I don't see why you would cut out all communications with males. After all, they are your brothers in Islam. Unless you flirt with them that's when you should stop. It's okay to have male companions no matter what the number as long as you respect each other, keep your boundaries and be modest.
Two wires of length used on the violin, A and G are made of steel. The two wires are both 500mm long between the peg and support. The 500mm length of wire G has a mass 2.0*10^-3 Kg. The density of steel is 7.8*10^3 kgm^-3
(i) Show that the cross-sectional area of wire G is 5.1*10^-7