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A proton moving with a velocity of 4.0×104 m/s enters a magnetic field of 0.20 T. If the angle between the velocity of the proton and the direction of the magnetic field is 60°, what is the magnitude of the force on the proton?
A boxer receives a horizontal blow to the head that topples him over. The force, of magnitude 1.06 x 10^3 N, is applied for 1.1 x 10^-2 s at a point 1.82 m above the floor. Find the boxer's final angular velocity
A magnetic field has a magnitude of 0.0011 T, and an electric field has a magnitude of 4.4 × 103 N/C. obtain the magnitude of the net force that acts on the charge
A capacitor has plates that are located .08 meters from each other with air as the material between the plates, Find the force exerted on the plates of the capacitor
the right triangle with vertex P at the origin, base b, Determine the potential at the vertex P
Two loudspeakers are placed at either end of a gymnasium, both pointing towards each other. The sound emitted by the speakers is in phase and are of frequency of 256 Hz.
A 61-kg bungee jumper has fallen farenough that her bungee cord is beginning to stretch and resist herdownward motion. Find the force (magnitude and direction) exertedon her by the bungee cord at an instant when her downward acceleration has a mag..
Suppose the pilot, starting again from rest, opens the throttle partway. Find the net force acting on the boat
for safety reasons the speed of a child at the bottom of playground slide cannot exceed 6.0 m/s. What is the maximum height of the slide
A microphone is undergoing simple harmonic motion (SHM) above a 440-Hz sound source, determine the amplitude of the simple harmonic motion
An electron in a television tube travels the 22 cm distance from the grid to the screen at an average speed of 7.00 107m/s. How long does the trip take
A 23-g bullet traveling 270m/s penetrates a 2.2kgblock of wood and emerges cleanly at 215m/s. how fast does it move after the bullet emerges
The large blade of a helicopter is rotating in a horizontalcircle. The length of the blade is 7.64 m, measured from its tip tothe center of the circle. Find the ratio of the centripetalacceleration at the end of the blade to that which exists at apoi..
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