A compressed spring possesses more energy than a spring of normal length because the compressed spring has
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An object weighing 20 kg is raised through a height of 2 m. What will be the work done by the force of gravity in this process?
Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.
Which of the following is a Non-Luminous body?
AC is converted into DC by a
If the distance travelled by an object is zero, then the displacement of the object
Sensitivity of potentiometer can be increased by
Which among the following is not an environment friendly mode of producing electricity?
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