Use spherical coordinates to find the mass m of a solid Q that lies between the spheres x2 + y2 +z" 1 and x2 + y2 + z2-4 given that the density at each point P(x, y, z) is inversely proportional to the distance from P to the origin and 8(o, 3,02 15 pts] (0, 1,0)-2/m3 from P to the origin and Use spherical coordinates to find the mass m of a solid Q that lies between the spheres x2...
The gravitational field F(x,y,z) =cx /(x2 + y2 + z2)3/2 e1+ cy /(x2 + y2 + z2)3/2 e2+ cz/ (x2 + y2 + z2)3/2 e3 is a gradient field, where c is a constant, such that the field is rotation free. If we define f(x,y,z) = −c /(x2 + y2 + z2)1/2 , then show that (a) F = grad(f). (b) curl(F) = 0.
*PLEASE SHOW ALL WORK AND STEP BY STEP SOLUTION* 7.+-/3 points MarsVectorCalc6 2.6.011. For the functions below, what is the direction of fastest increase at (1, 1, 1)? 8 (a) f(x, y 2) -2+ y2 +2 x2 + y2 + z2 (b) f(x, y, z)-2xy + 2yz + 2xz 8 (cx,2x2 + y2+ 2 2 + z2 7.+-/3 points MarsVectorCalc6 2.6.011. For the functions below, what is the direction of fastest increase at (1, 1, 1)? 8 (a) f(x, y...
7. Use Green's Theorem to find Jc F.nds, where C is the boundary of the region bounded by y = 4-x2 and y = 0, oriented counter-clockwise and F(x,y) = (y,-3z). what about if F(r, y) (2,3)? x2 + y2 that lies inside x2 + y2-1. Find the surface area of this 8. Consider the part of z surface. 9. Use Green's Theorem to find Find J F Tds, where F(x, y) (ry,e"), and C consists of the line segment...
4. The figure below shows a cylinder with walls y = x2 and x = y2 truncated by the plane 0 0 (i) Define a piecewise parametric position vector r(t) that traces out the intersecting curve from (a) the origin to (1,1, 1) along the y-z? wall with t є 10,1), and then (b) back to the origin along the y2 wall with te[1,2 (ii) Compute the piecewise parametric velocity vector. (iii) Compute the piecewise parametric acceleration vector. 4. The...
(d) Let (x1,x) R..9x 2 yo} (3) S is the set of combinations of (x,x2) which produce at least output level yo.Economists refer to S'as the upper contour set associated with output yo. Assume that x (x,x2) S and y (y,y2) S. That is xfx yo and yy z yo. i) Let z (z1,z2) R.. What must be true for ze S? ( mark) ii) Let z= (z1,z2) x +(1A)y where 02<1 Prove that zE S Hint: Using results on...
8 pts Question 3 Consider the function f(x,y, 2)(x 1)3(y2)3 ( 1)2(y2)2(z 3)2 (a) Compute the increment Af if (r,y, z) changes from (1,2,3 (b) Compute the differential df for the corresponding change in position. What does (2,3,4) to this say about the point (1, 2,3)? ( 13y2)3 ( 1)2(y 2)2(z 3)2 with C (c) Consider the contour C = a constant. Use implicit differentiation to compute dz/Ox. Your answer should be a function of z. (d) Find the unit...
Suppose that X = (Xi, X2, , X.) and Y-X,,Y2, , Ym) are random samples from continuous distributions F and G, respectively.Wilcoxon's two-sample test statistic W - W(X, Y) is defined to beRi where R, is the rank of Y in the combined sample 1. Let T Σǐn i Zi where Zi,Z2, ,Zm are numbers sampled at random without replacement from the set {1,2,..., N} Show that E(Z) = (N + 1)/2 and hence E(T) m(N + 1)/2 Show that...
1. Find the absolute maximum and minimum values of f(r,y) = x2+y2+5y on the disc {(x, y) | x2+y2 < 4}, and identify the points where these values are attained 2. Find the absolute maximum and minimum values of f(x, y) = x3 - 3x - y* + 12y on the closed region bounded by the quadrilateral with vertices at (0,0), (2,2), (2,3), (0,3), and identify the points where these values are attained. 3. A rectangular box is to have...
3) Find the absolute maximum and absolute minimum values of x2 Y2 2x2 Зу? - 4x - 5 on the region 25 + + 2Y2 Show that the surfaces 3X2 Z2 4) 9 and x2 Y2Z - 8X - 6Y - 8Z + 24 0 have a common tangent plane at the point (1, 1, 2) Find the maximum and minimum values that 3x - y 3z attains on the intersection of the surfaces x + y 5) 2z2 1...