What magnetic field strength is required
A proton moves with a speed of 4700000 m/s horizontally, at a right angle to a magnetic field. What magnetic field strength is required to just balance the weight of the proton and keep it moving horizontally? Answer in units of T.
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A sled is pulled with a horizontal force of 17 N along a level trail, and the acceleration is found to be 0.36 m/s2. An extra mass m = 4.4 kg is placed on the sled. If the same force is just barely able to keep the sled moving, what is the coeffi
A 800-turn solenoid, 21 cm long, has a diameter of 2.1 cm. A 10-turn coil is wound tightly around the center of the solenoid.If the current in the solenoid increases uniformly from 0 to 3.7 A in 0.22 s, what will be the induced emf in the short co
A motorist drives south at 30.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.80 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.80 min trip. how do you find the total vector, average speed and average ve
When the wood cube attains hydrostatic equilibrium again, what will be the distance from the top of the liquid to the bottom face of the cube?
Alex pulls with force of magnitude 206 N, and Charles pulls with force of magnitude 163 N. Note that the direction of Charles' force is not given. What is the magnitude of Betty's force?
A plane leaves the airport in Galisto and flies 175 km at 68.0^circ east of north and then changes direction to fly 260 km at 48.0^circ south of east, after which it makes an immediate emergency landing in a pasture.
A circular loop in the plane of the screen lies in a 0.87 T magnetic field pointing into the screen. If the loop's diameter changes from 19.5 cm to 6.0 cm in 0.50 s, determine the following.
What is the magnitude of the electric field at P1? Hint: The direction of the dipole vector ˆp is from the negative charge to the positive charge. Answer in units of N/C.
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