Answer:
If one astronaut used more force, then that one would be faster than the other. The independent variable is force. The dependent variable is speed.
Explanation:
Force is what is to be changed. Speed is what is being measured.
IV = Changed/factor DV=Measured/Changes by factor
The answer i think it is... is Temperature
Hope this helped!
The number of significant figures in 369,132,000 is 6