Barney walks at a velocity of 1.7 m/s on an incline plane which has an angle of 18.5° with the ground what is a horizontal composition of Barney’s velocity

In what direction does the medium move relative to the direction of the wave? explain.

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)

When doing scientific research ,the sources used should be ?