Mr. Z holds 200 kg above his head for 5 seconds. What is the work done on the weights? Given:
Sloving for:
Equation:
Substitution:
Answer with units

Avalue that describes how heavy an object is and is related to the force of gravity is

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)

Which component of the earth’s atmosphere is decreased due to photosynthesis?