What is the kinetic energy of a 55-kilogram skier traveling at 9.0 meters per second?
(1)2.5 × 102j
(2)5.0 × 102j
(3)2.2 × 103j
(4)4.9 × 103j

unable to answer the rest since your question is incomplete

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.