Related InterviewSolutions

• A body of mass 2.0 kg and density 8000 `(kg)/(m^3)` is completely dipped in a liquid of density 800 `(kg)/(m^3)`. Find the force of buoyancy on it.
• (a) What is 1 atm? (b) What is the relation between 1 atm and pascal?
• what is 1 pascal?
• In his original barometer, Pascal used water instead of mercury. Water is lwss dense than mercury, so the water barometer would have:(a) higher height than, (b) a lower height than, or (c ) the same height as the mercury barometer. Why?
• (a) Gallinule (an aquatic bird with exceptionally long toes that are spread out over a large area) can actually walk across lily pads without sinking. Explain. (b) One day while ewimming below the surface of the ocean, you let out a small bubble of air from your mouth. What happens to the bubble as it rises towards the surface?
• Why do you feel lighter when you swim?
• Why is it easier to walk on soft sand with a flat shoe than with a pencil-heeled shoe?
• Why is it easier to swim in sea water than in river water?
• A hydrometer floats with half of its stem outside water surface. It is now placed in alcohol `(RD=0.8)`. The hydrometer floats:A. with stem at the same positionB. with more stem inside the alcoholC. with more stem outside alcoholD. in tilted position.
• Salt water is slightly dense than fresh water. Will a boat float higher in salt water on in fresh water?