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An electric field of 1.50 kV/m and perpendicular magneticfield of 0.400 T act on a moving electron to produce no net force. What is the electron's speed?
q1. a circular loop of radius 11 cm lies in the plane of the paper. a constant magnetic field of 250 mt is directed
A science student is riding on a flatcar of a train travellingalong a straight horizontal track at a constant speed of 10.0 m/s.The student throws a ball along a bath that she judges to make aninitial angle of 60.0 degrees with the horizontal and ..
A 0.15 kg ball hits a wall with a velocity of (4.00 m/s) + (6.50 m/s) + (5.00 m/s) . It rebounds from the wall with a velocity of (2.00 m/s) + (3.50 m/s) + (-3.20 m/s). What is the change in the ball's momentum
For a science fair competition, a group of high school students build a kicker-machine that can launch a golf ball from the origin with a velocity of 11.3 m/s, How high will be the highest point of trajectory
A man throws a ball such that it strikes a wall of a building at the max height of its trajectory. If it takes 1.15 seconds to travel from man to the building, determine the velocity at which it was thrown, the angle, and the height of the building.
A fisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. What is the amplitude of each wave
A major-league catcher gloves a 85 mi/h pitch and brings it to rest in 0.17m. If the force exerted by the catcher is 803 N, what is the mass of the ball.
Three equal point charges, each with charge 1.50 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.6m. What is the electric potential energy U of the system.
A cylinder is fitted with a piston that is connected to the bottom by a spring. Find the work done by pressure in compressing the spring
An anthropologist focuses her camera on a distant mountainpeak when she sees a very interesting looking monkey just 5.2 m away. Quickly sheadjusts the focus and takes the picture. If her lens has a focal length of 41mm,
A 36.1 ?F capacitor is connected to a 58.4 ? resistor and a generator whose RMS output is 36.6 V at 58.0 Hz. Calculate the RMS current in the circuit
Light in air is incident perpendicularly on a sheet of crown glass having an index of refraction of 1.522. Determine both the reflectance and transmittance
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