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.
Connecting you to a tutor in 60 seconds.
Get answers to your doubts.
A balloon filled with hydrogen rises in air. explain the reason.
FIll in the blank.
In what direction does the buoyant force on an object immersed in a liquid act?
The distance of the two planets from the Sun are 1013m and 1012m, respectively. Find the ratio of time periods and speeds of the two planets.
Archimedes' principle states that the buoyant force applied to an object
Suppose the earth increases its speed of rotation . At what new time period will the weightof a body on the equator becomes zero? Take g=10s2m and radius of the earth R=6400km.
A body weighs 5 N in air and 2 N when immersed in a liquid. The buoyant force is
Two satellites of earth S1 and S2 are moving in the same orbit. The mass of S1 is four times the mass of S2. Which one of the following statements is true?