Question

prel 1, FUU UUS The micrometer (1 m) is often called the micron. (a) How many microns make up 7.3 km? (b) How many centimeters equal 7.3 um? (c) How many microns are in 7.3 yd? (a) Number Units m (b) Number Units (c) Number Units Click If you would like to Show Work for this question: Open Show Work LINK TO TEXT LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM VIDEO MINI-LECTURE MATH HELP By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor Question Attempts: 0 of 3 used SAVE FOR LATE % Earn Maximum Points available only if you answer this question correctly in your first attempt. Y W PDF MacBook Air

Answer 1

1 micro meter (μm) = 10-6 m

(a)

7.3 km = 7.3 x 103 m

Let 7.3 km contains n microns.

7.3 x 103 m = n 10-6 m

n = 7.3 x 109 microns

(b)

7.3 μm = 7.3 x 10-6 m = 7.3 x10-4 c m

( C )

1 yard = 0.914 m

7.3 yard = 0.914 x 7.3 m = 6.67 m = n microns

6.67 m = n microns = n 10-6 m

n = 6.67 x 106 microns