Physics
A balloon filled with helium gas floats in a big closed jar which is connected to an evacuating pump. What will be your observation, if air from jar is pumped out? Explain your answer.
Related Questions
Figure shows the same block of wood floating in three different liquids A, B and C of densities ρ1, ρ2, and ρ3 respectively. Which liquid has the highest density? Give reason for your answer.
What is center of buoyancy? State it's position for a floating body with respect to the centre of gravity of body.
Why is floating ice less submerged in brine than in water?
A block of wood is so loaded that it just floats in water at room temperature. What change will occur in the state of floatation, if
(a) some salt is added to water,
(b) water is heated?