7. When the arm of force the arm of resistance, the lever doesn't
conserve effort.
a. is shorter than b. is longer than c. equals d. (a) and (c)​

Why cooking gas has a typical smell

What is the measure of a change in an objects velocity?

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)