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In a typical television or in an older computer picture tube (CRT),the electrons that strike the screen to form an image areaccelerated between two charged plates that have a potentialdifference of 2.5×104 V. The plates are separated by adistance of 1.3 cm. Assuming that there is a uniform electricfield between the plates, calculate the strength of the field.
Find the resultant magnetic force exerted by the long wire on the square current loop in the figure below if I1 = 8.72 A and I2 = 4.12 A
As part of a safety investigation, two 1700kg cars travelling at 25 m/s are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.3 seconds to stop, and (b) car that hits a concrete ..
A 0.565-kg ball has an elastic, head-on collision with a second ball that is initially at rest. What is the mass of the second ball
A coin rests 14.0 cm from the center of a turntable. The coefficient of static friction between the coin and turntable surface is 0.440. what is the angular velocity of the turntable
A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of vi = 2.00 m/s. find the distance the sled moves before it stops
A golf ball is released from rest from a height of 0.759 m above the ground and has a collision with the ground, What is the maximum height reached by this ball as it bounces back up after this collision
An electron traveling horizontally with velocity 1.55 x10^{5} m/s enters a region where a uniform magnetic field is directed into the plane of the paper, find the magnitude of the magnetic force exerted on the particle
a long wire carries current of 30.0 A parallel to the positive x-axis, except for three of the four segments that follow the edges of a cube of side length 0.30m, What is the magnitude of the net magnetic force on the wire
Two people are carrying a uniform wooden board that is 3.40m long and weighs 145N. What force does the other person lift
Two long, parallel wires are separated by a distance of 3.40. The force per unit length that each wire exerts on the other is 3.20×10-5, and the wires repel each other. The current in one wire is 0.6690.
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 19.0 m/s at an angle 48.0 degrees; What is the vertical component of the ball's velocity right before Sarah catche..
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 39 at 20°C. what is the temperature coefficient of resistivity
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