Suggest a reasonable number of significant digits for reporting the following common values and give some indication as to your reasoning: a. Your body weight for a passport b. A car's fuel usage (use liters per 100 km) Strain gauge Eo Excitation voltage Voltmeter Output voltage 2.121 (Resistance, R) Tensile loading Resistance, R R R Figure 1.16 Strain gauge setup used for Problem 1.46. Problems 39 c. The weight of a bar of pure (at least 99.5%) gold (consider a 1 kgf bar and a 100 oz bar) d. Distance traveled by a body in 1 second if moving at 1 m/s (use meters