A drag racer starts her car from rest and accelerates at 8.6 m/s² for the entire distance

of 639 m.

How long did it take the car to travel this

distance?

Answer in units of s.

When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.