Based on this electric field diagram, which statement best compares the charge of A with B? A. A is negatively charged and B is positively charged. The charge on A is greater than that on B. B. A is negatively charged and B is positively charged. The charge on A is less than that on B. C. A is positively charged and B is negatively charged. The charge on A is greater than that on B.

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

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)