At what point will the particles become free and escape as gas.

At what temperature will the particles in a sample of helium gas have an rms speed of 1.0 km//s ?

A particle is projected from the mid-point of the line joining two fixed particles each of mass m . If the separation between the fixed particles is l , the minimum velocity of projection of the particle so as to escape is equal to

With what velocity should a particle be projected so that its maximum height attained becomes equal to radius of earth ?

With what velocity should a particle be projected so that its height becomes equal to radius of earth?

Give reason On heating a sublimable solid, the molecules break free & escape from surface of the solid directly into vapour.

At what point should the origin be shifted if the coordinates of a point (4,5) become (-3,9)?

At what point should the origin be shifted if the coordinates of a point (4,5) become (-3,9)?

At what point should the origin be shifted if the coordinates of a point (4,5) become (-3,9)?

The process by which ligher earthly particles are made free from heavier particles by washing with water is called

A particle of mass 5kg is free to slide on a smooth ring of radius r=20cm fixed in a vertical plane. The particle is attached to one end of a spring whose other end is fixed to the top point O of the ring. Initially, the particle is at rest at a point A of the ring such that /_OCA=60^@ , C being the centre of the ring. The natural length of the spring is also equal to r=20cm . After the particle is released and slides down the ring, the contact force between the particle and the ring becomes zero when it reaches the lowest position B. Determine the force constant (i n xx 10^2Nm^-1) of the spring.