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An uniform rope of length L = 0.9 m and mass m is attached to the ceiling, so it hangs down freely. A LaGuardia physics

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An uniform rope of length L = 0.9 m and mass m is attached to the ceiling, so it hangs down freely. A LaGuardia physics student briefly shakes the free end of the rope generating a pulse that travels up to the ceiling. How long does it take for the pulse to reach the ceiling? The free fall acceleration is g = 9.81 m/sz. The time of travel, t = Units

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