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The upper end of the string wrapped around the cylinder below is held by a hand that is accelerated upward so that the center of mass of the cylinder does not move as the cylinder spins up. (c) Find the acceleration of the hand.
The total energy of a particle is 3.97 times its rest energy. The mass of the particle is 2.8 × 10^-27 kg. With what speed is the particle moving and what is the particle's momentum
A heat engine operates between a hot resrvoir at 1500k and a cold reservoir at 500k. Determine the Carnot efficiency of this engine
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. What is the total time the hare is moving
A home run is hit in such a way that the baseball just clears a wall 21 m high, located 130 m from home plate. Find the time it takes the ball to reach the wall
A comet with a mass of 7.75 1011 kg strikes Earth at a speed of 26 km/s. Find the kinetic energy of the comet in joules
A rectangular fish tank measures 30 cm by 65 cm by 40 cm high. What is the total force of the water on the bottom
The wheel of a car has a radius of 0.365 m. The engine of the car applies a torque of 284 N · m to this wheel, which does not slip against the road surface. Since the wheel does not slip, the road should be applying a force of static friction to t..
The plates of a spherical capacitor have radii 36.0 mm and 44.0 mm. What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance
A 56.6-g ice cube is initially at 0.0°C, Find the change in entropy of the cube after it melts completely at 0.0°C
A 220 g top spinning at 14 rev/s makes an angle of 30° to the vertical and precesses at a rate of 1 rev per 8.0 s. what is the moment of inertia of the top
Astronaut Ann wishes to travel from one side of her spaceship to the other side so she pushes herself away from a wall, What is Ann's speed relative to Bob as she drifts across the spacehip
An auto race takes place on a circular track. A car completes one lap in a time of 19.5 s, Find the average angular speed and the radius of the track
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