$$v = \frac{Q}{F} = \frac{75}{14,8} = 5,07\ \left\lbrack \frac{m}{s} \right\rbrack$$
$$Q_{\min} = v_{\min} \bullet F = 1\ \bullet 14,8 = 14,8\ \ \lbrack\frac{m^{3}}{s}\rbrack$$
Qmin < Q < Qmax
$$q = f_{1} \bullet s \bullet \nu \bullet \frac{e}{} \bullet d\ \ \ \lbrack\frac{\text{kg}}{m^{3}}\rbrack$$
$$f_{2} = \frac{1,7}{20} = 0,085$$
$$q_{2} = 0,085 \bullet 1,3 \bullet 2 \bullet \frac{2}{0,9} \bullet 1 = 0,49\ \ \ \lbrack\frac{\text{kg}}{m^{3}}\rbrack$$
$$q_{sr} = \frac{\sum q_{i} \bullet S_{i}}{\sum S_{3}} = \ \frac{1,39 \bullet 7,43 + 0,53 \bullet 5,40 + 1,39 \bullet 3,15}{7,43 + 5,40 + 3,15} = 1,1\ \ \lbrack\frac{\text{kg}}{m^{3}}\rbrack$$
Q = 1, 1 • 15, 98 • 2, 8 • 0, 8 = 39, 37 [kg]
$$n = \sqrt{0,2 \bullet 4,8} + \frac{1}{\sqrt{7,43}} = 1,35\ \ \lbrack\frac{\text{szt.}}{m^{2}\text{przekroju}}\rbrack$$
$$n = 2,7 \bullet \sqrt{\frac{4,8}{3,15}} = 3,34\ \ \lbrack\frac{\text{szt.}}{m^{2}\text{przekroju}}\rbrack$$
$$n_{sr} = 1,85\ \ \ \lbrack\frac{\text{szt.}}{m^{2}\text{przekroju}}\rbrack$$
N = 1, 85 • 7, 43 = 13, 75 ≈ 14 [szt.]
Ro = 7, 58 + 1, 48 + 49, 3 ± 14, 5 = 58, 36 ± 14, 5 [Ω]
$$R_{p} = \rho \bullet \frac{l}{s} = 28,4 \bullet 10^{- 9}\ \bullet \frac{30 \bullet 1,3 \bullet 2}{1,5 \bullet 10^{- 6}} = 1,48\ \ \lbrack\Omega\rbrack$$
ρ = 28, 4 • 10−9
s = 3, 0 [mm2];
l = 500 • gr.pokladu [m]
R = n • (Rp+Rz) = 29 • 1, 7 ± 0, 5 = 49, 3 ± 14, 5 [Ω]