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In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 2.47 m/s. However, this speed is inadequate to compensate for the kinetic friction between the puck and the ice. As a result, the puck travels only one-half the distance between the players before sliding to a halt. What minimum initial speed should the puck have been given so that it reached the teammate, assuming that the same force of kinetic friction acted on the puck everywhere between the two players?
How many revolutions does the ball make during its fall. Now assume that the ramp is frictionless, so that the ball slides instead of rolling. Through what horizontal distance d does the ball move before landing in this case.
The centers of a 11.0kg lead ball and a 150g lead ball are separated by 7.00cm. What gravitational force does each exert on the other
A man strikes a long aluminum rod at one end. Another man, at the other end with his ear close to the rod, How long is the rod
A small fly of mass 0.21g is caught in a spider's web. What is the value of the effective spring stiffness constant k for the web
While taking a walk around your neighborhood, you see a flash of lightning hit the Earth in the distance. How far away did the lightning strike the ground
On average, each American produces 20,000 kg of CO2 per year, mostly through the consumption of fossil fuel such as oil, coal, and natural gas. what would be the length of each side of the cube
A man strikes a nail with a 1kg hammer. The speed of the hammer just before it strikes the nail is 5m/s, What is the force exerted on the nail by the hammer
A velodrome track is banked so that a bicycle traveling at 78.2 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 76.0 m
The diagram of a speaker has a mass of 50.0g and responds to a signal of 2.0 khz by moving back and forth a with an amplitude of 1.8 X10^-4 m at that frequency. what is the force acting on the speaker
A 6.50 g bullet moving at 726 m/s strikes a 590 g wooden block at rest on a frictionless surface. What is the speed of the bullet-block center of mass
A bat flies toward a wall, emitting a constant sound of frequency 2.00 rm kHz. This bat hears its own sound plus the sound reflected by the wall.
What is the charge before the Teflon is removed? B.)What is the potential difference before the Teflon is removed, What is the charge after the Teflon is removed
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