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A proton travels with a speed of4.90106m/s at an angle of 65°with the direction of a magnetic field of magnitude 0.240T in the positivex-direction.
(a) What is the magnitude of the magnetic force on the proton?
(b) What is the proton's acceleration?
To stop a car, first you require a certain reaction time to begin braking; then the car slows under the constant braking deceleration. Suppose that the total distance moved by your car during these two phases is 50.6 m when its initial speed is 79..
A 52.5 g Super Ball travelling at 30 m/s bounces off a brick wall and rebounds at 16.0 m/s. A high-speed camera records this event. If the ball is in contact with wall for 3.25 ms, what is the magnitude of the average acceleration of ball during t..
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 0.72 eV. What is the width of the square well
The first car has twice the mass of a second car, but only half as much kinetic energy. When both cars increase their speed by 10m/s, What were the original speeds of the two cars
Suppose a bullet of mass m = 6.77g is fired into a ballistic pendulum whose bob has a mass of M = 0.693kg. What was the speed of the bullet-bob combination immediately after the collision takes place
A dead tree is initially stationary and there is a 30.0-degree angle between the tree and the vertical, How fast is the top of the tree moving (in m/s) just before it hits the ground
The maximum strength of the earth's magnetic field is about 6.9 x 10-5 T near the south magnetic pole. What is the minimum number of turns (area per turn = 0.021 m2) that the coil must have to produce an rms voltage of 170 V
A 4.90 g bullet is fired horizontally at two blocks resting on a smooth tabletop, find the speed of the bullet immediately after it emerges from the first block
A object of mass 3.00 kg is subject to a force Fx that varies with position as in the figure below. Find the work done by the force on the object
As you get ready for your early morning physics class, you comb your hair in front of a planar mirror. How far away from you is your image
A window air-conditioner unit absorbs 9.75×10^4J of heat per minute from the room being cooled, What is the power consumption of the unit in watts
A 1.0- kg mass is attached to a string wrapped around a shaft of negligible mass and having a 8.0- cm radius. How far apart are the masses of the dumbbell
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