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Crazy boy [7]
3 years ago
9

Which of the following is an example of sound energy

Physics
1 answer:
dedylja [7]3 years ago
4 0
Sound energy is produced when an object vibrates so an example would be a telephone ringing or someone playing a bass guitar 
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When an automobile moves with constant speed down a highway, most of the power developed by the engine is used to compensate for
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Answer:

F = -4567.40 N

Explanation:

Given that,

The power developed by the engine, P = 196 hp

1 hp = 746 W

196 hp = 146157 W

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Let F is the total friction force acting on the car. The product of force and velocity is called the power developed by the engine. It is given by :

P=-F\times v

F=\dfrac{-P}{v}

F=\dfrac{-146157\ W}{32\ m/s}

F = -4567.40 N

So, the total frictional force acting on the car is 4567.40 N. Hence, this is the required solution.

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