Suppose mass and radius of the planet are half and twice that of earth respectively. if acceleration due to gravity of the earth is 10m/s2. find acceleration due to gravity of that planet?

Explanation:

The acceleration of gravity at the surface of a planet planet is given by:

where

G is the gravitational constant

M is the mass of the planet

R is the radius of the planet

Calling M the Earth's mass and R the Earth's radius, the equation above represents the acceleration due to gravity at the Earth's surface, and so

Here we have a planet with:

M' = M/2 (mass is half that of Earth)

R' = 2R (radius is twice that of Earth)

So the acceleration due to gravity of this planet is:

number of electrons for neutral cl

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.