Aboat travels in a straight path that is 25° west of north. which describes the values of the west and north components of the boat’s displacement?

both components are positive numbers. both components are negative numbers. the west component is a negative number, and the north component is a positive number. the west component is a positive number, and the north component is a negative 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 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)