77777
77777
Instructor(s):
Rinzler/Qiu
PHYSICS DEPARTMENT
PHY 2053
Exam 1
February 23, 2011
Name (print, last ﬁrst):
Signature:
On my honor, I have neither given nor received unauthorized aid on this examination.
YOUR TEST NUMBER IS THE 5DIGIT NUMBER AT THE TOP OF EACH PAGE.
(1)
Code your test number on your answer sheet (use lines 76–80 on the answer sheet for the 5digit number)
.
Code your name on your answer sheet.
DARKEN CIRCLES COMPLETELY
. Code your UFID number on your
answer sheet.
(2) Print your name on this sheet and sign it also.
(3) Do all scratch work anywhere on this exam that you like.
Circle your answers on the test form.
At the end of the
test, this exam printout is to be turned in. No credit will be given without both answer sheet and printout.
(4)
Blacken the circle of your intended answer completely, using a #2 pencil or blue
or black
ink
. Do not
make any stray marks or some answers may be counted as incorrect.
(5)
The answers are rounded oﬀ. Choose the closest to exact. There is no penalty for guessing. If you
believe that no listed answer is correct, leave the form blank.
(6) Hand in the answer sheet separately.
Use
g
= 9
.
80 m/s
2
1. Two points are given in polar coordinates as (
r
1
,θ
1
) = (10
.
3m
,
45
.
0
◦
) and (
r
2
,θ
2
) = (7
.
6m
,
225
.
0
◦
). The distance between
the two points is:
(1) 17.9 m
(2) 15.2 m
(3) 12.7 m
(4) 10.3 m
(5) 8.9 m
2. 4 quarts = 3.786 liters and 1000 cm
3
= 1 liter. An ice cream company is going to distinguish its product by selling
its one quart of ice cream in cubical metal containers. The inside edge length (in centimeters) of that cubical quart
container is:
(1) 9.818
(2) 10.00
(3) 9.465
(4) 9.212
(5) 9.028
3. A position vector is 3.00 m long at an angle of 30
◦
measured counterclockwise from the positive yaxis. The signed x
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 Fall '06
 Buchler
 Physics

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