80.A 1.0010-kg cube of aluminum is placed in a tank. Water is then added to the...

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80.A 1.00×10¹-kg cube of aluminum is placed in a tank. Water is then added to the tank until half the cube is immersed. (density of Aluminum = 2.70 × 10³ kg/m³) (a) What is the normal force on the cube? (See Fig. 9.25a.) (b) Mercury is now slowly poured into the tank until the normal force on the cube goes to zero. (See Fig. 9.25b.) How deep is the layer of mercury? (density of mercury = 13.6 x 10³ kg/m³) the 3 MAE (b) Figure 9.25 80.A 1.00×10¹-kg cube of aluminum is placed in a tank. Water is then added to the tank until half the cube is immersed. (density of Aluminum = 2.70 × 10³ kg/m³) (a) What is the normal force on the cube? (See Fig. 9.25a.) (b) Mercury is now slowly poured into the tank until the normal force on the cube goes to zero. (See Fig. 9.25b.) How deep is the layer of mercury? (density of mercury = 13.6 x 10³ kg/m³) the 3 MAE (b) Figure 9.25