2/26/15
Lab 4: Distraction and Reaction Time
3.5 PRELAB EXERCISES
1. Assume that a ruler is initially suspended such that its lower end is at height, h = 0. The ruler
is then dropped and allowed to accelerate, towards the earth, under the influence of gra
2/10/15
Lab 3: The Nature Of Statistical Processes
In-line questions:
6. Mean: 105.013.8ct/sec
7. 1/100th of a second because in one second, 100 events occur. Therefore if we want to isolate
a single event it would be logical to divide by 100. By doing th
9/23/2013
Lab 2-Reaction Time: What effect does talking or texting really have?
1.
Procedure:
Not Distracted Procedure:
1. Place a ruler in the aluminum shield. Have the experimenter hold the ruler in place.
2. Drop the ruler without warning the test subj
Announcements
Midterm 2 grades posted on Blackboard, along
with example solu;ons
Lowest midterm score will be dropped
Lowest prelecture, checkpoint, online homework,
wri=en homework and clicker scores will be dropped
Announcements
1)
2)
Homework 9 due today at 10 pm (online) and in sec:on
tomorrow (wri;en)
Midterm 3, covering prelectures 14 20, will be given on
Friday November 15 at 8 am in the same rooms as Midterm 2
Announcements
1) Homework 9 due for Thursday at 10 pm (online)
and in sec=on on Friday (wri?en)
2) Midterm 3, covering prelectures 14 20, will be
given on Friday November 15 at 8 am in the
same rooms as Midterm
General Physics 1
Announcements
Homework 3 is due online at 10 pm Thursday
Midterm Exam 1 is this Friday 9/27 at 8 am
Will cover prelectures 1 6, class meeJngs through
today, homeworks 1 3
Will be open
Welcome to Physics 102!
Physics is the most fundamental of the sciences, and a beautiful
and exciting subject. This semester we will be studying classical
mechanics.
You will need two items for this class. If at all possible, please try to acquire the fir
Announcements
Homework 1 is due online at 10 pm tonight, with wri9en
version due in sec;on tomorrow
Next Tuesday: Prelecture 4 and Checkpoint 4
Physics tutoring room (Rm. 261) is open 2 8 pm today
Regular
General Physics 1
Administra3ve
Example homework solu3ons will posted on Blackboard
later today
Complete survey at
h?ps:/www.surveymonkey.com/s/8SPQ3YL
Homework 2 is due online Thursday at 10 pm
Policy: late home
Welcome to
General Physics
General Physics 171.101
Instructor: David Neufeld (call me David)
Email: [email protected]
Oce: Bloomberg 509
Oce hours: Wednesdays, 9:30 am 12:30 pm
Graduate student Teaching Assistants
2/10/15
Lab 2: Data Analysis with Spreadsheets
1. As part of this tutorial, discuss some of the possible problems with the measured
values of v and h. How would a biased measurement in velocity or height effect
this measurement?
Biased Measurement in Heig
General Physics 1
Announcements
Homework 2 is due online at 10 pm tonight
Midterm Exam 1 will take place Friday September
27th at 8 am
LocaEon to be announced next week
Will cover prelectures 1 6, class
Announcements
View Smart Physics prelecture and complete
checkpoint by 8 am before each class
For Thursday: Prelecture 3 and Checkpoint 3
Note that you can register for a free 30-day trial
Homework 1 is due on
Announcements
Homework 7 is due online tonight at 10 pm. Bring wri;en
version to exam tomorrow
TOMORROW at 8 am for ALL secFons: Midterm Exam 2
Will cover Prelectures 7 13
Similar in style to Midterm
General Physics 1
A yo-yo on a horizontal surface,
iniCally at rest
Pull gently on the string as shown: which way
will the yo-yo move?
1) Roll to the right
T
2) Roll to the le<
3) Remain in place
N W FS
3/31/15
Physics 2 Lab
Lab 8: Conservation of Momentum
Prelab:
2.5 EXERCISES:
1. Through the laws of conservation of energy and momentum we derive the following
equations:
Equation 1 can be rearranged to give rise to:
Eq. 2 can be rearranged to give rise t
Announcements
Homework 7 is due online Thursday at 10 pm. Bring wri=en
version to exam on Friday
This Friday 10/25 at 8 am for ALL secGons): Midterm Exam 2
Will cover Prelectures 7 13
Similar in style
Announcements
Homework 3 is due online at 10 pm tonight
No sec:on, so bring wri=en version to exam tomorrow
Midterm Exam 1 is tomorrow Friday 9/27 at 8 am
Will cover prelectures 1 6, class mee:ngs through
Lab 1: Introduction to Measurements
1. 6.5 .1cm
2. 63.41 .01mm, This measurement seems more accurate than the result from exercise 1. It is
also smaller than the value from exercise 1 but it is close in value.
3. 57.09.01mm, It is the same in theory becau
3/24/15
Lab 7: Arm Model
Prelab:
1. Sum of the torques will equal zero therefore Tau_i will be equal to the neg value of
Tau_o. Tau_i= 20cm*Fi and Tau_o=100cm*Fo.
2. MA=(-rin/rout), Tau_out=-Tau_in
Characterizing the Spring:
Procedure:
1. Measured initial
Ch. 43 Page 1
CHAPTER 43 Nuclear Energy; Effects and Uses of Radiation Note: 1. A factor that appears in the analysis of energies is e2/4p0 = (1.60 1019 C)2 /4p(8.85 1012 C2/N m2)= 2.30 1028 J m = 1.44 MeV fm.
We find the product nucleus by bal
Ch. 42 Page 1
CHAPTER 42 Nuclear Physics and Radioactivity Note: A factor that appears in the analysis of energies is e2/4p0 = (1.60 1019 C)2/4p(8.85 1012 C2/N m2) = 2.30 1028 J m = 1.44 MeV fm.
1.
To find the rest mass of an particle, we subt
Chapter 41
p. 1
CHAPTER 41 Molecules and Solids Note: At the atomic scale, it is most convenient to have energies in electron-volts and wavelengths in nanometers. A useful expression for the energy of a photon in terms of its wavelength is E = hf
Ch. 45
Page 1
CHAPTER 45 Astrophysics and Cosmology Note: A factor that appears in the analysis of energies is e2/4p0 = (1.60 1019 C)2/4p(8.85 1012 C2/N m2) = 2.30 1028 J m = 1.44 MeV fm. 1. Using the definition of the parsec, we find the equiv
171.102/108 Section Assignment 3 Solutions
1. Q = V C so V = CQ1 is the potential difference from end of the capacitor to the other. This is the
same as the potential difference between x1 and x2 , because a path connecting x1 and x2 can be
drawn by going
102/108 Written Homework 3 Solutions
Problem 1
(a)
In each of the three regions, we can consider a Gaussian sphere centered on
the origin whose surface intersects the point at which we want to evaluate the
field. The charge distribution is fully spherical
102/108 Written Homework 2 Solutions
1
1.a
Problem 1
An infinite plate
For an infinite plate of charge, the electric field will be perpendicular to the surface. Because of translational
symmetry, the electric field must be homogeneous. But the magnitude c
171.102/108 Homework Week 4 - Solutions
1. We should remember the equation relating capacitance to charge and potential, q = V C. Let us
label the capacitors C1 , C2 and C3 as well as the potentials V1 , V2 and V3 to match the charges
on the capacitors. N
171.102/108 Homework Week 5 Solutions
March 10, 2017
1. a) Since we are near the Earths surface, we can say that the direction perpendicular to Earths
surface is always z. We have some density of positive ions n+ and some density of negative ions n . If
w