Imagine hanging a 120 gm mass at the 10 cm mark of the meterstick (Masses stated in this experiment include the mass of the clip and hanger). Adjust the position of the fulcrum until the meter stick is balanced (at the 26 cm mark). The meterstick is in equilibrium because the torque due to the hanging weight is balanced by an opposite torque due to weight of the meter stick. a. Weight of the 100 gm mass plus clip and hanger = N (Force)
b. Wight of meter stick =

By dividing you can find the answer

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

The answer is b hope this

The magnets are probably damaged or there not strong enough to attached to the refrigerator