Answer:
the radius of planet B is 
times the radius of planet A
Explanation:
The surface gravity of a planet is given by
where
G is the gravitational constant
M is the mass of the planet
R is the radius of the planet
For the two planets in the problem, we have:
(same gravity)
(planet B has twice the mass of planet A)
So we can write
so, the radius of planet B is times the radius of planet A.
The Sun is just a big plasma ball of hydrogen , held together by the mutual gravity of all it's mass.This gigantic mass pulls every single particle / atom inwards , trying to compress the sun down ( or make it collapse ) .
Also on the sun , nuclear fusion began's to take place. This is where protons and atoms become one ( they merge together ) .
I really hope that this helps you out a lot , have a nice day.
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Answer: a crack forms in the oceanic crust
Explanation:
Answer:
C
Explanation:
The rain forest zone contains an abundance of plant species available for pharmaceutical research and attempt at the synthesis of new drug compounds. The abundance of rainfall helps these many plant species to thrive and are available for use in the development of new drugs.
