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A bar of length 1.5 meters moves to the left at 4.6 m/s along a set of conducting rails. The rails and bar have a net resistance of 10 Ohms. A magnetic field of 2 Tesla points out of the page.
a.) In which direction does the current flow in this circuit?
b.) Determine the induced electromotive force.
c.) Find the current.
d.) How hard do you have to push to maintain the speed of 4.6m/s?
A car goes round a flat curve at a speed of 32 ms-1. If the radius of the curve is 200 m, find the minimum value for the coefficient of friction so that the car can go around the curve without skidding.
The average power used by a stereo speaker is 54 W. find the peak value of the ac voltage applied to the speaker
two charges are places on the x axis, +5.0x10^-6C at the origin and -10.0x10^-6C at x=10cm. At what point(s) on the x axis is the electric field zero
Start from the expression of the electric filed outside an infinite sheet of uniform surface charge density, E=sigma/2epsilon, derive the electric field
David is driving a steady 24 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant while David passes. How far does Tina drive before passing David.
Changes in wind and tide made average speed on return trip 3 mph slower than the speed on the way out. If the total time of the trip took 9 hours find speed of both the going and the return trip.
A proton, initially traveling in the +x-direction with a speed of 5.00×105m/s, enters a uniform electric field directed vertically upward, What is the strength of the electric field
Two metal spheres, each of mass 14 g and initially at rest, are dropped from a height of 6 m in an evacuated chamber. Find the difference in final speeds of the two spheres
A 2.83-kg book slides 1.17 m along a level surface. The coefficient of kinetic friction between book and surface is0.41. Find the work done by friction
A tungsten filament used in a flashlight bulb operates at 0.20 A and 3.0 V. find the temperature of the filament when the flashlight is on
The current amplitude in an inductor in a radio receiver is to be 250 microA when the voltage amplitude is 3.6V at a frequency of 1.60Hz. What inductive reactance and inductance is needed
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall
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