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The force of gravitation 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
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
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 ..
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
Correct form of gravitational law is
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..
The gravitational force Fg between two objects does not depend on
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..
Which of the following statements about the gravitational constant is true
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)
Two astronauts are floating in gravitational free space after having lost
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 atmosphere is held to the earth by
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
The centripetal force acting on a satellite orbiting round the earth
Imagine a light planet revolving around a very massive star
A simple pendulum is oscillating without damping.
If the earth stops rotating, the value of g at the equator
If g is the acceleration due to gravity on the earths surface
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
LANDSAT series of satellites move in near polar orbits at an altitude of
hen the earth moves around the sun, the quantity which remains constant is
If the radius of earth is R, then the height h at which the value of g becomes one-fourth, will be
if ge and g m are the acceleration due to gravity on the moon,
A large spherical mass M is fixed at one position and two
If distance between earth and sun become four times, then time period becomes
Which of the following statements about the gravitational constant is true?
the time period of a satellite of the earth is 5 h.
An artificial satellite is moving in a circular orbit and earth with a speed equal
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