A sphere completely submerged in water is tethered to the bottom with a string. The tension in the string is one-fourth the weight of the sphere. What is the density of the sphere?

The gravitational force exerted on a solid object is 5 N. When the object is suspended from a spring scale and submerged in water, the scale reads 3.5 N. Find the density of the object.

A platinum sphere with radius 0.0179 m is totally immersed in mercury. Find the weight of the sphere, the buoyant force acting on the sphere, and the sphere's apparent weight. The densities of platinum and mercury are 2.14 x 10“ kg/m³ and 1.36 x 10ª kg/m³, respectively. weight: N buoyant force: N apparent weight:

A ball was submerged in water and held in place. When released, the ball has upward acceleration of 3.5 m/s^2. What is the density of the ball?

A bottle has a neck of diameter 3.5 cm  and a base of 13 cm. It is completely filled with a fluid and the fluid in the neck is struck with a force of 125 N. What force is exerted on the base?

A block of wood, with density 780.0 kg/m³, has a cubic shape with sides 0.214 m long. A cord of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water. What is the mass of the lead? Density of water is 1.00 × 103 kg/m³ and density of lead is 11.3 × 103 kg/m³. 2.16 kg

A life preserver is manufactured to support a 70 kg person with 25% of his volume out of the water.   If the density of the life preserver is 100 kg/m^3 and it is completely submerged, what must its volume be? Assume that the density of the person to be about the same as the density of water, 1000 kg/m^3. Express your answer with the appropriate units.

A scale reads 100 N when a piece of aluminum is hanging from it. What does it read when it is lowered so that the aluminum is submerged in water? The mass density of aluminum is 2700 kg/m^3. Be careful, you are given mass density instead of weight density, and we are using SI units

The U-tube in the figure contains two liquids in static equilibrium: Water of density ???? = 998 ????/??3 is in the right arm, and oil of unknown density ???? is in the left. Measurement gives ℓ = 135 mm and ?? = 12.3 mm. What is the density of oil.