Two identical spheres of radius R made of the same material are kept at a distance d apart.
If the distance between the earth and the sun were half its
Two identical solid copper sphere of radius R are placed in contact with each other. the gravitational attraction between them is ..
Distance between the centers of two stars is 10a. The masses
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
One can easily "weight the earth" by calculating the mass of earth using formula (in usual notation)
Which of the following statements about the gravitational constant is true
Reason of weightlessness in a satellite is
The force of gravitation is
Correct form of gravitational law is
Which force in nature exits every where
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..
It is possible to put an artificial satellite into orbit
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..
The gravitational force Fg between two objects does not depend on
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..
A body weights 500 N on the surface of the earth. How much would it weigh half-way below the surface of the earth?
A large spherical mass M is fixed at one position and two
Three particles each of mass m are situated at the vertices
Two particles of equal mass m go around a circle of radius R under the action of their mutual gravitational attraction. The speed ..
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..
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 astronauts are floating in gravitational free space after having lost
If the distance between twl masses is doubled, the gravitational attraction between them
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
four particles, each of the mass. m and equidistant from each other
Imagine a light planet revolving around a very massive star
The atmosphere is held to the earth by
A simple pendulum is oscillating without damping.
A body is projected vertically upwards from the botton of a crater
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
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
If g is the acceleration due to gravity on the earths surface
If the earth stops rotating, the value of g at the equator
A spherically symmetric gravitational system of particles
the mass of a spaceship is 1000kg. it is to be launched from the
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