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SolnAssignment1 2007

# SolnAssignment1 2007 - Assignment Solution#1 Engineering...

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M Liu Page 1 of 2 9/7/2007 Assignment Solution #1 Engineering 1230 FA September 7, 2007 1. Identify the number of significant figures, and underline the figures: 1) 3.0800; Ans: 5, 3 .0800 2) 0.00418; Ans: 3, 0.00418 3) 7.09 × 10 -5 ; Ans: 3, 7 .09 × 10 -5 4) 91,600; Ans: 3, 91 ,6 00 5) 0.003005; Ans: 4, 0.003005 6) 3.200 × 10 9 ; Ans: 4, 3 .200 × 10 9 7) 250; Ans: 2, 25 0 8) 780,000,000; Ans: 2, 78 0,000,000 9) 0.0101; Ans: 3, 0.0101 10) 0.00800; Ans: 3, 0.00800 2. Use the listed conversion factors to convert the following quantities. (note: you must show your work) Conversion factors: (lb = pound, oz = ounce, qt = quart, ft = foot, gal = gallon) 1 lb = 16 oz, 4 qt = 1 gal, 1 ton = 2000 lb, 1 mile = 5280 ft, 1 in = 2.54 cm, 1 yd = 3 ft, 1 liter = 1.057 qt 1) 80 ounces, in pounds; Ans: ( ) ( ) 1 lb 80 oz 80 oz 5 lb 16 oz = = 2) 24 quarts, in gallons; Ans: ( ) 1 gal 24 qt 24 qt 6 gal 4 qt = = 3) 6000 grams, in kilograms; Ans: 6000 g 6 kg = 4) 72 inches, in yards; Ans: ( ) ( ) ( ) 1 ft 1 yd 72 in 72 in 2 yd 12 in 3 ft = = 5) 120 lb/ft, in oz/in;

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M Liu Page 2 of 2 9/7/2007 Ans: ( ) ( ) ( ) 16 oz 1 ft 120 lb/ft 120 lb/ft 160 oz/in 1 lb
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