Author Question: An astronaut floating alone in outer space throws a baseball. If the ball moves away at 20 m/s, the ... (Read 424 times)

soccerdreamer_17 · **on:** Jul 29, 2018

An astronaut floating alone in outer space throws a baseball. If the ball moves away at 20 m/s, the astronaut will move in the opposite direction at

A) 20 m/s.
B) a lower speed.
C) a higher speed.
D) more information needed
E) none of the above

Question 2

When U.S. annual energy use and gross national product (GNP) are graphed, the two graphs rise at the same rate until the mid-east oil shocks of the 1970s, after which

A) GNP keeps rising while energy use levels off due to global warming.
B) GNP keeps rising while energy use begins to level off due to increased energy efficiency.
C) energy use decreases due to declining fossil fuel supplies.
D) GNP levels off while energy use keeps rising due to technological stagnation.
E) total energy use increases without a similar increase in GNP, because of increased oil imports.