일반물리학 1 · Measurement · Problem 27
일반물리학 1 — Measurement: Problem 27
27 A grocer’s balance shows the mass of an object as 2.500 kg. Two gold pieces of masses 21.15 g and 21.17 g are added to the box. What is (a) the total mass in the box and (b) the difference in the masses of the gold pieces to the correct number of significant figures?
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