What happens to a falling object when the force of air resistance equals the force of gravity?
a. it shows a projectile motion
b. it reaches terminal velocity
c. it shows increasing acceleration
d. it begins to slow down

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.)

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.