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# Buoyancy & Buoyant Force Solutions Library

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61 solutions

Buoyancy & Buoyant Force

#### Q. The reason that buoyant force acts upward on a submerged object is thata. it acts in a direction to oppose gravityb. if it acted downward, nothing ...

Solved • Feb 9, 2021

Buoyancy & Buoyant Force

#### Q. The density of helium gas is 0.179 kg/m3, while the density of air at sea level is 1.29 kg/m3, A research balloon needs to carry aloft a group of s...

Solved • Feb 9, 2021

Buoyancy & Buoyant Force

#### Q. Three balls with the same volume 1.0 × 10-6 m3 are in m open tank of water that has a density (ρ) equal to 1.0 × 103 kg/m3. The balls are in the wa...

Solved • Jan 17, 2021

Buoyancy & Buoyant Force

#### Q. A balloon filled with helium gas has an average density of ρb = 0.26 kg/m3. The density of the air is about ρa = 1.23 kg/m3. The volume of the ball...

Solved • Dec 4, 2020

Buoyancy & Buoyant Force

#### Q. A block of wood is floating in a pool of water. a) Is the buoyant force acting on the block greater than, less than, or equal to the weight of the ...

Solved • Dec 4, 2020

Buoyancy & Buoyant Force

#### Q. Hot air balloons float by heating the air inside an inflatable compartment. Consider such a balloon which has an inflatable compartment of maximum ...

Solved • Nov 3, 2020

Buoyancy & Buoyant Force

#### Q. How does the volume of a completely submerged object can be compared with the volume of water displaced?

Solved • Nov 2, 2020

Buoyancy & Buoyant Force

#### Q. When boat sails from freshwater to saltwater, the boat will floatA) higher in the saltwaterB) lower in the saltwaterC) at the same level

Solved • Oct 14, 2020

Buoyancy & Buoyant Force

#### Q. The average density of the human body is 985 kg/m3, and the typical density of seawater is about 1020 kg/m3.(a) The average density of the human bo...

Solved • Oct 13, 2020

Buoyancy & Buoyant Force

#### Q. What is the tension in the string in the figure?In the figure, there is a block hanging off a string, completely immersed in ethyl alcohol.it is 10...

Solved • Oct 13, 2020

Buoyancy & Buoyant Force

#### Q. A rectangular wooden block of weight W floats with exactly one-half of its volume below the waterline.A. What is the buoyant force acting on the bl...

Solved • Jul 16, 2020

Buoyancy & Buoyant Force

#### Q. Three balls with the same radius 11 cm are in water. Ball 1 floats, with half of it exposed above the water level. Ball 2, with a density 815 kg/m3...

Solved • Jul 16, 2020

Buoyancy & Buoyant Force

#### Q. A cylindrical beaker of height 0.100 m and negligible weight is filled to the brim with a fluid of density ρ = 890 kg/m3. When the beaker is placed...

Solved • Jul 14, 2020

Buoyancy & Buoyant Force

#### Q. Hot air balloons float in the air because of the difference in density between cold and hot air. Consider a balloon in which the mass of the pilot ...

Solved • Jul 13, 2020

Buoyancy & Buoyant Force

#### Q. A 10cm×10cm×10cm woodblock with a density of 670 kg/m3 floats in water.Part A) What is the distance from the top of the block to the water if the w...

Solved • Jun 2, 2020

Buoyancy & Buoyant Force

#### Q. A 6.00cm -diameter sphere with a mass of 89.3g is neutrally buoyant in a liquid. Identify the liquid.

Solved • Jun 2, 2020

Buoyancy & Buoyant Force

#### Q. A flask of water rests on a scale that reads 100N. Then, a small block of unknown material is held completely submerged in the water. The block doe...

Solved • May 28, 2020

Buoyancy & Buoyant Force

#### Q. A flask of water rests on a scale that reads 100N. Then, a small block of unknown material is held completely submerged in the water. The block doe...

Solved • May 28, 2020

Buoyancy & Buoyant Force

#### Q. A fishbowl contains a single goldfish and is filled with water to the level indicated.At each of the designated points, rotate the given vector to ...

Solved • May 26, 2020

Buoyancy & Buoyant Force

#### Q. A flask of water rests on a scale that reads 100N. Then, a small block of unknown material is held completely submerged in the water. The block doe...

