You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its
maximum horizontal range. You shoot the gun straight up,
and it takes 4.0 s for the dart to land back at the barrel.
What is the maximum horizontal range of your gun?

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)