For the following exercises, the heat flow vector field for conducting objects F = − k ∇ T , where T ( x , y , z ) is the temperature in the object and k > 0 is a constant that depends on the material. Find the outward flux of F across the following surfaces S for the given temperature distributions and assume k = 1 . 322. T ( x , y , z ) = 100 e − x − y consists of the faces of cube | x | ≤ 1 , | y | ≤ 1 , | z | ≤ 1 .
For the following exercises, the heat flow vector field for conducting objects F = − k ∇ T , where T ( x , y , z ) is the temperature in the object and k > 0 is a constant that depends on the material. Find the outward flux of F across the following surfaces S for the given temperature distributions and assume k = 1 . 322. T ( x , y , z ) = 100 e − x − y consists of the faces of cube | x | ≤ 1 , | y | ≤ 1 , | z | ≤ 1 .
For the following exercises, the heat flow vector field for conducting objects
F
=
−
k
∇
T
, where
T
(
x
,
y
,
z
)
is the temperature in the object and
k
>
0
is a constant that depends on the material. Find the outward flux of
F
across the following surfaces S for the given temperature distributions and assume
k
=
1
.
322.
T
(
x
,
y
,
z
)
=
100
e
−
x
−
y
consists of the faces of cube
|
x
|
≤
1
,
|
y
|
≤
1
,
|
z
|
≤
1
.
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.
Match the functions below with their level surfaces at height 3 in the table at the
right.
B
C
A
E
B
A
E
1. f(x, y, z) = 2z²-3y
2. f(x, y, z) = 2y² - 3z
3. f(x, y, z) = 2x² - 3z
4. f(x, y, z) = 2x² + 3z
(You can drag the images to rotate them.)
0.00
E
-1.00 0.00 1.00
A particle is under the influence of the force F= (-cosh (4x4) + xy)i + (e-y + x)j. The corner points move once in the counterclockwise direction on the rectangular curve in (1.1), (1.7), (3.1) and (3.7). Find the work done.
Differentiate with respect to t.
y = 7sin(t - t)
d
(7sin(t - t)) =|
dt
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