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20 July, 06:59

A good-quality measuring tape can be off by 0.49 cm over a distance of 23 m. What is the percent uncertainty?33% Part (a) If 44 ± 3 beats are counted (in exactly 30 s) what is the percent uncertainty in the measurement of their heartbeats per minute?

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  1. 20 July, 07:00
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    Step-by-step explanation:

    First:

    (Error/Total) x 100%

    (0.49/23) x100% = 2.13%

    Second:

    (Absolute uncertainty/mean) x100%

    (3/44) x100% = 6.81%
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