Mathematics

Mathematics, 02.07.2019 00:10, charlesrogers38

Use the following to answer the questions below. f = −y i + x j x2 + y2 c1 be the circle of radius 4 in the xy-plane oriented counterclockwise and centered at the origin. c2 be the circle of radius 4 in the xy-plane centered at (5, 0) . (a) can stokes' theorem be used to calculate c1 f · dr ? find c1 f · dr =

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Mathematics, 03.07.2019 00:10, momo1039

Use stokes' theorem to evaluate s curl f · ds. f(x, y, z) = 5y cos(z) i + ex sin(z) j + xey k, s is the hemisphere x2 + y2 + z2 = 4, z ≥ 0, oriented upward. step 1 stokes' theorem tells us that if c is the boundary curve of a surface s, then curl f · ds s = c f · dr since s is the hemisphere x2 + y2 + z2 = 4, z ≥ 0 oriented upward, then the boundary curve c is the circle in the xy-plane, x2 + y2 = 4 correct: your answer is correct. seenkey 4 , z = 0, oriented in the counterclockwise direction when viewed from above. a vector equation of c is r(t) = 2 correct: your answer is correct. seenkey 2 cos(t) i + 2 correct: your answer is correct. seenkey 2 sin(t) j + 0k with 0 ≤ t ≤ 2π.

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Mathematics, 23.07.2019 12:50, siri5645

Determine which families of grid curves have u constant and which have v constant. u constant each grid curve is a helix each grid curve is a vertically oriented circle each grid curve lies in a plane z = ky that includes the x-axis each grid curve is a circle of radius (1 − |u|) in the horizontal plane z = u each grid curve is a circle of radius |u| in the horizontal plane z = sin(u) the grid curves lie in the vertical plane y = (tan3(u))x

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Mathematics, 30.08.2019 05:10, ProfS7160

Find a vector parametrization of the circle of radius 4 in the xy-plane, centered at (4,5), oriented counterclockwise. the point (8,5) should correspond to t=0. use t as the parameter in your answer.

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Mathematics, 13.10.2019 18:10, keisha71

Circle a has center of (5, -2) and a radius of 7, and circle b has a center of (7, -8) and a radius of 35. what steps will show that circle a is similar to circle b? a.) rotate circle a 90 degrees counterclockwise about the center. b) translate circle a using the rule (x-2, y+6). c) reflect circle a over the y-axis. d) dilate circle a by a scale factor of 5.

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