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A long hollow cylinder has an inside radius a, an outside radius band is uniformly charged with a uniform charge density ρ. What is the electric field as a function of radius r? Includeanswers for r < a, a<r<b, and r>b.
Write down the mathematical relationship between velocity (v) and time (t) for a coin tossed up into the air after it leaves the thrower's hand at t=0 with a velocity of +15.0 m/s. Assume that the positive direction is upward and the acceleration of ..
Consider a bright star in our night sky. Assume its distance from Earth is 28.1 light-years (ly) and its power output is 4.00 1028 W, about 100 times that of the Sun. Find the intensity of the starlight at the Earth
A hot air balloon is rising straight up with a speed of 6.0 m/s. A ballast bag is released from rest relative to the balloon when it is 9.54 m above the ground. How much time elapses before the ballast bag hits ground.
A point mass of 1kg collides elastically with a stationary point mass of 5 kg. calculate total momentum of system and kinetic energy of centre of mass
A car with good tires on a dry road can decelerate at about 5.0 m/s2 when braking. Suppose a car is initially traveling at 55 mi/h. (a.) How much time does it take the car to stop.
Compute the y-component of acceleration
A bungee jumper undergoes simple harmonic motion with amplitude 7.9m and frequency 0.110Hz. Determine the bungee jumper's velocity
A 50.0-kg child stands at the rim of a merry-go-round of radius 1.70 m, rotating with an angular speed of 2.95 rad/s. What minimum coefficient of static friction is required
During normal operation, a computer's hard disk spins at 7200 rpm. what is the average angular acceleration of the hard disk
A flywheel has a constant angular deceleration of -2.36 rad/s2. Find the time required for the flywheel to come to rest
A 1.7 kg block and a 2.3 kg block are attached to opposite ends of a light rope. Find the acceleration of the lighter block
A 12.1-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10.6 m/s, find the rotational kinetic energy about its center of gravity
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