Physics P41F15: Exam 2.
Name:_
Write directly on these sheets. Some problems expect short answers and do not need
justification. You may use a calculator. You may use the 35 card (or A4 sheet) if you brought
one; staple it to the exam. The exam ends with
PHYS 41, Spring 2016, Homework 5
Due February 23, 2016 (Tuesday), must be turned in in person at the beginning of class. Late arrivals will
not be accepted.
1. Finish reading Chapter 21.
2. Complete the worksheet below (scroll to the next page).
3. Solve
Formula Sheet 1, Physics 42
Physical Constants
Electrostatics
Coulombs law:
e = elementary charge = 1.60 1019 C
31
me = mass of electron = 9.11 10
F =K
kg
mp = mass of proton or neutron = 1.67 1027 kg
0 = permittivity of free space = 8.85 1012 C /Nm2
2
K
Name: _
Gausss Law
Work together and use your notes and textbook to solve the problems, but each student submits their
own worksheet and solutions
. Staple your solutions to this worksheet.
The left hand side of Gausss law: e = E dA
Spherical symmetry:
e
Spring Length (m)
Spring 1
Spring 2
Spring 3
Spring Mass (kg)
0.255
0.084
0.055
Added Weight (kg)
Spring 1 Displacement (m)
0.02
0.05
0.07
0.1
0.12
0.15
0.024
0.049
0.073
0.104
0.123
0.156
0.1734
0.00916
0.00896
Spring 1 Spring Force (N)
0.196
0.49
0.686
Physics 40 Exam 1, Page 2 of 6 June 24, 2015
1. (10 points) A 3kg object starts from rest and accelerates as shown in the graph.
(a) Determine the objects speed at 15:20 s.
W t west-s) gin/82>
~1
3 . W w W.) 3
3%
3
l.
3.
(b) Determine the distance tra
Physics 40 Exam 1 February 10, 2015
Show your work in the spaces provided on the question sheets. If you run out of room for
an answer, continue on scratch paper. Include your units. Box your answers.
Name: Physics 40 Exam 1, Page 2 of 6 February 10, 20
Physics 40
Exam 2
October 7, 2015
Show your work in the spaces provided on the question sheets. If you run out of room for
an answer, continue on scratch paper. Include your units. Box your answers.
Name:
Lab day and time (e.g. Tues 12:00):
Question
Point
Physics 43 Quiz 4 Spring 2017
Print Name:_
50 points. Show all your work for any credit. Box final numerical answers. Neatness counts! For the handout
on the photoelectric effect use this PHET: http:/phet.colorado.edu/en/simulation/photoelectric
Attach th
Physics 40
Exam 1
February 10, 2015
Show your work in the spaces provided on the question sheets. If you run out of room for
an answer, continue on scratch paper. Include your units. Box your answers.
Name:
Question
Points
1
10
2
10
3
10
4
10
5
10
Total:
Physics 40
Exam 1
June 24, 2015
Show your work in the spaces provided on the question sheets. If you run out of room for
an answer, continue on scratch paper. Include your units. Box your answers.
Name:
Question
Points
1
10
2
10
3
10
4
10
5
10
Total:
50
S
Formula Sheet, Physics 40
1
Mathematics
x=
b
b2
4ac
Kinematics in 2-D
Position:
Position:
s
2a
2
a + b 2ab cos = c
~r = x + y
Displacement:
a2 + b2 = c2
2
Kinematics in 1-D
Displacement:
s = sf si
2
Velocity:
vavg =
Circumference = 2r
~r = x + y
Velocit
Formula Sheet, Physics 40
1
Rigid Objects
Torque
Energy
Center of mass:
= rF sin = dF
Rotational kinetic energy:
1 X
xcm =
mi xi
ycm =
M
Z
1
xcm =
x dm
ycm =
M
Moment of inertia:
Z
I = r2 dm
1 X
mi yi
M
Z
1
y dm
M
Iobject = I1 + I2 + I3 +
Parallel axis
Formula Sheet, Physics 40
1
Mathematics
x=
Forces
b
b2
4ac
Rotational Motion
~net
F
2
a + b = c2
N
X
~i = F
~1 + F
~2 + + F
~N
F
i=1
a2 + b2 2ab cos = c2
~a =
360 = 2 radians
ax =
Derivative = Slope of tangent line
~net
F
m
~net = m~a
F
(Fnet )x
m
ay =
PHYS 43 Fall 2015 Final Formulas
!
Gamma: = 1/ 1 2
Time dilation: t = t0
Length contraction: L = L0 /
Lorentz transformations for frame S traveling at speed v with respect to frame S.
x = (x vt)
y = y
z = z
t = (t vx/c2 )
ux v
Relativistic velocity additi
PHYS 43 Exam 1 SOLUTIONS, 2/17-18/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions worth
15 points each (for a total of 30 points). For the
PHYS 43 Exam 2 Version A, 4/14-15/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions,
one worth 20 points and the other worth 10 points (for
PHYS 43 Exam 1, 2/17-18/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions worth
15 points each (for a total of 30 points). For the multiple
PHYS 43 Exam 2 Version B, 4/14-15/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions,
one worth 20 points and the other worth 10 points (for
PHYS 43 Exam 2 Version A, 4/14-15/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions,
one worth 20 points and the other worth 10 points (for
PHYS 43 Exam 2 Version B, 4/14-15/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions,
one worth 20 points and the other worth 10 points (for
PHYS 43 Exam 1, 9/29/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions worth
15 points each (for a total of 30 points). For the multiple cho
PHYS 43 Exam 3 SOLUTIONS
Give yourself 2 hours to complete this exam. The exam consists of 25 multiple choice
questions worth 4 points each (for a total of 100 points).
You can rip off the last sheet which contains the provided formulas.
1
1: Wonder Woman
PHYS 43 Exam 2, 11/6/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions, both
worth 15 points (for a total of 30 points). For the multiple ch
PHYS 43 Final Exam SOLUTIONS, 12/15/2015
You have 3 hours to complete this exam. The exam consists of 25 multiple choice
questions worth 5 points each (for a total of 125 points) and three long questions,
two worth 20 points and the other worth 10 points
PHYS 43 Exam 1 SOLUTIONS, 9/29/2015
You have 2 hours to complete this exam. The exam consists of 14 multiple choice
questions worth 5 points each (for a total of 70 points) and two long questions worth
15 points each (for a total of 30 points). For the mu
PHYS 43 Exam 3 Practice
Give yourself 2 hours to complete this exam. The exam consists of 25 multiple choice
questions worth 4 points each (for a total of 100 points).
You can rip off the last few sheets which contains the provided formulas.
1
1: Wonder W