3 years ago

Which of the following is considered a physical change?

Physics

2 answers:

mart [117]3 years ago

8 0

The answer is C, evaporating water.

zmey [24]3 years ago

4 0

Answer:

C)evaporating of water

Explanation:that is because waters physical property is lost after evaporating

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Answer:

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2 years ago

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scoundrel [369]

Answer:

The answer you have selected is correct.

Explanation:

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3 years ago

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3 years ago

Space debris left from old satellites and their launchers is becoming a hazard to other satellites. (a) Calculate the speed of a

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Answer:

Part a)

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Part b)

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Explanation:

Part a)

As we know that orbital velocity at certain height from the surface of Earth is given as

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here we know that

$M = 5.98 \times 10^{24} kg$

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now we have

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Part b)

When a loose rivet is moving in same orbit but at 90 degree with the previous orbit path then in that case the relative speed of the rivet with respect to the satellite is given as

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2 years ago

A girl weighing 45kg is standing on the floor, exerting a downward force of 200N on the floor. The force exerted on her by the f

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Answer:

Equal to 200 N..........

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2 years ago