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.

Question

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.

GPT 3.5 · Answer

A grain of rice is heavier than a strand of hair by 0.002 - 2.17×10^(-5) = 0.001999783 ounces. In scientific notation, this is 1.999783 × 10^(-3) ounces.