Experiment 6: Blackwood Ballistics Pendulum
Dr. Zhang
Phys Lab Section 1113-A
3/8/12
Abstract: During this lab we were asked to use a ballistics pendulum to find the velocity of the
ball when it is shot out of the muzzle. Yet another aspect that we were a
PHYS 2212 Chapter 28 Homework Solution
28.2:
Btotal = B + B =
0
4
qv q v
2+ 2
d
d
(8.0 10 6 C)(4.5 106 m s) (3.0 106 C)(9.0 106 m s)
+
(0.120 m) 2
(0.120 m) 2
4
B = 4.38 10 T, into the page.
B=
0
4
28.6: a) q = q; Bq =
(i) v =
0 qv
qv
Bq = 0 2 out
PHYS 2212 Homework Solutions Chapter 32 (1, 7, 8, 14, 28)
3.84 10 8 m
d
= 1.28 s.
32.1: a) t = =
c 3.00 10 8 m s
b)Light travel time is:
8.61 years = (8.61 years)
(365 days) (24 hours) (3600 s)
= 2.72 10 8 s
(1 year)
(1 day) (1 hour )
d = ct = (3.0 10 8 m
Homework Solutions PHYS 2212 Fall Ch 34(3, 4, 7, 16, 19, 23, 24, 25)
34.3: A plane mirror does not change the height of the object in the image, nor does the
distance from the mirror change. So, the image is 39.2 cm to the right of the mirror, and
its hei
Last Name:
First Name:
Physics 102 Spring 2007: Final Exam Multiple-Choice Questions
1. The circuit on the left in the gure below contains a battery of potential V and a variable resistor
RV . The circuit on the right in the gure below contains an ideal v
Last Name: First Name:
Physics 102 Spring 2002: Final Exam, May 6, 2002
Free Response and Instructions
0 PrintyourLASTandFmSTmmemthefrontofyourblmbookmnthisqueatinnaheet,themultiple-
choice question sheet and the nntiple-choice answersheet.
o TIMEALLOWED3
I. (30 points) A very long, thin wire carries a positive uniform linear charge density +A. The wire lies in the
z — y plane, making an angle of 45° to the x—axis. In addition to the wire. a single negative point charge
—Q lies on the :r: — axis at a: = 6.
(,4) (JADOSQ +X-Jdreol-tm Jm Wrﬁk‘.‘ 1)? ~ . 5-Vb
Physics 151 Roster No.2
Due: Friday, April 20, 2007 _
Score: PM A '- 7— . barbie,
Take-Home Midterm Exam #3, Part A Toi-u—l‘. go Fig. Wide,
N0 exam time limit. Calculator required. All books and notes are
PHYSICS 140A : STATISTICAL PHYSICS
PRACTICE FINAL EXAM
105 POINTS TOTAL
(1) A pair of spins is described by the Hamiltonian
h = J S 0 H (S + ) ,
(1)
where S takes values 1, 0, or +1 (three possibilities) and takes values 1 but not 0 (two
possibilities).
(
PHYS 2212 Chapter 27 Homework Solutions
27.1: a) F = qv B (1.24 10 8 C)(3.85 10 4 m s )(1.40 T)( i )
j
F = (6.68 10 4 N)k.
b) F = qv B
F = ( 1.24 10 8 C)(1.40 T)[( 3.85 10 4 m s )( k ) + (4.19 10 4 m s)(i k )]
j
F = (6.68 10 4 N) i + (7.27 10 4 N) .
j
PHYS 2212 Homework solutions CHAPTER 25 (1, 4, 11, 15, 19, 22, 32, 35, 42, 44)
25.1: Q = It = (3.6 A)(3)(3600 s) = 3.89 10 4 C.
25.4: The cross-sectional area of the wire is
A = r 2 = (2.06 103 m) 2 = 1.333 10 5 m 2 .
The current density is
I
8.00A
J= =
=
Phys 2212 Chapter 26 Homework Solutions
1
26.2:
1
1
R1 + R2
R1 R2
1
Req = +
R R = R R Req = R + R .
2
1
2
1
12
R2
R1
Req = R1
< R1 and Req = R2
< R2 .
R1 + R2
R1 + R2
26.3: For resistors in series, the currents are the same and the voltages add. a)tr
Experiment 7: Rotational Motion
Dr. Zhang
PHYS Lab section 1113-A
3/31/12
Abstract: During this lab we took time measurements of rotational motion of a wheel attached to
a falling mass. We used this information as well as the mass and radius of the wheel
Experiment 8: Torque and Static Equilibrium
PHYS Lab Section 1113-A
Dr. Zhang
3/23/2012
Abstract:
In this lab we set up a fulcrum in which we were to record the equilibrium point without
any masses hanging from it and then add weights to the fulcrum to fi
Experiment 9: Tip or Slide?
PHYS Lab section 1113-A
Dr. Zhang
4/6/12
Abstract:
In this lab we learned more about the static friction of a block on different surfaces
including metal, paper, and sandpaper. We found the angle that was necessary to get the b
Experiment 11: Hookes Law and Simple Harmonic Motion
PHYS Lab section 1113-A
Dr. Zhang
4/12/12
Abstract:
In this lab we examined an oscillating pendulum and then we used our data to find out
what affects the period of oscillation the most. Not only did we
Experiment 11: Period of oscillation for a simple Pendulum
PHYS Lab section 1113-A
Dr. Zhang
4/12/12
Abstract:
In this lab we examined an oscillating pendulum and then we used our data to find out
what affects the period of oscillation the most. Not only
Experiment 4: The Atwood Machine
PHYS Lab Section 1113-A
Dr. Zhang
2/23/2012
Abstract:
In this lab we set up an apparatus in which we were to record the amount of time it takes
for a mass to fall from the same height while being resisted from another on a
Experiment 2: Acceleration of a Freely Falling Body
Phys Lab Section 1113-A
Dr. Zhang
2/16/2012
Abstract:
In this lab we measured different aspects of a freely falling object. In part one of the lab
we measured time, velocity, distance, and acceleration i
COMPREHENSIVE PHYSICS
OUTLINE FOR EXAM #1 CHAPTERS 13
1. Note the difference between and physical change and chemical change
for matter.
2. Distinguish between the three general classes of matter: elements,
compounds and mixtures. What is the difference b
PHYS 2112
Significant Figures in Data
Key Questions
1.Inmeasuringtime,whichvalueinthemodelrepresentsthetruevalue?
Bureau of Standards Time
2.Whosewatchismoreaccurate?Explain.
Jerrys analog watch because it is the closest to the actual time.
3.Whosewatchis
PHYSICS 140A : STATISTICAL PHYSICS
FINAL EXAMINATION SOLUTIONS
100 POINTS TOTAL
(1) Consider a system of N independent, distinguishable S = 1 objects, each described by
the Hamiltonian
h = S 2 0 H S ,
where S cfw_1, 0, 1.
(a) Find F (T, H, N ).
[10 points