As oxygen is pumped into the closed cylindrical tank, the mass flow through the tube is , where r is in kg/m 3 . Determine the density of the oxygen within the tank when t = 5 s from the time the pump...

As oxygen is pumped into the closed cylindrical tank, the mass flow through the tube is
, where r is in kg/m³. Determine the density of the oxygen within the tank when t = 5 s from the time the pump is turned on. Assume initially there is 5 kg of oxygen in the tank.