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School: BYU
Course: Physics 105
Newtonsthirdlaw Forcesalwayscomeinpairs,oneoneachobjectinthe pair.Themagnitudesoftheforcesinapairarealways _,andthedirectionis_. (Theydonotcanceleachotherbecausetheyareondifferentobjects) Demo:cartsandropes Newtonsthirdlaw Showallthethirdlawforce pairsand
School: BYU
Course: Physics 105
Work Who does the most work? A. the one who lifted the weight to the table B. the one who moved the weight to the far end of the table C. same work done. Definition of work in physics: Work (done by the force F): the component of force along the displacem
School: BYU
Course: Physics 105
Projectile motion 2-dimensional motion of an object launched non-vertically Falls freely (neglect air resistance unless I tell you otherwise) Only y motion has acceleration, force Imagine shadow of ball on the wall. on the ground P1. Bob is loading his gu
School: BYU
Course: Physics 105
Impulse If an objects momentum has changed, we say it has r r received an impulse p F t . No new physics here, just r r F ma A 100 kg defensive end running north at 4 m/s tackles a 80kg quarterback running south at 7 m/s. Football: 100*4-80*7 = 180 v v= -
School: BYU
Course: Physics 105
Springsandotherstretchythings Hookes Law: Springsstoreenergy(conservative) Springpotentialenergy P1. If a spring is compressed by 20 cm, the work done in the first 10 cm is A. less than B. the same as C. more than the work done in the last 10 cm. Hint: th
School: BYU
Course: Physics 105
Vectorsandmotionin2D Addingvectorstofindtotaldisplacement Method1:Graphicaladdition: Tailofnextvectorontipofprevious Addingvectorstofindtotaldisplacement Method2:Addingxandycomponents SP1.8 Addingvectorstofindtotaldisplacement Method2:Addingxandycomponent
School: BYU
Course: Thermodynamics
Exam 4 Today last regular day Tomorrow (Saturday) is the late day Your study guide is the homework! Final Exam All Finals week in the RB Same format, same rules as midterms, but no free response - one page of notes - bring a calculator, scratch paper, p
School: BYU
Course: Thermodynamics
Exam 4 Final Exam Announcements Multiple choice (16 questions) no free response All problems directly from midterms and practice exams new numbers, some new names Course Evaluations extra 0.5% on final grade Check that scores are recorded correctly! R
School: BYU
Course: Thermodynamics
Exam 3 Wed-Fri (Saturday late day) Bring a ruler Correct CID! Stapled neatly Finding f from R, mirror vs lens (reflector in LED flashlight) Sign Conventions (p, q, f, R, M) Virtual/Real, Upright/Inverted Near- and farsighted (also like 20.3) Light diffr
School: BYU
Course: Thermodynamics
Test 2 Started Today Ends Wednesday Feb 26 Late day Thursday Feb 27 16 Multiple Choice 4 Free Response Give yourself plenty of time! Hot air balloon problem 10.4 Gondola, passengers, deflated balloon have mass m. Inflated balloon has volume V. Air out
School: BYU
Course: Thermodynamics
#13 from the practice test Two speakers are driven by the same oscillator such that they are both emitting waves in phase with each other with a wavelength of 5.04 meters. The first speaker is a distance of 1.96 meters from me, and I put the second speake
School: BYU
Which paper is the most absorbent? Wearefindingoutwhichpaperisthemostabsorbentandwillbethebestpaperto mopupspills. My prediction: Mypredictionisthatthe_willbethemost absorbent. Ithinkthisbecause_ _ Results: Typeofpaper. Did/didnotabsorb water. Amountofwa
School: BYU
Course: Thermodynamics
Extra credit video missing. Instead . . . Science, Faith, and the Nobel Prize Read it at http:/ps100.byu.edu/phillips%20forum% 20transcription.pdf Listen at http:/speeches.byu.edu/?act=viewitem&i d=966 dsd2 Fission: Heavy Elements can reduce energy (i.e.
