Which of the following cools the air in a household refrigerator?
a. absorption of the...
Physics, 04.11.2019 05:31 petriajack8375
Which of the following cools the air in a household refrigerator?
a. absorption of the heat from the air due to evaporation of the liquid refrigerant
b. reduction of the air temperature due to condensation of the gaseous refrigerant
c. the transfer of heat to the evaporator due to compression of the liquid refrigerant
d. the transfer of heat from the air to the compressor due to expansion of the gaseous refrigerant
Answers: 3
Physics, 21.06.2019 22:40
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 11:30
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? your
Answers: 2
Physics, 22.06.2019 12:00
In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c
Answers: 1
Advanced Placement (AP), 01.05.2021 21:10
English, 01.05.2021 21:10
Mathematics, 01.05.2021 21:10
Chemistry, 01.05.2021 21:10
Mathematics, 01.05.2021 21:10
History, 01.05.2021 21:20
Mathematics, 01.05.2021 21:20
Mathematics, 01.05.2021 21:20
Mathematics, 01.05.2021 21:20