1) A GM diesel locomotive pulling 40 to 50 loaded fright cars at 70 miles/hour uses 1.0 gallons of fuel every 632 yards. How many meters can it travel on 10 gallons of fuel? Notes: 1 yard = 3 feet; 1 foot = 12 inches; 1 inch = 2.540 cm. 2) Significant digits. a. Add the following quantities: 0.10 ms, 20.2 s, 6.33 s, 18 s, and 200.55 ms. b. Find the product of the following quantities: 0.0021 g, 655.1 kg, and 4.41 g. 3) Having travelled halfway to the end of a journey at an average speed of 15 km/h, how fast must you traverse the rest of the trip in order to average 20.0 km/h? Be sure to include a diagram.