calculate and compare the chemical energy of coal to its gravitational potential energy. Burning 1 kg of coal releases about 3 million joules of energy. if you could use all of the chemical energy to lift another kilogram of coal, how could you lift it?

Explanation:

chemical energy of 1 kg coal is 3 million joules .

If this energy is used to lift one kg of coal , let height attained be h

chemical energy = gravitational energy of 1 kg of coal

3 x 10⁶ = m g h = 1 x 10 x h

h = 3 x 10⁵ m

= 300 x 10³ m

= 300 km .

i kg coal can be lifted by height of 300 km .

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.