A spherical glass ball of mass `1.34xx10^(-4)` kg and diameter `4.4xx10^(-3)` m atakes 6.4 s to fall steadily thorugh a height of 0.381 m inside a large volume of oil of specitic gravity 0.943 Calcualte the visosity ifoil.

A spherical glass ball of mass 1.34 xx 10^(-4) kg and diameter 4.4 xx 10^(-3) m takes 6-4s to fall steadily through a height of 0-381 m inside a large volume of oil of specific gravity 0.943. Calculate the coefficient of viscosity of oil.

A planet has a mass of 2.4xx10^(26) kg with a diameter of 3xx10^(8) m. What will be the acceleration due to gravity on that planet ?

A planet has a mass of 2.4xx10^(26) kg with a diameter of 3xx10^(8) m. What will be the acceleration due to gravity on that planet ?

What will be the escape speed from a planet of mass 6xx10^(16) kg and radius 3.6xx10^(4) m ?