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Andreyy89
3 years ago
5

An astronaut spends 3 months in space and then returns to Earth. When she returns to Earth, her muscles have weakened. This is b

ecause of the stronger gravitational force that was exerted on her muscles in space.
true or false
Physics
2 answers:
Pepsi [2]3 years ago
6 0
False. there's less gravitational force in space than on earth
SIZIF [17.4K]3 years ago
3 0
False. Her muscles weakened because of the WEAKER force of gravity in space. Muscles are one of those things that if you don't yoozum, you loozum. Your brain is another one.
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ytyug

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A lamp is rated for 240v,2.5A.what is the cost of using the lamp for 3hrs if 1kWh of electricity cost #12​
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≈ 22¢

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hammer [34]

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The value of change in internal energy of the gas = + 1850 J

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Work done on the gas (W) =  - 1850 J

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From the first law  we know that Q = Δ U + W ------------- (1)

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Since it is adiabatic compression of the gas so heat transfer to the gas is zero.

⇒ Q = 0

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⇒ Δ U = - (- 1850)

⇒ Δ U = + 1850 J

This is the value of change in internal energy of the gas.

7 0
3 years ago
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