A barge filled with scrap iron is in a canal lock. If the iron is thrown overboard, does the water level at the side of the lock rise, fall, or remain unchanged? Explain.

What happens to an object that is immersed in a liquid and the buoyant force that it experiences is larger that its weight?. Explain.

a wooden cube of unknown density, measured 10x10x10 cm across is pushed down by a force of 5N down into water. the cube is being sunk until its top is at the water's surface.assuming g=10m/s^2, water density of 10^3kg/m^3:1) what is the cube's density? 2) without the additional 5n of force, where would the cube stop?

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^3

Q1): The mattress of a water bed is 2 m long by 2 m wide and 30 cm deep. A) Find the weight of the water in the mattress. B) Find the pressure exerted by the water on the floor when the bed rests in its normal position. Assume that the entire lower surface of the bed makes contact with the floor. C) What if the water bed is replaced by a 300-lb ordinary bed that is supported by four legs? Each leg has a circular cross section of radius 2 cm. What pressure does this bed exert on the floor?

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?