An open can is completely filled with water, to a depth of 20.6 cm. A hole is punched in the can at a height of 1.7 cm from the bottom of the can. Bernoulli's equation can be used to derive the following formula for the speed of the water flowing from the hole.
In this formula, h represents the depth of the submerged hole below the surface of the water. (a) How fast does the water initially flow out of the hole? (b) How fast does the water flow when the can is half empty?