An 18.0-Newton wooden block slides across a horizontal wooden floor at constant velocity. Calculate the magnitude of the force of kinetic friction between the block and the floor.
[Show all work, including the equation and substitution with units.]

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.)

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

The two required components for a generator are