A salmon jumps 2.0 m vertically and gains a certain amount of potential energy. A secondsalmon of half the mass jumps the same vertical height. Compared to the first salmon, thesecond salmon’s potential energy gain is? a. one-half as great b. twice as great c. the same d. 4 times as great

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above

Which inventor was often called the lady edison