What is the force of repulsion between two charges of 1 coulomb is kept at 1 metre apart in vacuum

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

do you have a formula possibly

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000