How much force does it take to bring a 1,050 N car from rest to a velocity of 42 m/s in 13 seconds?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

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)

Can you match these to the correct definition