If an astronaut whose total mass is 100 kg ejects 0.1 kg of gas at a speed of 50 m/s from her propulsion pistol, her recoil speed is
A) 50 m/s.
B) 5.0 m/s.
C) 0.5 m/s.
D) 0.05 m/s.
D
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The coarse-grained equivalent of basalt is _______. Fill in the blank(s) with the appropriate word(s)
What is the global conveyer belt referring to? How does this thermohaline flow transport heat
throughout the world ocean? Include aspects of upwelling and downwelling. What will be an ideal response?
Why was it difficult to accurately count the number of European immigrants to the U.S between 1840 and 1910?
A) European immigrants didn't have the correct documents. B) Ellis Island had to process too many people at a time. C) Europe experienced frequent boundary changes. D) Many didn't stay very long. E) They didn't have computers back then.
Most climate models predict that Earth’s average surface temperature will increase by an additional ____________________ by the end of this century
Fill in the blank with correct word.