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P  1
PHYSICS 112
SUMMER 2005
Homework for June 14, 2005
Due in recitation during the first five minutes; after that, worth only 50% as
much.
Name
Section
In parts (1a) through (1c), consider the two dimensionless vectors
Eœ
Fœ
t
t
(3.10, 2.40)
and
(
3.60,
1.70).
(1a) Evaluate
, the magnitude of
.
EE
t
(1b) Evaluate
, the magnitude of
.
FF
t
(1c) Sketch and label these two vectors on an appropriatelylabeled coordinate system
below, drawing them approximately to scale. Label the four quadrants in the usual way.
Name the quadrant in which each vector is found.
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(2a) Suppose the vector
in the
plane has a magnitude of 6.40 N (6.40 newtons) and
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 Summer '08
 Fretwell
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