A solid which has density of 2.7 g/cms has a cavity inside. When it is weighed in air, it is found to have a mass of 312 g and when weighed in water, its mass appears to be 160 g. What is the volume of the hidden cavity?

The two arms of a U-tube are not identical, one having 6 times the diameter of the other. A cork in the narrow arm requires a force of F1 = 79 N to remove it. The tube is filled with water and the wide arm is fitted with a piston with area A2. What is the minimum force, F2, that must be applied to the piston to push the cork out?

A container has a large cylindrical lower part with a long thin cylindrical neck open at the top. The lower part of the container holds 19.5 m3 of water and the surface area of the bottom of the container is 7.80 m2. The height of the lower part of the container is 2.50 m, and the neck contains a column of water 8.50 m high. The total volume of the column of water in the neck is 0.200 m3. What is the magnitude of the force exerted by the water on the bottom of the container? in MN

1. A U-tube contains liquid of unknown density. An oil of density 780 kg/m³ is poured into one arm of the tube until the oil column is 11.5 cm high. The oil-air interface is then 5.0 cm above the liguid level in the other arm of the U-tube. Find the density of the liquid. kg/m3 0741 na741 na41na74na74 741 na741 na74 n741 na741 741 na741 na741 na7 0741 na741 n

To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water. She finds that the specimen weighs twice as much in air as it does in water. The density of the solid part of the specimen is 2.02 × 103 kg/m3. What fraction of the specimen’s apparent volume is solid?

An​ outdoor, rectangular pool on campus is 4.5 meters​ [m] in width and 7.5 meters​ [m] in length. You may assume the depth of the pool is constant. If the pool is filled with pure​ water, the total pressure probe at the bottom of the pool reads 16.5 ​pound-force per square inch​ [psi]. What is the volume of the water in the pool in units of kiloliters​ [kL]?     Length Force Mass Pressure 1 ft=12 in 1 N=0.225 lbf 1 kg=2.205 lbm 1 atm=101325 Pa 1 in=2.54 cm   1 slug​ = 14.5939 kg 1 atm=14.7 psi 1 m=3.28 ft   Density of water=1000 ​kg/m3 Surface pressure=1 atm

A container has a large cylindrical lower part with a long thin cylindrical neck open at the top. The lower part of the container holds 22.2 m3 of water and the surface area of the bottom of the container is 8.90 m2. The height of the lower part of the container is 2.50 m, and the neck contains a column of water 8.50 m high. The total volume of the column of water in the neck is 0.200 m3. What is the magnitude of the force exerted by the water on the bottom of the container? _____ MN

Problem 1: Suppose you have a coffee mug with a circular cross section and vertical sides. What is its inside radius if it holds 375 g of coffee when filled to a depth of 7.5 cm? Assume coffee has the same density as water, 10³ kg/m³.

A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.3 m long, 2.9 m wide, and 2.9 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When the balloon's radius is 1.6 m, the shipping container just begins to rise towards the surface. What is the mass of the container? Ignore the mass of the balloon and the air within it. Do not neglect the buoyant force exerted on the shipping container by the water. The density of seawater is 1025 kg/m³. Number i Units

A piece of lead has the shape of a hockey puck, with a diameter of 7.5 cm and a height of 2.3 cm . If the puck is placed in a mercury bath, it floats.    How deep below the surface of the mercury is the bottom of the lead puck?