Class 11

Science

Physics

Gravitation

From a solid sphere of mass M and radius R, a spherical portion of radius R/2 is removed, as shown in the figure Taking gravitational potential $V=0atr=∞$, the potential at (G = gravitational constatn)

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A stone is allowed to fall from the top of a tower $100$m high and at the same time another stone is projected vertically upwards from the ground with a velocity of $25m/s$. Calculate when and where the two stones will meet.

How is Lactometer based on Archimedes' principle?

When a body is fully immersed in a liquid the apparent loss in the weight of body is equal to :

Buoyant force is directed

What is the relationship between buoyant force and the weight of liquid displaced?

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A particle of mass M is placed at the centre of a uniform spherical shell of equal mass and radius a. Find the gravitational potential at a point P at a distance $2a $ from the centre.