One wants to determine the depth \(h\) of a well experimentally. For this purpose, you throw a stone into it, and you hear the thud at the bottom after a time \(\tau=3.0 \mathrm{~s}\). The speed of sound is worth \(v_{s}=340 \mathrm{~m} / \mathrm{s}\). What is the value \(h\) ?