Physics

Problem

A steel wire has a linear mass density of

2.5\times10^{-3}\,\text{kg}\,\text{m}^{-1}

. A laboratory setup requires a transverse pulse to travel

8.0\,\text{m}

along the wire in

0.40\,\text{s}

. What tension must be applied to the wire to meet this requirement? a)

0.25\,\text{N}

1.0\,\text{N}

0.05\,\text{N}

20\,\text{N}