School: BYU
Course: Thermodynamics
Postulates of Quantum Mechanics Every physically-realizable system is described by a state function that contains all accessible physical information about the system in that state The probability of finding a system within the volume dv at time t is equ
School: BYU
Course: Thermodynamics
Final Exam 146 Richards Building Fri April 18 to Wed April 23 Open 9 a.m. to 10 p.m. Last test handed out at 8 p.m. Rate the Tutors! http:/gardner.byu.edu/tas/tutorrating.php Types of radioactive decay Gamma Beta (+,-, e.c.) Alpha Neutron emission Fi
School: BYU
Course: Thermodynamics
Louis de Broglie If light, which we thought of as a wave, behaves as a particle, then maybe things we think of as particles behave as waves photo from http:/www.aip.org/history/heisenberg/p08.htm Energy/Frequency and Momentum/Wavelength Relations for a Ph
School: BYU
Course: Thermodynamics
Blackbody Radiation Max Planck, Plancks constant Max Karl Ernst Ludwig Planck Found an empirical formula which fit the measured blackbody curve Looked for way to derive this empirical formula Photo from http:/www-groups.dcs.st-and.ac.uk/~history/PictDispl
School: BYU
Course: Thermodynamics
Pay close attention . . . because Galilean Relativity Galilean Relativity I drive past a baseball field traveling north at 25 MPH. A player throws the ball south at a speed (relative to the ground) of 70 MPH. What is the speed of the ball in my inertial r
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 3, March 19 - 22 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. Foreign students may also use a Foreign to English dictionar
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 2, Feb 24 - 27 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. Foreign students may also use a Foreign to English dictionary
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 1, Feb 3 - 6 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. No time limit. Each multiple choice problem is worth 4 points. U
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Fall 2013 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam #4, Dec 6 - Dec 10 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. No time limit. The rst part of this exam consists of multipl
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Fall 2013 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam #1, Sept 27 - Oct 1 Allowed: One sheet of notes, pencils, scratch paper, calculator. No time limit. There are two parts to this exam. The rst part cons
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Fall 2013 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam #3, Nov 11 - Nov 14 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. No time limit. The rst part of this exam consists of multip
School: BYU
Course: Mechanics
Physics 321 Homework 17 For more complicated systems, you have to be careful about your expressions for kinetic and potential energy. Each term in the kinetic and potential energy equations must be independent of each other. Work problem 7.29 from the te
School: BYU
Agroupoflemmings jumpoffacliffwith ahorizontalvelocity of3.5m/sandland inthewatera distanceof5.4m fromthecliff.What istheheightofthe cliff? Aplanedropsabombfromanaltitude of500m.Itlands400metersaway. Howfastwastheplaneflying? Joedropsacherrypitfromthecar
School: BYU
School: BYU
Course: Physics 105
Newtonsthirdlaw Forcesalwayscomeinpairs,oneoneachobjectinthe pair.Themagnitudesoftheforcesinapairarealways _,andthedirectionis_. (Theydonotcanceleachotherbecausetheyareondifferentobjects) Demo:cartsandropes Newtonsthirdlaw Showallthethirdlawforce pairsand
School: BYU
Course: Physics 105
Work Who does the most work? A. the one who lifted the weight to the table B. the one who moved the weight to the far end of the table C. same work done. Definition of work in physics: Work (done by the force F): the component of force along the displacem
School: BYU
Course: Physics 105
Projectile motion 2-dimensional motion of an object launched non-vertically Falls freely (neglect air resistance unless I tell you otherwise) Only y motion has acceleration, force Imagine shadow of ball on the wall. on the ground P1. Bob is loading his gu
School: BYU
Course: Physics 105
Impulse If an objects momentum has changed, we say it has r r received an impulse p F t . No new physics here, just r r F ma A 100 kg defensive end running north at 4 m/s tackles a 80kg quarterback running south at 7 m/s. Football: 100*4-80*7 = 180 v v= -
School: BYU
Course: Physics 105
Springsandotherstretchythings Hookes Law: Springsstoreenergy(conservative) Springpotentialenergy P1. If a spring is compressed by 20 cm, the work done in the first 10 cm is A. less than B. the same as C. more than the work done in the last 10 cm. Hint: th
