If you put a drop of food coloring in water and watch the drop disperse, is entropy increasing or decreasing.
1 answer:
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Let and
be the vectors, and let
be their common magnitude.
The resultant is
times larger in magnitude than either vector alone, so
.
Recall the dot product identity
where is the angle between the vectors
and
. In the special case of
, we get
Now, to get the angle between and
, we have
To compute the dot product, we take the dot product of the resultant with itself.
Solve for .
Since their dot product is zero, and
are perpendicular, so
.
Answer:
a)
b)
Explanation:
From the question we are told that:
Height
Width
a)
Generally the equation for Dam's Hydro static force is mathematically given by
Where
Therefore
b)
Generally the equation for Dam's Force per unit area is mathematically given by
For Top
For bottom
Therefore