A) Salt is a poured off a conveyor belt and forms a cone on the ground. The radius of the cone is three times the height. Express the radius as a function of time if the salt is dumped at a rate of 4(pi) cubic meter/second.
B) A stone is thrown into a calm lake. The diameter of the circular ripple increases at a rate of 2 m/s. Express the circumference of the wave as a function of time.
B) A stone is thrown into a calm lake. The diameter of the circular ripple increases at a rate of 2 m/s. Express the circumference of the wave as a function of time.