A point mass m is placed inside a spherical shell of radius R and mass M.
Two point masses A and B having masses in the ratio 4 : 3 are separated by
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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 spheres of radius R made of the same material are kept at a distance d apart.
Two sphere of mass m and M are situated in air and the gravitational force between them is F.
The force of gravitation is
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..
Reason of weightlessness in a satellite is
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
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..
Two particles of equal mass m go around a circle of radius R under the action of their mutual gravitational attraction. The speed ..
Correct form of gravitational law 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..
Which force in nature exits every where
Which of the following statements about the gravitational constant is true
The gravitational force Fg between two objects does not depend on
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..
If the distance between twl masses is doubled, the gravitational attraction between them
One can easily "weight the earth" by calculating the mass of earth using formula (in usual notation)
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 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..
Two astronauts are floating in gravitational free space after having lost
Imagine a light planet revolving around a very massive star
The atmosphere is held to the earth by
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..
The centripetal force acting on a satellite orbiting round the earth
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,
four particles, each of the mass. m and equidistant from each other
A satellite is moving with a constant speed
A simple pendulum is oscillating without damping.
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 large spherical mass M is fixed at one position and two
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
If the distance between the earth and the sun were half its
the mass of a spaceship is 1000kg. it is to be launched from the
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, the gain
LANDSAT series of satellites move in near polar orbits at an altitude of
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