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A proton moves through a uniform magnetic field given by B= (10i ? 18.0j + 30k ) mT. At time t1, the proton has a velocity given by = v xi + vyj + (2000 m/s)k and the magnetic force on the proton is FB = (3.77 e-17 N)i + (2.10 e17 N)j . (a) At that instant, what is vx? (b) What is vy?
Attempting to stop on a slippery road, a car moving at 80 skids across road at a 30 angle to its initial motion, coming to a stop in 3.8.
A woman with mass 50 kg stands at the rim of a large disk rotating at 0.5 rev/s about its center axis. What is the difference in energy of the system
A cigarette lighter in a car is a resistor that, when activated, is connected across the 12-V battery. Suppose a lighter dissipates 32 W of power. find the resistance of the lighter
A hammer is hung from a small hole in its handle, swung slowly to an angle of theta max = 0.1 radians and then released. Find the net torque on the hammer
A body is traveling at 16m/s and comes to rest after undergoing a uniform negative acceleration for 40m. What is the acceleration of this body
A 4.25g bullet traveling horizontally with a velocity of magnitude 375m/s is fired into a wooden block with mass 1.10kg , How fast is the block moving just after the bullet emerges from it
Two boxes, m1 = 1.0 kg with a coefficient of kinetic friction of 0.10, and m2 = 2.0kg with a coefficient of 0.20, are placed on a plane inclined at 0 = 30o.
Meanwhile, Isaac is piloting his ship in the westward direction, also at 0.89, toward Albert's ship. With what speed does Isaac see Albert's light beam pass his ship.
A 3.25 g bullet picks up an electric charge of 1.55 µC as it travels down the barrel of a rifle. find the magnitude of the magnetic force on the bullet
A singly charged ion (charge q = +1.60e-19 C) completes four revolutions in a uniform magnetic field, Calculate the mass of the ion in kilograms
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 60.7 degrees. Find the the angle the resultant force makes with dog A's rope
Two boxes of masses, m and 2m, are in contact with each other on a frictionless surface. What is the acceleration of the more massive box
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