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In 2017, The United States used about 669,000,000 short tons of coal (FYI: 1 short ton=2000...

In 2017, The United States used about 669,000,000 short tons of coal (FYI: 1 short ton=2000 lbs) for electrical power generation. If 6.5 Gigajoules of electrical energy is produced by 1 short ton of coal (6.5 GJ/short ton of coal), then:

A. How much electrical energy in GJ was generated for electricity by coal in 2016? Give your answer in GJ.

B. Convert your answer from A to TWh (tera watt hours. (1 GJ=2.7x10^-7 TWh)

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Answer #1


l shottonofcoal pooluces = G.5 Ga-joules of energy total Enorgy pmoduocec E- G-5 Gliga jodas ×66 9000 000 short ton Shost tor づし13u8.500,000 Gif.joule Tera W hrs 12- 1 12- 1O secon 3.6 X 10 Joules 、 3.GX10 X10 J 3.6 x IO

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