-A 180 kg hippo is riding a bicycle at a speed of 6.0 m/s. Out of nowhere, a chimpanzee runs out in the
hippo's path and he must slam on his brakes. If the
bicycle's brakes exert a force of 1600 N, how
long will it take to stop the bicycle? _s

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

electrical power

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.