An engineer must a runway to accommodate air planes that must reach a ground velocity of 61m/s before they can take off. These planes are capable of being accelerated uniformly at the rate of 2.5m/s^2. a)How long will it take the planes to reach takeoff speed?
b)What must be the minimum length of the runway?

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.

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this