The pressure difference between inside the house and the outside of the house is 540 Pa.
Pressure based problems:
Using Bernoulli's equation.
[tex]P1+\frac{1}{2} \rho v1^2 = P2 + \frac{1}{2} \rho v2^2 \\\\P1 + 0 = \delta P = \frac{1}{2} \rho v2^2 \\\\\delta p = \frac{1}{2}(1.2)(30)^2\\\\\delta p = 540 pa[/tex]
Using pressure definition:
ΔP = F / A
F = 9.45 × 10⁴ N
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