Calculate the force of gravity on the 1.2-kg mass if it were 1.9×107 m above earth's surface (that is, if it were four earth radii from earth's center).

Force of gravity, F = 0.74 N

Mass of an object, m = 1.2 kg

Distance above earth's surface,

Mass of Earth,

Radius of Earth,

We need to find the force of gravity above the surface of Earth. It is given by :

R = r + d

R = 25370000 m

F = 0.74 N

So, the force of gravity on the object is 0.74 N. Hence, this is the required solution.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

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