Gate AB in Fig. P2.62 is 15 ft long and 8 ft wide into the paper and is hinged at B with a stop at A. The water is at 20°C. The gate is 1-in-thick steel, SG = 7.85. Compute the water level h for which the gate will start to fall. 15 ft Pulley 10,000 lb 60° B h Water
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- 6. A solid aluminum bar weighs 89 N in air. a. What is its volume? b. If it is suspended from a rope and totally submerged in water, what is the tension in the rope?(1) a. Gold is sold by the troy ounce (31.103 g). What is the volume (in cm3) of 2 troy ounces of pure gold? cm3 b. Mercury is commonly supplied in flasks containing 34.5 kg (about 76 Ib). What is the volume in liters of this much mercury? C. A straightforward method of finding the density of an object is to measure its mass and then measure its volume by submerging it in a graduated cylinder. What is the density (in g/cm?) of a 200 g rock that displaces 81.0 cm³ of water? (Note that the accuracy and practical applications of this technique are more limited than a variety of others that are based on Archimedes' principle.) g/cm3A container is filled to a depth of 18.0 cm with water. On top of the water floats a 29.0-cm-thick layer of oil with specific gravity 0.600. What is the absolute pressure at the bottom of the container? ?Pa
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