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  1. Yes, seems hard. I assume that the spring is attached to the turntable. In this case, it is a matter of conservation of angular momentum and energy. Initial angular momentum is 0 (nothing moving) Final angular momentum is...

    1 Answers · Science & Mathematics · 14/12/2007

  2. The stored energy in the spring is 0.5*k*dx^2. This energy is transferred to the kinetic energy of the mass and rotational energy of the turntable. If v is the mass velocity on release, its kinetic energy is .5*m*v^2 The rotational energy of...

    1 Answers · Science & Mathematics · 06/11/2007

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