In a Wind Tunnel the Pressure on the Top Surface

question 14

Multiple Choice

In a wind tunnel the pressure on the top surface of a model airplane wing is 8.8 × 10⁴ N/m and the pressure on the bottom surface is 9.0 × 10⁴ N/m². If the area of the top and bottom surfaces of each wing is 2.0 m², what is the total lift on the model airplane?

• A) 2.0 × 10³ N
• B) 8.0 × 10³ N
• C) 1.6 × 10⁴ N
• D) 3.6 × 10⁴ N
• E) 1.0 × 10³ N

---

Definitions:

Mutually Exclusive

Two events that cannot occur simultaneously, meaning the occurrence of one event excludes the possibility of the other.

P(A)

The probability of event A occurring, in the context of all possible outcomes.

P(B)

The probability of event B occurring in a statistical experiment.

Independent Events

Two events that have no influence on each other's occurrence, meaning the probability of one does not affect the other.