A person measures his or her heart rate by counting the number of beats in 30 s . If 40 ± 1 beats are counted in 30.0 ± 0.5 s , what is the heart rate and its uncertainty in beats per minute?
Added by Pilar F.
Step 1
To do this, we simply multiply the number of beats by 2. So, the heart rate is 40 beats/30 seconds * 2 = 80 beats/minute. Show more…
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