For the following exercises, approximate the mass of the homogeneous lamina that has the shape of given surface S . Round to four decimal places. 305. Compute ∬ s F ⋅ N d S , where F ( x , y , z ) = x y z i + x y z j + x y z k and N is an outward normal vector S , where S is the surface of the five faces of the unit cube 0 ≤ x ≤ 1 , 0 ≤ y ≤ 1 , 0 ≤ z ≤ 1 missing z = 0 .
For the following exercises, approximate the mass of the homogeneous lamina that has the shape of given surface S . Round to four decimal places. 305. Compute ∬ s F ⋅ N d S , where F ( x , y , z ) = x y z i + x y z j + x y z k and N is an outward normal vector S , where S is the surface of the five faces of the unit cube 0 ≤ x ≤ 1 , 0 ≤ y ≤ 1 , 0 ≤ z ≤ 1 missing z = 0 .
For the following exercises, approximate the mass of the homogeneous lamina that has the shape of given surface S. Round to four decimal places.
305. Compute
∬
s
F
⋅
N
d
S
, where
F
(
x
,
y
,
z
)
=
x
y
z
i
+
x
y
z
j
+
x
y
z
k
and N is an outward normal vector S, where S is the surface of the five faces of the unit cube
0
≤
x
≤
1
,
0
≤
y
≤
1
,
0
≤
z
≤
1
missing
z
=
0
.
Q4.
x-y plane. Let V be the enclosed volume of the hemisphere. A vector function F is
defined as F= 2xz, yz, z
Let S be the closed surface formed by the hemisphere x+y +z =a² , zz0, and the
(a)
Evaluate the surface integral
FindS directly, where n is the outward
pointing unit normal vector on S.
Evaluate the surface integral in (a) using the Divergence Theorem of Gauss
Let F(r, y, z) = (y, y, TZ+ z²), and let S be the surface of a very small sphere centered at (-1,0, 1). Is || F. dS positive, negative, or
zero?
Select one:
a. positive
b. negative
C. zero
JL. (V x F) dS where F = (2,x+2, x+y+z)
(3) Evaluate, to the nearest hundredth,
and S = {(x, y, z)| 2² -1 = 3x² + 3y², 1 ≤ ≤ 2} oriented upwards.
(4) Let S be the surface depicted below, oriented to the side where the normal vectors
have a non-negative z-component. Given that the bounding curve in the ry-plane is
the ellipse (x-4)² + 4(y - 3)² = 4, determine
(V x F) - ds, where
S
F = (2-y, x4, xz). Round to the nearest hundredth.
Hint: Consider using a parametrization of the boundary of the form
r(t) = (xo + a cos (t), yo + b sin (t), 0).
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