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A particle with a charge of 5 x 10^-6 C and a mass of 20g movesuniformly with a speed of 7m/s in a circular orbit around astationary particle with a charge of -5 x 10^-6 C. What is the radius of the orbit?
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Question: A student is working in an optics lab and has a light bulb which is 90 cm from a screen. She needs to make a real image of the bulb on the screen and she has a positive lens with a focal length of 12.5 cm. Find ...
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