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An ideal gas in a piston is placed in a refrigerator, which removes 686 J of energy from the gas via cooling. The plunger on the piston is pushed down, which does 194 J of work on the gas.
1) What is the net change in the internal energy of the gas in the piston?
A sinusoidal wave traveling on a string has a period of 0.21s, a wavelength of 32cm, and an amplitude of 5.0cm. compute the speed of this wave
A 790-kg object and an 889-kg object are separated by 11.0 m. At what position (from the less massive object) can the 260-kg object be placed so as to experience a net force of 10 N towards the less massive object.
A properly motivated kangaroo can jump over an object. what is the velocity of the kangaroo, just when it returns to the ground
Find out the magnitude of the force exerted by the right pillar while a 90.0 diver stands at the far end of the board.
Two wires are identical, except that one is aluminium and one is gold. The aluminium wire has a resistance of 0.18. What is resistance of the gold wire.
Two current-carrying wires are exactly parallel to one another and both carry 3.5 A of current. What is the direction of the magnetic force caused by wire 2 on wire 1
Calculate the density of the liquid if an aluminum ball with mass of m1 = 4.10kg has an apparent mass of m2 = 1.90kg
The bullet remains embedded in the block, which is observed to slide a distance 0.280 m along the surface before stopping. What was the initial speed of the bullet?
A thin rod of length 9.5 m and mass 16 kg is supported at a 28? incline. Find the normal force exerted on the rod by the lower support
A certain ideal gas has a molar specific heat at constant volume CV = 7R/5. What is its molar specific heat at constant pressure
given a sargent ideal gas cycle. All process ar quasi-static, and the heat capacities are constant. Prove that the thermal efficiency of an engine performing a cycle
A pet-store supply truck moves at 25m/s north along a highway. Inside, a dog moves at 1.85m/s at an angle of 35° east of north. What is the velocity of the dog relative to road.
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