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CBSE Class 11-science Answered

Calculate the gravitational potential energy of sun.
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
answered-by-expert Expert Answer
Lets consider sun as a solid sphere of radius R , mass M and uniform density

Considering it to be made of various concentric shells, then one shell of radius r and thickness dr has mass,

Answered by | 04 Jun, 2014, 15:23: PM

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CBSE 11-science - Physics
escape velocity.
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A tunnel is dug along the diameter of the earth. There is a particle of mass m at the centre of the tunnel. Find the minimum velocity given to the particle so that is just reaches to the surface of the earth (R=radius of the earth)
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If R is the radius of earth,then find the energy required to move a body of mass m from an orbit of radius 2R to 3R.
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Three masses, each of 1 kg, are placed on the vertices of equilateral triangle of side of length 0.4m.What is the total gravitational potential energy of the configuration?
Asked by prabal | 10 Jan, 2019, 21:10: PM
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CBSE 11-science - Physics
If the radius of a planet is doubled than of earth with same average densities. What is the ratio there escape velocities.
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CBSE 11-science - Physics
Can gravitational potential energy be 0. If yes how?
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A body of 50 gm has an escape velocity of 11.2 km/s what will be the escape velocity of 1 kg body?
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What is escape velocity? Derive its formula.
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Calculate the gravitational potential energy of sun.
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
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Find the gravitational intensity and the gravitational potential at the surface of a planet with mass 7 x 1020 kg and radius 1.5 x 106 m.(G = 6.67 x 10-11Nm2kg-2).
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
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