The satellite of mass m revolving in a circular orbit of radius r around the earth has kinetic energy E. then, its angular momentum will be
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Two sphere of masses m and M are situated in air and the gravitational force between them is F. The space around the masses in now filled with a liquid of specific gravity 3. The gravitational force will now be
(a) What are fluids? Name two common fluids.(b) State Archimedes ' principle.(c) When does an object float or sink when placed on the surface of a liquid?
Choose whether true or false:-Submarines are based on the archimedes' principle.
Name the principle which gives the magnitude of buoyant force acting on an object immersed in a liquid.
Buoyant force on an object immersed in a liquid acts in upward direction.