A car is cruising along the highway at a speed of 90 km/h. The driver increases the car's speed to 120 km/h in 4 seconds. What is the car's acceleration, in km/h/s?

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.

i think the answer would be reserve.

answer///isobars;