Physics, 23.12.2019 05:31 keatonjarvis
If a device uses 280 watts of power a day, about how many kilowatt-hours will it use in 30 days?
Answers: 2
Another question on Physics
Physics, 21.06.2019 19:40
An ideal spring has a spring constant (force constant) of 2500 n/m, is stretched 4.0 cm, how much elastic potential energy does it possess? (a) 3j (b) 0.00j (c) 1j (d) 2j (e) 4j
Answers: 1
Physics, 22.06.2019 10:30
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
Physics, 22.06.2019 11:00
Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg • what must the total momentum of the system be after the train cars collide? kg •
Answers: 2
Physics, 22.06.2019 11:30
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
You know the right answer?
If a device uses 280 watts of power a day, about how many kilowatt-hours will it use in 30 days?...
Questions
Mathematics, 10.03.2021 21:10
Chemistry, 10.03.2021 21:10
Chemistry, 10.03.2021 21:10
History, 10.03.2021 21:10
World Languages, 10.03.2021 21:10
Mathematics, 10.03.2021 21:10
Mathematics, 10.03.2021 21:10
Mathematics, 10.03.2021 21:10
