Which of the following describes the measure of current?
a. the quality of the charge flow
b. the rate at which charge flows
c. the ability for something to have a charge flow
d. the potential for a charge to flow

Apiano tuner uses a tuner to create a tone of 5.00 x 10² hz. when a key on the piano is struck he hears 5 beats per second. what is a possible frequency of vibration for the piano string? 2500 hz 1300 hz 605 hz 495 hz

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.