If you take 42.0 meters of string and ball it up and put it on a scale you measure that it weighs 18.8 grams. if you tighten a length of this same string to a tension of 8.5 newtons, what is the wave speed for waves that would travel on this string when you plucked it?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)