1) a) Mr. Knoll took 85,5s to ride up a 455m hill. What was his average speed in m/s? What is the correct number of sigfigs in your answer?

The least penetrating form of radiation is

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)

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?