What might cause birds in population to immigration To the island
2 answers:
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Answer:
The required wall thickness is m
Explanation:
Given:
Fluid density
Diameter of tank m
Length of tank m
F.S = 4
For A-36 steel yield stress MPa,
Allowable stress
MPa
Pressure force is given by,
Pa
Now for a vertical pipe,
Where required thickness
m
Therefore, the required wall thickness is m
Answer:
44.95 tonnes
Explanation:
According to principle of buoyancy the object will just sink when it's weight is more than the weight of the liquid it displaces
It is given that empty weight of box = 40 tons
Let the mass of the stones to be placed be = M tonnes
Thus the combined mass of box and stones = (40+M) tonnes..........(i)
Since the box will displace water equal to it's volume V we have
Now the weight of water displaced = is density of water = 1000kg/
Thus weight of liquid displaced = ..................(ii)
Equating i and ii we get
40 + M = 84.95
thus Mass of stones = 44.95 tonnes