A point mass m is placed inside a spherical shell of radius R and mass M.
Two identical spheres of radius R made of the same material are kept at a distance d apart.
Two particles of equal mass go round a circle of radius R under the action of their mutual gravitational attraction.The speed of e..
Two identical solid copper sphere of radius R are placed in contact with each other. the gravitational attraction between them is ..
Three particles each of mass m are situated at the vertices
Distance between the centers of two stars is 10a. The masses
A body is projected vertically upwards from the botton of a crater
It is possible to put an artificial satellite into orbit
The weight of a body on surface of the earth is 12.6 N. When it is raised to a height half the radius of earth, its weight will be
Which of the following statements about the gravitational constant is true
Correct form of gravitational law is
Reason of weightlessness in a satellite is
The force of gravitation is
A body is projected with a velocity of 2 Ã— 11.2 km/s from the surface of earth. The velocity of the body when it escapes the g..
One can easily "weight the earth" by calculating the mass of earth using formula (in usual notation)
Which force in nature exits every where
A body weights 500 N on the surface of the earth. How much would it weigh half-way below the surface of the earth?
If g is the acceleration due to gravity on the earthâ€™s surface, the gain in the potential energy of an object of mass m rai..
A large spherical mass M is fixed at one position and two
The gravitational force Fg between two objects does not depend on
Two spherical bodies of mass M and 5 M and radii R and 2 R, respectively are released in free space with initial separation betwee..
If g is the acceleration due to gravity on the surface of earth, its value at a height equal to double the radius of earth is
Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration..
Imagine a light planet revolving around a very massive star
A simple pendulum is oscillating without damping.
If the distance between twl masses is doubled, the gravitational attraction between them
If the radius of the earth were to shrink by one percent, its mass remaining the same, the acceleration due to gravity on the eart..
Two particles of equal mass m go around a circle of radius R under the action of their mutual gravitational attraction. The speed ..
Two astronauts are floating in gravitational free space after having lost
four particles, each of the mass. m and equidistant from each other
If g e , g h and g d be the accelerations due to gravity at earth\s surface, a height h and at depth d respectively. Then,
A satellite is moving with a constant speed
The atmosphere is held to the earth by
A spherically symmetric gravitational system of particles
The centripetal force acting on a satellite orbiting round the earth
Three equal masses of 1 kg each are placed at the vertices of an equilateral triangle PQR and a mass of 2kg is placed at the centr..
if g is the acceleration due to gravity on the earths surface, the gain
An artificial satellite is moving in a circular orbit and earth with a speed equal
The masses and radii of the earth and the moon are m1,R1
If g is the acceleration due to gravity on the earths surface
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