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# When a measurement is very, very small or very, very large, the measurement can be expressed in scientific notation. Another option is to express

## When a measurement is very, very small or very, very large, the measurement can be expressed in scientific notation. Another option is to express the measurement using a metric prefix. For example picometers was a useful measure for estimating the size of an Aluminum atom, centimeters is useful for measuring the width of your paper, and kilometers is useful for measuring the distance between two cities. Consider the following measurements. In part a., identify a unit of measure that would more conveniently express the measurement. Please use the "Metric System Reference Page" to help you! In part b., show how you can mathematically calculate the measurement's new value using a scaling factor or dimensional analysis. If you do not know how to label units in your work or show your work, please ask! For calculator help with scientific notation check out http://xaktly.com/ScientificNotation.html Please box your final answer, and express measurements to the appropriate number of significant vile figures. galeu show y le vode 1. The average width of a human hair is about 9.5 x 105 meters. a. What would be a more reasonable unit for reporting this measurement? Explain your reasoning. b. Express this measurement in the unit you identified. Show work (scaling factor or dimensional analysis). nom stiupan vam moiteluoles on my 201-12) Yasy 025 g of sb best of bood 2. A midsize truck has a mass of roughly 1.94 x 106 grams. a. What would be a more reasonable unit for reporting this measurement? Explain your reasoning. b. Express this measurement in the unit you identified. Show your work (scaling factor or dimensional up analysis). omin olavius vasm woll (doni

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