Question

Giúp em vs ạ

Answer 1

Có: `F_đ=P.tan \alpha`

`<=>k[|q_1.q_2|]/[r^2]=mg. [0,035]/[\sqrt{0,3^2-0,035^2}]`

`<=>9.10^9[|q_1|^2]/[0,07^2]=10^[-5].10.[0,035]/[\sqrt{0,3^2-0,035^2}]`

`<=>|q_1|~~2,53.10^[-9](C)`

Mà `q_1=q_2`

 `=>[(q_1=q_2~~2,53.10^[-9](C)),(q_1=q_2~~2,53.10^[-9](C)):}`

Answer 2