Im late for a date and i gotta get these

if a force of 16 n is applied to an object with a mass of 5 kg, the object will accelerate at

an automobile with a mass of 1239 kg accelerates at a rate of 4 m/s² in the forward direction. what is the net force acting on the automobile?

what is the weight on earth of a girl with a mass of 35 kg?

a 95 kg zebra is traveling 8 km/hr east. what is the zebra’s momentum

Ineed the answer to question 1 , i’m desperate

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

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)