Nuclei that lie outside the undergo spontaneous radioactive decay.

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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)