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Damm [24]
3 years ago
15

Would you hear an echo if you shouted in your bedroom? Explain your answer.

Physics
1 answer:
nasty-shy [4]3 years ago
6 0

Answer:

no you would not hear an echo if you shouted in your bedroom

Explanation:

Echo is a sound produced when the original sound is reflected by walls of a given room. ... So for the case of a bedroom, no echo is produced because there are stuff and the furniture block the sound from reaching the wall hence no bouncing back of sound.

so sorry if i'm wrong :)

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3 years ago
A train travelling at 20 m/s has 2 000 000 J of kinetic energy. What is the mass of<br> the train?
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Answer:

<h2>10,000 kg</h2>

Explanation:

The mass of the train can be found by using the formula

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From the question we have

m \frac{2(2000000)}{ {20}^{2} }  =  \frac{4000000}{400}  =  \frac{40000}{4}  \\

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Hope this helps you

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