4 years ago

In a longitudinal wave, the places where particles of matter are closer together called

Physics

1 answer:

Blizzard [7]4 years ago

5 0

Explanation:

I hesitate to articulate upon the highest degree of accuracy!

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Three Carnot engines operate between the following temperature limits.

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Answer:c>a>b

Explanation:

Given

All the engine extracts same amount of heat(Q) from High-temperature reservoir

For a) 400 and 500 K

$\eta _{engine}=1-\frac{T_L}{T_H}$

$\eta _{engine}=\frac{work\ supplied}{heat\ supplied}$

$1-\frac{400}{500}=\frac{W_a}{Q}$

$W_a=\frac{Q}{5}$

For b)500 K and 600K

$1-\frac{500}{600}=\frac{W_b}{Q}$

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For c) 400 K and 600 K

$1-\frac{400}{600}=\frac{W_c}{Q}$

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So c will give the highest amount of work

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I believe the answer is D, only a small part of it

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a child riding a bicycle at 15 meters per second accelerates at -3,0 meters per second? for 4.0 seconds. What is the child's spe

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Explanation:

Given data

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deceleration a=3m/s^2

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substituting our data into the expression we have

v=15+3*4

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