A square loop with sides of length L has total resistance R. It is being pulled with speed out of a region, indicated in gray, where there is a uniform magnetic field B pointing out the page. At time t, the leftmost corner of the loop is a distance x inside the field. (a) Determine the magnetic flux through the loop, as a function of t.
(b) What is the magnitude and direction of the current that is induced in the loop?
(c) What force do you need to apply to the loop so that it moves with constant speed v?
(d) How much work is required to move the loop from x- L/2 to x 0?

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow

At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?

Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.