The Froude Number (Fr) is given by the equation:
\[ Fr = \frac{V}{\sqrt{g \cdot D}} \]
Where:
Rearranging the equation to solve for the mean flow velocity (V):
\[ V = Fr \cdot \sqrt{g \cdot D} \]
Substituting the given values into the equation:
\[ V = 4 \cdot \sqrt{9.8 \cdot 0.2} \]
First, calculate \( g \cdot D = 9.8 \cdot 0.2 = 1.96 \).
Now, take the square root:
\[ \sqrt{1.96} = 1.4 \]
Thus, the mean flow velocity (V) is:
\[ V = 4 \cdot 1.4 = 5.6 \, \text{m/s} \]
The mean flow velocity is: 5.6 m/s (rounded to one decimal place).
In the isochemical phase diagram shown below, the curved arrow represents the P-T path. The variance at peak metamorphism is _.
The units A to H marked on the figure represent different rock formations. Select the option that describes the chronological sequence from old to young.
Consider two intersecting, north-easterly striking and south-easterly dipping dikes Y1 and Y2, which are exposed on an east-west trending vertical wall of a granite (X) quarry as shown below.
The angle that the dikes make with the horizontal on the quarry wall is