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ratelena [41]
2 years ago
15

According to the law of conservation of energy, which statement must be true?

Physics
1 answer:
Nitella [24]2 years ago
5 0

Answer:

B. A system cannot take in additional matter.

Explanation: The total amount of energy in the universe remains constant, it can merely change from one form to another.

Hope it helps you:)))

have a good day

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1) A person riding their bike on a nice cloudy day travels 50 meters in 20 seconds.
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5.59

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3 years ago
A rock is dropped from a height of 3,245 m. If we ignore air resistance, how fast will it be travelling after it falls for 3.4 s
Marta_Voda [28]

Answer:

<u>954.4m/s</u>

Explanation:

For a free falling object,it has constant acceleration and a changing velocity.

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That js the answer I got. Hope it's right.

3 0
3 years ago
two cars are travelling side by side down a straight road in opposite directions. both cars are travelling at a speed of 22 m/s.
Nimfa-mama [501]

Answer: 44m/s

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Speed of Car A travelling left = 22m/s

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= 44m/s

3 0
4 years ago
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