Fill in the blanks:
1. any part of a force that does not act in the direction of an object's motion does no [blank] on an object
2. You calculate work by multiplying the force acting in the direction of [blank] by the distance the object moves

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.

Carbon dioxide because it consists of one type of molecule.