What label should Mateo place in the marked cell? a.) uses electrical energy

b.) provides electrical energy

c.) measures electric current

d.) controls electric current

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.

It maybe because uranus is made of gas but uranus has a solid core in the middle