medium vibrate to-and-fro in the direction of the wave is called longitudinal wave..It consists of compressions and refractions...It can be produced in solid , liquid and gas...If a star is 720 , 000 , 000 , 000 , 000 meters from Earth, how many seconds does it take light to travel from the Earth to the star
Answer:
anywhere between 100000 to about 400000 human years .
Explanation:
Two people are having a race pushing equal sized boxes up a hill. joe pushes the box up the hill in 10 seconds and cindy pushes the box up the hill in 5 seconds. who is applying more pressure on the side of the box?
The person applying a greater pressure to the box is Cindy since it takes her a lesser time to move the box up the hill.
What is pressure?The term pressure is defined as the force per unit area. WWe know that the magnitude of force applied is shown by the time taken to push the box up the hill.
Since Cindy pushes the box up the hill in only five seconds, it means that Cindy is applying a greater pressure to the box.
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Pure substances can be made of atoms that are attracted to each other or atoms that are not attracted to each other. Which type of pure substance can create elaborate structures? (1 point)
Atoms that are attracted to each other because the bonds that form between them can support the creation of the structure.
Atoms that are attracted to each other because they will mix together to form a mixture with a different structure.
Atoms that are not attracted to each other because they will form bonds with each other and create a larger structure.
Atoms that are not attracted to each other because they will stay still and end up laying on top of each other.
Answer: atoms that are attracted to each other because the bonds that form between them can support the creation of the structure
Explanation:
Which best describes an action related to interdependence?
A. limiting the amount of fish harvested to ensure future availability
B. finding methods for extracting oil with minimal damage to the environment
C. using calculations to ensure that lumber is used efficiently
D. predicting the profits from selling metal that is extracted from ore
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Which best describes an action related to interdependence?
A. limiting the amount of fish harvested to ensure future availability
B. finding methods for extracting oil with minimal damage to the environment
C. using calculations to ensure that lumber is used efficiently
D. predicting the profits from selling metal that is extracted from ore
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The living things in an ecosystem are interdependent. This means that living things depend on their interactions with each other and also nonliving things for survival. For example, a tree depends on sunlight for energy and food.
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Knowing the direction of heat flow, explain why if you leave a hot bowl of soup out in the open on the countertop, it eventually gets cold. Where is the heat going?
The heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.
Where does the heat go?We know that when two bodies of different temperatures there will be a flow of heat between the objects, from the hotter one to the colder one.
In this case, we have the bowl of soup as the hot object, and the ambient (the countertop, the air surrounding the bowl, etc) itself will be the cooler object.
Then the heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.
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Find the number of permutations when 7 objects are taken 1 at a time
Using the formula for permutation, there are 5040 ways that 7 objects are taken 1 at a time.
What is permutation?The permutation of objects refers to the number of ways that an object can be selected from a number of objects.
Given that;
nPr = n!/(n - r)!
Hence;
7P1 = 7!/(7 - 1)!
7P1 = 7 * 6 !/6!
7P1 = 7 * 6 * 5 * 4 * 3 * 2 *1
7P1 = 5040
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