# Pulse transmission

A triangular deformation (a pulse) is travelling on a tightened string with the speed $$5~\mbox{m/s}$$. The length of the base of the triangle is $$30~\mbox{cm}$$. The pulse suddenly reaches a point where the wire connects to a different wire made out of a different material. The pulses travel with the speed $$7~\mbox{m/s}$$ in this material. What will be the length of the base of the triangle (length of the pulse) in cm on the other wire?

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