Question

question 4
how much force does the atmosphere exert on one side of a vertical wall 4.00-m high and 10.0-m long? refer to atmospheric pressure.
zero n
4.04×10⁶ n
1.01×10⁵ n
2.53×10³ n
4.04×10⁵ n

Explanation:

Step1: Recall pressure-force formula

Force \( F = P \times A \), where \( P = 1.01 \times 10^5 \, \text{Pa} \) (atmospheric pressure).

Step2: Calculate wall area

Area \( A = \text{height} \times \text{length} = 4.00 \, \text{m} \times 10.0 \, \text{m} = 40.0 \, \text{m}^2 \).

Step3: Compute force

\( F = 1.01 \times 10^5 \, \text{Pa} \times 40.0 \, \text{m}^2 = 4.04 \times 10^6 \, \text{N} \).

Answer:

4.04×10⁶ N (the second option)