Aspring has a natural length of 20cm. if a 25-n force is required to keep it stretched to a length of 30 cm, how much work is required to stretch it from 20 cm to 25 cm?

The metric unit of electrical power is the watt volt ampere ohm

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.)

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone