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Question: Using the equation for the final velocity in terms of masses and initial velocity of the gliders for a perfectly inelastic collision, work out the final kinetic energy. Compare this to the initial kinetic energy and show that kinetic energy is not conserved in the collision. Do this only with variables; none of your data should be included.
Suppose that you loft the ball with an initial speed of v = 16.2 m/s, at an angle of ? = 49.4° above the horizontal. With what minimum average speed must he move
A sphere that is a perfect blackbody radiator has a radius of 0.130 m, Calculate the net rate at which the sphere radiates energy
Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end of a rope is attached to the bus, how much work does the tension force do on Magnus
A 400 m long wire carries a current of 5A towards the north. the earths magnetic field of 75mT points north but 61 degrees below the horizontal. Calculate the magnitude of the magnetic force on the wire.
a boat moves through the water of a river at 8 ms relative to the water regardless of the boats direction. if the water
Electron A has a De Broglie wavelength (lambda). If electron B has twice the kinetic energy of electron A, the de Broglie wavelength of electron B is: A) 2lambda B) lamda * square root 2 C) lambda/ square root 2 D) lambda/ 2
A 45-m long wire is coiled so that it makes a coil containing 100 circular loops, one on top of the other. what is the magnetic dipole moment of the coil
You pull with a force of 295 N on a rope that is attached to the block of mass 20 kg, and the block slides across the floor at a constant speed of 1.2 m/s. The rope makes an angle of 35 degrees with the horizontal.
1 what is the spring stiffness of the entire wire considered as a single macroscopic very stiff spring?2 how many
Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. Typically, this disc has a radius of about 2.7 x 10-2 m and a thickness of about 1.1 x 10-3 m. How far does the top surface move relative to the bottom surface
A 270-m-wide river flows due east at a uniform speed of 3.5 m/s. A boat with a speed of 7.6 m/s relative to the water leaves the south bank pointed in a direction 25o west of north. What is the (a) magnitude and (b) direction of the boat's velocit..
A model rocket flies upward at constant acceleration, and undergoes a displacement of 15.0 m during its first 0.25s of travel. What was its speed at the end of the fist
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