If a force of 2 N applied over an area of 2 cm², calculate the pressure produced.

10000 Pa

Explanation:

Area =

= 2/10000 =

We know that,

Formula of pressure =

Pressure = Force/Area = 2N/0.0002 = 10000 Pascal

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