An 80-kg astronaut carrying a 20-kg tool kit is drifting toward the space station at 2 m/s. If she throws the tool kit towards the space station at a
speed of 6 m/s, what is her final velocity (speed and direction)?

If we relied solely on the nonrenewable resources found in the u. s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

Explain why you think this diagram shows what happened to the carbon in the biodome.

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 (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to