Hit is the action for the movement
Nabr is the answer bcoz in a chemical reaction reactants react to form new substances and according to your options NaBr should be the answer
C Bc it’s the right answers not wrong
Answer:
0.3 N
Explanation:
Electromagnetic force is F= Kq1q2/r^2, where r is the distance between charges. If r is doubled then the force will be 1/4F which is 0.3 N.