What is the approximate value of the unspecified resistance? A) 90 Ω B) 320 Ω C) 1.1 kΩ D) 1.8 kΩ

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.

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

answera compound;