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Question: (A) What value of magnetic field would make beam of electrons , travelling to the right at a speed of 4.7× 10^7 m/s , go undetected through a region where there is a uniform electric field of 8500V/m pointing vertically up?
(B) What is the direction of magnetic field if it is known to be perpendicular to the electric field ?
(C) What is the frequency of the circular orbit of the electric field is turned off?
an engine has a hot reservoir temperature of 935 k and a cold reservoir temperature of 616 k. the engine operates at
Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.58 m, as depicted in the figure. Two of the spiders (S1 and S3) have +4.6 µC charge, while the other (S2) has -4.6 µC charge.
A 140 g, 90.0 mph fastball comes across the plate very nearly horizontally and is batted at 90.0 mph at a 30.0 degree angle (above the horizontal) toward center field. Determine the impulse (in N's) acting on the ball
A novice skier, starting from rest, slides down a frictionless 13degree incline whos vertical height is 125m. how fast is she going when she reaches the bottom
A pendulum of length 9.00 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 3m. (That is, 3.0 m is no longer free to swing.) How long does this pendulum take for one o..
Two submarines are moving towards each other in a portion of the Atlantic Ocean where the water is calm. Sub A is moving at 14.0 m/s, What frequency does sub B detect
to measure the speed of light fizeau used a rotating disk with equally spaced holes through which light could pass.
A 4 gram bullet is moving horizontally with a velocity of +355 m/s, where the + sign indicates that is moving to the right. Find the ration of the total kinetic energy after the collision to the total kinetic energy before the collision
How many newtons of force would be required to stretch a spring 12 cm if, when attached to a 500 g mass, its frequency of vibration is 3.45 Hz?
If the upstream Froude number and depth are 4.0 and 0.2 ft, respectively, determine the slopes upstream, S01, and downstream, S02, of the jump to maintain uniform flows in those regions. The jump can be treated as a jump on a horizontal surface.
determine the units of viscosity ? in the following equationnbsp? ?dudy where ? is a shear stress u a velocity and y
a 55 kg swimmer is standing on a stationary 175 kg floating raft. the swimmer then runs off the raft horizontally with a velocity of + 3.7 m/s realtive to the shore. Find the recoil velocity that the raft would have
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