The products of combustion from burner are routed to an industrial application through a thin-walled metallic duct of diameter D
1 answer:
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Answer:
N = 38546.82 rpm
Explanation:
= 150 mm
= 17671.45
= 250 mm
= 49087.78
The centrifugal force acting on the flywheel is fiven by
F = M ( -
) x
------------(1)
Here F = ( -UTS x + UCS x
)
Since density,
∴ -
= 50 mm
∴ F =
F = 33618968.38 N --------(2)
Now comparing (1) and (2)
∴ ω = 4036.61
We know
∴ N = 38546.82 rpm
Answer:
Kindly follow the steps as shown below.
Explanation:
Answer:
3A
Explanation:
Using Ohms law U=I×R solve for I by I=U/R
Answer:
Explanation:
In an equilateral trinagle the center of mass is at 1/3 of the height and horizontally centered.
We can consider that the weigth applies a torque of T = W*b/2 on the right corner, being W the weight and b the base of the triangle.
The weigth depends on the size and specific gravity.
W = 1/2 * b * h * L * SG
Then
Teq = 1/2 * b * h * L * SG * b / 2
Teq = 1/4 * b^2 * h * L * SG
The water would apply a torque of elements of pressure integrated over the area and multiplied by the height at which they are apllied:
The term sin(30) is because of the slope of the wall
The pressure of water is:
p(y) = SGw * (h - y)
Then:
T1 = SGw * sin(30) * L * (h^2*y - h*y^2 + 1/3*y^3)(evaluated between 0 and h)
T1 = SGw * sin(30) * L * (h^2*h - h*h^2 + 1/3*h^3)
T1 = SGw * sin(30) * L * (h^3 - h^3 + 1/3*h^3)
T1 = 1/3 * SGw * sin(30) * L * h^3
To remain stable the equilibrant torque (Teq) must be of larger magnitude than the water pressure torque (T1)
1/4 * b^2 * h * L * SG > 1/3 * SGw * sin(30) * L * h^3
In an equilateral triangle h = b * cos(30)
1/4 * b^3 * cos(30) * L * SG > 1/3 * SGw * sin(30) * L * b^3 * (cos(30))^3
SG > SGw * 4/3* sin(30) * (cos(30))^2
SG > 1/2 * SGw
For the dam to hold, it should have a specific gravity of at leas half the specific gravity of water.
This is avergae specific gravity, including holes.