The chart lists the masses of four balls that have the same momentum.

A 2-column table with 4 rows. The first column labeled Ball Color has entries Green, Red, Yellow, Purple. The second column labeled Mass (kilograms) has entries 0.5, 1.2, 0.9, 1.7.
Which correctly compares two of the balls?

The green ball has a lower velocity than the purple ball.
The red ball has a greater velocity than the purple ball.
The yellow ball has a higher velocity than the green ball.
The red ball has a greater velocity than the green ball.

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.

Ultra-high temperature (uht)

Because there is no air in the jar, the vibrations can not travel through the air and create sound.  (that's why there is no sound in space, there is no air)