A coffee pot in the form of a circular cylinder of radius 3 in. is being filled with water flowing at a constant rate. if the water level is rising at the rate of 0.4 in./sec, what is the rate at which water is flowing into the coffee pot? (round your answer to two decimal places.)

This is a question volumetric flow rate.

In 1 second, water rises with 0.4 in.

Additionally,

Volume filled in 1 second = A*0.4, A = surface area of the circular cylinder.

Where,

A = πR^2 = π*3^2 = 9π in^2

Therefore,

Volumetric flow rate = 9π*0.4 = 11.31 in^3/s

In terms of liters/s,

1 in^3 = 0.0163871 litres

Then,

11.31 in^3/s = 11.31*0.0163871 ≈ 0.19 l/s