1) use dimensional analysis to determine which of the following expressions gives the area of a circle: is it pie r ^2, or 2 pie r? explain
- pie r^2 right?? because its what they normally use to find area of a circle
2) If a distance d has units of meters and a time T has units of sec, does the quantity T+d make sense physically?? what about the quantity d/T? explain in both cases
- ?? I don't know