a) A full conical water tank has height 3 m and diameter across
the top 2 m. It is leaking water at a rate of 10,000 cm^3 per
minute. How fast is the height of the water decreasing when the
volume of water is 3,000,000 cm^3 ?
b) Two planes are approaching the same air traffic control tower
at equal and constant altitude. Plane A is heading due north at 200
mph, while Plane B is heading due west at...