A 700 g solid cube having an edge of length 10 cm floats in water. How much volume of the cube is outside the water ? Density of water - 1000 kg/m.
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Q: A partially filled bucket of water sits on a scale and it’s weight is 3.8 N. A piece of metal is…
A: The buoyant force here is FB=6.8N-3.8N=3.0N
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- You need to determine the density of a ceramic statue. If you suspend it from a spring scale, the scale reads 28.4 N. If you then lower the statue into a tub of water so that it is completely submerged, the scale reads 17.0 N. What is the density?A plastic block of mass m is floating on the water's surface. Some of the block is under the water and some is above. The block is exactly 4cm thick and 2.8cm beneath the surface of the water. If the density of the water is given as pw = 1000kg/m^3, calculate the density of the plastic block.A scientist is calculating the density of an ore sample. The scien- tist measures that the ore sample weighs 22.4 N in air. When the sample is suspended by a thin light cord and totally immersed in water, the tension in the cord is 14.2 N. What is the density of the ore sample that the scientist calculates. You can assume that any buoyant force from air is negligible.
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- A block of wood has a mass of 3.71 kg and a density of 515 kg/m3. It is to be loaded with lead (1.13 × 104 kg/m3) so that it will float in water with 0.803 of its volume submerged. What mass of lead is needed if the lead is attached to (a) the top of the wood and (b) the bottom of the wood?A plastic cube (density 973 kg/m3) has side length 1.90 cm. You drop the cube into a jar of maple syrup (density 1131 kg/m³) -you don't know why- and observe that it floats in the syrup . What percentage of the plastic cube is submerged? [Answer as a percentage with 3 sig digits, but do not enter '%' with your answer]A solid, square of floating ice measuring 5 m on a side and 0.33 meter thick floats partially submerged in water. Determine the number of penguins that can stand on the ice block without any of them getting their flippers wet? (i.e. such that the top surface of the ice block floats at water level)? Assume that the mass of each penguin is 10 kg. Round your answer to the nearest whole number of penguins. Assume the density of saltwater is 1030 kg/m3 and the density of ice is 980 kg/m^3