Problem 7 (12 points) Let R be the region in the first quadrant bounded from below...
(10 points) Let R be the region in the first quadrant bounded by the x and y axes and the line y = 1 – 1. Notice R is a triangle with area 1/2 (you do not need to verify this). Find the coordinate of the centroid of R. For extra credit, determine the y coordinate without calculating an integral. (Note: If we regard R as a plate, then the centroid of R can also be thought of as the...
need 1-5 Midterm #3, Math 228 Each question is worth five points. 1. Let F(r.yzy). Let C be any curve that goes from A(-1,3,9) to B(1,6,-4). a) Show that F is conservative. b) Find a function φ such that ▽φ = F c) Use the result of b) to find Ic F Tds 2. Let F(z, y)-(2), and let C be the boundary of the square with vertices (1, 1). (-1,1). (-1,-1 traced out in the counter-clockwise direction. Find Jc...
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...
3) (11 points) Consider the vector field Use the Fundamental Theorem of lLine Integrals to find the work done by F along any curve from 41. 1Le) to B(2. el) 4) (10 points) Consider the vector field F(x.y)-(r-yi+r+y)j and the circle C: r y-9. Verify Green's Theorem by calculating the outward flux of F across C (12 points) Find the absolute extreme values of the function .-2-4--3 on the closed triangular region in the xy-plane bounded by the lines x...
6. (20 points) Find the centroid of the region in the first quadrant bounded by the z-axis. 1-y2, and the line x + y 2. 6. (20 points) Find the centroid of the region in the first quadrant bounded by the z-axis. 1-y2, and the line x + y 2.
4. -15 points Use Green's theorem for flux to evaluate the line integra ds . (6ху, y2-x2) and C is the positively oriented boundary curve of the region bounded by y F 0 and y x(4-x). Submit Answer 4. -15 points Use Green's theorem for flux to evaluate the line integra ds . (6ху, y2-x2) and C is the positively oriented boundary curve of the region bounded by y F 0 and y x(4-x). Submit Answer
7. (5 points) Evaluate S SpydA, where D is the region in the first quadrant bounded by the parabolas r = y2 and x = 8 – y?.
I lost in this I need help please thank you 10) [12;8] Let F =(x² - y, x) and C is the boundary of the closed region that is the bounded by the y-axis and the left half of the circle x² + y2 = 4. Assume counterclockwise orientation. (a) Find the work done by this force field on a particle that moves along C, without using Green's Theorem (that is, do it as line integrals: be careful with how...
Let R be the first quadrant region bounded by the lines y = x, y = 4x, and the hyperbolas xy = 1 and xy = 4. Calculate the area of R
y? +1 e a vector field 12) Let F(x,y) = (10 + 15y3 + cos (In(xe*)))i + (-6- 15x3 – sin" (ev? V In on R2. Use Green's Theorem to compute (F. dr Where C is the negatively oriented boundary of the region bounded by x2 + y2 = 4 and x2 + y2 = 9, in the first quadrant only.