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Question 0.4: Significant Figures How many significant figures does each o......

Significant Figures

How many significant figures does each of the following measurements have?

(a) 0.036 653 m

(b) 7.2100 × 10^{-3} g

(c) 72,100 km

(d) $25.03

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(a) 5 (by rule 2)

(b) 5 (by rule 3)

(c) 3, 4, or 5 (by rule 4)

(d) $25.03 is an exact number

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