Water has a density of approximately 1- decide if the block will sink or float. A hollow iron cube measures 5 cm on each side and has a mass of 20g. Will the iron cube sink or float? Objects will sink if their density is greater than water and will float if their density is less. For the following problem, O Float O Sink
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- A stone was hung from a light rope. When the stones are in the air,the rope tension is 39.2 N. When the rock is completely submerged in water, it stressesthe rope is 28.4 N. When the rock is completely submerged in a certain liquid,the tension in the rope is 21.5 N. What is the density of the rock and liquid?a) What volume must a (450 kg) cube have in order to float in water?b) Suppose now that the cube from part (a) has 1/3 of the volume needed to float (so it sinks into the ocean). What is the total force on the sides of the cube at a depth of (260 m) below the ocean surface? (Cubes have 6 equal-area sides)The gravitational force exerted on a solid object is 5.20 N as measured when the object is suspended from a spring scale as in Figure a. When the suspended object is submerged in water, the scale reads 3.52 N (Figure b). Find the density of the object. kg/m Scale Mg Need Help? Read
- A 13-kg piece of aluminum sits at the bottom of a lake, right next to a 13-kg piece of lead, which is much denser than aluminum. Which one has the smallest buoyant force on it? It cannot be determined without knowing their volumes. Both have the same buoyant force. the aluminum the leadA)What is the depth of the fluid? B)Find the pressure at the bottom of the container after an addition 2.55 x 10^-3m^3 of this fluid is added to the container. Assume that no fluid spills out.An object of mass 3.0 kg and volume of 0.002 m3is placed into a fluid ofdensity 1.33×103 kg.m-3. Does the object sink or float?
- A crane lifts the 21000 kg steel hull of a ship out of the water.Part ADetermine the tension in the crane's cable when the hull is submerged in the water. part B Determine the tension when the hull is completely out of the water.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 0.700 m3 and the tension in the cord is 830 N . a)Calculate the buoyant force exerted by the water on the sphere. b)What is the mass of the sphere? c)The cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will be submerged? vsub/vobjA 150-N object of density=870kg/m3 floats in a liquid of density with three-fourths of its volume underneath the surface of the fluid. a) What is the buoyant force on the object? b) What is the total volume of the object? c) What is the density of the fluid?
- A plastic sphere floats in water with 54% of its volume submerged. This same sphere floats in glycerin with 62% of its volume submerged. Determine the density of the sphere (kg/m3). Numerical Answer onlyBird bones have air pockets in them to reduce their weight. This also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 46.0 g and its apparent mass when submerged is 3.60 g (the bone is watertight). What mass of water is displaced? mass of water displaced: kg What is the volume of the bone? volume of the bone: m3 What is its average density? average density of the bone: kg/m³ about us privacy policy terms of use contact us help careersA solid object floats in water with three-fifths of its volume beneath the surface. What is the object's density? Ans: Blank 1 kg/m^3