At a given instant in time, a 6-kg rock that has been dropped from a high cliff experiences a force of air resistance of 15 n. what are the magnitude and direction of the acceleration of the rock? (do not forget the gravitational force! ) round the final answer to two decimal places.

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

What is an aquifer for science class