As time progresses a capacitor hooked up to a battery begins to act like a. a resistor draining power from the battery b. Another battery but working against the first battery c. Another battery aiding the first battery d. An inverse resistor giving power to the system

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.