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Two point charges of equal magnitude are 6.1 cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 37 N/C. Find the magnitude of the charges.
A U tube is filled with water, and the two arms are capped. The tube is cylindrical, and the right arm has twice the radius of the left arm. The caps have negligible mass, are watertight, and can freely slide up and down tube.
What is the radius of the pen. How far should it now sail to reach its original destination.
If the mass of a sliding block is tripled at the equal time the net on it is tripled, how does the resulting acceleration compare with original acceleration?
The system is balanced by a support that is 0.300m from the left end of the plank. How far to the right of the support is the plank's center of gravity.
What is the coefficient of kinetic friction between the crate and the floor. what height will the stream of water strike.
A converging lens has a focal length of f = 26 cm. An object is placed 39 cm from the lens. Find out the size of an image in cm if the object has a height of 5 cm. express answer with one decimal place.
A box of mass 32 kg is at rest on a horizontal frictionless surface. A constant horizontal force then acts on the box, and accelerates it to the right. It is observed that it takes the box 6.5 seconds to travel 48 meters. What is the magnitude of for..
When she gets off the ride, she uploads the scale readings to a computer and creates a graph of scale reading versus time. Note that graph has a minimum value of 519 rm N and a maximum value of 666 rm N.
A diving board oscillates with simple harmonic motion of frequency 3.23 cycles per second. What is the maximum amplitude with which the end of the board could vibrate in order that a pebble placed there not lose contact with the board during the o..
A charge +3.9 ?C is placed at the center of the hollow spherical conductor with the inner radius 3.1 cm and outer radius 5.5 cm, What is the total charge on interior and exterior surface
A spring (k =805N/m) is hanging from ceiling of an elevator, and a 5.0-kg object is attached to the lower end. By how much does the spring stretch (relative to its unstrained length) when the elevator is accelerating upward at a = 0.47m/s2.
In each cycle of its operation, a refrigerator removes 8 J of heat from the inside of the refrigerator and releases 22 J of heat into the room. How much work per cycle is necessary to operate this refrigerator.
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