The mass M of a planet earth is uniformly distributed over a spherical volume of radius R. Calciulate the energy needed to de assemble the planet against the gravitational pull amongst its constitutent particles. Given `MR=2.5xx10^(31)kg and g=10ms^(-2)`.

Mass M , of a planet earth is uniformly distributed over a spherical volume of radius R . Calculate the energy needed to deassemble the planet against the gravitational pull ammongst its consituent particles. Given mR = 2.5 xx 10^(31) kg m and g = 10 ks^(-2) .

A planet of mass M has uniform density in a spherical volume of radius R . Calculate the work done by the external agent to deassemble the planet in eight identical spherical part against gravitational pull amongst its constitute particle.

(i). A charge of Q coulomb is uniformly distributed over a spherical volume of radius R metre Obtain an expression for the energy of the system. (ii). What will be the corresponding expression for the energy needed to completely diassemble the planet earth against the gravitational pull amongst its constituent particles? Assume the earth to be a sphere of uniform mass density. calculate the energy, given that the product of the mass and the radius of the earth to be 2.5xx10^(31)kg-m

The mass of a planet and its diameter are three times those of earth's. Then the acceleration due to gravity on the surface of the planet is : (g =9.8 ms^(-2))

How much energy should be supplied to a body of mass 500kg, so that it can escape from the gravitational pull of the earth? [g=10 m//s^(2) and R=6400 km]

The radius of the earth is 6.37xx10^(6) m its mass 5.98xx10^(24) kg determine the gravitational potential on the surface of the earth Given G=6.67 xx10^(-11) N-m^(2)//khg^(2)

Taking moon's period of revolution about earth as 20 days and neglecting the effect of the sun and the effect other planet on its motion, calculate its distance from the earth. Given G=6.67xx10^(-11)Nm^(-2)kg^(-2) and mass of the earth =6xx10^(24)kg .