3 years ago

What kind of energy does a flying bullet have?

Physics

2 answers:

Neko [114]3 years ago

6 0

Answer:

A lot of deadly energy. I think you're looking for kinetic thought

Explanation:

Musya8 [376]3 years ago

3 0

It mainly travels by kinetic energy

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What happens when a sound wave passes from oil into air? A. the sound wave slows down and bounces back B. the sound wave slows d

Jlenok [28]

Oil is optically denser than water. When sound/light goes from optically denser medium to optically rarer medium, their velocity increase and they moves away for normal.

<h3>Appropriate Answer:</h3>

The sound wave speeds up and bends

$\Large{ \underline{ \boxed{ \pink{ \bf{Option \: (D)}}}}}$

As, In optics we learnt that light undergoes refraction when travels from medium of different densities. Similarly, Sound also follows the law of refraction.

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3 years ago

A well-thrown ball is caught in a well-padded mitt. If the deceleration of the ball is 2.10×104 m/s2 , and 1.85 ms (1 ms = 10−3

ankoles [38]

Answer:

u = - 38.85 m/s^-1

Explanation:

given data:

acceleration = 2.10*10^4 m/s^2

time = 1.85*10^{-3} s

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from equation of motion we have following relation

v = u +at

0 = u + 2.10*10^4 *1.85*10^{-3}

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0 = u + 38.85

u = - 38.85 m/s^-1

negative sign indicate that the ball bounce in opposite directon

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3 years ago