Physics, 06.01.2020 03:31 cylertroutner
Asteel cylinder with a moveable piston on top is filled with helium (he) gas. the force that the piston exerts on the gas is constant, but the volume inside the cylinder doubles, pushing the piston up. which of the following answers correctly states the cause for the change described in the scenario? the temperature increased. the density of the helium atoms decreased. the pressure decreased. the helium atoms increased in size.
Answers: 3
Physics, 22.06.2019 02:50
20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.
Answers: 3
Physics, 22.06.2019 06:20
Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
Physics, 22.06.2019 06:30
Which one of the following research methods can show cause and effect
Answers: 1
Physics, 22.06.2019 12:00
Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter
Answers: 1
Asteel cylinder with a moveable piston on top is filled with helium (he) gas. the force that the pis...
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