A ball of mass 6.00 kg moving with a velocity of 10.0 ms-1 collides with a 2.0 kg
ball moving in the opposite direction with a
velocity of 5.0 ms-1. After the collision the
two balls coalesce and move in the same
direction. Calculate the velocity of the
composite body.​

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.