Physics 33
Final Exam
Name
_______________________________
Monday, December 8, 2003
This test is closed book, closed notes.
No calculators, please.
You may use a handwritten, 3” by 5” card.
•
Leave any
π
’s in answers as
π
.
USE NO PHYSICAL CONSTANTS OTHER THAN THOSE
GIVEN.
•
If
any
numerical values are given in a problem, a numeric answer is expected.
FULL CREDIT
WILL NOT BE GIVEN
for answers that contain mathematical operations!
•
For full credit, you must explain or show how your answers are obtained.
Do not state the result of a
homework, inclass, or textbook problem without proof!
•
What to do if you run out of room on a page:
FLIP
your test and write on the back.
(Which means
you
shouldn’t
write on the back of the page on which you just ran out of room!)
This test consists of 6 numbered questions on 7 pages!
This cartoon is copyright protected (copyright © Sidney Harris) and reproduced without permission under a claim of fair use.
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View Full DocumentPhysics 33
Final Exam
Initials
______
Monday, December 8, 2003
1)
(18 points)
Two point objects each carrying a positive charge
Q
1
= Q
2
= 125C
are located a
distance
D = 6 m
apart.
a)
A third, negative charge
Q
3
= –50C
is added.
The electric
field at point P is found to be
E =
0
10
4
πε
N/C
pointing in the
positive vertical direction.
Find the location of
Q
3
.
Point P is
a distance
H = 4m
above the line connecting the charges and
along the perpendicular bisector of the line.
b)
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 Spring '09
 Kesten
 Physics, Electric charge, Series and parallel circuits, Final Exam Monday

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