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Magnetism and movement A -64.75 nC charge moves at a velocity of 1.5x10^+7 m/s along the -z axis, through a 5.0 mT magnetic held directed along the -y axis. Find the magnetic force on the charge.
A tractor is pulling a sled at a velocity of 6 ft/s. If the rear wheels are 5 ft in diameter and the front wheels are 2 ft in diameter. What is angular velocity of the front wheels
A copper wire wrapped into a coil is hooked to a 3.00V battery and a switch. At t=0 the switch S is closed. At t=20 seconds the current in the circuit is 24mA. After a long time the current in the circuit is 50mA.
A neutron decays into a proton, and an electron. The neutron was initially at rest. What is the direction and speed of the proton
A nonreflecting single layer of a lens coating is to be deposited on a lens of refractive index n=1.78. Find the refractive index of a coating material
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Determine the specific heat of the unknown second sample
Find the angle of the first order maximum. what horizontal distance does it travel before it lands on building.
You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. The ray reflects from the mirror and strikes the wall. Find the angle of incidence of the laser ray on the mirror
Compressed air can be pumped underground into huge caverns as a form of energy storage. how many homes could this internal energy serve for one day
A box is sliding with a speed of 4.50 m/s on a horizontal surface when, at point P, it encounters a rough section. What is the coefficient of friction at the stopping point
You are walking around a large open field. The only objects nearby are two identical speakers set some distance apart, which are both producing sound, in unison, with a wavelength of 4 m.
The 150-lb man lies against lies against the cushion for which the coefficient of static friction is 0.5. Determine the resultant normal and frictional forces the cushion exerts on him if, due to rotation about the z axis, he has a constant speed v =..
A fan on a car engine is running at an operating speed of 1500RPM when it experiences an angular deceleration of 42.5 rad/s2 for30.0 revolutions. (a) determine the final angular speed of the fanin rpm (b) how long does it take to reach this speed?
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