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14 questions from this quiz
Equal distances in equal time intervals
It includes direction
50 Hz
0.20 s
To compensate for friction
Evenly-spaced dots
Spaces between dots
v=stv = \frac{s}{t}v=ts
Eliminates friction
Perfectly horizontal
v=ltv = \frac{l}{t}v=tl
Interrupts the light beam
Keep eye directly above measurement point
Greater precision and eliminates friction
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