Find a function u(x, y) which satisfies the Laplace equation 1 = Urr + = U₁ + 7/124606 = 0 Au in the disc x² + y² <6, and which satisfies the data u(x, y) = y + y² on the disc's boundary. Express your answer in terms of Cartesian coordinates.
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- 5.Consider the ellipsoid V(x,y,z)=rx2+σy2+σ(z−2r)2=c>0.Vx,y,z=rx2+σy2+σz−2r2=c>0. a.Calculate dVdtdVdt along trajectories of the Lorenz equations (1).Use Green’s theorem to evaluate ∮C(ye2xy−5y)dx+ (xe2xy−2x)dy, where Cis the counterclockwise oriented boundary curve of the square with vertices at(0,0), (0,1), (1,0), and (1.1).Evaluate the triple integral. 16. ∫∫∫T xz dV , where T is the solid tetrahedron with vertices (0,0,0),(1,0,1),(0,1,1) and (0,0,1)
- Use Stokes’ Theorem to evaluateF(x, y, z) = 3zi + 4x j + 2yk; C is the boundary of theparaboloid shown in Figure 15.8.3...Evaluate the triple integral. 3xyz dV, where T is the solid tetrahedron with vertices (0, 0, 0), (1, 0, 0), (1, 1, 0), and (1, 0, 1)Let u(ρ, φ) be a solution of Laplace’s equation in the cylinder 0 ≤ ρ < R represented by thePoisson integral formula (3.1.14) with T (φ) ≥ 0. Show that for any 0 ≤ ρ ≤ R:R − ρ/R + ρ u(0, φ) ≤ u(ρ, φ) ≤ R + ρ/R − ρ u(0, φ).
- Show that the function u(x, y, z) = e3x+4ysin(5z) satisfies the Laplace equation in R3Find a parametrization for the cylinder x2 + y2 = 1.Suppose that U is a solution to the Laplace equation in the disk Ω = {r ≤ 1} andthat U(1, θ) = 5 − sin^2(θ).(i) Without finding the solution to the equation, compute the value of U at theorigin – i.e. at r = 0.(ii) Without finding the solution to the equation, determine the location of themaxima and minima of U in Ω.(Hint: sin^2(θ) =(1−cos^2(θ))/2.)
- 1. (Section 17.7) Use Stokes’ Theorem to calculate the work done by −→F (x, y, z) = ex2ˆı − 2xzˆj + xˆk in moving a particle aroundthe closed path determined by the intersection of positively oriented surface S : x + 4y + 2z = 4 and the coordinate planes.Integrate ƒ(x, y) = sqrt(4 - x2) over the smaller sector cut from the disk x2 + y2 <=4 by the rays u = pai/6 and u = pai/2.Consider the surface S shown in the gure and whose parameterization isgiven by: r(u, v) = (sin v, u sin v, v) with 0 ≤ u ≤ 2, 0 ≤ v ≤ π/2 The surface differential, dS, corresponds to: