Chapter 01 Homework - Chapter 01 Homework Mr William...

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Chapter 01 Homework Mr William Oechsner III Started: May 27, 2010 3:46 PM Questions: 20 1. (Points: 1) Since 1983 the standard meter has been defined in terms of which of the following? a. specific alloy bar housed at Sevres, France b. wavelength of light emitted by krypton-86 c. distance from the Earth's equator to the North Pole d. the distance light travels in a certain fraction of a second 2. (Points: 1) In mechanics, physicists use three basic quantities to derive additional quantities. Mass is one of the three quantities. What are the other two? a. length and force b. power and force c. length and time d. force and time 3. (Points: 1) One year is about ____ seconds while one day is exactly ____ seconds. a. 3.16 × 10 7 , 86 400 b. 5.26 × 10 5 , 86 400 c. 3.16 × 10 7 , 8 640 d. 1.04 × 10 6 , 36 000 4. (Points: 1)
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The number 0.000 17 has how many significant figures? a. 2 b. 3 c. 5 d. 6 5. (Points: 1) On planet Z, the standard unit of length is the foose. Ann the Astronaut is 5.90 feet tall on earth.
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