Physics, 18.07.2020 22:01 FlyToTheGalaxy
A closed, rigid tank fitted with a paddle wheel contains 0.1 kg of air, initially at 300 K, 0.1 MPa. The paddle wheel stirs the air for 20 minutes, with the power input varying with time accordingto W = -10t, where W is in watts and t is time, in minutes. The final temperature of the air is 1060K. Assuming ideal gas behavior and no change is kinetic or potential energy, determine for the air(a) the final pressure, in MPa, (b) the work, in kJ, and (c) the heat transfer, in kJ.
Answers: 2
Physics, 21.06.2019 14:40, shay68596
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.
Answers: 3
Physics, 22.06.2019 12:00, JvGaming2001
In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer
Answers: 3
Physics, 22.06.2019 20:30, cnicole71
Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3
Answers: 1
Physics, 22.06.2019 22:10, bankrollbaby01
M1 = 2.8 kg, m2 = 6.72 kg, m3 = 11.2 kg, byas in .is ,is .toof m3 it 0.91 m. (in m/s)
Answers: 3
A closed, rigid tank fitted with a paddle wheel contains 0.1 kg of air, initially at 300 K, 0.1 MPa....
Chemistry, 09.02.2021 05:40
English, 09.02.2021 05:40
Biology, 09.02.2021 05:40
Mathematics, 09.02.2021 05:40
Mathematics, 09.02.2021 05:40