Calculate the speed of a satellite in an orbit at a height of 1000 km from the Earth's surface.
`M_E = 6 xx 10^24 kg` `R_E = 6.4 10^6 m`

Derive an expression for critical velocity of satellite. Calculate the acceleration due to gravity at a height of 300 km from the surface of the earth. M = 6xx10^24kg R = 6400 km.

Find the gravitational potential energy of a body of mass 10 kg when it is at a height of 6400 km from the earth's surface. [M (earth) = 6xx 10^24 kg, R(earth) =6400 km]

Calculate the speed and period of revolution of a satellite orbiting at a height of 700 km above the earth's surface. Assume the orbit to be circular. Take radius of earth as 6400 km and g at the centre of earth to be 9.8 m//s^2

Calculate the time taken by a satellite for one revolution revolution revolving at a height of 6400 km above the earth's surface with velocity 5.6 km/s .

Solve the following examples / numerical problems: Find the gravitational potential energy of a body of mass 10 kg when it is on the earth's surface. [M_(earth) = 6 xx10^24 kg , R_(earth) = 6.4 xx10^6m, G= 6.67 xx 10^-11 N-m^2/kg^2]

Calculate the K.E, P.E, Total energy and Binding energy of an artificial satellite of mass 2000kg orbiting at a height of 3600 km above the surface of the earth Given: G = 6.67 xx 10^-11 Nm^2//kg R= 6400 km= 6.4 xx 10^6 m M= 6 xx 10^24 kg m = 2000 kg h = 3600 km = 3.6 xx 10^6 m

Find the gravitational potential energy of a body of mass 200 kg on the earth's surface . [M (earth) = 6xx 10^24 kg, R(earth) =6400 km]

Solve the following examples / numerical problems: Find the magnitude of the acceleration due to gravity at the surface of the earth. ( M= 6xx 10^24 kg, R= 6400 km)

Calculate the value of the universal gravitational constant from the given data. Mass of the Earth = 6xx10^24 kg, Radius of the Earth = 6400 km and the acceleration due to gravity on the surface = 9.8 m//s^2

Calculate the value of acceleration due to gravity on the surface of Mars if the radius of Mars = 3.4 xx 10^3 km and its mass is 6.4 xx 10^23 kg.