3) How deep does a sedimentation tank need to be to remove sand (diameter = 0.6 mm, density= 2.65 g/cm³) from water flowing at 30 cm/s. The length of the tank is 6 m. Viscosity of water is 1×10³ Pa.s Density of water is 1 g/cm³ g=9.81 m/s²
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- 4. A solid cylinder (radius= 17.0 cm, height = 15.5 cm) has a mass of 11.96 kg. This cylinder is floating in water. Then oil (density=725 kg/m³) is poured on top of the water until the situation shown in the drawing results. How much of the height of the cylinder is in the oil? cm 7 Q 1 Z 2 W S X H command # 3 ! ZEE!!! ZEE!! 23 E D с C 4 R F er de V % 5 G Search or type URL T 211332 1332 jj1332 jj1332 jj1332 jj134 G 6 B ----Water MacBook Pro Y H Oil 7 N 11332 jj1332 jj1332 132 1332 jj1332 2 1-2 jj1332 jj1332 jj1332 jjl332 jjis U J ☆ * 8 20 M I jj1332 jj1332 jj1332 jj1332 jjl2 → ( 9 1332 1332 j K مو < O < I ) -O L command P ^ | y - .... : option { [ ? + 11 1 = I } 1What radius needle should be used to inject a volume of 497 cm3 of a solution into a patient in 32 min? Assume the length of the needle is 2.5 cm and that the solution is elevated 1.0 m above the point of injection. Further, assume the viscosity and density of the solution are those of pure water, and that the pressure inside the vein is atmospheric. (The density of water is 1.00 ✕ 103 kg/m3.) ?mm98. A rectangular block of wood floats in fresh water (density = 1000 kg/m³) with its lower 10 cm submerged. What distance (in cm) will be submerged when it floats in seawater (density = 1030 kg/m³)?
- 6. A piece of cork has a mass of 550 grams. An 18 N sinker is attached to it. With only the sinker in water, the cork and sinker weigh 20.7 N, with the sinker and cork both in water, they weigh 0.9 N. When the sinker was immersed in alcohol, it weighed 15.7 N. Determine the density of the cork in kg/m³? What is the specific gravity and density of the sinker? Determine the density of the alcohol in gm/ml.2) 35 g of iron pellets are added to a graduated cylinder containing 50 ml of water. The water level rises to the 52 ml mark. a) what is the iron's density in g /cm? b) what is the density in kg/m³6) A liquid is flowing through a 57.0 cm ^ 2 The pipe is then reduced to 16.5 cm ^ 2 speed of the liquid is measured to be 6.05 m/s . What was the speed of the liquid in the larger pipe?
- A sphere of density P, = 600 kg is held by a cable onto the bottom of a pool. The m pool is filled with an unknown liquid. The volume of the sphere is 2.00m. The tension in the cable is 4000N. What is the density of the unknown liquid?6. A spherically shaped balloon has a radius of 12.5 m, and is filled with helium. How much extra mass can a cargo lift, assuming that the skin and the cargo of the balloon have a mass of 800 kg? Neglect the buoyant force on the cargo volume itself.(The density of air is 1.29 kg/m³ and the density of helium is 0.179 kg/m³) kgA yoyo of radius R and mass M is released from rest with the string vertical and its top end fixed up a support as shown below. How fast is the center of mass of the yoyo moving when it has fallen a distance of 47 cm. Ignore the mass of the string and express your answer if m/s
- 9. A chunk of iron with a mass of 400.0g in air is found to have an apparent mass of 354g when completely submerged in an unknown liquid. (I) What mass of the liquid does the iron displace? (II) What is the density of the fluid? Density of iron = 7.8 g/cm.10. Water flows at a rate of 730.0 liters/min through a horizontal 5.80-cm diameter pipe under a pressure of 6.50 x105 Pa. At one point, calcium deposits reduce the cross-sectional area of the pipe to 8.50 cm?. What is the pressure at this point? Pa1a) Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 4.80 cm ✕ 14.0 cm ✕ 23.0 cm. (The density of gold is 19.3 ✕ 103 kg/m3.) kg = 1b) The four tires of an automobile are inflated to a gauge pressure of 2.1 105 Pa. Each tire has an area of 0.024 m2 in contact with the ground. Determine the weight of the automobile. N =