Which would produce mechanical waves?
A) burning a candle
B) hitting a wall with a hamme...
Answers: 2
Physics, 22.06.2019 05:30
What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?
Answers: 3
Physics, 22.06.2019 08:30
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
Answers: 3
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 16:20
Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius
Answers: 1
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