A6 kg block is sliding down a horizontal frictionless surface with a constant speed of 5 m/s. it then slides down a frictionless ramp to another horizontal frictionless surface which is 2 m lower than the first horizontal surface. what is the constant speed with which the block is now sliding along this new horizontal surface?

this means that the temperature of both substances will be equal

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.