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A tennis player wishes to return the ball so it just passes over the top of the net at a point where the net is 1.0 m high. He can return the ball at a speed of 14 ms-1 from a position that is 0.4 m vertically below the top of the net and is 8.0 m from the point where he intends the ball to cross the net.
a. At what angles to the horizontal could the player strike the ball in order to do this?
how much work is required to accelerate a proton from rest up to a speed of 0.957c, what would be the momentum of this proton
There is a beam that weighs 1500 kilograms and is twenty meters in length. It has a 15000 kilogram mass on the right side, five meters from the center of gravity. obtain the net tension of each brace that is holding up the beam on both sides.
An ideal gas has a temperature of 850 K. calculate the total kinetic energy of 1 mol of this gas
High speed stroboscopic photographs show that the head of a 198 g golf club is traveling at 56.6 m/s just before it strikes a 45.0 g golf ball at rest on a tee. Find the speed of the golf ball just after impact
You select a rental package that includes a car with an average consumption of 6.00 liters of fuel per 100 km. how much (in US dollars) will you spend in fuel on your trip
A large space station is constructed in the shape of a hollow cylinder of radius 500m. What must be the period of the rotation to accomplish this
An air parcel moves northwards and becomes entrained in a strong westerly flow, circling the entire globe in the space of a few weeks. State the name given to this high-level flow and define briefly how its structure is related to lateral and vert..
The infamous chicken is dashing toward home plate with a speed of 5.6m/s when he decides to hit the dirt. The chicken slides for 1.0s , just reaching the plate as he stops (safe, of course).
A 3 dimensional infinite square well potential of length 1.0e-6 is occupied by 12 electrons. The system is at temperature 0 K and interaction between electrons can be neglected. Half are spin up and half are spin down. What is the higheat occupied en..
Two photons have different frequencies f1 and f2 . If the ratio of their momenta is 22.5, what is the ratio of their frequencies
A tennis player receives a shot with the ball (0.0600 kilogram) traveling horizontally at 40.0 m/s in the opposite direction. Determine the impulse delivered to the ball by racket
a 55.0-kg box rests on a horizontal surface. the coefficient of static friction between the box and the surface is
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