Solved • May 21, 2020

Buoyancy & Buoyant Force

#### Q. A fat slab of styrofoam, with a density of 32 kg/m3 floats on a lake. What minimum volume must the slab have so that a 40 kg boy can sit on the sla...

Solved • May 13, 2020

Buoyancy & Buoyant Force

#### Q. The buoyant force on an object submerged in a liquid depends on:a. the object's mass. b. the object's volume. c. the density of the liquid. d. the ...

Solved • May 11, 2020

Buoyancy & Buoyant Force

#### Q. Question 1: Why does an ocean liner float?A. It is made of steel, which floats.B. It is held up in the water by large Styrofoam compartments.C. The...

Solved • May 5, 2020

Buoyancy & Buoyant Force

#### Q. Suppose your body has a density of 992 kg/m3.(Part A) What fraction of you will be submerged when floating gently in freshwater (with density 1000 ...

Solved • Apr 28, 2020

Buoyancy & Buoyant Force

#### Q. A flat slab of styrofoam, with a density of 32kg/m3, floats on a lake.What minimum volume must the slab have so that a 33kg boy can sit on the slab...

Solved • Mar 11, 2020

Buoyancy & Buoyant Force

#### Q. A 10 cm × 10 cm × 10 cm wood block with a density of 700 kg/m3 floats in water. What is the distance from the top of the block to the water in cm.....

Solved • Mar 11, 2020

Buoyancy & Buoyant Force

#### Q. Archimedes principle can be used not only to determine the specific gravity of a solid using a known liquid; the reverse can be done as well. As an...

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. A cube of side length 13.0 cm and made of unknown material floats at the surface between water and oil. The oil has a density of 810 kg/m3.a) If th...

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. A 3.60-kg piece of wood (exttip{SG}{SG}SG = 0.51) floats on water. What minimum mass of lead, hung from the wood by a string, will cause it to sink?

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. A geologist finds that a Moon rock whose mass is 9.30 kg has an apparent mass of 6.30 kg when submerged in water. What is the density of the rock?

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. A slab of ice floats on a freshwater lake. What minimum volume must the slab have for a 72.0 kg woman to be able to stand on it without getting her...

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. A hollow, plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0....

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. A hydrometer consists of a spherical bulb and a cylindrical stem with a cross-section area of 0.400 cm2. The total volume of bulb and stem is 13.2 ...

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. An iron anchor with mass 35.5 kg and density 7860 kg/m3 lies on the deck of a small barge that has vertical sides and floats in a freshwater river....

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. A rock with density 2300  kg/m3 is suspended from the lower end of a light string. When the rock is in air, the tension in the string is 43.0  N. W...

Solved • Mar 5, 2019

Buoyancy & Buoyant Force

#### Q. Oil having a density of 930 kg/m3 floats on water. A rectangular block of wood 4.00 cm high and with a density of 960 kg/m3 floats partly in the oi...

Solved • Mar 4, 2019

Buoyancy & Buoyant Force

#### Q. A 1.00-kg beaker containing 2.00 kg of oil (density = 916 kg/m 3) rests on a scale. A 2.00-kg block of iron is suspended from a spring scale and is...

Solved • Mar 4, 2019

Buoyancy & Buoyant Force

#### Q. A table-tennis ball has a diameter of 3.80 cm and average density of 0.0840 g/cm 3. What force is required to hold it completely submerged under wa...

Solved • Mar 4, 2019

Buoyancy & Buoyant Force

#### Q. Suppose the vessel containing the water and the ice is full: The water level is at the vessel’s rim. What happens once the ice melts? A. The water...

Solved • Oct 6, 2017

Buoyancy & Buoyant Force

#### Q. Consider a rectangular block of ice floating in water in an open vessel. Let  a denote the height of the ice block showing above the water surface,...

Solved • Oct 6, 2017

Buoyancy & Buoyant Force

#### Q. Suppose that a volleyball A and a bowling ball B are completely submerged in water and have the same volume, as in the figure. (Of course, you woul...

Solved • Oct 6, 2017

Buoyancy & Buoyant Force

#### Q. A block of density ρ1 and volume V1 is submerged in a liquid of density ρL. A second block of density ρ2 and volume V2 is placed on top of the firs...

Solved • Oct 6, 2017

Buoyancy & Buoyant Force

#### Q. A beaker of mass 1 kg containing 2.5 kg of water rests on a scale. A 3.1 kg block of a metallic alloy of density 4900 kg/m3 is suspended from a spr...

Solved • Oct 6, 2017

Buoyancy & Buoyant Force

#### Q. A spar buoy consists of a circular cylinder, which floats with its axis oriented vertically. One such buoy has a radius of 1.00 m, a height of 2.00...

Solved • Jun 6, 2017

Buoyancy & Buoyant Force

#### Q. A barge is 10.0 m wide and 60.0 m long and has vertical sides. The bottom of the hull is 1.20 m below the water surface. What is the weight of the ...

Solved • Jun 6, 2017

Buoyancy & Buoyant Force

#### Q. A solid aluminum cylinder of length L, radius r and density pal is suspended vertically from a thin wire and slowly lowered into a still lake. Let ...

Solved • May 29, 2017

Buoyancy & Buoyant Force

#### Q. A diver wishes to recover a treasure chest she found at the bottom of the sea, 60 m below the surface. To do this, she inflates a plastic balloon t...

Solved • May 10, 2017

Buoyancy & Buoyant Force

#### Q. A diver wishes to recover a treasure chest she found at the bottom of the sea, 60 m below the surface. To do this, she inflates a plastic balloon t...

Solved • May 10, 2017

Buoyancy & Buoyant Force

#### Q. A 7.4 kg solid sphere made of metal whose density is 2300 kg/m3, is suspended by a cord. When the sphere is immersed in a liquid of unknown density...

Solved • May 4, 2017

Buoyancy & Buoyant Force

#### Q. Two wooden boxes of equal mass but different density are held beneath the surface of a large container of water. Box A has smaller average density ...

Solved • Mar 28, 2017

Buoyancy & Buoyant Force

#### Q. A woman floats in a region of the Great Salt Lake where the water is about four times saltier than the ocean and has a density of about 1130 kg/m3....

Solved • Mar 28, 2017

Buoyancy & Buoyant Force

#### Q. A cube of side s is completely submerged in a pool of fresh water. What is the weight of the displaced water when the cube is submerged?a. wwater =...

Solved • Mar 28, 2017

Buoyancy & Buoyant Force

#### Q. A cube of side s is completely submerged in a pool of fresh water. After drawing a free-body diagram, derive an algebraic expression for the net fo...

Solved • Mar 28, 2017

Buoyancy & Buoyant Force

#### Q. A rectangular block of wood, 12 cm x 18 cm x 42 cm, has a specific gravity of 0.60. What fraction of the block is submerged?(Express your answer to...

Solved • Mar 28, 2017

Buoyancy & Buoyant Force

#### Q. A rectangular block of wood, 12 cm x 18 cm x 42 cm, has a specific gravity of 0.60. Determine the buoyant force that acts on the block when it is p...

Solved • Mar 28, 2017

Buoyancy & Buoyant Force

#### Q. An ice cube floats in a glass of water. As the ice melts, what happens to the water level?a. It rises.b. It remains the samec. It falls by an amoun...

Solved • Mar 27, 2017

Buoyancy & Buoyant Force

#### Q. An object floats in water with 5/8 of its volume submerged. The ratio of the density of the object to that of water isa. 8/5.b. 5/8.c. 1/2.d. 2/1.e...

Solved • Mar 27, 2017

Buoyancy & Buoyant Force

#### Q. A toy floats in a swimming pool. The buoyant force exerted on the toy depends on the volume ofa. water in the pool.b. the pool.c. the toy under wat...

Solved • Mar 27, 2017

Buoyancy & Buoyant Force

#### Q. A boat is floating on the surface of the water when the captain throws the anchor overboard. When the anchor is thrown out of the boat, which of th...

Solved • Mar 27, 2017

Buoyancy & Buoyant Force

#### Q. An object floats on the surface of water. If the object's specific gravity is 0.7, what percentage of the object's volume is above the water-line?

Solved • Mar 27, 2017

Buoyancy & Buoyant Force

#### Q. A boat's hull displaces 1600 L of water when floating. What is the weight of the boat?

Solved • Mar 27, 2017