Use Green's Theorem to find the counterclockwise circulation and outward flux for the field F = (8x - 9y)i + (7y - 9x)j and curve C: the square bounded by x=0, x=8, y = 0, y = 8. The flux is (Simplify your answer.)
Use Green's Theorem to find the counterclockwise circulation and outward flux for the field F = (8x - 9y)i + (7y - 9x)j and curve C: the square bounded by x=0, x=8, y = 0, y = 8. The flux is (Simplify your answer.)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Vectors In Two And Three Dimensions
Section9.FOM: Focus On Modeling: Vectors Fields
Problem 11P
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Q4
![### Use of Green's Theorem to Calculate Flux and Circulation
#### Problem Statement
Use Green's Theorem to find the counterclockwise circulation and outward flux for the field **F = (8x − 9y)i + (7y − 9x)j** and curve **C**: the square bounded by **x = 0**, **x = 8**, **y = 0**, **y = 8**.
---
#### Calculation Steps
---
**Question:** Calculate the outward flux:
The outward flux is **[Input Box]**.
*(Simplify your answer.)*
---
Green's Theorem relates a line integral around a simple closed curve **C** and a double integral over the plane region **D** bounded by **C**. It states:
**∮C (P dx + Q dy) = ∬D ( (∂Q/∂x - ∂P/∂y) dA )**
Given:
- **P = 8x - 9y**
- **Q = 7y - 9x**
Use the partial derivatives:
- **∂Q/∂x = ∂/∂x (7y - 9x) = -9**
- **∂P/∂y = ∂/∂y (8x - 9y) = -9**
The integrand becomes:
- **∂Q/∂x - ∂P/∂y = -9 - (-9) = 0**
Since the integrand is 0, the double integral of 0 over any region is 0, hence:
**∬D 0 dA = 0**
Thus, the outward flux around the given curve C is **0**.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffc054248-5ffa-4367-92ab-9f8abb2324d9%2Ff3c5e095-d149-4b64-aa88-42bf478403dd%2Fg72doca_processed.png&w=3840&q=75)
Transcribed Image Text:### Use of Green's Theorem to Calculate Flux and Circulation
#### Problem Statement
Use Green's Theorem to find the counterclockwise circulation and outward flux for the field **F = (8x − 9y)i + (7y − 9x)j** and curve **C**: the square bounded by **x = 0**, **x = 8**, **y = 0**, **y = 8**.
---
#### Calculation Steps
---
**Question:** Calculate the outward flux:
The outward flux is **[Input Box]**.
*(Simplify your answer.)*
---
Green's Theorem relates a line integral around a simple closed curve **C** and a double integral over the plane region **D** bounded by **C**. It states:
**∮C (P dx + Q dy) = ∬D ( (∂Q/∂x - ∂P/∂y) dA )**
Given:
- **P = 8x - 9y**
- **Q = 7y - 9x**
Use the partial derivatives:
- **∂Q/∂x = ∂/∂x (7y - 9x) = -9**
- **∂P/∂y = ∂/∂y (8x - 9y) = -9**
The integrand becomes:
- **∂Q/∂x - ∂P/∂y = -9 - (-9) = 0**
Since the integrand is 0, the double integral of 0 over any region is 0, hence:
**∬D 0 dA = 0**
Thus, the outward flux around the given curve C is **0**.
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