If a measurement is recorded as 0.00780 m, how many significant figures does it

If a measurement is recorded as 0.00780 m, how many significant figures does it have?

If a measurement is recorded as 0.00780 m, how many significant figures does it have?

Step 1: Look at the number 0.00780 m.
Step 2: Identify the digits in the number. The digits are 7, 8, and the zero after the 8.
Step 3: Understand that leading zeros (the zeros before the 7) are not significant. They only show the position of the decimal point.
Step 4: Recognize that the zero after the 8 is significant because it shows precision in the measurement.
Step 5: Count the significant figures. The significant figures are 7, 8, and the zero after 8, which gives us a total of three significant figures.

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