A rock is suspended from a scale reads 20.0 N. A beaker of water (having a density of 1000 kg/m3) is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock? A) 3.00 × 103 kg/m3 B) 1.60 × 103 kg/m3 C) 2.67 × 103 kg/m3 D) 2.50 × 103 kg/m3 E) 2.33 × 103 kg/m3

Q: Problem 2: A 12 kg wood block with density 600 kg/m³ floats in water. A piece of lead is attached to…

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Q: An mass is attached to a force spring scale and the reading is observed to be 45.0 N. When the…

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Q: An object weighs 123 N. When totally submerged in water, its apparent weight is 82.0 N. If the…

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Q: A large tree trunk is floating in the sea. The density of the sea water is 1010 kg/m3 the density of…

A: Solution:-Given thatDensity of sea water (ρs)=1010 kg/m3density of trunk (ρt)=795 kg/m3

Q: A plastic cube (density 852 kg/m°) has side length 1.22 jar of maple syrup (density 1199 kg/m3)-you…

A: GivenDensity of plastic cube, ρc=852 kg/m3Side length ,a=1.22 cm=0.0122 mDensity of maple syrup,…

Q: Two identical blocks are present. Both have a mass of 8.66 kg and a volume of 5.45 L. The first is…

A: M= 8.66kg  V= 5.45 L =  Weight in air 84.87 N  In the fluid It is 14.9N

Q: A wood block has a mass of 10.4 kg. When placed in water, 65% of the wood is underneath the surface.…

A: According to Archimedes principle Buoyant force = weight of liquid displaced

Q: A rectangular block of wood has a dimension of 20cm x 20 cm x 50cm and float in fresh water. If the…

A: Given: The size of the block is 20cm x 20 cm x 50cm. The depth inside the water is 25 cm.

Q: A cube with a side of 1 m is made from wood which has a density of 600 kg/m³. The cube floats…

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Q: A block of wood has a mass of 3.94 kg and a density of 671 kg/m3. It is to be loaded with lead (1.13…

A: The mass of the block of wood is mwood = 3.94 kg. The density of the block of wood is ρwood=671…

Q: A scale reads 86 N when a piece of aluminum is hanging from it. What does it read when it is lowered…

A: It is given that,

Q: Someone goes to lift a crate that is resting on the bottom of the pool filled with water (density of…

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Q: The figure below shows a fluid inside a cubical container of side 1 m. If the pressures inside and…

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Q: A block of wood has a mass of 3.73 kg and a density of 682 kg/m³. It is to be loaded with lead (1.13…

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Q: A log with a diameter of 30 cm and a length of 1.2 m. It is 800 kg/m3 in weight. When it's submerged…

A: Let it floats 'h' meters deep in saltwater. The density is given as , ρ = 800kg/m3 According to the…

Q: k of metal weighs 41 N in air and 19.3 N in water.   Part (a)  What is the buoyant force on the…

A: Given:- The weight of the block in the air Wair = 41 N  The weight of the block in the water Wwater…

Q: Water has a mass density of 1000 kg/m3. Humans have a mass density of approximately 1010 kg/m3. If a…

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Q: The water level in identical bowls, A and B, is exactly the same. A contains only water; B contains…

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Q: A block of wood has a mass of 3.35 kg and a density of 641 kg/m³. It is to be loaded with lead (1.13…

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Q: A 6.1 kg solid metal sphere has a density of 2600 kg/m^3. It is hung from a cord and completely…

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Q: A platinum sphere with radius 0.0107 m is totally immersed in mercury. Find the weight of the…

A: Density of an object is given by ρ = mV Volume of a sphere of radius r is given by V = 43π r3 So, m…

Q: When a block of ebony is placed in ethanol, what percentage of its volume is submerged? The density…

A: Density of ethanol (liquid) is Density of object is between  and Find:The percentage of object's…

Q: A wooden block of volume 4.55 x 10* m³ floats in water. When a small steel object of mass m = 0.250…

A: Given:-             A volume of a wooden block = 4.55×10-4 m3                           Steel object…

Q: A block of wood has a mass of 3.72 kg and a density of 571 kg/m?. It is to be loaded with lead…

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Q: A block of wood has a mass of 3.68 kg and a density of 637 kg/m3. It is to be loaded with lead (1.13…

A: Given: Mass of wooden block MB=3.68 kg Density ρBlock=637 kg/m3 Density ρlead=1.13×104 kg/m3 Volume…

Q: An object has a weight of 12 N in air. However, it apparently weighs only 7.9 N when it is…

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Q: Bird bones have air pockets in them to reduce their weight. This also gives them an average density…

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Q: A plastic sphere floats in water( p = 1000kg/m³) with 50.0% of its volume submerged. This same…

A: When submerged in water

Q: A block of wood has a mass of 3.41 kg and a density of 668 kg/m³. It is to be loaded with lead (1.13…

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Q: Bird bones have air pockets in them to reduce their weight. This also gives them an average density…

A: Answer :- Weight in air = True weight = 45 g            Apparent weight = 3.6 g…

Q: A block of birch wood floats in oil with 89.4% of its volume submerged. What is the density of the…

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Q: A block of birch wood floats in oil with 91.6% of its volume submerged. What is the density of the…

A: The objective of the question is to find the density of the oil in which a block of birch wood is…

Q: A cube of wood having an edge dimension of 18.3 cm and a density of 653 kg/m3 floats on water.…

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Q: A block of wood has a mass of 3.50 kg and a density of 642 kg/m³. It is to be loaded with lead (1.13…

A: Given, mass of the wood block, m = 3.50 kg the density of the wood, ρw = 642 kgm3 the density of the…

Q: A ball made of cork has a diameter of 20 cm and an average density of 250 g/L. What force is…

A: According to Archimedes Principle, a body when placed in a fluid experiences an upward force called…

Q: Water has density of 1000 kg /m^3.  The volume of an object is  9m^3 .  If the object is completely…

A: Given- Density of water (ρ) = 1000 kg/m3 Volume of object (v) = 9 m3

Q: A piece of metal has density 270 kg/m3and mass 0.775 kg. The metal is completely submerged in a…

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Q: A block of birch wood floats in oil with 84.1% of its volume submerged. What is the density of the…

A: Density of object is Volume of object submerged into the liquid is Find:Density of the liquid (oil).

Q: A hollow, plastic sphere is held below the surface of a freshwater lake by a cord anchored to the…

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Q: A block of wood has a mass of 3.51 kg and a density of 631 kg/m3. It is to be loaded with lead (1.13…

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Q: d is attached to (a) the top of the wood and (b) the bottom of

A: Given: mass of wood , mwood=3.5 Kg wood float in water of 0.874 of its volume submerged Density of…

Q: A block of wood has a mass of 3.44 kg and a density of 588 kg/m³. It is to be loaded with lead (1.13…

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Q: A plastic ball floats in gasoline. The weight of the ball is 40.0 N, and its volume is 10.0 L (that…

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Q: A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the…

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Q: A 0.20kg plastic ball has a density of 750 kg/m3. What is the amount of force required to hold it…

A: The volume of the plastic ball will be equal to the volume of the water displaced , which is…

Q: A block of wood has a mass of 3.68 kg and a density of 587 kg/m. It is to be loaded with lead (1.13…

A: According to Archemede's principle  Buoyant force = weight of liquid displaced

Q: Bird bones have air pockets in them to reduce their weight. This also gives them an average density…

A: mass in air = 46 g mass in water = 3.6 grams  a) Therefore, buoyant force = loss of weight  = (0.046…