[[F. F. ds for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. Evaluate the surface integral F(x, y, z) = x² i + y²j+z²k S is the boundary of the solid half-cylinder 0 ≤z≤ √√9-y²,0 ≤x≤2 18π

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Surface Integral Calculation for Vector Field**

### Problem Statement:
Evaluate the surface integral \(\iint_{S} \mathbf{F} \cdot d\mathbf{S}\) for the given vector field \(\mathbf{F}\) and the oriented surface \(S\). In other words, find the flux of \(\mathbf{F}\) across \(S\). For closed surfaces, use the positive (outward) orientation.

### Given:
\[
\mathbf{F}(x, y, z) = x^2 \mathbf{i} + y^2 \mathbf{j} + z^2 \mathbf{k}
\]

### Boundary Conditions:
\[
S \text{ is the boundary of the solid half-cylinder } 0 \le z \le \sqrt{9 - y^2}, 0 \le x \le 2
\]

### Solution:
The solution to the integral is:
\[
18\pi
\]

This is the flux of the vector field \(\mathbf{F}\) across the surface \(S\), given the boundary conditions provided.

The text above includes the detailed information necessary to resolve the surface integral for the specified vector field and surface. The final result of the surface integral calculation is \(18\pi\), ensuring an accurate solution to the given problem.

### Explanation of Diagrams or Graphs (if any):
There are no diagrams or graphs provided in the image above.

---

This detailed exposition ensures that students or readers can understand the context, the boundaries, the vector field given, and the result of the integral calculation. This problem is relevant in vector calculus, particularly in flux integrals and applications in physics and engineering.
Transcribed Image Text:**Surface Integral Calculation for Vector Field** ### Problem Statement: Evaluate the surface integral \(\iint_{S} \mathbf{F} \cdot d\mathbf{S}\) for the given vector field \(\mathbf{F}\) and the oriented surface \(S\). In other words, find the flux of \(\mathbf{F}\) across \(S\). For closed surfaces, use the positive (outward) orientation. ### Given: \[ \mathbf{F}(x, y, z) = x^2 \mathbf{i} + y^2 \mathbf{j} + z^2 \mathbf{k} \] ### Boundary Conditions: \[ S \text{ is the boundary of the solid half-cylinder } 0 \le z \le \sqrt{9 - y^2}, 0 \le x \le 2 \] ### Solution: The solution to the integral is: \[ 18\pi \] This is the flux of the vector field \(\mathbf{F}\) across the surface \(S\), given the boundary conditions provided. The text above includes the detailed information necessary to resolve the surface integral for the specified vector field and surface. The final result of the surface integral calculation is \(18\pi\), ensuring an accurate solution to the given problem. ### Explanation of Diagrams or Graphs (if any): There are no diagrams or graphs provided in the image above. --- This detailed exposition ensures that students or readers can understand the context, the boundaries, the vector field given, and the result of the integral calculation. This problem is relevant in vector calculus, particularly in flux integrals and applications in physics and engineering.
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