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संबंधित प्रश्न
A man lifts a mass of 20 kg to a height of 2.5 m. Assuming that the force of gravity on 1 kg mass is 10 N, find the work done by the man.
State the SI unit of work.
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
Draw a neat labeled diagram to show the direction of two forces acting on a body to produce rotation in it. Also mark the point about which rotation takes place.
State the energy changes which take place when A piece of magnesium wire is burnt in a jar of oxygen.
State the amount of work done by an object when it moves in a circular path for one complete rotation. Give a reason to justify your answer.
A proton is kept at rest. A positively charged particle is released from rest at a distance d in its field. Consider two experiments; one in which the charged particle is also a proton and in another, a positron. In the same time t, the work done on the two moving charged particles is ______.
