A 20.0-kg lead mass rests on the bottom of a pool. (a) What is the volume of the lead? (b) What buoyant force acts on the lead? (c) Find the lead’s weight. (d) What is the normal force acting on the lead?

Q: Styrofoam has a density of 300kg/m3. What is the maximum mass that can hang without sinking from a…

A: Given,  Density = 300kg/m^3 Diameter = 60cm We need to calculate value of,  maximum mass that can…

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: A block of wood has a mass of 3.53 kg and a density of 577 kg/m³. It is to be loaded with lead (1.13…

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Q: A solid wooden sphere has its radius of 25.0 cm and it is immersed in mercury only 15.0% of volume…

A:

Q: What is the volume of the block? What is the density of the block?

A: Given data: Weight of block (W) = mg = 22.9 N Apparent weight of block in water(Wapp)= 15.9 N

Q: 23. .. In a sample of seawater taken from an oil spill, an oil layer 4.0 cm thick floats on 55 cm of…

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Q: A metal cube with volume 82 x 10-3 m3 is completely submerged under water and held in equilibrium…

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Q: A spherical weather balloon is filled with hydrogen until its radius is 2.90 m. Its total mass…

A: Given The radius of the spherical balloon is r = 2.90 m. The total mass of the balloon is m = 16…

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

A: CONCEPT: Archimedes principle states that , apparent mass loss is equal to the mass of water…

Q: A scuba diver and his gear displace 65.8 L (1L = 1000 cm3) and have a total mass of 72.8 kg. (a)…

A: Scuba driver amd his gear displaces 65.8 L. By Archimedes Principle,  buoyant force is equal to the…

Q: A spherical weather balloon is filled with hydrogen until its radius is 3.30 m. 1Its total mass…

A: (a) Calculate the Volume of the balloon V = (4/3) π r^3     = (4/3) π( 3.30 m)^3     =150.53 m^3…

Q: A 150-N object with density 870kg/m^3 loats in a liquid with density x with three-fourths of its…

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Q: A rectangular block of wood, 10.0 cm x 15.0 cm x 33.5 cm, has a specific gravity of 0.590. Determine…

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Q: What is the buoyant force of olive oil (ρ = 920 kg/m3) if the volume of the oil displaced is 0.024…

A: Given: Density (ρ ) = 920 kg/m3   Volume ( V) = 0.024 m3

Q: a) Calculate the buoyant force (in N) on a 2.90 L helium balloon.   (b) Given the mass of the rubber…

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Q: A solid block is attached to a spring scale. When the block is suspended in air, the scale reads…

A: Given, weight of the block in air Wa = 21.2 N   weight of the block in water Ww = 18.2 N     Volume…

Q: A typical piece of wood has a density of 750 kg/m?. How many 15.0 gram metal army men (or Barbies -…

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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) Calculate the buoyant force (in N) on a 2.30 L helium balloon. N (upward) (b) Given the mass of…

A: Given: volume of helium balloon, V = 2.30 L = 2.30 × 10-3 m3  mass of rubber, m = 1.20 g = 1.20 ×…

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

A: Given data: The volume of sphere is V=0.420 m3. The tension in the cord is T=1820 N. Density of…

Q: A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass…

A: Given:Radius of balloon = 3.0 m.Total mass with instrument = 15 kg

Q: The traditional method of measuring a person's body-fat ratio is to weigh them on dry land and then…

A: Given:  Density of the air before evacuation = ρ1Density of the air after evacualtion = ρ2 Volume of…

Q: A spherical weather balloon is filled with hydrogen until its radius is 4.40 m. Its total mass…

A: Given: The radius of the balloon is 4.4 m. The density of the air is 1.29 kg/m3. The mass of the…

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 150-N object of density=870kg/m3 floats in a liquid of density with three-fourths of its volume…

A: a) The buoyant force on the object= 150N (Since the body is floating, the net upward force i.e., the…

Q: A cube of unknown material is 0.200 m on each side and has a mass of 17.6 kg. It is suspended in a…

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.