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A straight wire is aligned north-south in a region where Earth's magnetic field Barrowbold is directed 52.0° above the horizontal, with the horizontal component directed due north. The wire carries a current of 6.30 A toward the south. The magnetic force on the wire per unit length of wire has magnitude 3.00 x 10-3 N/m. (b) What is the magnitude of B?
A sinusoidal wave traveling in the positive x-direction has a wavelength of 11 cm, a frequency of 13 Hz, and an amplitude of 19 cm. The part of the wave that is at the origin at t = 0 has a vertical displacement of 6 cm.
A rescue helicopter lifts a 85.3-kg person straight up by means of a cable. calculate how much work done by the persons weight
a train is traveling at 30.0 relative to the ground in still air. the frequency of the note emitted by the train
A daring 51kg swimmer dives off a cliff with a running horizontal leap, What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom
A spring with a spring constant of 100N/s is compressed adistance of 0.1m horizontally. What is the maximum speed attained by the mass
One end of a brass bar is maintained at 300°C, while the other end is kept at a constant but lower temperature. What is the temperature of the bar at a point 0.15 m from the hot end
A camera has a lens with a focal length of 25.6 cm. how far from the film should the lens be placed
An object is placed 18.0 cm in front of a converging lens with a focal length of 6.00 cm. determine the image location and its characteristics
A wodden raft has a density of 0,5*10^3kg/m^3 and dimension of 3,05m*6,1m*0,305m. How deep does it sink into the water when unloaded
A 83.55kg woman walked a 5k race in 53.33 minutes. How much power did it take to complete the race
A 11.1-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 60.3-N horizontal force. find the rope\'s angle from the vertical
For nitrogen gas at 35 C calculate the vrms, the vp and the translational kinetic energy
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