Calculate the acceleration due to gravity on neptune. the radius of neptune is about 2.21 x 107 m and its mass is 1.03 x 1026 kg. m/s2 (downward)

To solve the problem we will apply the concept given by Newton for the definition of the gravity of a planet, for which he defines that this is proportional to the product of the mass of the planet by the universal gravitational constant, and inversely proportional to the square of the radius of the planet. Mathematically this can be described as

Here,

G = Gravitational Universal Constant

M = Mass of the planet, at this case Neptune

R = Radius of the planet, at this case Neptune

Replacing we have that

Therefore the acceleration due to gravity on Neptune is

their crystal patterns have been disrupted by stress

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.