Chemistry, 27.05.2020 23:10 alexa006ox9k63

Tracy and Eric are timing how fast marbles roll down an inclined plane . They plan to do this 5 times , and then take the average time for their results . What would be the BEST way to improve the accuracy of their data?

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Tracy and Eric are timing how fast marbles roll down an inclined plane . They plan to do this 5 time...