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marusya05 [52]
4 years ago
9

A gas in a piston is compressed doing -439 j of work, and its internal energy increases by 318 j. how much heat flows? (be caref

ul with + and -. +w = expansion. +q = added, +u = temp goes up)
(unit = j)
Physics
1 answer:
Tomtit [17]4 years ago
5 0

Answer:

-121 J

Explanation:

w= -439 J

Q = ?

U= 318 J

U = Q-W

Q= U+W

  = 318+(-439)

 = 318-439

 =  -121 J

MINUS SIGN SHOWS HEAT FLOWS

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The prop blades of an airplane spin with a linear velocity of 875 m/s and have a centripetal acceleration on the farthest edge o
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<h3>Radius of the prop blade</h3>

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A ball is kicked horizontally from a 60 meter tall cliff at 10 m/s. How far from
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\large\boxed{\Delta d= \frac{1}{2}at^2}}

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