How many micrometers arc in a centimeter Calculation shown b

How many micrometers arc in a centimeter? Calculation shown below. How many nanometers/centimeter? How many nanometers/millimeter? How many millimeters/centimeter? How many coccus shaped bacteria (each 1 um wide) can fit end to end across the width of a human hair that is 0.05 mm wide? How many rod shaped bacteria (each 2 um long) can fit end to end across the width of a human hair that is 0.05 mm wide? How many coccus shaped bacteria (each 2 um wide) can fit end along the length of a pencil that is 16 cm in length?

Solution

2]

How many nanometers/centimeter?

1 meter/ 10² cm x 10⁹ nm/ 1 meter = 10⁷ nm/cm

3]

How many nanometers/millimeter?

1 meter /10³ mm x 10⁹ nm/ 1 meter = 10⁶ nm/mm

4]

How many millimeters/centimeter?

1 meter /10² mm x 10³nm/ 1 meter = 10 mm/cm