1. Airbus A-300 saved 300 kg of mass by making the tailfin out of advanced composites. Estimate in...

Question

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

Robert · Accepted Answer

Microsoft Word - ConversionTables.doc
 
452
Converting SI to U.S. Customary Units  
 
We use Canadian spelling here (metres for meters and litres for liters). 
 
 
To convert from (SI) Conversion factor  To get U.S. Customary 
                                                                                                                 
Length and velocity 
Metres (m)   Multiply by 3.28084  Feet (ft) 
Metres   Multiply by 1.09361  Yards 
Metres per second (m/s) Multiply by 2.23694  Miles per hour (mph) 
Centimeters (cm)  Multiply by 0.3937  Inches (in.) 
Milimeters (mm)  Multiply by 0.03937  Inches 
Kilometers (km)  Multiply by 0.621371  Miles (mi) 
m3/(m2-day)  = m/day  Multiply by 24.5421  gpd/ft2
Area 
cm2   Multiply by 0.155  Square inch 
m2   Multiply by 10.76391  Square foot (ft2) 
Hectare (ha = 10 000 m2) Multiply by 2.471054  Acre 
km2 ( = 100 ha = 106 m2) Multiply by 0.38610216 Square mile
Volume and Flow 
Litres ( = 1 dm3)  Divide by 28.31685  Cubic foot (ft3) 
cubic metre (m3)  Multiply by 35.

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...

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