1. Airbus A-300 saved 300 kg of mass by making the tailfin out of advanced composites. Estimate in gallons the amount of fuel saved per year.
2. Give the definitions and units of the following in the SI and USCS system of units:
Coefficient of thermal expansion
Coefficient of moisture expansion
Thermal conductivity
Young's modulus
Ultimate strength
Poisson's ratio
Specific modulus
Specific strength
Density
Specific gravity
Ductility
Fracture toughness
Specific heat