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a football punter accelerates a football from rest to a speed of 10 m/s during the time in which his toe is in contact with the ball (about 0.20s). if the football has a mass of 0.50kg, what average force does the punter exert on the ball?
In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in snow, find the magnitude of the impulse on him from the snow
A 70 ball of clay traveling at speed hits and sticks to a 1.2 kg block sitting at rest on a frictionless surface. What is the speed of the block after the collision
The battery charger for an MP3 player contains a step down transformer with a turns ratio of 1:32, What voltage does the secondary coil of the transformer provide
A 3.08 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 2.13 m in 1.60 s. Find the magnitude of the frictional force acting on the block
q1. a cylinderical water tank of radius 10ft and height 30ft is half filled with water. how much work is essential to
A dolphin in an aquatic show jumps straight up out of the water at a velocity of 14.5 m/s. How high does his body rise above the water in meters
A 50.0 kg skier is at the top of a slope. At the initial point at the top is 25.0 m vertically above point at the bottom. find the change in Potential energy of the skier-Earth system as the skier goes from top to bottom
A 7.00-kg crate slides 3.00 m down a ramp inclined at 55.0º below the horizontal. What is the net work done on the crate
A projectile is fired straight upward at 141 m/a. how fast is it moving at the instant it reaches the top of its trajectory? Assume in its place that it was fired upward at 45. What would be its speed at the top of its trajectory.
A 1.50-m-diameter MRI solenoid with a length of 2.20m has a magnetic field of 1.60T along its axis. find the emf in one turn of the solenoid's windings
A car is traveling at a speed of 38.0 m/s on an interstate highway where the speed limit is 75.0 mi/hr. Is the driver exceeding the speed limit
what is the dimension of gravitational force and what is the dimension of acceleration
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