Acosmic ray travels 60 km through the earth’s atmosphere in 400 μs, as measured by experimenters on the ground. how long does the journey take according to the cosmic ray?

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.

unlike poles attract

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle