Question

question 17 (4 points) answer the following questions using the image below: determine the length (in cm) of the object using the ruler. ____ cm number of sig figs (only use whole numbers) __ lower calibration measurement: __ cm upper calibration measurement: ____ cm be sure to go to the appropriate amount of sig figs. remember, sig figs include all known digits, plus one estimated digit

Explanation:

Step1: Read the ruler measurement

The end - point of the object is just before the 4.0 cm mark. We estimate the measurement as 3.9 cm.

Step2: Determine significant figures

The measurement 3.9 cm has 2 significant figures. The 3 is a known digit and the 9 is an estimated digit.

Step3: Find lower calibration measurement

The smallest division on the ruler is 0.1 cm. The lower calibration measurement for 3.9 cm is 3.85 cm.

Step4: Find upper calibration measurement

The upper calibration measurement for 3.9 cm is 3.95 cm.

Answer:

Blank 1: 3.9
Blank 2: 2
Blank 3: 3.85
Blank 4: 3.95