Answer The value of the difference in millimeters between the diameter of the virus of polio and a common bacterium, expressed in scientific notation is: 2.985 * 10.03 mm.
The difference , in millimeters , between the diameter of the polio virus and that of a common bacterium is calculated by subtracting the two diameter values from the largest minus the smallest as follows:
Intermediate diameter of a common bacteria = 0.003 mm
Poliomyelitis virus diameter = 0.000015 mm
Difference =? mm in scientific notation
Difference = 0.003 mm - 0.000015 mm = 0.002985 mm
At the express the result in scientific notation is:
0.002985 mm = 2.985 * 10-3 mm.