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A piston-cylinder system has initial volume 1.0 liters, and contains ideal gas at 300k and 1 atm, with Cv=2.5R. The piston is held fixed and the cylinder placed in contact with a heat reservoir at 600k. Once equilibrium is reached, the has is allowed to expand isothermally. When pressure reaches 1atm the gas is cooled at constant pressure to 300k. This cyclic process is repeated once a second. What is the rate at which the gas does work?
A 1.35 kg object is moving in the x direction at 16.4 m/s. Just 3.61 s later, it is moving at 28.8 m/s at 36.0^circ to the x axis. What is the magnitude of force applied throughout this time.
An 8 g bullet is fired into a 2.5 kg ballistic pendulum and becomes embedded in it. If the pendulum raises a vertical distance of 6cm, compute the initial speed of the bullet.
A sample has a activity of 0.0021 Bq per gram of carbon. Find the age of the sample, assuming that the activity per gram of carbon in a living organism has been constant at a value of 0.23 Bq
A baggage handler throws a 20kg suitcase along the floor of an airplane luggage compartment with a speed of 1.2 m/s. What is the suitcase's coefficient of kinetic friction on the floor
A disk with a 1.0-m radius reaches a maximum angular speed of 18 rad/s before it stops 30 revolutions (220 rad) after attaining the maximum speed
Two thin lenses with a focal length of magnitude 15.0cm , the first diverging and the second converging, are located 11.3cm apart. How far from this first lens is the final image formed
In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, What is the angle of his final position relative to the island
You were driving a car with velocity m/s. You quickly turned and braked, and your velocity became m/s. What was the (vector) impulse applied to the car by the ground
If a person exerts 44 N of force on the back of a seat while stopping in 0.4 seconds, what is the impulse on the seat back
Jane ( 50 kg) and John ( 30 kg ) sit at opposite ends of a 5.0 m long boat (20 kg). Jane is on the left, John is on the right. When they trade sides, how far and in what direction does the boat move relative to where Jane was origin
A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. A single unbalanced force acts on the hovercraft, How much work is done on the hovercraft by the force during this time
A fireworks rocket is launched vertically upward at 40 m/s. At the peak of its trajectory, When does the second fragment reach the ground
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