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lorasvet [3.4K]
2 years ago
13

Does hot air rise? Why?

Physics
1 answer:
pashok25 [27]2 years ago
8 0

Answer: Yes

Explanation:

does hot air rise

er substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward. This is the concept used in the hot air balloons.

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A 65.0 kg skier slides down a 37.20 slope with mu = 0.107.<br><br>What is the friction force?
zmey [24]

Answer:

54.3N

Explanation:

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F(friction)=mu*F(normal)

F(friction)=(0.107)(507.39)

F(friction)=54.3N

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2 years ago
Please help I’m stuck
Gnoma [55]

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2 years ago
Energy transformation in wound spring of a toy car?<br>give your own answrr​
BaLLatris [955]

Answer:

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Explanation:

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makkiz [27]

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