An average adult has a mass of 81 kg, knowing that the average human density is very close to that of fresh water (1,000 kg/m3), (a) Calculate the buoyant force exerted by fresh water on that person. (b) If this adult jumped in a tank filled with Glycerine (sg = 1.263) what will be the percentage of the submerged volume below the surface?

A vessel going from salt to freshwater sinks 5cm, then after burning 500kn of coal rises 2.5cm. What is the original weight of the vessel? Assume that the cross-sectional area of the vessel near the water surface is constant. Unit wt of seawater=10.10 kN/m^3.

what is the answer for number 3?

For a liquid with the contact angle of 53.6 degrees and surface tension of 0.075 N/m, capillary rise is 2.50 m. What is the expected capillary rise in meters if the liquid is replaced with another with a contact angle of 12.7 degrees and a similar surface tension? (answer should be accurate to 2 decimal places) Answer: