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Crank
3 years ago
6

Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30° with respect to the norm

al to the surface. What is the angle of reflection from the second surface?

Physics
1 answer:
marta [7]3 years ago
7 0

Answer:

reflected angle - secod mirror = 60°

Explanation:

I attached an image with the solution to this problem below.

In the solution the reflection law, incident angle = reflected angle, is used. Furthermore some trigonometric relation is used.

You can notice in the image that the angle of reflection in the second mirror is 60°

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Answer:

The ball reaches Barney  head in  t = 8 \ s

Explanation:

From the question we are told that

 The rise velocity is  v  =  14.70 \  m/s

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   The horizontal velocity of the large object is  v_h  =  8.50 \  m/s

   

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   s = ut + \frac{1}{2} gt^2

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So  

     u = -14.7 m/s

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3 years ago
Positive Charge Q is distributed uniformly along the x-axis from x=0 to x=a. A positive point charge q is located on the positiv
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Answer:

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