While fishing, you get bored and start to swing a sinker weight around in a circle below you on a 0.25-m piece of fishing line. the weight makes a complete circle every 0.50s, what is the angle that the fishing line makes with the vertical?

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)