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A 0.550 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.41 mm, and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 3.03, what is the initial acceleration of the metal cylinder? Assume the pressure outside of the tube is 1.00 atm.
A 1.8 kg solid disk pulley of radius 0.11 m rotates about an axis through its center. What is its moment of inertia
Assume that there is a very beautiful ornate crown, supposedly made of solid gold, how would you determine its density
A 250 g piece of ice at 0°C is placed in 430 g of water at 22°C. What is the final equilibrium temperature of the system
Sam pushes a 10.0-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 4.0 N starting from rest. What is the speed of the sack after Sam has pushed it a distance of 20 cm
A 2.90 102-N force is pulling an 90.0-kg refrigerator across a horizontal surface. The force acts at an angle of 17.0° above the surface. Find the work done by the pulling force
An asteroid orbits the Sun at a constant distance of 4.080e+11 meters. What is the orbital speed of the asteroid
how come the formula: (change)v / (change)t = (change)x cannot be used for this exercise When a 58-g tennis ball is served, What is the magnitude of the net force acting on the ball
A circular coil 17.0 cm in diameter and containing eleven loops lies flat on the ground. Determine the magnitude of the torque on the coil
A raft is made of 12 logs lashed together. Each is 28 cm in diameter and has a length of 6 m. How many people can the raft hold before they start getting their feet wet
The cable of the 1300 kg elevator cab in the figure snaps when the cab is at rest at the first floor, Find the speed of the cab just before it hits the spring
A light wave has a 670{\rm nm} wavelength in air. Its wavelength in a transparent solid is 420{\rm nm}. What is the light's frequency in the solid
A seed shoots out from the pod with the speed of 2.8 m/s but with a direction of motion 30° below the horizontal. What horizontal distance does it cover during its flight
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