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19. Many mechanical pencils use 0.4 millimeter lead. What is the diameter in feet? 14mm/.001m 39.4 in 1 ft 0013133: 1 1 m/ 12 in mm

19. Many mechanical pencils use 0.4 millimeter lead. What is the diameter in feet? 14mm/.001m 39.4 in 1 ft 0013133: 1 1 m/ 12 in mm

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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For number 19, I feel I am not doing it correctly. What is the steps and answer to number 19?
18. The speed of light is 3.00 x 108 m/sec. How far does light travel per year in miles? 1 km/.621 mil 3600 sed 24 hr 365 days ThR/ I day 1 yr sec 1000ml 1 Km 3.00-108 m -5.87,51568·1012 = √5.88 1012 19. Many mechanical pencils use 0.4 millimeter lead. What is the diameter in feet? SF 9 4mm).001 m (39.4 in 1 ft 0013133: 1 m/12 in 1 mm 500.0 20. Copper has a density of 8.96 g/cm³. If a penny weighs 3.05 g, what is its volume in li 8.96g/cm³= 1059 HOL 21. Significant Figures: Determine the number of round to three significant figures. Number of Significant Scientific Notation Figures 4 5.000 x 10² V=.340L ficant figures, convert to scientific Round to 3 Significar 500.
Transcribed Image Text:18. The speed of light is 3.00 x 108 m/sec. How far does light travel per year in miles? 1 km/.621 mil 3600 sed 24 hr 365 days ThR/ I day 1 yr sec 1000ml 1 Km 3.00-108 m -5.87,51568·1012 = √5.88 1012 19. Many mechanical pencils use 0.4 millimeter lead. What is the diameter in feet? SF 9 4mm).001 m (39.4 in 1 ft 0013133: 1 m/12 in 1 mm 500.0 20. Copper has a density of 8.96 g/cm³. If a penny weighs 3.05 g, what is its volume in li 8.96g/cm³= 1059 HOL 21. Significant Figures: Determine the number of round to three significant figures. Number of Significant Scientific Notation Figures 4 5.000 x 10² V=.340L ficant figures, convert to scientific Round to 3 Significar 500.
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