the electric field midway between two equal but opposite point charges is 573 n/c , and the distance between the charges is 16.0 cm

Answer:

Sure...it can be

Explanation:

When a positively charged body is brought near the neutral body, the body is negatively charged through electrostatic induction.

• At contact, the negative charges of a body are attracted to the near end of that body hence neutralization.

• When the positively charged body is removed and the body is earthed, it remaims negatively charged.

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If the equilibrium constant for A + B = C is 0.157, then the equilibrium constant for 2C = 2A + 2B is 40.6.

What is Equilibrium Constant?

The equilibrium constant (K) of a chemical reaction is the relationship between the products and reactants when a chemical reaction reaches equilibrium. The equilibrium constant of concentration (Kc) of a chemical reaction at equilibrium is defined as the ratio of the concentration of products to the concentration of the reactants, each raised to their respective stoichiometric coefficients.

At equilibrium, Rate of the forward reaction = Rate of the backward reaction

Mathematically, it can be stated as:

[tex]r_f=r_b\\k_f\times \alpha\times [A]^a[B]^b=k_b\times \alpha\times [C]^c[D]^d[/tex]

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Answer:

b. Observation

Explanation:

You see ice melt in an experiment, so you record that as one of your observations.

With the help of Equations of Kinematics, we can say that, both the stones meet at a time t= 4 seconds and they meet at a height of 320 meters from the ground if the speed of the second stone was 100ms⁻¹.

When the body is thrown upwards or downwards it is influenced by gravity and it accelerates and deaccelerates accordingly and its magnitude is equal to the Acceleration due to gravity (g).

Based on this concept, if the body is thrown upwards a = - g (deacceleration), and if the body is dropped downwards a = g(acceleration).

Here in this question, the stone thrown upwards will deaccelerate and the one dropped downwards will accelerate.

So, the Height of the tower=400 meters.

Let the distance traveled by the stone dropped downwards from the top be s₁ and the distance traveled by the stone thrown upwards from the bottom be s₂.

Let the initial velocity of stone dropped downwards be u₁ and the stone is thrown upwards be u₂.

Let the time at which they meet together be t.

Now, using the equation of kinematics,

s=ut+ 1/2gt²

Here, acceleration = a will be equal to the acceleration due to gravity g.

(Take g=10m/s²).

We can write,

s₁=u₁t+1/2 gt²

s₂=u₂t-1/2 gt²

We know that,

s₁+s₂= 400

So, substituting the values of s₁ and s₂

u₁t+1/2 gt² + u₂t-1/2 gt² = 400

As the stone was dropped from rest u₁=0

On further solving,

u₂t=400

Given, u₂= 100ms⁻¹

Hence, t=4 s

Now, s₂= 100(4)-1/2(10)(4²)

=400 - 80

= 320 m

The distance is 320 m from the ground.

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Kepler's first law states that a planet moves around the sun in an elliptical orbit, with the sun at one focus.

Planets are large bodies in space which orbit round a star such as the Sun.

The Sun and the planets that orbit around it form the solar system.

The movement of the planets around the Sun is described as planetary motion.

Planetary motion is descried in Kepler's laws of Planetary motion.

The Kepler's laws of Planetary motion are given as follows:

In conclusion, planets orbit around a star.

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The average acceleration of the shoes thrown at him, a =2.775 m/s².

To find the acceleration with given data we use this formula,

v = u + aΔt

Where,

v is final velocity

u is initial velocity

a is acceleration

Δt is time

So,

v - u = aΔt

a = v - u /Δt

a = 12km/hr - 0 / 1.2 s

a = 12km/hr / 1.2s

Changing km/hr into m/s,

1 kilometer/hour = 1000meters / 3600 seconds

We get,

12km/hr = 3.33m/s

a = 3.33 m/s / 1.2s

a = 2.775 m/s²

When an object is moving, its velocity is the rate at which its direction is changing as seen from a specific point of view and as measured by a specific unit of time. Velocity is the rate and direction of an object's movement, whereas speed is the time rate at which an object is moving along a path.

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Both horizontal and vertical acceleration is produced by the jet engines. While it does contribute to vertical acceleration, gravity has no effect on horizontal acceleration.

The term acceleration has to do with the change in the velocity with time. We know that velocity is a vector quantity hence we have to look at the magnitude and the direction of the quantity.

In the same vein, acceleration is a vector quantity. As such we could resolve it into the vertical and the horizontal directions just as we can do for velocity.

The true statement of the situation when we break the acceleration of this missile into two components, in the vertical and horizontal direction, is that; both horizontal and vertical acceleration is produced by the jet engines. While it does contribute to vertical acceleration, gravity has no effect on horizontal acceleration.

