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4 years ago

Evidence of wave theory light

1 answer:

7 0

All of these things were seen in formal experiments by the 19th century. But some of them are easy to see in your own home. It's obvious that light can reflect - you just have to look in a mirror. Light bounces off the mirror and goes into your eye so you can see yourself. It's also obvious that light can refract: All you have to do is put a spoon in a large glass of water and watch how the spoon appears to bend.

That happens because the light is bending as it moves between air and water. Both of these things can be seen even more clearly in a laboratory using beams of light or lasers.

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2. The weights of four objects with different masses have been calculated to show how much each object would weigh on four diffe

meriva

Answer:

Explanation:

8 0

3 years ago

At what time t1 does the block come back to its original equilibrium position (x=0) for the first time? Express your answer in t

Furkat [3]

Answer:

t_1 = 0.5*pi*sqrt( m / k )

Explanation:

Given:

- The block of mass m undergoes simple harmonic motion. With the displacement of x from mean position is given by:

x(t) = A*cos(w*t)

Find:

- At what time t1 does the block come back to its original equilibrium position (x=0) for the first time?

Solution:

- The first time the block moves from maximum position to its mean position constitutes of 1/4 th of one complete cycle. So, the required time t_1 is:

t_1 = 0.25*T

- Where, T : Time period of SHM.

- The time period for SHM is given by:

T = 2*pi*sqrt ( m / k )

Hence,

t_1 = 0.25 * 2 * pi * sqrt( m / k )

t_1 = 0.5*pi * sqrt( m / k )

6 0

3 years ago

Which tem is the product of force and distance?

Sedbober [7]

It would be work I assure you

6 0

3 years ago

A key lime pie in a 10.00 in diameter plate is placed upon a rotating tray. Then, the tray is rotated such that the rim of the p

tatuchka [14]

Answer:

The distance in revolutions is $n = 7 \ revolutions$

The distance in degrees is $\theta =2529 ^ o$

The distance in radian is $\theta_{radian } = 44.15 \ rad$

$\theta_a = 1.26 \ rad$

Explanation:

From the question we are told that

The diameter of the pie is $d = 10.00 \ in$

The distance covered by the rim is $D = 208 \ in$

The number which the pie is divided into is k = 5

Generally the radius of the pie is mathematically represented as

$r = \frac{d}{2}$

=> $r = \frac{10}{2}$

=> $r = 5 \ in$

Generally the distance covered by the rim is mathematically represented as

$D= 2 \pi r n$

=> $208 = 2* 3.142 * 5 * n$

=> $n = 7 \ revolutions$

Generally converting to degrees

$\theta = n * 360$

=> $\theta = 7 * 360$

=> $\theta =2529 ^ o$

Generally converting to radian

$\theta_{radian } = \frac{\theta * \pi}{180 }$

=> $\theta_{radian } = \frac{2520 * 3.142 }{180}$

=> $\theta_{radian } = 44.15 \ rad$

Generally the angular size of one piece of the pie is

$\theta_a = \frac{2 * \pi }{ k}$

=> $\theta_a = \frac{2 * 3.142}{ 5}$

=> $\theta_a = 1.26 \ rad$

4 0

3 years ago

A trcuk exerts 2700 N of force on a car that is stuck in the mud, and does not move. How much work has the truck performed? Show

lions [1.4K]

I believe the correct answer would be zero. The work done in the truck is equal zero since the truck is not moving. Work by definition is the product of force and distance traveled due to the force. In this case, distance is zero giving us a zero work. Hope this helps.

7 0

3 years ago

Evidence of wave theory light​

Evidence of wave theory light