Physics, 06.10.2019 00:30 josebrown521
Which best describes convection? it relies on the collision of particles within or between substances. it occurs in solids, liquids, or gases that are heated. it results when portions of a liquid cool and rise. it is driven by temperature differences within a fluid?
Answers: 2
Physics, 22.06.2019 14:20
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)
Answers: 3
Physics, 22.06.2019 19:30
Which describes increasing the efficiency of energy resource
Answers: 1
Physics, 22.06.2019 22:20
One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.
Answers: 2
Which best describes convection? it relies on the collision of particles within or between substance...
History, 27.09.2019 15:30
History, 27.09.2019 15:30
English, 27.09.2019 15:30
Biology, 27.09.2019 15:30
Computers and Technology, 27.09.2019 15:30
Computers and Technology, 27.09.2019 15:30
Spanish, 27.09.2019 15:30
History, 27.09.2019 15:30
Geography, 27.09.2019 15:30
Mathematics, 27.09.2019 15:30