Question 8 A plate in the form of an equilateral triangle with sides of 4 ft is submerged vertically in water with the water surface level with the top of the triangle. Find the fluid force against the surface. Use 62.4 Ib/ft for the weight density of the water. Round the answer to one decimal place. The fluid force= Ib
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- 3. As shown in the figure, a container has a vertical tube, whose inner radius is 32.00 mm, connected to it at its side. An unknown liquid reaches level A in the container and level B in the tube-level A being 5.0 cm higher than level B. The liquid supports a 20.0-cm high column of oil, between levels B and C, whose density is 460 kg/m3. What is the density of the unknown liquid? 20.0 cm 50 cm V a with arms of unequal areas,A partially filled bucket of water sits on a scale and it’s weight is 3.8 N. A piece of metal is suspended from a thread and completely immersed in the bucket ( but does not touch the bottom). The scale now reads 6.8 N. Find the volume of the metal.An incompressible box is completely submerged in water at a depth of 60m. The volume of the box is 8L and it has a mass of 30 kg. The buoyant force on the box is 70N.. If the box is brought to a depth of 90m, stae what the mass of the box ,volume of the box and buoyant force on the box will be? Choose one correct answer with the correct units of measure. A. Mass = 70kg Volume = 8L Buoyant force = 30N B. Mass = 30kg Volume = 8 m3 Bouyant force = 70 pound C. Mass = 30kg volume = 8L Buoyant force =70N D. Mass = 8 kg Volume = 30L Buoyant force = 70N
- When an object of mass 14.5 kg is submerged in water, a scale reads only 13.4 kg. Find the volume of the object knowing that the water density is 1 × 10³ kg/m³ . a) 1.1 x 10-3 m³ b) 2.1 x 10-3 m³ c) 3.1 x 10-3 m3 d) 4.1 x 10-3 m3 O 1. b О 2. с O 3. None 4. O5. d. O O O 0xzvsdzfserfasefawsdawefsefdA box-shaped piece of concrete measures 8 ft by 6 ft by 0.4 ft. (Enter your answers in Ib.) (a) What is its weight? Ib (b) Find the buoyant force that acts on it when it is submerged in water. (Enter the magnitude.) Ib (c) What is the net force on the concrete piece when it is underwater? (Enter the magnitude.) Ib
- A scale reads 100 N when a piece of aluminum is hanging from it. What does it read when it is lowered so that the aluminum is submerged in water? The mass density of aluminum is 2700 kg/m^3. Be careful, you are given mass density instead of weight density, and we are using SI units.i need answer in problem sigfigA force of 120.0 N is applied to 2.000 cm diameter piston, which is in contact with a closed container of water (density of water = 1,000 kg/m3). A second piston, with a diameter of 25.00 cm and at the same height as the first piston, is also in contact with the water. What force does the water pressure exert on the second piston? Multiple Choice 10,450 N. 8,450 N. 18,750 N. 9,150 N. 9,500 N.Vb = D A D Vmax = m³ c) What is the depth D below the waterline? W max = b) What is the volume of water displaced when the barge is empty? This will be in terms of D. m h Water. line m³ 1) A flat bottomed barge in the water has a base with area A 4000 m². The height, h, of the barge is 2 m. and the distance D is the depth of the barge below the i water line. The mass of the barge when empty is m, = 1,000,000 kg. N a) What is the weight of the empty barge? 9,800,000 mg = 1,000,000 (9.8) W₁ = The theoretical maximum mass of the barge, including its load, will be when the top of the barge is at the water level. d) What is the maximum volume of water displaced, and the mass of this much water? e) What is the theoretical maximum weight of the barge? N Illmax = - 16 hour!! (3) kg 525555, 004 Hae ad 11.
- 11.A steel cube 85.0 mm on a side weighs 51.5 N. We want to hold the cube in equilibrium under water by attaching a light foam buoy to it. Required If the foam weighs 470.0 N/m3, what is the minimum required volume of the buoy? Provide answer in cubic meters, to the nearest 1000th. 2. A cube has side dimensions of 15.30 in. It is made of steel having a specific weight of 439 lb/ft3. Required What force is required to hold it in equilibrium under fresh water? Provide answer in lb, to the nearest 10th.