Astudent jobs around a square park two times. starting and ending at the gate to the park. the square jogging track is 40 meters on each side. which of the following statements is true? the distance was 320 meters, and displacement was 160 meters the distance was 160 meters, and displacement was 40 meters the distance was 320 meters, and the displacement was 320 meters the distance was 320 meters, the displacement was 0 meters

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

The mantle is made up of which structural zones?

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)