An average car accelerates at 1.50 m/s2. Starting from rest, the amount of time it will take the car to reach 22.2 m/s is *
A. 15s
B. 40s
C. 22s
D. 80s

Which of the following represents an upside-down image?

Explain why electric current cannot exist if a current doesn't have a voltage source.

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)