A strand of hair has an average mass of 2.17 X 10/5 ounces
A strain of rice has a mass of 0.002 ounces how much heavier is the strain of rice. Express in scientific notation
To find the difference in mass between the hair strand and the rice strain, we need to subtract the mass of the rice strain from the mass of the hair strand.
Mass of hair strand = 2.17 × 10^(-5) ounces
Mass of rice strain = 0.002 ounces
Difference in mass = Mass of hair strand - Mass of rice strain
Difference in mass = 2.17 × 10^(-5) - 0.002
Difference in mass = 2.17 × 10^(-5) - 2 × 10^(-3)
Difference in mass = 2.17 × 10^(-5) - 200 × 10^(-5)
Difference in mass = (2.17 - 200) × 10^(-5)
Difference in mass = -197.83 × 10^(-5)
Expressing in scientific notation:
Difference in mass = -1.9783 × 10^2 × 10^(-5)
Difference in mass = -1.9783 × 10^(-3)