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The rock's maximum speed just as it hits the ground is 28m/s.

Given that the initial speed of the rock is u = -14m/s. (speed taken as negative because the rock thrown down from the cliff)

The height of the tower is h=30m.

Taking height of the tower as origin, then final position of the rock is s= -h= -30m.

On applying the second equation of motion:

s= ut +¹/₂ at²

-30 = -14t+0.5×(-9.8)t²

4.9t²+14t-30=0

On Solving the equation we get, t=1.43s.

To calculate that final speed when rock hits the ground, we apply first equation of motion:

v=u+gt

v=-14+(-9.8)(1.43)

v=-28m/s.

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The number of electrons is 1.9 * 10^20 electrons.

We know that it is possible to obtain the charge that the electron carries by the use of the formula;

Q = It

Q = magnitude of charge

I = current

t = time taken

Now we have the charge as;

Q = 0.5 A * 60 s = 30 C

Given that;

Q = ne

Q = charge

n = number of electrons

e = magnitude of electronic charge

n = Q /e = 30 C / 1.6 x 10-¹⁹ C​

n = 1.9 * 10^20 electrons

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Answer:

The graph would increase constantly as shown above until it reached 50m/s. At 10s, the graph would be flat at 50m/s until 20s.

Explanation:

Answer:

I think it's 12.5s

Explanation:

Bare with me, because I just started physics, but I think I have the answer right... Hopefully.

starting with your knowns, we know velocity is 25 m/s from the problem. you also can figure out your acceleration, -2 m/s.

You're looking for the time it takes until the ball stops rolling. Your time is unknown.

Your equation would be a=v/t (acceleration being a, velocity being v, and time being t)

You have to solve for t giving you t=v/a

Now you have to fill in your numbers. t=25m/s divided by -2m/s^2

Your answer should end up as -12.5

You have to solve for your units, but since you're finding time it's pretty straightforward in knowing you're dealing with seconds.

Hope this helped... :) sorry if it didn't-

The velocity component due north of the cheetah is 14.56 m/s.

The velocity component due west is 10.58 m/s.

The component's of the cheetah's velocity is calculated as follows;

Vy = V sinθ

Vy = 18 m/s x sin(54)

Vy = 14.56 m/s

Vx = V cosθ

Vx = 18 m/s x cos(54)

Vx = 10.58 m/s

Thus, the velocity component due north of the cheetah is 14.56 m/s.

The velocity component due west is 10.58 m/s.

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The rate at which the bullet decelerated is -10m/s²

The formula for calculating the deceleration of an object is referred to as:

Deceleration = initial velocity-final velocity/time

Substitute the given parameters to have:

Deceleration = 580-630/5

Deceleration = -50/5

Deceleration = -10m/s²

Hence the rate at which the bullet decelerated is -10m/s²

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Answer:

Shading coil

Explanation:

The shading coil prevents the solenoid vibrate

Hope this helps

The greatest amount of kinetic energy of the ball is when the ball is almost at the floor.

According to the Law of Conservation of Energy, the total energy of a system is conserved.

The total energy includes the kinetic energy and potential energy.

Thus KE+PE = k(constant)

Therefore, when kinetic energy is maximum, the potential energy is minimum and vice versa.

When the ball is still in the net, it is at its highest point. So, its potential energy is maximum and kinetic energy is minimium.

When the ball is about to hit the ground, its potential energy becomes minimum and kinetic energy becomes maximum.

Thus, the greatest amount of kinetic energy of the ball is when the ball is almost at the floor.

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The correct answer is 16.62m.

The acceleration brought on by gravity is the acceleration that an object experiences as a result of the gravitational attraction that attracts two objects. Since the SI unit for gravity and acceleration are the same, ms^-2 is used. The standard value for the earth's gravitational acceleration is represented by (g). At mean sea level, g has a standard value of 9.8 ms^-2.

a) Motion of egg is under gravity only so

v= initial speed

v= 4 m/s

b)

Time taken to reach the height point

t_1= v_0-v_top/2g = 4-0/9.8

=4/9.8=0.4

Maximum height attained by egg from the building's roof

h=v_0^2/2g=(4)^2/2×9.8=

=16/19.6=0.81

maximum height from ground

H=h+15.0m

=0.81+15.0=15.81m

Time taken to fall through a distance H is given by

t_2= √2H/g

= √2(15.81)/9.8

= √31.62/9.8

t_2=1.79

∴t=t_1+t_2

=0.4+1.79

=2.19 s

c)

d=h+h=0.81+0.81+15

=16.62

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Displacement has to do with the change of position with time in a specified direction.

