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A puck rests on a horizontal frictionless plane. A string is wound around the puck and pulled on with constant force. What fraction of the disk's total kinetic energy is due to the rotation?
A rock is dropped from a high tower and falls freely under the influence of gravity. Which one of the following statements concerning the rock as it falls is true? Neglect the effects of air resistance.
A softball player swings a bat, accelerating it from rest to 5.0 rev/s in a time of 0.25 seconds. compute the torque the player applies to one end of it
A coin is tossed upward with an initial speed of 7.5 m/s2, What is the total time it is in the air before returning yo it's releasing point
A particle with a charge of ? 3.00?C is placed at the point P described in part A. What is the direction of the force exerted by the particle
The electron in a hydrogen atom is in the first excited state, What is the quantum number n of the state into which the electron moves
A rectangle has an area of 36.38 cm2. When both the length and width of the rectangle are increased by 1.60 cm, Calculate the length of the shorter of the two sides of the initial rectangle
A block with mass of 4.52 kg is attached to a horizontal spring with spring constant k = 3.59 102 N/m, Find the speed of the block at the equilibrium point
Two particles with masses m and 3m are moving toward each other along the x axis with the same initial speeds Vi. What is the angle theta at which the particle 3m is scattered
An object is thrown straight upwards with a speed of 40.8 m/s from the top of a 59.2 m tall building. What is the maximum height (from the ground) that the object reaches
how far will the bullet penetrate the block of wood.
In reaching her destination, a backpacker walks with an average velocity of 1.37 m/s, due west. How far east did she walk
We can approximate an electron moving in a nanowire as a one-dimensional in?nite square-well potential. What are the three lowest energy levels of the electrons
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