d = (5wL4) / (384EI)
Where d is deflection, w is uniform load, L is beam length, E is modulus of elasticity, I is moment of inertia
s = F / A
Where s is stress, F is force, A is area
Q = A * v
Where Q is flow rate, A is cross-sectional area, v is velocity
v = (1/n) * R^(2/3) * S^(1/2)
Where v is velocity, n is Manning's roughness coefficient, R is hydraulic radius, S is slope
d = (5wL4) / (384EI)
Where d is deflection, w is uniform load, L is beam length, E is modulus of elasticity, I is moment of inertia
s = F / A
Where s is stress, F is force, A is area
Q = A * v
Where Q is flow rate, A is cross-sectional area, v is velocity
v = (1/n) * R^(2/3) * S^(1/2)
Where v is velocity, n is Manning's roughness coefficient, R is hydraulic radius, S is slope
hf = f * (L/D) * (v/2g)
Where hf is head loss, f is friction factor, L is pipe length, D is pipe diameter, v is fluid velocity, g is acceleration due to gravity
C : FA : CA : W
Where C is cement, FA is fine aggregate, CA is coarse aggregate, W is water