A thin uniform tube 40cm long, open at both ends, is immersed in mercury about half its length. Now close the top corner and remove it vertically from the mercury. If the length of the remaining mercury in the tube is 15cm, what is the atmospheric pressure of mercury in cm? answers:

1.72 2.73 3.74 4.75 5.76

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.

because growing process had stoped after 4-5 year

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr