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Helen [10]
3 years ago
9

If a ray hits a plane mirror at 45 degrees, what angle will it bounce off at?

Physics
1 answer:
anastassius [24]3 years ago
4 0

Answer:

up towards space lol it's 190

Explanation:

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A solid insulating sphere of radius R = 1.0 m that carries a positive charge Q1 = 1.0 mC uniformly distributed over it is concen
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Why sounds hear clearly at night than day? <br><br><br>No one give proper answer. ​
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3 years ago
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babunello [35]

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6 0
3 years ago
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only
vlabodo [156]

Answer:

15.8m/s

Explanation:

This problem can be solved by taking into account the conservation of the momentum. In this case the momentum of the astronaut and the bag of tools must equal the momentum of the astronaut and the bag of tool after the astronaut throws the bag.

Hence, we have

p_{before}=p_{after}\\(m_{a}+m_{b})v=m_{a}v_{a}+m_{b}v_{b}

where ma and va are the mass and velocity of the astronaut, mb and vb are the mass and velocity of the bag, after the astronaut throw the bag. The velocity v is the velocity where the astronaut has the bag of tool

By taking into account that the velocity of the astronaut must be zero to keep him near of the space station, we have that vb = 0.

Thus

(124 + 19.0)2.10=19.0v_{b}\\v_{b}=\frac{300.3}{19.0}=15.8m/s

8 0
4 years ago
Read 2 more answers
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