The vector field F ( x , y , z ) = _______, defined for ( x , y , z ) ≠ ( 0 , 0 , 0 ) , is always directed toward the origin and is of length equal to the distance from ( x , y , z ) to the origin.
The vector field F ( x , y , z ) = _______, defined for ( x , y , z ) ≠ ( 0 , 0 , 0 ) , is always directed toward the origin and is of length equal to the distance from ( x , y , z ) to the origin.
The vector field
F
(
x
,
y
,
z
)
=
_______,
defined for
(
x
,
y
,
z
)
≠
(
0
,
0
,
0
)
,
is always directed toward the origin and is of length equal to the distance from
(
x
,
y
,
z
)
to the origin.
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.
Vz(x, y)
V + y
have the
Show that all the vectors in vector field F
same length, and state the length of the vectors.
Sketch the vector field F(x,y)=1/2xi-1/2yj at points (-1,1), (-1,0),(-1,1),(0,-1),(0,0),(0,1),(1,-1),(1,0),(1,1)
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-z2, y20,
and oriented in the positive y- direction.
(Use symbolic notation and fractions
where needed.)
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