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The Electron in the B-field An electron moves in a 0.5nT B-field. If the radius of the circular orbit is 1cm, what is its period. angular velocity, linear velocity, linear momentum, angular momentum, and kinetic energy?
A force FT is applied to a cord wrapped around a pulley with moment of inertia I = 0.295 kg · m2 and radius R0 = 33.0 cm, what is the linear speed of a point on its rim 7.0 s later
A girl is sledding down a slope that is inclined at 30º with respect to the horizontal, The combined mass of the girl and the sled is 76.5 kg, How much time is required for the sled to travel down a 149-m slope, starting from rest
A bartender slides a beer mug at 1.30 m/s towards a customer at the end of a frictionless bar that is 2.0m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar.
Two small metallic spheres, each of mass m = 0.45 g, are suspended as pendulums by light strings from a common point. what is the magnitude of the charge on each sphere
A meter stick of mass 0.25 kg is mounted on a perpendicular axis at the 20 cm mark. Determine the angular acceleration of the ruler
A rock is suspended by a light string. When the rock is in air, the tension in the string is 40.6 N. When the rock is totally immersed in water, What is the density of the unknown liquid
Calculate the energy in of a photon of radiation. A projectile is fired straight upward at 141 m/s. How fast is it moving at the the top of its trajectory? assume it is launched upward at 45 degrees about the horizontal plane. How fast is it moving..
A beam of particles is directed at a 0.014-kg tumor. There are 1.9 Ã- 1010 particles per second reaching the tumor, Find the biologically equivalent dose given to the tumor in 22 s
An initially uncharged air-filled capacitor is connected to a 4.01-V charging source, Find the capacitor's potential difference and charge after the insertion
A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 20° above the horizontal. What is the magnitude of the normal force
A gymnast does a one-arm handstand. The humerus, which is the upper arm bone between the elbow and the shoulder joint, What is the compressional strain of the humerus
You have a 2.5m long copper wire. You want to make an N-turn current loop that generates a 1.2mT magnetic field at the center when the current is 1.9A, What will be the diameter of your coil
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