A 4.00 kg ball traveling north with a momentum of 11.2 kg m/s collides with a 6.0 kg ball traveling West with a momentum of 18 kg m/s. The two balls stick together and head off as one. What is the momentum of the combined masses? What is the velocity of the combined masses?

What determines the amount of inertia an object has

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

In a series circuit the __ is the same at every point