Answer: A force must cause a displacement in order for work to be done. A book falls off a table and free falls to the ground. Yes. This is an example of work.
Explanation:
Answer:
a ) option 2 is correct
b) -ve acceleration for upward motion ,0 acceleration at top point ,+ve acceleration on downward motion ...
Explanation:
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A gamma ray is a strong energy ray that has nothing no charge neither mass.
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Because sound waves don't travel through the vaccume of space. Hope this helped
The Splitting of a nucleus