Chapter 10 – Gravitation
The radius in kilometers, to which the present radius of the earth (R =6400 km) is to be compressed so that the escape velocity is increased ten times is
22
Sep
The radius in kilometers, to which the present radius of the earth (R =6400 km) is to be compressed so that the escape velocity is increased ten times is The radius in kilometers to which the present radius of the earth (R =6400 km) is to be compressed so that the escape velocity is increased [...]
Two balls A and B are thrown vertically upwards from the same location on the surface of the earth with velocities 2gR/3‾‾‾‾‾√ and 2gR/3‾‾‾‾‾‾√ respectively, where R is the radius of the earth and g is the acceleration due to gravity on the surface of the earth. The ratio of the maximum height attained by A to that attained by B is
22
Sep
Two balls A and B are thrown vertically upwards from the same location on the surface of the earth with velocities 2gR/3‾‾‾‾‾√ and 2gR/3‾‾‾‾‾‾√ respectively, where R is the radius of the earth and g is the acceleration due to gravity on the surface of the earth. The ratio of the maximum height attained by [...]
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Two balls A and B are thrown vertically upwards from the same location on the surface of the earth with velocities 2gR/3‾‾‾‾‾√ and 2gR/3‾‾‾‾‾‾√ respectively ,
where R is the radius of the earth and g is the acceleration due to gravity on the surface of the earth. The ratio of the maximum height attained by A to that attained by B is ,
What is the escape velocity for a body on the surface of a planet on which the acceleration due to gravity is (3.1)^2 ms^−2 and whose radius is 8100 km?
22
Sep
What is the escape velocity for a body on the surface of a planet on which the acceleration due to gravity is (3.1)^2 ms^−2 and whose radius is 8100 km? What is the escape velocity for a body on the surface of a planet on which the acceleration due to gravity is (3.1)^2 ms^−2 and [...]
The escape velocity of an object from the earth depends upon the mass of the earth ( M ), its mean density (ρ), its radius ( R ) and the gravitational constant ( G ). Thus the formula for escape velocity is
22
Sep
The escape velocity of an object from the earth depends upon the mass of the earth ( M ), its mean density (ρ), its radius ( R ) and the gravitational constant ( G ). Thus the formula for escape velocity is its mean density (ρ) its radius ( R ) and the gravitational constant [...]
The escape velocity corresponding to a planet of mass M and radius R is 50 km s^−1. If the planet’s mass and radius were 4M and R, respectively, then the corresponding escape velocity would be.
22
Sep
The escape velocity corresponding to a planet of mass M and radius R is 50 km s^−1. If the planet’s mass and radius were 4M and R, respectively, then the corresponding escape velocity would be. respectively The escape velocity corresponding to a planet of mass M and radius R is 50 km s^−1. If the [...]
A body is projected up with a velocity equal to 3/4 of the escape velocity from the surface of the earth. The height it reaches is (Radius of the earth is R)
22
Sep
A body is projected up with a velocity equal to 3/4 of the escape velocity from the surface of the earth. The height it reaches is (Radius of the earth is R) A body is projected up with a velocity equal to 3/4 of the escape velocity from the surface of the earth. The height [...]
A ball is thrown vertically upwards with a velocity equal to half the escape velocity from the surface of the earth. The ball rises to a height h above the surface of the earth. If radius of the earth is R, then ratio h/R is
22
Sep
A ball is thrown vertically upwards with a velocity equal to half the escape velocity from the surface of the earth. The ball rises to a height h above the surface of the earth. If radius of the earth is R, then ratio h/R is Mass remaining constant the radius of the earth shrinks by [...]
The work done in shifting a particle of mass m from the centre of earth to the surface of the earth is (where R is the radius of the earth )
22
Sep
The work done in shifting a particle of mass m from the centre of earth to the surface of the earth is (where R is the radius of the earth ) The work done in shifting a particle of mass m from the centre of earth to the surface of the earth is (where R [...]
A body of mass m rises to a height h 5/R from the earth’s surface where R is the earth’s radius. If g is acceleration due to gravity at the earth’s surface, the increase in potential energy is
22
Sep
A body of mass m rises to a height h 5/R from the earth’s surface where R is the earth’s radius. If g is acceleration due to gravity at the earth’s surface, the increase in potential energy is A body of mass m rises to a height h 5/R from the earth's surface where R [...]
A particle of mass M is placed at the centre of a uniform spherical shell of mass 3M and radius R . The gravitational potential on the surface of the shell is:
22
Sep
A particle of mass M is placed at the centre of a uniform spherical shell of mass 3M and radius R . The gravitational potential on the surface of the shell is: A particle of mass M is placed at the centre of a uniform spherical shell of mass 3M and radius R . The [...]