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Vector
Vector is physical magnitude has direction and quantity. Typically, velocity, force, acceleration is vector. Addition vector requires especially mathematical method. Because considering direction. Usually, we use parallelogram method to add vector.
(Figure a)
As upside figure, connect ea
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a direction to be described.
Q1.11 If the direction-angle of
rA
is between 180 degrees and 270 degrees, its components are both
negative. If a vector is in the second quadrant or the fourth quadrant, its components have opposite
signs.
Q1.12 The book’s displacement is zero, as it ends up at th
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vectors—refer to the individual elements of each as alpha(1,1), alpha(1,2), alpha(1,3), beta(1,1)
and beta(1,2).
Now we need to do some bookkeeping. Our first bookkeeping task is to compute values of p and
q, i.e., the dimensions of the alpha and beta vectors. The function %cols(A) returns
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Conclusion
You need to understand air resistance. Air resistance exists as a contact force. Air resistance, by definition, is the force resisting the relative motion of an object as it moves through air. ....
The experiment was rejected by counting a time. After I measured the time of the car, I
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z} hat a_z
(e2) Divergence of
vec A
The divergence of a vector is the limit of its surface integral per unit volume as the volume enclosed by the surface goes to zero, that is,
rm d i v it vec A ``=`` del cdot vec A ``=`` lim from{V 0} 1 over V int_s vec A cdot d vec s
The detail proof will be d
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