Afossil found by a paleontologist contains 21.875g of carbon-14. it originally contained 350g of carbon-14. how old is the fossil if the half life of carbon-14 is 5,730 years?

it about 600 mph from what i calculated

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

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we need to see it