일반물리학 1 — Measurement: Problem 14

14 A lecture period (50 min) is close to 1 microcentury. (a) How long is a microcentury in minutes? (b) Using \[\text{percentage difference} = \left( \frac{\text{actual} - \text{approximation}}{\text{actual}} \right) 100\], find the percentage difference from the approximation.