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An electron (charge q = -1.6x10-19 C and mass m = 9.1x10-31) moving at speed v enters a region where a uniform magnetic field B = 1.9 × 10-4 T bends the path of the electron into a semicircle with radius of r = 3.5 cm as shown.(a) What is the speed of the electron as it enters the region of non-zero magnetic field?(b) What is the speed of the electron as it leaves the region of non-zero magnetic field?(c) How much work was done on the electron by the magnetic field in this region?
A pendulum consisting of a small sphere with mass 1.135 kg suspended by a string of length 72.23 cm is hanging from the ceiling. Its motion is restricted by a peg that is sticking out of the wall 43.03 cm directly below the pivot point. What is the p..
When an RLC series circuit is connected to a 120 V rms, 48 Hz line, the rms current in the circuit is 9.10 A and the current leads the line voltage by 45°. What is the resistance in the circuit
A 20.0 kg floodlight in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable at an angle of 30.0 degrees with the beam helps support the light. Find (A) the vertical component of the force exerte..
A man walking on a tightrope carries a long a pole which has heavy items attached to the two ends. what difference would it make to his balance
A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is ?s = 0.571, what is the sled\'s acceleration
A starcruiser, measured by its passengers to be 80.0m long, whizzes by an Earthling at speed 0.992c. What length does the Earthling measure the ship's length to be
A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0 rad/s2. what is the magnitude of the total acceleration
A straight wire of mass 200 g and length 1.5 m carries a current of 2 A. What is the magnitude of the magnetic field
Parametric study on the effects of activated carbon by calcium chloride activation from bark of calamansi tree on sewage wastewater treatment.
An electron of mass m leaves one end of a TV picturetube with zero initial velocity and travels in a straight line toan accelerating grid, Find the time to reach the grid
A coil of 57 turns of wire has diameter has diameter of 9.5 cm and carries 7.2 Amperes. find How many Gauss is that
A spring with a constant k=42.3 N/m has a 2.10 kg mass attached to it. The mass is free to slide on a frictionless track parallel to the spring. What is the total energy in the system
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