Answer: false
Explanation: they are created by gas liquid solid and can be destroyed
The answer is b) control variable
The elastic potential energy of a spring can be said to be the energy possessed by a spring due to a force that compresses or stretches the spring. This can also be said to be the work which is done by the applied force against the restoring force of the spring, which is stored as the elastic potential energy.
The elastic potential of a spring can be expressed as:
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Answer:
Option B is the correct answer.
Explanation:
Refer the figure we have centripetal force at bottom of circle
We have mass, m = 2 kg
Radius, r = 1.2 m
For circular motion to occur we have tension at top = 0
That is
Now let us find tension at bottom point
Option B is the correct answer.