Tag: floatation
Questions Related to floatation
Assertion: To float; a body must displace liquid whose weight is equal to the actual weight.
Reason: The body will experience no net downward force in that case.
What is the relation between thrust and pressure?
Buoyant force is directed
When a solid is completely immersed in a fluid, the apparent loss of weight of solid is _______ volume of fluid displaced
When a body is fully immersed in a liquid the apparent loss in the weight of body is equal to :
State whether the weight of an iron sinker with cork combined in water will be more or less than that of the iron sinker alone in water.
An incompressible liquid of density $\rho$ is contained in a vessel of uniform cross-sectional area $A$. If then atmospheric pressure is $p$, then the force acting on a horizontal plane of area a situated at a depth $d$ in liquid is given by
A gas is enclosed in a rectangular vessel. $20 \times 10^23$ molecules of the gas strike a well of the vessel normally per second, with a velocity of 250m/s and rebound with the same speed in the opposite direction. What is the force exerted by the gas on the wall if the mass of each molecule is $5 \times 10^-23$ g ?
A pump is required to lift 1000 kg of water per minute from a well 20 m deep and eject it at a rate of 20 $ms^-1$. What (horsepower engine is required for the purpose of lifting water)?
The branch of physics which deals with the study of fluids at rest is called :