7. Let E be the ball of radius 1 centered at the point (0, 0, -1). (a) Show that E is given in Cartesian coordinates by the equation x² + y² + z² + 2z ≤ 0. (b) Write E is spherical coordinates. (c) Suppose the density on E is proportional to the distance to the origin, with the largest density being equal to 4. Use spherical coordinates to compute the mass and center of mass of E.

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
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7. Let E be the ball of radius 1 centered at the point (0, 0, -1).
(a) Show that E is given in Cartesian coordinates by the equation x² + y² + z² + 2z ≤ 0.
(b) Write E is spherical coordinates.
(c) Suppose the density on E is proportional to the distance to the origin, with the largest density
being equal to 4. Use spherical coordinates to compute the mass and center of mass of E.
Transcribed Image Text:7. Let E be the ball of radius 1 centered at the point (0, 0, -1). (a) Show that E is given in Cartesian coordinates by the equation x² + y² + z² + 2z ≤ 0. (b) Write E is spherical coordinates. (c) Suppose the density on E is proportional to the distance to the origin, with the largest density being equal to 4. Use spherical coordinates to compute the mass and center of mass of E.
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