What advantages does a wheel provide?

Modify the equation fδt=δ (mv) to find the force of friction.

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.)

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?