(a) What is the length of the pencil in the following figure if the ruler reads in centimeters? How many significant figures are there in this measurement?
(b) An automobile speedometer with circular scales reading both miles per hour and kilometers per hour is shown. What speed is indicated, in both units? How many significant figures are in the measurements?

Transcribed Image Text:

1 2 3 4 5 6 7 8 9 20 100 40 80 60 160 0180 6 40 100 40 20 200 20 140 20 220 160 0 kmh mp 240