(a) If your speedometer has an uncertainty of 2.0 km/h at a speed of 90 km/h, what...
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(a) If your speedometer has an uncertainty of 2.0 km/h at a speed of 90 km/h, what is the percent uncertainty?
(b) If it has the same percent uncertainty when it reads 60 km/h, what is the range of speeds you could be going?
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