<span>I think it is a. the evolution of a gas</span>
I think its true, I think.
The present day humans first appeared in the fossil record's around 66 million years ago soon after the cretaceous paleogene extinction event that eliminated 3 - quarters of plant and animals species on earth including many dinosaurs.
Answer:
216 m
Explanation:
Assuming a straight line:
Δx = vt
Δx = (12 m/s) (18 s)
Δx = 216 m
Answer:
It can be shown that the potential energy of an object at the surface of the planet would be -G M / R if the potential at infinity is chosen to be zero.
Kinetic energy of G M / R would be required for the escape speed of such an object. The total energy in all such cases is zero.
This can easily be seen by considering the speed of an object falling from infinity towards the planet - the total energy will remain zero if it was zero when the object started to fall.