Barometric pressure changes are used by meteorologists to forecast short-term changes in the weather and are reported in units of inches of mercury. If the local barometric pressure is 22.66 inches of mercury (1 inch = 2.54 cm exactly), calculate the pressure in atm.
I calculated it and got an answerr of 0.757 atm. Am I correct?
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you need four sig digits, don't you?
My professor said to only keep 3 sig digs
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