Find an explicit coordinate expression for the vector field F x , y that at every point x , y ≠ 1 , 2 is the unit vector directed from x , y to 1 , 2 .
Find an explicit coordinate expression for the vector field F x , y that at every point x , y ≠ 1 , 2 is the unit vector directed from x , y to 1 , 2 .
Find an explicit coordinate expression for the vector field
F
x
,
y
that at every point
x
,
y
≠
1
,
2
is the unit vector directed from
x
,
y
to
1
,
2
.
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.
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.)
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.
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