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An object of mass 8.0 kg is attached to an ideal massless spring and
allowed to hang in the Earth's gravitational field. The spring stretches 3.6
cm before it reaches its equilibrium position. If this system is allowed to
oscillate, what will be its frequency?
O 0.0045 Hz
O 2.1 Hz
O 0.67 Hz
O 2.6 Hz

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