Consider the electric force between a pair of charged particles a certain distance apart. by coulomb's law: if instead, the charge of both particles is doubled, the force is

a. unchanged
b. halved
c. doubled
d. quadrupled

the answer is d

Explanation:

from F=Q1Q2

r².

then wen both charges are doubled

F=2Q1 ×2Q2

r²

F=4Q1Q2

r²

then 4 has to be the factor multiplied by the other part of the equation for it to balance

4F=4Q1Q2

r²

so theoretically the 4 on the LHS can cancel the 4 on the RHS

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible