Homework Answers
Density of the wood is
equal to 498.5kg/m3 (that is half the density
of water) . Ans.
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A 50 cm thick raft with dimensions 8m x 10ml of the thickness of the raft...
A square raft has dimensions 2.161m x 2.161m x 30cm. When a 91.7kg chest is...
A square raft has dimensions 2.161m x 2.161m x 30cm. When a
91.7kg chest is placed on the raft, the raft floats with its top
surface 20cm above the water(10 cm is under water). The density of
the water is 1033 kg/m^3
What is the mass of just the raft?
How strong it the buoyant force being exerted by the
water on the raft?
How many crates can the raft hold (including the on on
it)?
30m I poom
110 points] A U-tube of uniform cross-sectional area A is open both ends. It contains waterand...
110 points] A U-tube of uniform cross-sectional area A is open both ends. It contains waterand oil. The reference level y =0 the interface between the oil and water. The water surface is y at 50 mm above the reference level, and the oil surface is y2 65 mm above the reference level. What is the density of the oil? Oil 65 m 50 min Waler Density = kg / m3 2. [12 points] A 30-kg block is floating on...
Solve the following problems please A container is filled to a depth of 19.0 cm with...
Solve
the following problems please
A container is filled to a depth of 19.0 cm with water. On top of the water floats a 35.0-cm-thick layer of oil with specific gravity 0.900. What is the absolute pressure at the bottom of the container? A cube of wood having an edge dimension of 18.9 cm and a density of 645 kg/m3 floats on water, What is the distance from the horizontal top surface of the cube to the water level? what...
A cube of wood having an edge dimension of 22.1 cm and a density of 651...
A cube of wood having an edge dimension of 22.1 cm and a density of 651 kg/m^3 floats on water. What is the distance from the horizontal top surface of the cube to the water level? If a block is floating, the buoyant force must equal the weight of the block cm What mass of lead should be placed on the cube so that the top of the cube will be just level with the water surface? The block is...
A board that is 20.0 cm wide, 5.00 cm thick, and 3.00 m long has a...
A board that is 20.0 cm wide, 5.00 cm thick, and 3.00 m long has a density 379 kg/m3. The board is floating partially submerged in water of density 1000 kg/m3. What fraction of the volume of the board is above the surface of the water? 0.379 0.200 zero 0.621 The answer depends on which edge of the board is vertical. A 3.1-kg solid sphere, made of metal whose density is 2500 kg/m3, is suspended by a cord. When the...
A square plate having dimensions of 8 cm x 8 cm x 2 mm is hung...
A square plate having dimensions of 8 cm x 8 cm x 2 mm is hung from one corner and lowered slowly to a water container where its hypotenuse is touching the surface. If Surface tension of water is 7.2 x 10^-2 Nm^-2 and density is 1000 Kgm^-3. Find the Apparent weight loss of the plate? Surface tension= 7.2 x 10^-2 Nm^-1 and the contact angle is zero.
A cube of wood 20cm on each side floats in water so that 7cm is above...
A cube of wood 20cm on each side floats in water so that 7cm is above the surface of the water and 13cm is below. a)What is the density of the wood? ( You must justify your answer) b) How much force would have to be exerted on the wood to submerge it? c) what volume of lead mass has to be placed on top of the block of wood so that it will just be totally submerged? d)Suppose a...
A cubical block of wood, 11.0 cm on a side, floats at the interface between oil...
A cubical block of wood, 11.0 cm on a side, floats at the interface between oil and water with its lower surface 2.40cm below the interface (the figure (Figure 1)). The density of the oil is 790 kg/m3. What is the mass of the block? What is the density of the block?
A cube of wood floats on the surface of a swimming pool. Each side of the...
A cube of wood floats on the surface of a swimming pool. Each side of the cube is 0.25 cm long and the cube has a density of 750 kg m-3 . a.) What fraction of the cube is submerged? b.) If the cube is replaced by one made from another material, what is the maximum allowed density for the new cube to float? c.) The pressure at the bottom of the deep end of the pool is 1.4 x...
A 61 kg survivor of a cruise line disaster rests atop a block of styrofoam insulation,...
A 61 kg survivor of a cruise line disaster rests atop a block of styrofoam insulation, using it as a raft. The styrofoam has dimensions 2.00m x 2.00m x 0.0880m. The bottom .025m of the raft is submerged. (1) Write Newton's second law for the system in one dimension, using B for buoyancy, w for the weight of the survivor, and wr for the weight of the raft. (Set a = 0. Solve for Fy, the y- component of the...
A square raft has dimensions 2.161m x 2.161m x 30cm. When a
91.7kg chest is placed on the raft, the raft floats with its top
surface 20cm above the water(10 cm is under water). The density of
the water is 1033 kg/m^3
What is the mass of just the raft?
How strong it the buoyant force being exerted by the
water on the raft?
How many crates can the raft hold (including the on on
it)?
30m I poom
110 points] A U-tube of uniform cross-sectional area A is open both ends. It contains waterand oil. The reference level y =0 the interface between the oil and water. The water surface is y at 50 mm above the reference level, and the oil surface is y2 65 mm above the reference level. What is the density of the oil? Oil 65 m 50 min Waler Density = kg / m3 2. [12 points] A 30-kg block is floating on...
Solve
the following problems please
A container is filled to a depth of 19.0 cm with water. On top of the water floats a 35.0-cm-thick layer of oil with specific gravity 0.900. What is the absolute pressure at the bottom of the container? A cube of wood having an edge dimension of 18.9 cm and a density of 645 kg/m3 floats on water, What is the distance from the horizontal top surface of the cube to the water level? what...
A cube of wood having an edge dimension of 22.1 cm and a density of 651 kg/m^3 floats on water. What is the distance from the horizontal top surface of the cube to the water level? If a block is floating, the buoyant force must equal the weight of the block cm What mass of lead should be placed on the cube so that the top of the cube will be just level with the water surface? The block is...
A cubical block of wood, 11.0 cm on a side, floats at the interface between oil and water with its lower surface 2.40cm below the interface (the figure (Figure 1)). The density of the oil is 790 kg/m3. What is the mass of the block? What is the density of the block?
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