A sprinter who is running a 250 m race accelerates from rest at 7.5 m/s² for 1.2 s and maintains this speed for the remainder of the race. What is her time for the race?

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.

this is a good question! i'll do some research and come back when i have the answer!

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