A force of 100N acting on a body gives it a speed of 200ms-1 in 2 seconds. What is the mass of the body?
a. 1 kg b. 5 kg
C. 2 kg

d. 10 kg

True or false: the revolution of the earth creates day and night as it rotates around the sun

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)

What is similar between metals and suspensions