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Physics, 22.06.2019 10:30, zoebtharpe
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120ยฐf. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 23.06.2019 07:00, aesthvx44
A55-kg pilot flies a jet trainer in a half vertical loop of 1200-m radius so that the speed of the trainer decreases at a constant rate. knowing that the plane has a speed of 550 km/h at point a, and the pilot experiences weightlessness at point c (i. e., the normal force from the seat bottom is zero), determine (a) the deceleration of the plane, (b) the force exerted on her by the seat of the trainer when the trainer is at point b.
Answers: 2
Physics, 23.06.2019 12:00, andykuzy5447
Standing at the same location, which organism would have the greatest gravitational attraction to the earth? a- your pet dog b- your pet ant c- your pet opossum d- your pet elephant
Answers: 1
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