Physics HW #1 Answers

# Physics HW #1 Answers - madding (cmm3632) HW01 markert...

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Unformatted text preview: madding (cmm3632) HW01 markert (56475) 1 This print-out should have 21 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 (part 1 of 4) 10.0 points How many significant figures are in 65 . 1 . 1 m? 1. None of these 2. 5 3. 2 4. 3 correct 5. 6 6. 4 7. 1 Explanation: Addition or subtraction of values measured in tenths of a meter are to be rounded to the nearest tenth of a meter. 002 (part 2 of 4) 10.0 points How many significant figures are in 3 . 782 10 19 s? 1. 1 2. 2 3. 6 4. 5 5. 3 6. None of these 7. 4 correct Explanation: Every digit in scientific notation is signifi- cant. 003 (part 3 of 4) 10.0 points How many significant figures are in 3 . 56 10 12 kg? 1. None of these 2. 5 3. 2 4. 1 5. 4 6. 6 7. 3 correct Explanation: Every digit in scientific notation is signifi- cant. 004 (part 4 of 4) 10.0 points How many significant figures are in 0 . 0055 mm? 1. 5 2. 2 correct 3. 3 4. 6 5. 4 6. None of these 7. 1 Explanation: The first non-zero digit is the first signifi- cant digit. 005 10.0 points Convert an acceleration of 4 . 7 mi / h / s to m / s 2 . Correct answer: 2 . 10064 m / s 2 . Explanation: madding (cmm3632) HW01 markert (56475) 2 Let : a = 4 . 7 mi / h / s . a = 4 . 7 mi h s 1 . 609 km 1 mi 1000 m 1 km 1 h 3600 s = 2 . 10064 m / s 2 . 006 (part 1 of 2) 10.0 points The elevators in the John Hancock building in Chicago move 515 ft in 33 s. What is their speed? Correct answer: 4 . 75673 m / s....
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## This note was uploaded on 06/06/2011 for the course CHEM 301 taught by Professor Wandelt during the Spring '08 term at University of Texas at Austin.

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Physics HW #1 Answers - madding (cmm3632) HW01 markert...

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