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A tennis player swings her 1000 g racket with a speed of 8.00m/s . She hits a 60 g tennis ball that was approaching her at a speed of 13.0m/s. The ball rebounds at 39.0m/s.
How fast is her racket moving immediately after the impact? You can ignore the interaction of the racket with her hand for the brief duration of the collision?
If the tennis ball and racket are in contact for 14.0ms , what is the average force that the racket exerts on the ball?
A hollow sphere of radius R has a potential on its surface specified by the function V(R,θ) = Vocos2θ. Find the electric potential inside and outside the sphere
A 230-µF capacitor and a 40m H inductor are in series with a 345 O resistor. What is the impedance at the resonant frequency
Calculate the time it will take this block when released from rest to travel a distance of 0.3 m along the ramp
The tractor beam exerts a constant force of 4.0 104 N on the shuttlecraft. Both spacecraft are initially at rest. Explain how far does the starship move as it pulls the shuttlecraft aboard?
A solid disk of radius 1.60 m and mass 2.3 kg rolls without slipping to the bottom of an inclined plane. what is the height of the inclined plane
An airplane is flying with a velocity of 86.0 at an angle of 23.0 above the horizontal. When the plane is a distance 114 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
The pressure in a traveling sound wave is given by the equation %u0394p=(1.50 Pa)sin((%u03C0/2.)*(0.90 m-1x -297.0 s-1 * t)). Find the pressure amplitude
A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. He reports hearing two successive resonances at 50.5 Hz and 59.5 Hz. How deep is the well
A box of mass 38.5 kg is sitting on a horizontal table top with a coefficient of kinetic friction between the box and the surface of 0.49. Find the magnitude of the acceleration of the box on the table
A crane drops a 1.0 kg steel ball onto a steel plate. The balls speed just before impact is 2.0m/s. what is the bounce back speed right after the impact
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate, What is the coefficient of kinetic friction between the ramp and the crate
How many 104 W lightbulbs can you use in a 102 V circuit without tripping a 17 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each lightbulb is 102 V.)
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