Solve the following problems:
Problem I: A thin copper wire has a cross-sectional diameter 1mm and a length 0f 30 cm. Find the wire in grams.
Part 1: List three devices used for length measurement and their respective smallest divisions.
Part 2: In what units does the measurement caliper measure?
Problem II: If the thickness of 35 identical pages of a book is measured to be 10.5 mm, what is the average thickness of each sheet?
Please show your results in detailed calculations.