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Jeff Sanny, Loyola Marymount University
Dr. Jeff Sanny earned a BS in Physics from Harvey Mudd College in 1974 and a PhD in Solid State Physics from the University of California–Los Angeles in 1980. He joined the faculty at Loyola Marymount University in the fall of 1980. During his tenure, he has served as department Chair as well as Associate Dean. Dr. Sanny enjoys teaching introductory physics in particular. He is also passionate about providing students with research experience and has directed an active undergraduate student research group in space physics for many years.

Bill Moebs, PhD
Dr. William Moebs earned a BS and PhD (1959 and 1965) from the University of Michigan. He then joined their staff as a Research Associate for one year, where he continued his doctoral research in particle physics. In 1966, he accepted an appointment to the Physics Department of Indiana Purdue Fort Wayne (IPFW), where he served as Department Chair from 1971 to 1979. In 1979, he moved to Loyola Marymount University (LMU), where he served as Chair of the Physics Department from 1979 to 1986. He retired from LMU in 2000. He has published research in particle physics, chemical kinetics, cell division, atomic physics, and physics teaching.

Contributing authors

David Anderson, Albion College
Daniel Bowman, Ferrum College
Dedra Demaree, Georgetown University
Gerald Friedman, Santa Fe Community College
Lev Gasparov, University of North Florida
Edw. S. Ginsberg, University of Massachusetts
Alice Kolakowska, University of Memphis
Lee LaRue, Paris Junior College
Mark Lattery, University of Wisconsin
Richard Ludlow, Daniel Webster College
Patrick Motl, Indiana University–Kokomo
Tao Pang, University of Nevada–Las Vegas
Kenneth Podolak, Plattsburgh State University
Takashi Sato, Kwantlen Polytechnic University
David Smith, University of the Virgin Islands
Joseph Trout, Richard Stockton College
Kevin Wheelock, Bellevue College


Salameh Ahmad, Rochester Institute of Technology–Dubai
John Aiken, University of Colorado–Boulder
Anand Batra, Howard University
Raymond Benge, Terrant County College
Gavin Buxton, Robert Morris University
Erik Christensen, South Florida State College
Clifton Clark, Fort Hays State University
Nelson Coates, California Maritime Academy
Herve Collin, Kapi’olani Community College
Carl Covatto, Arizona State University
Alexander Cozzani, Imperial Valley College
Danielle Dalafave, The College of New Jersey
Nicholas Darnton, Georgia Institute of Technology
Robert Edmonds, Tarrant County College
William Falls, Erie Community College
Stanley Forrester, Broward College
Umesh Garg, University of Notre Dame
Maurizio Giannotti, Barry University
Bryan Gibbs, Dallas County Community College
Mark Giroux, East Tennessee State University
Matthew Griffiths, University of New Haven
Alfonso Hinojosa, University of Texas–Arlington
Steuard Jensen, Alma College
David Kagan, University of Massachusetts
Jill Leggett, Florida State College–Jacksonville
Sergei Katsev, University of Minnesota–Duluth
Alfredo Louro, University of Calgary
James Maclaren, Tulane University
Ponn Maheswaranathan, Winthrop University
Seth Major, Hamilton College
Oleg Maksimov, Excelsior College
Aristides Marcano, Delaware State University
Marles McCurdy, Tarrant County College
James McDonald, University of Hartford
Ralph McGrew, SUNY–Broome Community College
Paul Miller, West Virginia University
Tamar More, University of Portland
Farzaneh Najmabadi, University of Phoenix
Richard Olenick, The University of Dallas
Christopher Porter, Ohio State University
Liza Pujji, Manakau Institute of Technology
Baishali Ray, Young Harris University
Andrew Robinson, Carleton University
Aruvana Roy, Young Harris University
Abhijit Sarkar, The Catholic University of America
Gajendra Tulsian, Daytona State College
Adria Updike, Roger Williams University
Clark Vangilder, Central Arizona University
Steven Wolf, Texas State University
Alexander Wurm, Western New England University
Lei Zhang, Winston Salem State University
Ulrich Zurcher, Cleveland State University

Questions & Answers

what is vector
Abdulrahman Reply
A quantity having both magnitude and direction
How to calculate for overall displacement
Eseoghene Reply
Well, take Final Position-Starting position
what is velocity
Austine Reply
speed per unit time is called velocity. it is a vector quantity
velocity is distances overall time taking,it is a vector quantity, the units is metre per second.
frequency is rate at which something happens or is repeated. it is a vector quantity
what is the difference between resultant force and net force
Ogali Reply
net force is when you add forces numerically I.e. the total sum of all positive and negative or balanced and unbalanced forces. resultant force is a single vector which is the combination or addition of all x and y axes vector component forces in a system.
resultant force is applied to hold or put together an object moving at the wrong direction. in other words it repairs.
Damping is provided by tuning the turbulence levels in the moving water using baffles.How it happens? Give me a labelled diagram of it.
Shaina Reply
A 10kg ball travelling at 4meter per second collides elastically in a head-on collision with a 2kg ball.What are (a)the velocities and (b)the total momentum of the balls after collision?
Law Reply
a)v1 8/3s&v2 20/3s. b)in elastic collision total momentum is conserved.
multiply both weight which is 10*2 divided by the time give 4. and our answer will be 5.
The displacement of the air molecules in sound wave is modeled with the wave function s(x,t)=5.00nmcos(91.54m−1x−3.14×104s−1t)s(x,t)=5.00nmcos(91.54m−1x−3.14×104s−1t) . (a) What is the wave speed of the sound wave? (b) What is the maximum speed of the air molecules as they oscillate in simple harmon
Shaina Reply
the question is wrong. if you need assistance with displacement I can help out.
practical 1st year physics
Nsc Reply
allot of practicals, be specific with your topic and we can discuss.
Whats the formular for newton law of motion
Ahmad Reply
F=m×a Where F=force M=mass of a body of an object a=acceleration due to gravity
what is speed
Hassan Reply
distance travelled per unit of time is speed.
distance travelled in a particular direction it is.
Speed is define as the distance move per unit time. Mathematically is given as Speed = distance/time Speed = s/t
speed is a vector quantity. It is defined distance per unit time.It's unit in c.g.s cm/s and in S.I. m/s.It’s dimension is LT^-1
formula for velocity
Amraketa Reply
v=ms^-1 velocity=distance time
(p-a/v)(v-b)=nrt what is the dimension of a
velocity= displacement time
Velocity = speed/time
what are evasive medical diagnosis?
Shaina Reply
If the block is displaced to a position y , the net force becomes Fnet=k(y−y0)−mg=0Fnet=k(y−y0)−mg=0 . But we found that at the equilibrium position, mg=kΔy=ky0−ky1mg=kΔy=ky0−ky1 . Substituting for the weight in the equation yields. Show me an equation of graph.
where are you come from
samastipur Bihar
simple harmonic motion defination
Maharam Reply
how to easily memorize motion equation
how speed destrog is uranium
Sayed Reply
where can we find practice problems?
bonokuhle Reply
I'm not well

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Source:  OpenStax, University physics volume 1. OpenStax CNX. Sep 19, 2016 Download for free at http://cnx.org/content/col12031/1.5
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