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The figure blow shows the kinetic energy of a simple pendulum versus its angle θ from the vertical. Note the energy units are in milli-joules. The vertical axis is set by K_s=2mJ and the mass of the pendulum bob is 0.200 kg. Determine the length of the pendulum in meters. Use g = 9.8 N/kg.

К (m)
K,
-100 -50
50
100
Ө (mrad)

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