A roller coaster is traveling at 13 m/s when it approaches a hill that is 400 m long. heading down the hill, it accelerates at 4.0 m/s 2. What is the final velocity of the roller coaster? Round your answer to the nearest whole number

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