The term displacement has to do with the change of position with time in a specified direction. Now let us proceed to solve the questions individually.

1) Displacement = x2 - x1 = 4.27 - 9.2 = -4.93 m

2) Velocity = displacement/ time = x2 - x1/t2 - t1 = 4.27 - 9.2/4.81 - 1.54

= -4.93 m/3.27 = -1.5 m/s

3) The average speed is obtained from;

9.2/1.54 + 4.27/4.81

= 5.97 + 9.08

= 15.05 m/s

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The electrical symbols used in schematic diagrams also represent the physical location of the circuit.

A schematic diagram is a basic, two-dimensional representation of an electrical system that shows the connectivity and operation of various electrical components.

A simplified drawing that uses symbols and lines to represent key information is called a schematic diagram. For instance, if you're taking the subway, you might see a "map" that shows all the stations along the route, but it won't show all the streets and structures you might pass.

The most typical symbols used in circuit diagramming are electrical symbols. In your circuit, amplifiers (represented by triangle shapes) boost the output signal. Your system's capacitors (parallel lines) store energy, whereas resistors (zigzag lines) lower current flow.

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The magnitude of magnetic field is 2194 N/C

Given,

r = 4 m

Q = 3.9 µC

Q = 3.9 × 10⁻⁶ C

Let, the electric field is " E "

E = (k × Q/r²)

E = (9×10⁹×3.9×10⁻⁶/4²)

E = 2193.75 N/C

E = 2194 N/C

A magnetic discipline is a vector field that describes the magnetic affect on moving electric prices, electric powered currents, and magnetic substances. A shifting charge in a magnetic subject reviews a pressure perpendicular to its personal velocity and to the magnetic area.

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The kangaroo's minimum vertical speed when it leaves the ground is 5.94 m/s

From the question given above, the following data were obtained:

The inintial velocity of the kangaroo can be obtained as illustrated below:

v² = u² – 2gh (since the ball is going against gravity)

0² = u² – (2 × 9.8 × 1.8)

0 = u² – 35.28

Collect like terms

u² = 0 + 35.28

u² = 35.28

Take the square root of both side

u = √35.28

u = 5.94 m/s

Thus, the minimum vertical speed of the kangaroo when it leaves the ground is 5.94 m/s

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The magnitude of the resultant force is 10.40 KN.

The problem is based on the concept of concurrent coplanar forces. The value of the resultant forces in the vertical direction is to be equated to zero to calculate the value of the angle.

The summation of the forces in the horizontal direction will provide the value of the resultant force in the horizontal direction.

Concurrent coplanar forces these forces emerge from a common point. These forces work in a common plane. The resultant of these forces in a direction is the sum of the forces in that direction.

The resultant force for a coplanar concurrent unidirectional force system is expressed as,

F=F+F, +F

Here, F, F2, and F3  are the unidirectional concurrent coplanar forces and are the resultant of the forces.

The resultant force will be equal to the sum of the forces in the horizontal direction.

FR = (8 kN)sin +(6 kN) sin(40°)

Substitute 54.939  for.

FR = (8 kN) sin(54.93°) +(6 kN)sin (40°) = 10.40 KN

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This statement is True that the pressure in the mesosphere is so low that a person will not be able to sustain in this layer without a spacesuit.

The mesosphere may be defined as the region in the earth's atmosphere which lies above the stratosphere and below the thermosphere. It has a very low temperature and pressure. The top of the mesosphere is the coldest part of Earth's atmosphere.

This layer is the highest layer of the Earth's atmosphere wherein all the gases of the atmosphere get mixed up rather than being layered in the atmosphere according to their masses. The pressure in the Mesosphere is very low the reason that it is very highly situated, and all the amount of air mass lies below this layer.

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The mass of the box is 11.80N

F= 42.5

a=3.60 m/[tex]s^{2}[/tex]

m=?

F=ma

m=F/a = 42.5/3.60

m=11.80N

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

Thrust, which increases an object’s velocity; drag, which decreases an object’s velocity; and torque, which causes changes in an object’s rotational speed, are all concepts connected to force.

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If h is the height of the water, then the volume of water is v = r2h. We get [tex]dv/dt[/tex] equal to 0.00994 m/min.

Here, radius = 8m

We have, [tex]V = \pir2h[/tex]

[tex]dV/dT= (\pir2) dh/dt[/tex]

[tex]dV/dT= (\pi82) dh/dt[/tex]

[tex]dV/dT= (\pi64) dh/dt[/tex]

Given [tex]dV/dT = 2[/tex]

Therefore, [tex]dh/dt = 2/(64\pi) = 0.00994 m/min[/tex]

From the definition = a by way of integrating the preliminary velocity, v(0), and the consistent acceleration, one might also find the velocity at a later time, t.