School: BYU
Course: Physics 105
Vectorsandmotionin2D Addingvectorstofindtotaldisplacement Method1:Graphicaladdition: Tailofnextvectorontipofprevious Addingvectorstofindtotaldisplacement Method2:Addingxandycomponents SP1.8 Addingvectorstofindtotaldisplacement Method2:Addingxandycomponent
School: BYU
Course: Physics 105
A train leaves Provo for SLC at 8:00 am, going 10 mph. A second express train leaves Provo for SLC at 9 am, going 15 mph. It is 40 miles to SLC. Will the 2nd train catch up before SLC? Where? Ifsomeoneonthefirsttrainlooksbackandseesthe secondtraingettingc
School: BYU
Course: Physics 105
IsaacNewton:1600s,England Force:Apushorpullbetweenpairsofobjects Massisameasureof resistanceto acceleration Mass(inertia)vsweight How do astronauts know which chocolate milk carton is empty? Mass m: a measure of _ Weight W = Newtonssecondlaw The accelerat
School: BYU
Course: Physics 105
Forcesatanangle:Sayinggoodbyeto N=mg You have to get N right to get friction right! Any forces with a y component will change N. Inclinedplanes(ramps,slopes) If there is no friction, what is a? Inclinedplanes(ramps,slopes) What is the Inclinedplanes A 500
School: BYU
Course: Physics 105
Physics 105 max.byu.edu website Schedule Reading reports (1 and 2 due tonight) Homework (1-3 due Sat) Clickers Exams-see syllabus Kinematics mathematical description of motion (1-D for now) position x(t) velocity v(t) acceleration a(t) Motion concepts you
School: BYU
Course: Thermodynamics
Exam 4 Today last regular day Tomorrow (Saturday) is the late day Your study guide is the homework! Final Exam All Finals week in the RB Same format, same rules as midterms, but no free response - one page of notes - bring a calculator, scratch paper, p
School: BYU
Course: Thermodynamics
Extra credit video missing. Instead . . . Science, Faith, and the Nobel Prize Read it at http:/ps100.byu.edu/phillips%20forum% 20transcription.pdf Listen at http:/speeches.byu.edu/?act=viewitem&i d=966 dsd2 Fission: Heavy Elements can reduce energy (i.e.
School: BYU
Course: Thermodynamics
Postulates of Quantum Mechanics Every physically-realizable system is described by a state function that contains all accessible physical information about the system in that state The probability of finding a system within the volume dv at time t is equ
School: BYU
Course: Thermodynamics
Exam 4 Final Exam Announcements Multiple choice (16 questions) no free response All problems directly from midterms and practice exams new numbers, some new names Course Evaluations extra 0.5% on final grade Check that scores are recorded correctly! R
School: BYU
Course: Thermodynamics
Physics 123 Homework Problems, Winter 2014 Section 1, Dallin Durfee 1-1. A very powerful vacuum cleaner has a hose [01] cm in diameter. With no nozzle on the hose, what is the weight of the heaviest brick it can lift? The atmospheric pressure is 1.00 atm.
School: BYU
Course: Thermodynamics
Final Exam 146 Richards Building Fri April 18 to Wed April 23 Open 9 a.m. to 10 p.m. Last test handed out at 8 p.m. Rate the Tutors! http:/gardner.byu.edu/tas/tutorrating.php Types of radioactive decay Gamma Beta (+,-, e.c.) Alpha Neutron emission Fi
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 3, March 19 - 22 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. Foreign students may also use a Foreign to English dictionar
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 2, Feb 24 - 27 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. Foreign students may also use a Foreign to English dictionary
School: BYU
Course: Thermodynamics
Louis de Broglie If light, which we thought of as a wave, behaves as a particle, then maybe things we think of as particles behave as waves photo from http:/www.aip.org/history/heisenberg/p08.htm Energy/Frequency and Momentum/Wavelength Relations for a Ph
School: BYU
Course: Thermodynamics
Blackbody Radiation Max Planck, Plancks constant Max Karl Ernst Ludwig Planck Found an empirical formula which fit the measured blackbody curve Looked for way to derive this empirical formula Photo from http:/www-groups.dcs.st-and.ac.uk/~history/PictDispl
School: BYU
Course: Thermodynamics
Pay close attention . . . because Galilean Relativity Galilean Relativity I drive past a baseball field traveling north at 25 MPH. A player throws the ball south at a speed (relative to the ground) of 70 MPH. What is the speed of the ball in my inertial r
School: BYU
Course: Thermodynamics
Lorentz transform The primed frame moves with velocity v in the x direction with respect to the fixed reference frame. The reference frames coincide at t=t'=0. Galilean Transformations (which are wrong) The Lorentz Transformations x' ( x vt) y' y z' z t '
