Question





A watch manufacturer claims that its watches gain or lose no more than 8 s in a year.

How accurate is this watch, expressed as a percentage?

Express your answer using one significant figure.
Henry
3600s/h * 24h/d * 365d/y = 31,536000 s/yr

Accuracy = (8/31,536,000) * 100% = 2.54*10^-5.