What will be the weight of a man of mass 90kg when he is on a planet with acceleration due to gravity of 15ms-2?

Which accounts for an increase in the temperature of a gas that is kept a constant volume

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)

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap