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A charge of +47 uC is located at (0, 2.2 m). A charge of -63 uC islocated at (0, 1.6m). For these questions assume that the electricpotential energies are zero at infinity.A. What is the force (mag and direction) on the -63 uC charge?B. What is the electric potential at the orgin?C. What is the electric field (mag and direction) at the origin?D. How much work was done by the electric field to bring these towcharges to their current locations?E. If the charges are moved farther apart, does their electricpotential energy increase, decrease or remain the same?
Two charged balls are 20.0 cm apart. They are moved, and force on each of them is tripled. How far apart are they now.
A block of mass m is attached to a fixed wall by means of a spring whose force constant is k. The block slides on an inclined plane of angle θ. The kinetic friction coefficient between the block and the inclined surface is μ.
Radio telescopes use radio waves (instead of light) to produce images. what is the best possible angular resolution that can be achieved
An airplane of wing span 40.0 m flying horizontally at a speed of 774 km/h due north in a region where the vertical component of the earth's magnetic field is 4.75 *10^-5 T. Find the emf induced across its wing
A 35.0 kg person crawls across a 15.0 m long horizontal beam that has a mass of 15.0 kg. The beam has a support line that is at an angle of 65 degrees up from the horizontal.
A ceiling fan with 80-diameter blades is turning at 68. Suppose the fan coasts to a stop 27 after being turned off. What is the speed of the tip of the blade 10 after the fan is turned off.
You are in a kayak which can move at a velocity of 4 m/s when in still water. You are attempting to cross a river which is 103 across, How long does it take you to get to the other side
The plates have sides of length L = 0.810 m. One of the plates has charge Q= + 2.62×10-6 C, while the other plate has charge -Q. Calculate the magnitude of the electric field between the plates, not close to the edge
A sailboat is heading directly north at a speed of 18 knots (1 knot = 0.514 m/s). The wind is blowing towards the east with a speed of 10.4 knots. what is the magnitude of the knots
Two identical conducting spheres are separated by a fixed center to center distance of 45 cm and have different charges, Find the inital charge on the spheres
One solenoid is centered inside another. The outer one has a length of 46.0cm and contains 6600 coils, Find the emf induced in the inner solenoid
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.65 s, What is the mass of the grapes
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