Gravitation — Physics STD 11 — Question

A boat at anchor is rocked by waves of velocity 25m/s, having crests 100 m apart. The boat bounches up once in every

The dimension of point mass is –

The temperature of an ideal gas is increased from 120 K to 480 K. If at 120 K the root mean square velocity of the gas molecules is v, at 480 K it becomes

Moment of inertia for point masses –

If the angle between force and displacement is acute then the work done is

Angular momentum is given by –

Negative gradient of potential energy gives

Energy required to move a body of mass ‘M’ from an orbit of radius 2R to 3R is …….