subject
Physics, 23.04.2020 01:29 EllaSue

A heat pump receives heat from a lake that has an average winter time temperature of 6o C and supplies heat into a house having an average temperature of 25o C. (a) If the house loses heat to the atmosphere at the rate of 60,000 kJ/h, determine the minimum power supplied to the heat pump (in kW) that can maintain the interior temperature of the house at 25o C. (b) Suppose the heat pump absorbs energy from the ground (10o C) instead of the lake, Calculate the minimum power (in kW) required for the heat pump.

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 20:20
Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?
Answers: 2
question
Physics, 22.06.2019 02:30
Agas contained within a piston-cylinder assembly undergoes three processes in series: process 1οƒ 2: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 2οƒ 3: constant pressure expansion to 1 liter. process 3οƒ 1: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
Answers: 2
question
Physics, 22.06.2019 06:10
Which transition by an electron will release the greatest amount of energy? oa ob oc od
Answers: 2
question
Physics, 22.06.2019 18:30
Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?
Answers: 1
You know the right answer?
A heat pump receives heat from a lake that has an average winter time temperature of 6o C and suppli...
Questions
question
Mathematics, 03.12.2019 19:31
Questions on the website: 13722363