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If the spring of a jack-in the-box is compressed, a distance of 8.00cm from its relaxed lenght and the released, what is the speed of the toy head is 50.0g the spring constant is 80.0N/m, and the toy head moves only in the vertical direction. Also disregard the mass of the spring. (Hint: Remember that there are two forms of potential energy in the problem.)

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