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ad-work [718]
3 years ago
15

A rock of mass m is twirled on a string in a horizontal plane. The work done by the tension in the string on the rock is:

Physics
1 answer:
Varvara68 [4.7K]3 years ago
7 0

Answer: c) 0

Explanation:

Work tension is zero because in any infinitesimal time interval, the tension force is directly perpendicular to the displacement.

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ohaa [14]

Answer:

option D.

Explanation:

The correct answer is option D.

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Physics does not give the answers of question like God created universe , matter is unreal, etc.

So, there might will be possibility that in future complete physics will give the answer of all these questions i.e. correct answer is All of the above.

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3 years ago
If Weight=mg and Force=ma, and the only force acting on an object is gravity, then the masses cancel each other out and you are
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When g=a, that means everything on earth fall at the same rate.

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<h3>Why is gravity equal to acceleration?</h3>

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5 0
2 years ago
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A voltage of 12 cos(I000t+45) Vis applied to a circuit in which a resistor of 4 .n, aninductor of L H, and a capacitor of 100 μF
vlabodo [156]

Answer:

0.01 H

Explanation:

V = 12 cos (1000t + 45)

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