3 years ago

An object in motion is usually seen moving in relation to an object that appears to

Physics

1 answer:

Norma-Jean [14]3 years ago

8 0

The answer is Stay In Place

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Engine 1 has an efficiency of 0.13 and requires 7200 J of input heat to perform a certain amount of work. Engine 2 has an effici

r-ruslan [8.4K]

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3,342.86J

Explanation:

<u>Engine 1</u>

Quantity of Input Heat, $Q_{H}$ = 7200J

Efficiency, η = 0.13

Efficiency, η $=\frac{W}{Q_{H}}$

⇒ W = η $Q_{H}$

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<u>Engine 2</u>

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Since Engine 2 performs same amount of work as Engine 1, then,

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Efficiency, η $=\frac{W}{Q_{H}}$

$Q_{H}$ = W / η

$Q_{H}=\frac{936}{0.28}$

$Q_{H}$ = 3,342.86J

The input heat require by the second engine is 3,342.86J

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