While sitting on a boat floating on a small pond, you drop an anchor into the water. The anchor immediately sinks to the bottom. Does the presence of the anchor in the water cause the pond to get shallower, deeper or stay the same compared to when the anchor was on the boat? Explain your answer.

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 0.420 m3 and the tension in the cord is 1820 N. The density of water is 1000 kg/m3 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 riseto the surface. When the sphere comes to rest, what fraction of its volume will be above the surface of the water?

Assume a water stirider has a roughly circular foot of radius 0.0153 mm. The surface tension of water is 0.0700 N/m. What is the maximum possible upward force on the foot due to surface tension of the water? What is the maximum mass of this water strider so that it can keep from breaking through the water surface? The strider has six legs.

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 0.620 m3 and the tension in the cord is 2120 N. Calculate the buoyant force exerted by the water on the sphere. What is the mass of the sphere? The cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will be submerged?

You place a beaker that is two-thirds full of water (density Pw) on a laboratory scale. You then use a light-weight cord to suspend a metal object of volume VM in the water. The metal is completely submerged, and none of the water spills out of the beaker. Determine an expression for the change in reading on the scale. (Use the following as necessary: Pw, VM, and g.) ΔΕ. scale =

In the process of loading a ship, a shipping container gets dropped into the water and sinks to the bottom of the harbor. Salvage experts plan to recover the container by attaching a spherical balloon to the container and inflating it with air pumped down from the surface. The dimensions of the container are 5.00 m long, 2.35 m wide, and 3.20 m high. As the crew pumps air into the balloon, its spherical shape increases and when the radius is 1.10 m, the shipping container just begins to rise toward the surface. Determine the mass of the container. You may ignore the weight of the balloon and the air in the balloon. The density of seawater is 1027 kg/m³. 434.54 X How does the weight of the container compare to the weight of the water displaced by the container and balloon when the container starts to rise? See if you can express the weight of the water displaced in terms of the density of the seawater and the dimensions of the container and balloon. kg Additional Materials

Concrete dams are built to be much thicker at the bottom than at the top. Which of the following is the best explanation why? OA) Gravity is stronger at the bottom of the dam because it is closer to the planet. O B) It makes them more stable and less likely to topple over. OC) It is a standard practice in any type of construction. O D) The water pressure on the dam increases as it gets deeper.

Assume a water strider has a roughly circular foot of radius 0.0152 mm. The surface tension of water is 0.0700 N/m. What is the maximum possible upward force on the foot due to surface tension of the water? What is the maximum mass of this water strider so that it can keep from breaking through the water surface? The strider has six legs.

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/vobj

A submarine has a circular top hatch with a 1 m diameter. What is the force exerted on the hatch from the pressure due to the water above the hatch when the sub dives down to a depth of 200 m? Take the approximate density of sea water to be p = 1000 kg/m3 and g = 10m/s?. a) 2 .106 N b) 1,6 .10° N c) 1,3 .107° N d) not enough information 6.