S When a -3.72*10^-4 C charge moves from point A to point B, its electric potential energy increases by 0.218 J. What is the potential difference between A and B? Include the correct sign, + or -. (Unit = V)

Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).