Flux Consider the vector fields and curves in Exercises 57–58. a. Based on the picture, make a conjecture about whether the outward flux of F across C is positive, negative, or zero. b. Compute the flux for the vector fields and curves. 59. F and C given in Exercise 57 57. F = 〈 y − x , x 〉 ; C : r ( t ) = 〈 2 cos t , 2 sin t 〉 , for 0 ≤ t ≤ 2 π
Flux Consider the vector fields and curves in Exercises 57–58. a. Based on the picture, make a conjecture about whether the outward flux of F across C is positive, negative, or zero. b. Compute the flux for the vector fields and curves. 59. F and C given in Exercise 57 57. F = 〈 y − x , x 〉 ; C : r ( t ) = 〈 2 cos t , 2 sin t 〉 , for 0 ≤ t ≤ 2 π
Solution Summary: The flow of F on C is negative. The vector field F is directed inwards, but the flow is opposite to the orientation of the curve.
Flux Consider the vector fields and curves in Exercises 57–58.
a. Based on the picture, make a conjecture about whether the outward flux of F across C is positive, negative, or zero.
b. Compute the flux for the vector fields and curves.
59. F and C given in Exercise 57
57.
F
=
〈
y
−
x
,
x
〉
;
C :
r
(
t
)
=
〈
2
cos
t
,
2
sin
t
〉
,
for 0 ≤ t ≤ 2π
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
j)
f) lim
x+x ex
g) lim Inx
h) lim x-5
i) lim arctan x
x700
lim arctanx
811x
4. Evaluate the following integrals. Show your work.
a)
-x
b) f₁²x²/2 + x² dx
c) fe³xdx
d) [2 cos(5x) dx
e) √
35x6
3+5x7
dx
3
g) reve
√ dt
h) fx (x-5) 10 dx
dt
1+12
I just need help with evaluating these limits.
Chapter 17 Solutions
Calculus: Early Transcendentals, Books a la Carte, and MyLab Math with Pearson eText -- Title-Specific Access Card Package (3rd Edition)
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