Physics, 19.02.2021 01:40 mackwackuwu
True or false: Everything in the universe works with harmony because of balanced energy
Answers: 2
Physics, 21.06.2019 16:10
If two metal balls each have a charge of -10^-6 c and the repulsive force between them is 1 n, how far apart are they? (coulomb's constant is k = 9.0x 10^9 n-m^2/c^2? 9.5 m 9.0 mm 9.5 cm 0.9 m .
Answers: 3
Physics, 22.06.2019 03:30
As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.
Answers: 3
Physics, 22.06.2019 04:10
An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?
Answers: 2
Physics, 22.06.2019 09:00
Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
Answers: 1
True or false: Everything in the universe works with harmony because of balanced energy...
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
English, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Spanish, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01
Mathematics, 16.09.2020 06:01