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Physics Pre-Lab Help?????

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1. In your own words, describe how a photogate works.

2. A cart with a 5-cm-long flag on it passes through a photogate with a constant velocity of 10 m/s, how long does it take for the flag to pass through the photogate? (explain your reasoning) 

3.Pete and Angelica measure the speed of a car to be 10.2 ± 0.1 m/s and 9 ± 1 m/s. Do these measurements match each other within their experimental uncertainty? (explain your reasoning) 

 

asked Oct 17, 2016 in PHYSICS by heather Apprentice

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