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Unformatted text preview: r z. When we turn a sum over such elements into an volume integral, the element becomes rdrd dz. Spherical polars Here's a picture to show the volume element in spherical polars: As the radius r increases by a small amount r, and the angle increases by a small amount , and the angle increases by a small amount the volume element that is produced is r 2 sin r . When we turn a sum over such elements into an volume integral, the element becomes r 2 sin drd d . Return...
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 Spring '11
 Ricardo

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