Moments of Inertia In Exercises 57 and 58, verify the moments of inertia for the solid of uniform density. Use a computer algebra system to evaluate the triple
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Chapter 14 Solutions
Multivariable Calculus
- Variable-density solids Find the coordinates of the center of mass of the following solid with the given density. The cube in the first octant bounded by the planes x = 2, y = 2,and z = 2, with ρ(x, y, z) = 1 + x + y + zarrow_forwardSurface integral of a vector field? Let T be the upper surface of the tetrahedron bounded by the coordinate planes and the plane x + y + z = 4. Calculate the integral of the image below, where S is the face of T that is in the xy plane.arrow_forwardElectric charge is distributed over the disk x2+y2=1 so that its charge density is σ(x,y)= 1+x2+y2 (Kl/m2). Calculate the total charge of the disk.arrow_forward
- Set-up the double integral to find the mass of the surface S : the part of the plane z = 3 − x − 2y in the first octant, if the mass density at any point on the surface is given by δ(x, y, z) = xz with units of mass per unit area. You do not need to evaluate the double integral.arrow_forwardThe area bounded by y = 3, x = 2, y = -3 and x = 0 is revolved about the y-axis. a.The x-coordinate of its centroid is… b. The y-coordinate of the centroid of the solid is… c. The moment of inertia of the solid is…arrow_forwardCenter of mass of a curved wire A wire of densityd(x, y, z) = 15√y + 2 lies along the curve r(t) = (t2 - 1)j +2t k, -1 … t … 1. Find its center of mass. Then sketch the curveand center of mass together.arrow_forward
- True or False Plus A. In evaluating the moment of a planar lamina, a horizontal strip cannot be used as a representative area. B. The moment of any planar lamina is the product of the mass of the region and its centroid. Choices A. Both A and B are true B. Both A and B are false C. A is true, B is false D. A is false, B is truearrow_forwardfind a. the mass of the solid. b. the center of mass. A solid region in the first octant is bounded by the coordinate planes and the plane x + y + z = 2. The density of the solid is d(x, y, z) = 2x gm/cm3arrow_forwardConsider the solid E that occupies the tetrahedral region formed by the coordinate planes, x = 0, y = 0 and z = 0 and the plane (x/a) + (y/b) + (z/c) = 1 for some positive constants a, b, and c. Assume the mass density is ρ(x, y, z) = 1. Find the x-coordinate, of center of mass of the solid.arrow_forward
- Using Stokes’ Theorem to evaluate a surface integral Evaluate∫∫S (∇ x F) # n dS, where F = -y i + x j + z k, in the following cases.a. S is the part of the paraboloid z = 4 - x2 - 3y2 that lies within the paraboloid z = 3x2 + y2 (the blue surface as shown). Assume n pointsin the upward direction on S.b. S is the part of the paraboloid z = 3x2 + y2 that lies within the paraboloidz = 4 - x2 - 3y2, with n pointing in the upward direction on S.c. S is the surface in part (b), but n pointing in the downward direction on S.arrow_forward(a) Find the centroid of the area between the x axis and one arch of y = sin x.(b) Find the volume formed if the area in (a) is rotated about the x axis.(c) Find Ix of a mass of constant density occupying the volume in (b).arrow_forwardUsing cylindrical coordinates evaluate ʃ ʃ ʃE sqrt ((x2 + y2)) dV where E is the solid bounded by the circular paraboloid z = 1 – 16 (x2 + y2) and the xy-plane.arrow_forward
- Elementary Linear Algebra (MindTap Course List)AlgebraISBN:9781305658004Author:Ron LarsonPublisher:Cengage Learning