Rank the following measurements by the percent uncertainty (or percent error). 2

Question

Rank the following measurements by the percent uncertainty (or percent error).

2/6/2017 10:00 PM A 45.4/50 1/29/2017 12:21 AM Gradebook c-en Print H Calculator Periodic Table Question 29 of 29 Map a Sapling Learning macmillan learning Rank the following measurements by the percent uncertainty (or percent error) Lowest Highest The speed of an airplane is measured You estimate the number to be 570 10 km/hr. of marbles in a jar to be 84. The actual number is 100. You estimate the change The speed of an airplane is measured in your pocket to be about to be 570 130 km/hr. 50 cents 10 cents. The width of a textbook is measured to be 216 mm using a ruler with 1 mm tickmarks A Previous 3 Give Up & View Solution Check Answer e Next Exit B Hint

Explanation / Answer

speed airplane =10 / 570 * 100 = 1.75 %

marbles of jar

actual number is 100

measure is 84

so

100 - 84 = 16

error = (16 / 84) * 100 = 19.05 %

pocket cents

10 / 50 * 100 = 20 %

speed or airplane

130/570 *100 = 22.8%

book

1 / 216 * 100 = 0.46 %

basically you need to divide the uncertainty by the true measure

*hope it helps =)

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