A Thin Flat Plate Is Situated in an Xy-Plane Such

question 52

Multiple Choice

A thin flat plate is situated in an xy-plane such that the density d ( in lb/ft ² ) at the point is inversely proportional to the square of the distance from the origin. What is the effect on the density at P if the x- and y-coordinates are each multiplied by

• A)d is multiplied 0.11
• B)d is multiplied 0.33
• C)d is multiplied 3
• D)d is multiplied 9
• E)d is multiplied 4.24

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