There is, however, a relationship between a planet's distance from the Sun and its period of revolution. Kepler's third law of planetary motion says that the square of the planet's orbital period is proportional to the cube of its semimajor axis.
Answer: 0.001 metric tonnes
Explanation:
According to Einstein equation, Energy and mass are inter convertible.
E= Energy
m = mass
c= speed of light
Given : Complete combustion of 1.00 kg of coal releases about 
of energy.
Given mass: 1 kg
Converting kg to metric ton using the conversion factor:
1 kg=0.001 metric tonnes
Thus 1 kg of coal would also be equal to 0.001 metric tonnes.
31g phosphorus has 6.02×10^23 atoms
then 124 " '' (6.02×10^23×124)÷31
≈2.408×10^24
and molecules are (2.408×10^24×2)
≈4.816×10^24
When studying the
movement of heat, what does the term "system" refer to any quantity
of matter of fixed identity of the chosen study. “Surroundings" refer to
the rest of the universe beyond the boundary of your chosen study or system.
