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matrenka [14]
3 years ago
15

student built a simple heat engine that could lift masses. If the heat engine takes in 300 J of heat and loses 50 J to the envir

onment, how much height will it lift a 1.5 kg mass?
Physics
1 answer:
k0ka [10]3 years ago
4 0

Answer:

So it will lift the mass by h = 17 m

Explanation:

As per energy conservation we know that

Q_1 = W + Q_2

here we know that

Q_1 = 300 J

Q_2 = 50 J

now we have

W = 300 - 50

W = 250 J

so work done by the engine is 250 J

now we have

W = mgh

250 = 1.5 \times 9.81 \times h

h = 17 m

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vovangra [49]
Refer to the diagram shown below.

g = 9.8 m/s², and air resistance is ignored.

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3 years ago
You add 50 mL of water at 20°C to 200 mL of water at 70°C. What is the most
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A sealed tank containing seawater to a height of 12.8 m also contains air above the water at a gauge pressure of 2.90 atm . Wate
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Answer:

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3 years ago
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