Question

Question #47a60

Answer 1

Newton's universal law of gravitation describes the gravitational attraction between two things with mass.

Explanation:

Mathematically, you can write it:

`F_g = G {m M}/{r^2}`
and `G = 6.674 times 10^{-11} N · (m/{kg})^2`

Where `G` is a constant, `m` is the mass of one object, `M` is the mass of another object, and `r` is the distance between them.

Answer 2

See explanation..

Explanation:

Generally this law relates mass and Gravitation

Its formula is

`color(brown)(F=G(m_1m_2)/(r^2)`

And,here are the definitions of the variables

`color(blue)("F=Gravitational force between the two objects"`

`color(blue)("G=Gravitational constant="6.67*10-11Nm^2/(kg^2)`

`color(blue)(m_1"=Mass of first object"`

`color(blue)(m_2"=Mass of second object"`

`color(blue)("r=Distance between the centres of the objects"`

Note: `"N=Newton"` `("It is an unit for energy")`

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