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Physics 1 Problem Solutions 14

# Physics 1 Problem Solutions 14 - 10 Chapt 1 Quantities...

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Unformatted text preview: 10 Chapt. 1 Quantities, Units, Conversions, Measurement, Significant Figures, and Uncertainties 001 qmult 10512 2 3 4 moderate math: acre-foot conversion fullmult 2 61. ∗∗ American hydraulic engineers often use acre-feet to measure volume of water. An acre-foot is the amount of water that will cover an acre of flat land to 1 foot. Say 5 . 00 in of rain fell on a plain of 50 . 0 km 2 . How many acre-feet of water fell? Note 1 square mile equals 640 acres and 1 km = 0 . 6214 mi. HINTS: First, find the volume in the hybrid units of inch-km 2 and then use a separate factor of unity for each unit conversion: divide and conquer. a) 1066 acre-feet. b) 1492 acre-feet. c) 1776 acre-feet. d) 5150 acre-feet. e) 2470 acre-feet. 001 qmult 10520 1 4 5 easy deducto-memory: Fermi on lectures and the micro-century fullmult Extra keywords: mathematical physics 62. ∗ “Let’s play Jeopardy ! For \$100, the answer is: Nearly the time period of a standard 50-minute lecture period as noted by Italian-American physicist Enrico Fermi (1901–1954).”lecture period as noted by Italian-American physicist Enrico Fermi (1901–1954)....
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