9. A vector field is defined as: 2 marks (a) Sketch this field on the below axis. 0.5 0.5 0.5 2 marks (b) Evaluate ▽ ....
we need to determine if the vector field depicted in graph 1 and graph 2 are conservative by using the last 3 bullets points in the picture Project 1. Fundamental theorem of line integrals In our course we learned the fundamental theorem of line integrals: if F is a conservative vector field with potential f and C is a curve connecting point A to b, then f-dr = f(B)-f(A). Moreover it happens if and only if for any closed curve...
4. Consider the vector field u = (3r+yz) region V bounded by 2y2 < (2 - z)2 for y 2 0 and 0 y)j+(xy+2z)k, defined across a three-dimensional 1. z (a) Show that u is conservative and find a scalar function d that satisfies u = Vo. [6 marks] (b) Sketch the volume V and express the limits of the volume V in terms of cylindrical coordi nates (r, 0, z) [3 marks (c) Using the divergence theorem calculate the...
(9 marks) QUESTION 4 a) Given vector field Éx,y,z) --yº coszi - 3xy cosz j+ xy" sinzk. Show that F is a conservative vector field. (4 marks) ii) Find the potential function, f such that F=Vf. (4 marks)
Although it is not defined on all of space R', the field associated with the line integral below is simply connected, and the component test can be used to show it is conservative. Find a potential function for the field and evaluate the integral. (1,2,9) 27x? dx + 2 dy + 8z In y dz (1,1,5) Find the potential function. f(x,y,z) = 0 Evaluate the line integral. (1,2,9) 27° dx + 4zł dy +8ziny dz = 0 y (1,1,5) (Type...
Consider the following region R and the vector field F a. Compute the two-dimensional curl of the vector field. b. Evaluate both integrals in the circulation form of Green's Theorem and check for consistency. c. State whether the vector field is conservative. F-3y,3x); R is the triangle with vertices (0, 0), (1, 0), and (0, 1) a. The two-dimensional curl is D (Type an exact answer, using π as needed.) b. Set up the integral over the region R. dy...
(b) Let F: R2 + Rº be a vector field on R2 defined as F(x, y) = (3y, 22 – y). Suppose further that ^ C R2 is a curve in R2 consisting of the parabola y = 22 - 1 for 1 € (-1,0) and the straight line y = 1 – 1 for 1 € [0,1]. (i) Sketch the curvey in R2 [2] (ii) By considering the curve y piecewise, compute the vector field integral: [5] F(x). F(x)...
Problem #7: Let R = r \ {(0,0,0)) and F is a vector field defined on R satisfying curl(F) = 0. Which of the following statements are correct? [2 marks] (1) All vector fields on R are conservative. (ii) All vector fields on Rare not conservative. (iii) There exists a differentiable function / such that F - Vf. (iv) The line integral of Falong any path which goes from (1,1,1) to (-2,3,-5) and does not pass through the origin, yields...
2. Given the vector field F-ki/r+zk22, evaluate the scalar surface integral (1) over the surface of a closed cylinder about the z-axis specified by 2 = +3 and r = 2, as described in Fig. 1, where ki and ky are constants. Fig. 1. A cylindrical surface.
6.a) Let -2 5 -6 10 ), 2) an Evaluate the matrix 8 marks) b) Find the area enclosed between the following curves and sketch the region. 5x2-2. f(x)--3x2 + 30 and g(x) marks) c) Evaluate the following integrals. Give your answers to 2 decimal places. dac i) 2 (3+2 dx. (8 marks) [25 marks] 6.a) Let -2 5 -6 10 ), 2) an Evaluate the matrix 8 marks) b) Find the area enclosed between the following curves and sketch...
(2) For the vector field f 2z(ri yi)(22)k use the definition of line integral to evaluate the line integral J f.dr along the helical path r-costi + sintj+tk, 0St (3) You are given that the vector field f in Q2 is conservative. Find the corresponding potential function and use this to check the line integral evaluated in Q2 (2) For the vector field f 2z(ri yi)(22)k use the definition of line integral to evaluate the line integral J f.dr along...