Aconducting bar of length , moves to the right on two frictionless rails. a uniform magnetic field directed into the page has a magnitude of 0.300 t. assume r = 9.00 ohm and , length (l) = 0.350 m. at what constant speed should the bar move to produce an 8.50- ma current in the resistor?

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

Difference between series and parallel circuits