Two cars move at different velocities. Car A moves at a speed of 90 km/hr while Car B moves at a speed of 75 km/hr . If both cars collided with a wall made up of the same material, which of

the two cars will create greater impact of collision. Both cars have the same masses.

(Serious Answers Please)​

Iwill give brainliest if you answer right : )

What is the measure of a change in an objects velocity?

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)