Long description: block2fig5

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A diagram showing the cross-section of a solid of revolution, illustrating a representative horizontal slice.

Alt text: A diagram illustrating the cross-section of a solid of revolution around the y-axis, showing a representative horizontal slice.

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  • The image displays a three-dimensional shape, resembling a bowl or cone section, drawn on a coordinate system with the x-axis and y-axis labeled.
  • A representative horizontal slice, labeled \(\Delta y\), is shown within the solid, indicating the thickness of the slice perpendicular to the y-axis.
  • This slice is shown at a specific point \((x, y)\) within the solid, and the cross-section is shaded.
  • The context suggests that the solid is generated by rotating a curve around the y-axis, and the slice \(\Delta y\) represents an elemental disk or washer used in calculating the volume of revolution.

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