Concept explainers
Equipotential curves Consider the following potential functions and graphs of their equipotential curves.
a. Find the associated gradient field F = ▿ϕ.
b. Show that the vector field is orthogonal to the equipotential curve at the point (1, 1). Illustrate this result on the figure.
c. Show that the vector field is orthogonal to the equipotential curve at all points (x, y).
d. Sketch two flow curves representing F that are everywhere orthogonal to the equipotential curves.
38. ϕ (x, y) = x + y2
Want to see the full answer?
Check out a sample textbook solutionChapter 17 Solutions
CALCULUS:EARLY TRANSCENDENTALS-PACKAGE
Additional Math Textbook Solutions
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
Calculus: Early Transcendentals (2nd Edition)
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Elementary Statistics
University Calculus: Early Transcendentals (4th Edition)
- A net is dipped in a river. Determine the flow rate of water across the net if the velocity vector field for the river is given by = (x - y, z + y + 9, z) and the net is decribed by the equation y = V1-x - z, y 2 0, and oriented in the positive y- direction. (Use symbolic notation and fractions where needed.) V. dS =arrow_forwardThis is a multivariable question....please do asap...tqarrow_forwardMatch each of the following three vector fields to one of the four vector fields graphed below (yes, one graph does not have a match), and then explain your thinking: 1. (a) F(x, y) = (2y, 2.r). Match (circle one): I II III IV (b) F(x, y) = (x², 2y). Match (circle one): I II III IV (c) F(x, y) = (x², y²). Match (circle one): I II III IV (d) Explain your choices. Explanation:arrow_forward
- Determine if the vector fields below are conservative. Find potential functions where possible. (a.) F(x, y) = (2x — sin(x + y²), −2y sin(x + y²)) (b.) F(x, y) = (-y, x) (c.) F(y, z) = (z+y²y+z³)arrow_forwardPictured below is the graph of the vector field F(x, y) = . Which of the following equations describe flow lines of the vector field? ZZZ ZZZ 0x² + y² = 0² 0²-y²=C² Oy=2x + C y=x² +C -2arrow_forwardREFER TO IMAGEarrow_forward
- A net is dipped in a river. Determine the flow rate of water across the net if the velocity vector field for the river is given by v = (x - y, z + y +7,z²) and the net is decribed by the equation y = √1-x²-2², y 20, and oriented in the positive y-direction. (Use symbolic notation and fractions where needed.) 1.45-1 yasarrow_forwardSketch the vector fields. Use a table for it. F(x,y)=<x,y-x>arrow_forwarda) Sketch and label the contours z = 0, z = ±1, and ±4 for the function z = f(x, y) = –x² + y?. Plot the gradient vector field F = V f. メ b) Plot the vector field F(x, y) = (y, 0). メarrow_forward
- Let A be the vector potential and B the magnetic field of the infinite solenoid of radius R. Then { B(r) = A(r) = √x² + y2 is the distance to the z-axis and B is a constant that depends on the current strength I and the spacing of where r = the turns of wire. The vector potential for B is S 0 Incorrect Bk if Jc if r> R r R B(-y, x,0) ifarrow_forwardFourier's Law of heat transfer (or heat conduction) states that the heat flow vector F at a point is proportional to the negative gradient of the temperature: that is, F= -kVT, which means that heat energy flows from hot regions to cold regions. The constant k is called the conductivity, which has metric units of J/m-s-K or W/m-K. A temperature function T for a region D is given below. Find the net outward heat flux SSF•nds= - kff triple integral. Assume that k = 1. T(x,y,z)=110e-x²-y²-2². D is the sphere of radius a centered at the origin. The net outward heat flux across the boundary is. (Type an exact answer, using as needed.) G S VT.n dS across the boundary S of D. It may be easier to use the Divergence Theorem and evaluate aarrow_forwardA net is dipped in a river. Determine the flow rate of water across the net if the velocity vector field for the river is given by v = (x-y, z + y + 3, z²) and the net is decribed by the equation y = √1-x²-2², y ≥ 0, and oriented in the positive y- direction. (Use symbolic notation and fractions where needed.)arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning