Air Masses And Fronts

Two particles of different masses are thrown simultaneously in air. Centre of mass of two balls while both are in mid air.

Air masses as an element of climate subsumes the characteristics of

A man stands in front of a hillock and fires a gun. He hears an echo after 1.5 sec . The distance of the hillock from the man is (velocity of sound in air is 330 m/s )

The stormy climate of the mid latitudes is a product of lying in the boundary zone of greatly contrasting air masses called the

The following figure represents a wave front AB which passes form air to another transparent medium and produces a new wave front CD after refraction . The refrective index of the medium is (PQ is the boundary between air and the medium).

Find the mass M in the situation shown in figure-2.212 such that m remains at rest on the front surface of M_(1) . The coefficient of friction between the front surface of M_(1) and that of m is mu .

Two bodies of different masses are dropped simultaneously from the top of a tower. If air resistance is proportional to the mass of the body then,