IF THE SPEED OF A BODY IS INCREASED FOUR TIME HOW WILL ITS KINETIC ENERGY BE AFFECTED ? SHOW BY CALCULATION?
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Ответ:
yes kinetic energy will be affected it will get increased 16 times.
Explanation:
Ответ:
1.
Firstly removing off one strip and it leaves electrons behind, so the strip becomes positively charged.
2. The roll however is not negatively charged because it is "earthed " by the hand holding it, thus excess negatives repel each other away through the hand.
3.Tearing off the next strip and once more it leaves electrons behind, the new strip is also positively charged and will repel the first strip.
4. Then, tear two strips apart and one will leave electrons behind on the other. Meaning that one strip is positive and the other is negative and they will attract each other.