QI(a) Consider the pressure and force acting on the dam retaining a reservoir of water (Figure Q1(a)). Suppose the dam is 500-m wide and the water is 80.0-m deep at the dam, as illustrated below. ) Which of the following substances are fluids at room temperature and atmospheric pressure: air, mercury, water, glass? (ii) Find the average pressure on the dam due to the water? (iii) Calculate the force exerted against the dam. FIGURE Q1(a) 010)

QI(a) Consider the pressure and force acting on the dam retaining a reservoir of water (Figure Q1(a)). Suppose the dam is 500-m wide and the water is 80.0-m deep at the dam, as illustrated below. ) Which of the following substances are fluids at room temperature and atmospheric pressure: air, mercury, water, glass? (ii) Find the average pressure on the dam due to the water? (iii) Calculate the force exerted against the dam. FIGURE Q1(a) 010)