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Two identical +45.3 nC point charges A and B, with masses of 3.0*10^-9 kg each, are fixed in place with a distance of 2.54 cm between them. The force holding charge B at rest is suddenly removed, so that it accelerates radially away from charge A, which remains fixed. Calculate the speed of charge B when it has reached a distance of 3.68 cm away from charge A.
One sphere is negatively charged, with net charge -2.25 mu C, and other sphere is positively charged, with net charge 4.00 mu C. The charge is uniformly distributed within the volume of each sphere.
A blue car with mass mc = 428 kg is moving east with a speed of vc = 20 m/s and collides with a purple truck with mass mt = 1284 kg, What is the magnitude of the initial momentum of the car
An ideal spring of negligible mass is 11.00cm long when nothing is attached to it, If you wanted to store 10.0 J of potential energy in this spring, what would be its total length? Assume that it continues to obey Hooke's law
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
Two charges, q1 and q2, are separated by a distance, r, and exert a force, F, on each other. What will the new force be if:
What is the minimum coefficient of friction between tires and road that will allow cars to take turn without sliding off the road.
An emf is induced in a conducting loop of wire 1.16 m long as its shape is changed from square to circular.
A rock is thrown vertically upward with a speed of 15.0m/s from the roof of a building that is 40.0m above the ground, What is the speed of the rock just before it strikes the ground
Write at least one paragraph in which you define focal length, object and image distance and magnification. Explain the difference between real and virtual images
A vertical scale on a spring balance reads from 0 to 195 rm{N}. The scale has the length of 11.5 rm{cm} from the 0 to 195 rm{N} reading. A fish hanging from the bottom of spring oscillates vertically at a frequency of 2.30 rm{Hz}. What is the m of..
A 9.05 kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 77.5 kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.
An engine has an efficiency e1. The engine takes input heat QH from a hot reservoir and delivers work W1. The heat rejected by this engine is used as input heat for a second engine.
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