A strand of hair has an average mass of 2.17×10−5 ounces. A grain of rice has an average mass of 0.002 ounces. How much heavier is a grain of rice than a strand of hair? Express your answer in scientific notation.(1 point)
To find the difference in mass between the grain of rice and the strand of hair, we need to subtract the mass of the strand of hair from the mass of the grain of rice.
Mass of grain of rice = 0.002 ounces
Mass of strand of hair = 2.17 × 10^(-5) ounces
Difference in mass = Mass of grain of rice - Mass of strand of hair
Difference in mass = 0.002 - 2.17 × 10^(-5)
To express the difference in scientific notation, we need to convert the result to a decimal between 1 and 10, multiplied by a power of 10.
0.002 - 2.17 × 10^(-5) = 0.00199783
To express this in scientific notation, we can write it as:
1.99783 × 10^(-3)
Therefore, the grain of rice is approximately 1.99783 × 10^(-3) ounces heavier than the strand of hair.