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Unformatted text preview: narainswamy (ann452) HW1 Mackie (20211) 1 This printout should have 10 questions. Multiplechoice questions may continue on the next column or page find all choices before answering. 001 10.0 points A water holding tank measures 105 m long, 40 m wide, and 11 m deep. Traces of mercury have been found in the tank, with a concen tration of 60 mg / L. What is the total mass of mercury in the tank? Correct answer: 2772 kg. Explanation: Let : = 105 m , w = 40 m , d = 11 m , and = 60 mg / L . = m V m = V = w d = (60 mg / L) (105 m) (40 m) (11 m) kg 10 6 mg 1000 L m 3 = 2772 kg . 002 10.0 points One cubic centimeter ( 1 . 0 cm 3 ) of water has a mass of 0 . 001 kg at 25 C. Find the mass of 8 . 8 m 3 of water at 25 C. Correct answer: 8800 kg. Explanation: Basic Concepts: = m V 1 cm = 1 10 2 m Given: V = 8 . 8 m 3 = . 001 kg 1 cm 3 Solution: m = V = . 001 kg 1 cm 3 (8 . 8 m 3 ) parenleftbigg 1 cm 1 10 2 m parenrightbigg 3 = 8800 kg 003 10.0 points A fourengine jet accelerates down the runway at 6 m / s 2 ....
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This note was uploaded on 06/24/2009 for the course PHYSICS 2201 taught by Professor Mackie during the Spring '09 term at Temple.
 Spring '09
 MACKIE
 Physics, Work

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