Determining how fast the ball is moving
A man on the top of a building throws a ball at 18m/s at a 35 degree angle off a 165m building. Determine how fast the ball is moving if it strikes the ground.
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The two converging lenses, each having a focal length of 14.9 cm, are positioned 39.4 cm apart and an object is positioned 30.0 cm in front of the first lens. Where is the final image made? Determine the magnification of the system?
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