9- Determine the resultant force acting on the 0.7-m-high and 0.7-m-wide triangular gate shown in Figure and its line of action. Water 0.9 m 0.3 m 0.7 m 0.7 m
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- 3. A crane lifts a steel submarine (density = 7.8 x10^3 kg/m3) of mass 20,000 kg. What is the tension in the lifting cable (1) when the submarine is submerged, and (2) when it is entirely out of the water? Ans: (1) 1.7 x 10^5 N, (2) 2.0 x 10^5 N10 The top surface of a road is built in the shape of a parabola to allow water to drain away on either side. The road is 7.5 m wide and at a distance of I m from 5 cm each edge the road needs to be 5 cm high to allow drains to be fitted. -7.5 m Find the maximum height of the road.8- A Pitot-static probe connected to a water manometer is used to measure the velocity of air. If the deflection (the vertical distance between the fluid levels in the two arms) is 5.5 cm, determine the air Air velocity. Take the density of air to be 1.16 kg/m probe Pitot-static +5.5 cm Manometer
- 55. Subject :- Physics10) A 22 Kg rock is resting on the bottom of a lake and must be lifted out of the way. The rock has a density of 2187 kg/m³. What force is needed to lift the rock while underwater? Fuet = Fw (m g) – R, v.g)Tovich 40 The form is used to cast a concrete wall having a width of 4 m. (Figure 1) Figure 1 of 1 Part A Determine the equivalent resultant force the wet concrete exerts on the form AB # the pressure distribution due to the concrete can be approximated as shown Express your answer to three significant figures and include the appropriate urits. HÅ FR-85.34 Submit Previous Answers Request Acer Part B N X Incorrect; Try Again; 5 attempts remaining - 2.40 m ? Specify the location of the resultant force, measured from point B. Express your answer to three significant figures and include the appropriate units. PPearson 9 of 11