The value of G On the surface of earth is `6.67 xX 10-^11 Nm^2 kg ^2`. What is its value on the surface of the moon?

The acceleration due to gravity on the surface of a moon is 1.7 ms^-2 . What is the time period of simple pendulum on the surface of moon if the time period on surface of earth in 3.5 sec.

The radius of the Moon is frac(1)(4)^th the radius of the earth and its mass is frac(1)(96)^th the mass of the earth. If the escape velocity from the surface of the earth is 11.2k ms^(-1) , find the escape velocity from the surface of the Moon.

The value of G in CGS system is 6.67 xx10^-8 dyne cm^2g^-2 . Calculate the value in SI units.

A force of 1200 N acts on the surface of area 10 cm2 normally. What would be the thrust and pressure on the surface?

The surface area of a sphere is 616cm^2 .Find its radius.

For a reaction N_2O_5(g) rarr 2NO_2 + 1/2O_2 . The value of rate of disappearance of N_2O_5 is given as 6.25xx10^-5 mol L^-1s^-1 . Calculate the rate of formation of NO_2 and O_2 .

If the change in the value of ‘g’ at a height h above the surface of the earth is the same as at a depth x below it, then (both x and h being much smaller than the radius of the earth):

Density of gold is 19.3g cm^(-3) . What is its value in SI unit?

What is the value of escape velocity from the surface of (/) earth, (//) moon?