A block and a beaker filled with water are placed side-by-side on a scale (case A ). The block is then placed into the beaker where it floats (case B). How do the two scale readings compare?

Suppose that a solid cube of some material floats motionless on the surface of an oil puddle at a service station with  61.5%  of its volume submerged. The density of the oil is  907 kg/m3. What is the density  ?  of the cube's material?     1000  kg/m3     558  kg/m3     796  kg/m3     145  kg/m3

A large ebony wood log, totally submerged, is rapidly floating down a flooded river. If the mass of the log is 476 kg, what is the buoyant force acting on the submerged log?

A cube-shaped block A of side length a is hanging from a spring balance D, which reads, in units of mass, Mp. The block is submerged in liquid C, which has a total mass of me and is inside beaker B with mass mp. The beaker rests on an electronic scale E with a readout of ME. a) Draw force diagrams for block A and beaker B. b) What is the mass mд of block A in terms of the given variables? c) What is the density pc of liquid C? d) The block is now pulled out of the liquid. What are the new readings M and Mg on the balance and scale? e) Compare the readouts of the balance and scale before and after the block is pulled from the liquid for the values a = 0.1 m, mg = 1 kg, mc = 5 kg, MD = 3.5 kg, and MĘ = 7.5 kg. E D B 7.50 00