(value of acceleration) means the rate of change of significance of the speed with recognize to time. then again |

| approach the magnitude of the price of change in speed with recognize to time (i.e. the importance of acceleration).

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The correct answer is 5.64.

Since the analogue signal is divided every 100 mV for accuracy of 50 mV, we have 50 discrete observations from 0 to 5V. Thus

It's given that the accuracy is +/- 50mV. This essentially means that the length of interval of permissible accuracy is 100mV.

Now, it's given that the analog voltage range is 0-5 V. So, the number of discrete points in 0-5V will be as follows:

50V/100mV.

Upon solving, it comes out to be 50.

The number of bits is defined by the formula log_2n, where n is the number of discrete points.

In this case, n = 50. Putting the value in the formula,

No of bits = log_2 50

Upon solving,

No of bits = 5.64

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The correct answer is convection.

Convection is the physical movement of material particles that transfers heat from a location of greater temperature to a region of lower temperature.

Convection is a heat-transfer process in which heat energy is transferred by the mass movement of fluid molecules, such as those found in gases and liquids. Under normal circumstances, gases and liquids are poor heat conductors, yet they are nonetheless capable of transferring heat.

Other than through diffusion, advection, or both, convection is the method used to transfer heat. Solids don't experience convection because the particles that make them up don't move.

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Density of liquid is  ρ = 1.735 [tex]g/cm^{3}[/tex].

Density of liquid is  determined by using formula

ρ = m/v

ρ = 34.719/20

ρ = 1.735 [tex]g/cm^{3}[/tex]

It is possible to measure a material's density by how closely it is packed. The mass per unit volume is how it is formally defined. Density Symbol: ρ or ρ = m/V, where ρ stands for density, m for mass, and V for volume.

The amount of "stuff" that is contained in a certain amount of space is measured by density. In comparison to the softer, lighter element gold, a block of the heavier element lead (Pb) will have a higher density (Au). Less dense than a brick is a block of Styrofoam. Mass per unit volume is how it is referred to.

Both absolute and relative densities are common; they are the two forms of density.

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Every type of orbit has a specific energy level is the statement of Niels Bohr’s atomic model that is true in this context related as to the atomic model.

According to the Bohr model, electrons orbit the nucleus at constant energies. Higher energy levels are also present in all orbits that are farther from the nucleus.

Here in, the Light is released as energy when any kind of electrons drop to a kind of lower energy level.

A known, the five elements are created by incredibly tiny particles called atoms when John Dalton first proposed the atomic hypothesis.

Atoms of various elements have different kinds of sizes, masses, and physical-chemical properties, which cannot be possibly separated.

Niels Bohr has further also developed a model that was totally focused on the quantum paradigm in response to this hypothesis.

The orbits that have the maximum orbital energy can be seen as 7s,5f,6d,7p.

Since every electron has kind of the same amount of charge, repulsion is what makes these electrons to stay as far apart as possible.

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The position of an object changes when you move, and this is known as parallax. For instance, if you turn your head a little from side to side while looking at a nearby object, the object will appear to be moving back and forth. 

Sit steady and look at an object while covering your right and left eyes alternately to observe parallax. As you do that, the object will appear to "bounce back and forth." We are able to calculate the distance to surrounding objects thanks to parallax. We frequently employ it in straightforward acts like taking up a pencil. Because stars are so far away, the angle by which their positions change is quite small—only a few hundredths of a degree. The change is so slight that astronomers employ an even smaller measurement of angle called an arc-second, which is equivalent to a sixty-fifth of a sixty-fifth of a degree. So, one arc-second is equal to 1/60x1/60 or 1/3600 of a degree.

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By the trigonometry the magnitude and direction of the smallest force p for which the resultant r of the two forces applied at a is vertical force p is 368.06  N.

A vector is a quantity or phenomenon with independent properties for both size and direction. The mathematical or geometrical depiction of a quantity is another meaning of the word. Vectors may be found in nature as force, momentum, electromagnetic fields, weight, and velocity.

The average is calculated by dividing the total by the vector's n elements. can be written as. Since the average is simply a rescaling of the total, the terms average and sum are frequently equivalent. A particular instance of the mean is the average.

balancing forces in horizontal,

425cos30 = Pcosa

P = 425cos30 / cosa   this should be smallest

that means cosa should be biggest.

max(cosa)  = 1

at a = 0 degrees.

so  p = 425cos30/1  = 368.06  N

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