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In the figure, two particles, each with mass m = 0.95 kg, are fastened to each other, and to a rotation axis at O, by two thin rods, each with length d = 5.8 cm and mass M = 1.4 kg. The combination rotates around the rotation axis with angular speed ? = 0.26 rad/s. Measured about O, what is the combination's kinetic energy?

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