Final answer:
To calculate the difference in thickness between paper and a human hair in scientific notation, one must convert the measurements into comparable units (e.g., meters or inches), but the question lacks specific values, particularly for the thickness of the paper, which makes it impossible to provide an accurate answer.
Step-by-step explanation:
To express the difference in thickness between a piece of paper and a human hair in scientific notation, we need to analyze the provided information and use our understanding of how to convert numbers into scientific notation. Given a human hair's diameter as approximately 60 µm, or 6.0 × 10-5 meters, and using standard conversion between metric and imperial units, we can infer the comparisons in inches if needed. However, the question does not provide a specific thickness for the paper, thus it's not possible to directly calculate the difference in thickness without additional information.