A cube-shaped block is fully submerged in a liquid that has a
mass density of
1.0 kg/m3. The sides of the block are 0.50 m long. What
is the buoyant force of the water on the block?
1. 1.2 N
2. 1.4 N
3. 1.1 N
4. 1.3 N
A cube-shaped block is fully submerged in a liquid that has a mass density of 1.0...
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...
3. Archimedes' Principle states that the buoyant force on an object partially or fully submerged in a fluid is equal to the weight of the fluid that the object displaces. For an object of density po floating partly submerged in a fluid of density pf, the buoyant force is given by F P19 SA(y)dy, where g is the acceleration due to gravity and A(y) is the area of a typical cross-section of the object. The weight of the object is...
An object with a density of 1.2 kg/liters and a mass of 16.4 kg is fully submerged in seawater (density= 1029 kg/m^3 ). Calculate the net-force acting on the object (i.e. the sum of the buoyant force pointing up and the gravitational force pointing down). Assume that a positive net-force means the force points up and thus the object is positively buoyant.
A block of wood of mass 2kg floats in water, and it is noted
that volume is 3/4 is submerged. density of water 1000
kg/m3.
a) What is the buoyant force of the block? hint:
V is volume and g is 9.81 m/s2.
b) What is the density of the block?
Three objects are placed in water. Cube A (0.5 m on a side) has a mass of 2.0 kg. Cube B (1.2 m on a side) has a mass of 4.0 kg. Cube C (2.0 m on a side) has a mass of 1.0 kg. Which cubes float? Which cube experiences the greatest buoyant force? Which experiences the least buoyant force? Show your work and/or explain your reasoning. (20 pts, 10 for floating, 10 for buoyant force)
1. ***present all the calculations*** Part I: The density of seawater is approximately 1.027g / cm3 and the ice density 0.93g / cm3. United Nations Iceberg (iceberg), generally has a mass of 150,000 metric tons (1 metric ton = 1000kg). Calculation (a) The buoyant force exerted by the water on the "iceberg", (b) the volume of the iceberg above sea level, (c) the volume fraction above sea level. Part II: A metal bucket with a height of 0.700 m and...
An ice cube (density = 900[kg/m3]) with a side length of 2.54[cm] is held by a person so that it is completely submerged within a cupful of water (density = 1000[kg/m3]). What is the buoyant force on the ice cube?
#2
1. A block of wood has a mass of 25 kg and a density of 650 kg/m'. You are holding it under water by pushing downward. a) What is the volume of the block of wood? b) What is the buoyant force on it? c) What is the magnitude of the downward force you are exerting to hold the block under water? 2. In the diagram, the hinge is frictionless and the system is in equilibrium. The uniform beam...
2. 95% of a wood block is submerged in water (density= 1000 kg/m). A layer of oil with a density of 880 kg/m' is now poured on top, to a depth that more than covers the block, as shown. Find the resulting new volume fraction submerged in water, V(in water) / V(block). Hints: (i) You get two buoyant forces - one for each liquid; Also note that (ii) volume, V(block) = V(in water) + V(in oil). d=880 kg/m² V =...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...