if the radius of the capillary tube is doubled, what changes will take place in the hieght of rise of liquid with capacity tube
1 answer:
Explanation:
The height of the rise of liquid with capillary tube is given by the formula as follows :
Where
r is radius
It is clear that the height of the rise of liquid is inversely proportional to the radius of the capillary tube.
If the radius of the capillary tube is doubled, it means the height of rise of liquid with capillary tube become half.
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Answer: 21965.517 Pa
Explanation:
Pressure is the force
exerted by a gas, a liquid or a solid on a surface (or area)
, its unit is Pascal
which is equal to
and its formula is:
(1)
In this case we have the surface of a sole of a tennis shoe:
(2)
And the mass of the person who wears it:
On the other hand, we know the weight is the force the Earth exerts on people and objects due gravity
:
(3)
Substituting (2) and (3) in (1):
(4)
Finally:
This is the pressure the shoe exert on the ground