Physics

Problem

A tall school building stands

102\,\text{m}

away from a blank wall. How long after shouting should a student expect to hear the echo if the speed of sound is

330\,\text{m/s}

? a)

0.31\,\text{s}

0.68\,\text{s}

0.62\,\text{s}

1.24\,\text{s}