A steel wire of length 30.0m and a copper wire of length 20.0m, both with 1.00mm diameters, are connected end to end and streched to a tension of 150 N. During what time interval will a transverse wave travel the entire length of the two wires?

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.