A heat pump removes 2000 j ofheat from the outdoors and
A heat pump removes 2000 J ofheat from the outdoors and delivers 3160 J of heat to the inside of a house.
(a) How much work does the heat pump need?
J
(b) What is the coefficient of performance of the heat pump?
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a cylindrical brass rod cross-sectional area 13 x10-5 m2 hangs vertically straight down froma ceiling when an 860-n
1a polystyrene rod consisting of two cylindrical portions ab and bc is restrained at both ends and supports two 6-kip
a carnot refrigerator is used in a kitchen in which thetemperature is kept at 304 k this refrigerator uses 214 j of
five thousand joules of heat is put into a carnot engine whosehot and cold reservoirs have temperatures of 540 and 200
a heat pump removes 2000 j ofheat from the outdoors and delivers 3160 j of heat to the inside of a housea how much work
an energy of 39 joules is stored in a metal sphere if a sparkcarrying 3 x 10-4 c discharges the metal sphere find the
an antifreeze solution is made by mixing ethylene glycolp1116 kgm3 with water suppose the specific gravityof such a
two identical mandolin strings under 200 n of tension aresounding tones with frequencies of 523 hz the peg of onestring
the length of each edge of an aluminum cube is 0068 m thecube is heated to 152degc from 25degc what is the increase in
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