Asemicircle of radius a is in the first and second quadrants, with the center of curvature at the origin. positive charge +q is distributed uniformly around the left half of the semicircle, and negative charge −q is distributed uniformly around the right half of the semicircle in the following figure

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.