Solving a first-order linear initial value problem to determine the concentration of salt in a tank

Solving an initial value problem to find the amount of salt in a tank with salt water flowing in and out

Explaining how to use integration to calculate the work done pumping water out of a tank

Explaining how to use integration to calculate the work done pumping water out of a tank

Calculating the work done pumping water out of a tank that is an upright cylinder

Calculating the work done pumping water out of a rectangular tank

Calculating the work done pumping water out of a tank shaped like a trough

Calculating the work done pumping water out of a tank shaped like a trough

Calculating the work done pumping water out of a cone-shaped tank