Find The resultant of the following two displacement at 2m at 40° and 4m at 127° the angle being taken
relative to the +x-axis).​

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

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)

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false