Obtain the focal length of the lens
An object is placed at a distance of 1.5 m from a screen and a convex lens is interposed between them. The magnification produced is 4. What is the focal length of the lens?
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A man dives horizontally and to the right off the end of a 220 kg boat. The boat is initially at rest and the man weighs 110 kg. If the man dives so that his relative horizontal velocity with respect to the boat is 7.0 m/s, determine the magnitude
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