A lake is 28.3 meters deep at its deepest point. The density of water in the lake is 1000 kg/m^3.
1. what is the absolute pressure at the bottom of the lake?
2. If a rock that weighs 136 N on the shore is tied to the end of a string and lowered into the water, what will be the tension within the string when the rock is completely submerged in the water? The density of the rock is know to be 2300 kg/m^3.