Vector Calculus Quiz
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Questions and Answers

What is the work done in moving a particle once around a circle of radius 3 in the xy plane under the force field F = (2x - y + z)i + (x + y - z²)j + (3x - 2y + 4z)k?

  • 18π
  • 0 (correct)
  • Which condition must be satisfied for the force field F = (2xy + z³)i + x²j + 3xz²k to be classified as a conservative force field?

  • The divergence of F should be zero.
  • The force must depend on time.
  • The curl of F should be zero. (correct)
  • F must be a function of position alone.
  • What is the scalar potential for the conservative force field F = (2xy + z³)i + x²j + 3xz²k?

  • x²y + 3xz + C (correct)
  • 2xyz + x² + C
  • xy² + z³ + C
  • x³y + z² + C
  • In finding the area cut from the plane x + 2y + 2z = 5 by the cylinder defined by x = y² and x = 2 - y², which shape do the equations represent?

    <p>Paraboloid</p> Signup and view all the answers

    What is the flux of the field F(x, y, z) = 4xi + 4yj + 2k through the surface created by the intersection of the paraboloid z = x² + y² and the plane z = 1?

    <p>8π</p> Signup and view all the answers

    Which equation correctly verifies Green’s theorem in the plane for the vector field (xy + y²)dx + x²dy?

    <p>∮C (xy + y²)dx + x²dy = ∬R (∂/∂x(y²) - ∂/∂y(xy))dA</p> Signup and view all the answers

    For the closed curve C bounded by y = x and y = x², what would be the essential characteristic of the region it encloses?

    <p>It is a region with two curves intersecting.</p> Signup and view all the answers

    What is the importance of calculating the work done by a particle in a circular motion under a given force field?

    <p>It can help in determining if energy is conserved.</p> Signup and view all the answers

    Which statement regarding the area found in the intersection of the cylinder and the plane is true?

    <p>It may be expressed in terms of integral bounds related to the cylinder.</p> Signup and view all the answers

    Study Notes

    Question 1

    • Find the work done moving a particle around a circle C in the xy-plane.
    • Circle has center at the origin and radius 3.
    • Force field is F = (2x - y + z)i + (x + y - z²)j + (3x - 2y + 4z)k.

    Question 2

    • Show that F = (2xy + z³)i + x²j + 3xz²k is conservative.
    • Find the scalar potential.

    Question 3

    • Find the area of the region cut from the plane x + 2y + 2z = 5 by the cylinder.
    • Cylinder walls are x = y² and x = 2 - y².

    Question 4

    • Find the flux of the field F(x, y, z) = 4xi + 4yj + 2k outward away from the z-axis.
    • Through the surface cut from the bottom of the paraboloid z = x² + y² by the plane z = 1.

    Question 5

    • Verify Green's Theorem in the plane.
    • For ∫(xy + y²)dx + x²dy.
    • Where C is the closed curve of the region bounded by y = x and y = x².

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    Description

    Test your understanding of vector calculus concepts with this quiz that covers topics such as work done in a circular path, conservative fields, flux through surfaces, and Green's Theorem. Each question challenges your ability to apply theoretical knowledge to practical problems in three-dimensional space.

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