A500-g squirrel with a surface area of 1020 square centimeters falls from a 5.5-meter tall tree to the ground. what is its terminal velocity? (use the drag coefficient of a horizontal skydiver, and assume that the density of the air is 1.16 kg/m33).

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 (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to