We know magnets are related to electricity, but this set up above won't work. What is wrong with the set-up? (Or what needs to be able to happen?) Explain in complete sentences.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)