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Waves: Transverse Waves on a String. Level 2, Example 1

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Waves: Transverse Waves on a String. Level 2, Example 1
A 54.0-kg block hangs from a 3.80-m long steel wire attached to the ceiling. Find the wire’s mass if you pluck the bottom end of the wire and observe that it takes 0.0492 s for the pulse to travel to the top of the wire.
A 54.0-kg block hangs from a 3.80-m long steel wire attached to the ceiling. Find the wire’s mass if you pluck the bottom end of the wire and observe that it takes 0.0492 s for the pulse to travel to the top of the wire.