In the investigation shown, students tested to see how long it takes the two metal bars to heat up enough to cause the beads of wax to fall off. One student believes
the wax on the lead rod will fall off; his lab partner says the opposite. Assuming that
aluminum has a lower specific heat than lead, which students is most likely correct and why?

A. The pieces of wax on the aluminum rose will off first because of aluminums low specific heat
B. The pieces of wax on lead rod will off first because of leads high specific heat
C. All four pieces of wax will off at the same time because metals are good conductors of head
D. The metals will not heat up enough to cause the wax to fall off because they are dense

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.