Calculating Flux Across a Portion of a Surface in the First Octant

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SUMMARY

The discussion focuses on calculating the flux of the vector field F=(-2x, 3y, z) across the surface S defined by y=e^x in the first octant. The surface projects parallel to the x-axis onto the rectangle defined by 1 <= y <= 2 and 0 <= z <= 3. Participants emphasize the necessity of integrating the dot product of the vector field with the unit normal vector, which should point away from the yz-plane, to determine the flux accurately.

PREREQUISITES
  • Vector calculus, specifically surface integrals
  • Understanding of the divergence theorem
  • Knowledge of unit normal vectors in three-dimensional space
  • Familiarity with the exponential function and its properties
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  • Study the process of calculating surface integrals in vector calculus
  • Learn how to derive and use the divergence theorem for flux calculations
  • Explore the concept of unit normal vectors and their applications in surface integrals
  • Investigate the properties of the exponential function, particularly in relation to surface equations
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Students and professionals in mathematics, physics, and engineering who are involved in vector calculus and need to calculate flux across surfaces in three-dimensional space.

robierob
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Find the flux of the field F=(-2x,3y,Z) across the surface S where S is the portion of y=(e^x) in the first octant that projects parallel to x-axis onto the rectangle with 1 <= y <= 2 and 0<= z <= 3. Define the unit normal vector n to point away from the yz-plane.

Im not exactly sure about what formula to use for this one...

Rob
 
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Sounds like you want to integrate the dot product of that vector field with the unit normal across the surface, right? What would the general equation be? And have you sketched what the surface and its boundaries look like?
 

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