what is upthrust

Upthrust in Fluids - Any liquid or gas produces upthrust. For example, the upthrust of air keeps a hot air balloon u..

Any liquid or gas produces upthrust. For example, the upthrust of air keeps a hot air balloon u..

The pressure exerted by a liquid on the base of the container depends on the vertical height of the liquid over it not on the area of cross-section. As one goes deeper in the swimming pool, the pressure on the ear drum is found to increas..

..

..

..

..

Introduction - The pressure exerted by a liquid on the base of the container depends on the vertical height of the liquid over it not on the area of cross-section. As one goes deeper in the swimming pool, the pressure on the ear drum is found to increase. A column of mercury exerts more pressure th..

Summary - Pressure at a point in a liquid depends upon the depth and on the density of the liquid. The pressure at any depth in a liquid acts equally in all directions. Liquids always find their own level. Pressure applied at any point in a confined liquid is transmitted equally in all the directio..

Hot air displaces a balloon, producing upthrust. This upthrust is balanced by the weight of the balloon. The balloon displaces a volume of air equal to its own volume. The air displaced is heavier than the air in the balloon as hot air is lighter than the cold air of same volu..