## Conceptual Physics (12th Edition)

Pressure = $\frac{force}{area}$. The pressure is 4% of atmospheric pressure. $$(0.04)(\frac{101300 N}{m^{2}}) = (force)(100 m^{2})$$ Solve for $force = (0.04)(\frac{101300 N}{m^{2}})(100 m^{2}) = 4 \times 10^{5} N$.