You are driving on the highway at 40 m/s with another car driving next to you at exactly the same speed. When you honk your horn (with a frequency of 315 Hz), what frequency of sound will the driver of other car perceive?​

Explain the consequences of this addiction to the brain tissue

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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)