4. The large container shown above is filled with a liquid of density 1.1 x 10 kg/m A small hole of area 2.5 x 10 m is opened in the side of the beaker a distance below the liquid surface, which allows a stream of liquid to flow through the hole and into a beaker placed to the right of the container. At the same time, liquid is also added to the container at an appropriate rate so that fi remains constant. The amount of liquid collected in the beaker in 2.0 minutes is 7.2 x 10 m. (a) Calculate the volume rate of flow of liquid from the hole in m'/s. (b) Calculate the speed of the liquid as it exits from the hole. (c) Calculate the height of liquid needed above the hole to cause the speed you determined in pant (b).