Question

Can anyone help me out in my homework. I would love to talk about these problems ​

Answer 1

Explanation:

(b) If
`F_G = m_1g,` then

`m_1g = G(m_1m_2)/(r^2)`

Note that
`m_1` cancel out so we get

`g = G(m_2)/(r^2)`

Solving for
`m_2,` we get

`m_2 = (gr^2)/(G)`

(c) I'm not sure what the problem is asking for but here goes. As r doubles,
`F_G` becomes

`F_G = G(m_1m_2)/((2r)^2) = (1)/(4)\left(G(m_1m_2)/(r^2)\right)`