A rigid massless rod is rotated about one end in a horizontal circle. There is a mass attached to the center of the rod and a mass attached to the outer end of the rod. The inner section of the lord sustains 2.08 times as much tension as the outer section. Find the ratio of the mass attached to the outer end to the mass attached to the center.

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

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)

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?