The density of an object has the equation d = If an object has a mass of 2.5 g and a volume of 1.3 cm3, what is its density?
A. 3.8 g/cm3
B. 0.52 g/cm3
C. 1.92 g/cm3
D. 1.2 g/cm3
SUBMIT

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

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)