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A bead of mass m, acted upon by a uniform graviational force,can slide freely on a frictionless circular hoop of radius R. Thehoop is oriented vertically and is rotating about a vertical axiswith angular velocity w. Assume the hoop is massless. Determine the Langrangian for the bead.
X-rays having an energy of 350 keV undergo Compton scattering from a target. The scattered rays are detected at 37.0° relative to the incident rays. Find the energy of the recoiling electron
The radii of the wheels of a compound wheel and axle are 2cm, 5cm,and 10cm.It is found to have an efficiency of 90%. If a 500 kg load is lifted by the machine, how much effort in newtons is applied? what frictional force acts? Show a diagram of the s..
The length of nylon rope from which a mountain climber is suspended has a force constant of 1.10 ? 104 N/m. What is the frequency at which he bounces
In a hypothetical nuclear fusion reactor, the fuel is deuterium gas at a temperature of about 9.1 x 108 K. If this gas could be used to operate a Carnot engine with TL = 248°C, what would be the engine's efficiency?
An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1350 m/s, How far does the particle travel before hitting the tube wall
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.54 g and a charge of magnitude q. Find the magnitude of the charge on the balls
A 0.20 kg mass resting on a frictionless surface is attached to a solid wall by means of a spring with and elastic force constant k of 5.0 N/m. calculate the maximum velocity experienced by the mass
A skateboarder shoots off a ramp with a velocity of 5.7 m/s, directed at an angle of 52° above the horizontal. The end of the ramp is 1.4 m above the ground. how far is this point horizontally from the end of the ramp
A listener increases his distance from a sound source by a factor of 3.03. what is the change in the sound intensity level in dB
Starting from rest, a 4.50-kg block slides 3.00 m down a rough 30.0° incline. Determine the work done by the friction force between block and incline
A 55 g piece of aluminum at 21 °C is cooled to -196 °C by placing it in a large container of liquid nitrogen at that temperature. How much nitrogen is vaporized
An unwary football player collides with a padded goalpost while running at a velocity of 8.50 m/s and comes to a full stop after compressing the padding and his body 0.150 m. How long does the collision last
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