You push a piece of wood under the surface of a swimming pool. After it is completely submerged, you keep pushing it deeper and deeper. As you do this, what will happen to the buoyant force on it? Will the force keep increasing, stay the same, or decrease? Why?
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You push a piece of wood under the surface of a swimming
pool. After it is completely submerged, you keep pushing it deeper and
deeper. As you do this, what will happen to the buoyant force on it? Will
the force keep increasing, stay the same, or decrease? Why?
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- A 10-kg piece of aluminum (ρ = 2.70 x 10^3 kg/m^3) sits at the bottom of a pool, right next to a 10-kg piece of lead (ρ = 11.3 x 10^3 kg/m^3). Thinking in terms of their volumes (V), which one must have the greater buoyant force on it? A) the aluminum B) the lead C) Both have the same buoyant force. D) It cannot be determined without knowing their exact volumes.Suppose your body has a density of 988 kg/m3. part a) What fraction of you will be submerged when floating gently in freshwater (with density 1000 kg/m3)? (hint: vsf/vo) part b) What fraction of you will be submerged when floating gently in salt water (with a density of 1027 kg/m3)?An iceberg that floats with 88.5% of its volume submerged in seawater of density 1060 kg/m^3. if the iceberg were to drift to a region where the seawater was less salty and only had a density of 1020 kg/m^3, how much of the iceberg would be submerged?
- Over the summer I decide to supplement my income educational offerings by building a glass-bottomed boat to drive around Lake Michigan. The glass floor is a rectangle, two meter by three meters, and that floor lies one meter below the water's surface. What additional force pushes up on the glass floor due to the increased gauge pressure underwater? a 10,000 N b 40,000 N c 60,000 N d 120,000NA 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.What is the buoyant force of an object with a volume of 0.5 m3 that is fully submerged in water? The density of water is 1000 kg/m3. O 500 N O 420 N 4,900 N 9,800 N
- Suppose a 200-kg block of wood with volume 0.5 m3 is placed in a liquid of density 500 kgm3. What will happen to the block of wood? All of these are possible. It will sink. It will float with no part of it above the surface of liquid. It will be partially submerged.A metal has mass of 8 kg when the mental is hanging from a spring scale and the totally submerged in water, the scale reeds 3.30kg. What is the density of the mental? (water density=1000kg/m^3) (A)2.80x10^3kg/m^3 (B)5.80x10^3kg/m^3 (C)1.70x10^3kg/m^3 (D)3.30x10^3kg/m^3If the human body has an average density of 971 kg/m3, what fraction of a person is submerged when floating gently in fresh water?
- An electrical short cuts off all power to a submersible diving vehicle when it is a distance of 26 m below the surface of the ocean. The crew must push out a hatch of area 0.55 m2 and weight 350 N on the bottom to escape. a)If the pressure inside is 1.0 atm, what downward force must the crew exert on the hatch to open it? Express your answer in newtons.When an object with a volume of 4 x 10^-3 m^3 is completely submerged in water ( p water = 1000 kg/m^3), the buoyant force acting on the object will be?help A concrete block with a density of 6550 will sink in water, but a rope suspends it underwater underwater (that is, its completely underwater, not touching the bottom of the lake, and isn't moving. It measures 63 cm x 20 cm x 15 cm, and has a density of 6550 kg/m3. The density of water is 1000 kg/m3 Find the tension in the rope. Hint: Buoyancy problem - similar to the last problem, but add a rope pulling up.