What do you mean by pressure of a liquid? Write its Sl unit.
1 answer:
Explanation:
Pressure of a liquid :
Liquids also exert pressure as that in case of solids. We can understand it as the fact that it is impossible to hammer a nail with liquid. That's why liquid exert pressure on its surface. The formula for the pressure in liquid is given by :
Where
= density of liquid
g = acceleration due to gravity
h = height
The SI init of pressure is Pascal and it is dented by Pa.
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Answer:
1) Mass of the grain is .
2) 0.08901 kg of sand would have surface area equal the surface area of the cube.
Explanation:
1) Radius of the grain,r = 64.8 µm =
Volume of the sphere =
Volume of the grain of a sand:
Density of a grain of sand =
Mass of a grain of a sand = M
Mass of the grain is .
2) Surface are of sphere:
Surface area of a grain:
Length of the cube = a = 0.514 m
Total surface area of cube ,A'=
let the number grains with area equal to total surface area of cube be x.
Volume of x number of grains :V'
Mass of of sandL:
=
0.08901 kg of sand would have surface area equal the surface area of the cube.