An automobile passes by a point to 120 km / h overcoming the allowed speed, at 4s a police goes out to pursue it constant accelerated, if it reaches 6000m determine: a) - how long the persecution lasts; b) -what did the police do?

6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Why should seat belts not be mandatory quick plz