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A coin placed on a turntable rotating at 37.9 rev/min will stay there if its center is placed no further than 8.5 cm from the axis of rotation.
A) What is the maximum distance the center of the coin can be placed from the axis if the turntable rotates at 46.6 rev/min?
B) What is the coefficient of friction between the coin and turntable?
An optical system is designed so that an object for a convex spherical mirror of focal length f=15 cm is 20 cm behind the mirror, determine whether the image is real or vertual, erect or inverted
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