Chemistry
robinjpd
19

A stopwatch is calibrated for a time interval of 1/100th of a second with a range of 9 hours 59 minutes and 59.99 seconds. It also has a ± 5-seconds-a-day bias. This means this watch could gain or lose up to 5 seconds each day of use. If you use this stopwatch to measure a time of 1 hour 32 minutes and 42.85 seconds, how much time could have actually passed? exactly 1 hour 32 minutes 42.85 seconds between 1 hour 32 minutes 42.84 seconds and 1 hour 32 minutes 42.86 seconds between 1 hour 31 minutes and 1 hour 33 minutes between 1 hour 32 minutes 37.85 seconds and 1 hour 32 minutes 47.85 seconds

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(1) Answers
Darryl750

The best answer to this question would be the last choice. If the stopwatch measures 1 hour and 32 minutes and 42.85 seconds, then the time that could have actually passed would be between 1 hour 32 minutes 37.85 seconds and 1 hour 32 minutes 47.85 seconds because of the margin of error of plus minus 5 seconds a day. 

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