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VikaD [51]
2 years ago
11

The brightness of a star is determined

Physics
2 answers:
ad-work [718]2 years ago
8 0
The answer would be B
nasty-shy [4]2 years ago
4 0
100% C . By size and distance
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I think 1 and 3 is absolutely right but im not sure about number 2.
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A railroad car having a mass of 15 Mg is coasting at 1.5 m/s on a horizontal track. At the same time another car having a mass o
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Answer:

Explanation:

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kinetic energy after collision

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Loss of energy = 16.875 J

This energy appear as heat and sound energy that is produced during collision .

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To test the quality of a tennis ball, you drop it onto a floor from a height of 4.00m . It rebounds to a height of 2.00 m. If th
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