Which of the following is not a kind of electromagnetic wave?
A. Water waves
B. Microwaves...
Physics, 04.01.2022 04:40 aruhter9485
Which of the following is not a kind of electromagnetic wave?
A. Water waves
B. Microwaves
C. Radar
D. Radio and television waves
Answers: 1
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 05:30
Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.
Answers: 3
Physics, 22.06.2019 09:00
What is a possible result of higher air temperature caused by global warming
Answers: 1
Physics, 22.06.2019 09:30
Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
Answers: 2
History, 17.02.2021 01:00
Mathematics, 17.02.2021 01:00
Mathematics, 17.02.2021 01:00
Social Studies, 17.02.2021 01:00
Biology, 17.02.2021 01:00
Mathematics, 17.02.2021 01:00
English, 17.02.2021 01:00