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A freshwater lake is composed of water with an average density of...

1' Pressure Undera Lake A freshwater lake is composed of water with an average density of 1.00 X 103 g. a. What is the absolute pressure at the bottom of such a lake if its depth is 27.5 m? Explain your conclusion, b. If a submersible is lowered to the bottom of the lake, what force would be exerted on the window of this submersible if the window is circular with a 350 cm diameter? Explain your work, 2' Estimating Density A plastic sphere oats in water with exactly half of its volume submerged. When this same sphere is placed in glycerin only 40.0% of its volume is submerged. Assume the density of water to be 1.00 X 103 E. 3. Determine the density of the glycerini Explain yourwork, bt Find the density of the spheres Explain your conclusion