Acharge of +2 mc is at its origin. a charge of -4 mc is at x=2 on x axis.

a. what is the value of electric field at x= -4.828

b. what is the value of electric field at x= -2m

c. what is the value of potential at x= -2cm

Wavelength divides in half and speed stays the same.

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.

Ithink c because you have to work to become goid