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# hw1 - a density o± 8 97 g cm 3 What is the mass o± the...

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Muraj, Hamza – Homework 1 – Due: Jan 23 2006, 4:00 am – Inst: Florin 1 This print-out should have 1 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points A sphere of metal has a radius of 6 . 7 cm and
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Unformatted text preview: a density o± 8 . 97 g / cm 3 . What is the mass o± the sphere? Correct answer: 11300 . 7 g. Explanation: Let : r = 6 . 7 cm and ρ = 8 . 97 g / cm 3 . Density is mass per unit volume, so ρ = m V m = ρ V = ρ 4 3 π r 3 = ( 8 . 97 g / cm 3 ) 4 3 π (6 . 7 cm) 3 = 11300 . 7 g ....
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