Set the double integral that represent the mass of the lamina D of density f(x,y) -...
D . Problem 4. A lamina lies in the first quadrant and is enclosed by the circle x2 +y2 = 4 and the lines x = 0 and y = 0. The density function of the lamina is equal to p(x, y) = V x2 + y2. Use the double integral formula in polar coordinates, S/ s(8,y)dx= $." \* fcr cos 6,r sin Øyrar] de, Ja [ Ꭱ . to calculate (1) the mass of the lamina, m = SSP(x,y)...
5) Given the function fix.y) - x2 and region R bounded by x 0, y x and 2x+y 6 (a) Sketch the region R (label lines, intercepts, axes and shade region) (b) SET UP the integral over this region (c) Assuming f(x.y)- xa is the density function for the lamina R given above, determine the mass for R
5) Given the function fix.y) - x2 and region R bounded by x 0, y x and 2x+y 6 (a) Sketch the...
3. Draw the region D and evaluate the double integral using polar coordinates. (a) SI x + y dA, x2 + y2 D= {(x, y)| x2 + y2 < 1, x + y > 1} D (b) ſ sin(x2 + y2)dA, D is in the third quadrant enclosed by m2 + y2 = 71, x2 + y2 = 27, y=x, y= V3x.
A lamina with constant density p(x, y) = p occupies the given region. Find the moments of inertia Ix and ly and the radii of gyration and y. The part of the disk x2 + y2 s az in the first quadrant Ix = Iy =
Please do #2
40 1. 16 pts) Evaluate the integral( quadrant enclosed by the cirle x + y2-9 and the lines y - 0 and y (3x-)dA by changing to polar coordinates, where R is the region in the first 3x. Sketch the region. 2. [6 pts) Find the volume below the cone z = 3、x2 + y2 and above the disk r-3 cos θ. your first attempt you might get zero. Think about why and then tweak your integral....
3. Draw the region D and evaluate the double integral using polar coordinates. dA, D= {(x, y)| x2 + y² <1, x +y > 1} (b) sin(x2 + y2)dA, D is in the third quadrant enclosed by D r? + y2 = 7, x² + y2 = 24, y = 1, y = V3r.
lamina with density ρ(x,y) = 3 √{x2+y2} occupies region D, enclosed by the curve r = 1−sin(θ). Which of the following statements is the best description of the center of mass of the lamina? Find the moments of intertia about the x-axis, the y-axis, and the origin for the lamina. Yes, the integrals can be done by hand, but why put yourself through that? You may round your answers to the nearest 0.01.
6. Use the additivity of the double integral to evaluate the double integral of f(x,y) = x2-y2 over the region that is a disk x2 + y2 < 4 with a triangular hole with vertices (0,0), (0,1), and (1,1).
Can you do 3 and 6
Determine whether the following assertions are true or false 1. The double integral JJDy2dA, where D is the disk x2 +y2く1, is equal to π/3 2. The iterated integral J^S 4drdy is equal to 3. The center of mass of the triangular lamina that occupies the region D- 10 4. The triple integral of a function f over the solid tetrahedron with vertices (0,0,0), x < 3,0 < y < 3-2) and has a...
4. (10 marks) Let a lamina of density px, y) = (x + 1)y be defined in the region bounded by the parabolas y = x2 and y = 2 - x?. Find the mass of the lamina.