School: BYU
Course: Thermodynamics
Where does 2 E=mc come from? Where does 2 E=mc come from? Where does 2 E=mc come from? Hydrogen atoms consist of one electron which is bound to a proton by electromagnetic forces. If I very carefully weigh a hydrogen atom, what will I get? A : The mass of
School: BYU
Course: Thermodynamics
Exam 3 Wed-Fri (Saturday late day) Bring a ruler Correct CID! Stapled neatly Finding f from R, mirror vs lens (reflector in LED flashlight) Sign Conventions (p, q, f, R, M) Virtual/Real, Upright/Inverted Near- and farsighted (also like 20.3) Light diffr
School: BYU
Course: Thermodynamics
Diffraction from a Single Slit Thought Question Consider a single slit diffraction pattern. At the first dark fringe above the middle bright fringe, what is the phase difference between the contribution to the field from the topmost and bottommost edges o
School: BYU
Course: Thermodynamics
The test . . . Correct CID or lose 5 points Note papers - stapled neatly to the answer sheet, or lose 5 points Horizontally Polarized Light Vertically Polarized Light Diagonally Polarized Light Circularly Polarized Light Elliptically Polarized Light Unpol
School: BYU
Course: Thermodynamics
Water Waves Water Waves Interference. A single source Interference. Two sources If two people walk toward a point and both start on the same foot-10 steps y 11 steps d At the point where they meet they are out of stepone is on the right foot and the other
School: BYU
Course: Thermodynamics
Why dont I see an interference pattern From two light bulbs? Coherence (temporal and spatial) Polarization Interference of BEC Phase Shift on Reflection of Light 1.0 Low n to high n 0.5 4 2 2 4 180 degree phase shift 0.5 1.0 1.0 0.5 High n to low n 4 2 2
School: BYU
Course: Thermodynamics
Test 2 Started Today Ends Wednesday Feb 26 Late day Thursday Feb 27 16 Multiple Choice 4 Free Response Give yourself plenty of time! Hot air balloon problem 10.4 Gondola, passengers, deflated balloon have mass m. Inflated balloon has volume V. Air out
School: BYU
Course: Thermodynamics
Angular Magnification Looking in Mirror first homework problem Magnifying Glass You buy a pair of generic reading glasses which have an angular magnification of 1.5 for objects which are near to the wearer. What is the focal length of the lenses in the gl
School: BYU
Course: Thermodynamics
Exam 4 Today last regular day Tomorrow (Saturday) is the late day Your study guide is the homework! Final Exam All Finals week in the RB Same format, same rules as midterms, but no free response - one page of notes - bring a calculator, scratch paper, p
School: BYU
Course: Thermodynamics
Exam 4 Final Exam Announcements Multiple choice (16 questions) no free response All problems directly from midterms and practice exams new numbers, some new names Course Evaluations extra 0.5% on final grade Check that scores are recorded correctly! R
School: BYU
Course: Thermodynamics
Exam 3 Wed-Fri (Saturday late day) Bring a ruler Correct CID! Stapled neatly Finding f from R, mirror vs lens (reflector in LED flashlight) Sign Conventions (p, q, f, R, M) Virtual/Real, Upright/Inverted Near- and farsighted (also like 20.3) Light diffr
School: BYU
Course: Thermodynamics
Test 2 Started Today Ends Wednesday Feb 26 Late day Thursday Feb 27 16 Multiple Choice 4 Free Response Give yourself plenty of time! Hot air balloon problem 10.4 Gondola, passengers, deflated balloon have mass m. Inflated balloon has volume V. Air out
School: BYU
Course: Thermodynamics
#13 from the practice test Two speakers are driven by the same oscillator such that they are both emitting waves in phase with each other with a wavelength of 5.04 meters. The first speaker is a distance of 1.96 meters from me, and I put the second speake
School: BYU
PhysicalScience 18:57 N252ESCfortutoriallabsandanswersforthisclass Goodwaytoreviewachapterisexaminethegraphsandpictures Whatismostlikelyontestisinbold(accordingtoTA) Chapter1 Whatdoweknowandhowdoweknow? Authority Someonesaiditsthatwayandwetrustwhattheysay
School: BYU
Exam 3 Review Chapter 9: 1. air pressure a. cold air is more dense, warm air is less dense b. atmospheric pressure changes faster with altitude in cold air c. warm air aloft high atmospheric pressure; cold air aloft low atmospheric pressure d. hot
School: BYU
Which paper is the most absorbent? Wearefindingoutwhichpaperisthemostabsorbentandwillbethebestpaperto mopupspills. My prediction: Mypredictionisthatthe_willbethemost absorbent. Ithinkthisbecause_ _ Results: Typeofpaper. Did/didnotabsorb water. Amountofwa
School: BYU
Course: Thermodynamics
Extra credit video missing. Instead . . . Science, Faith, and the Nobel Prize Read it at http:/ps100.byu.edu/phillips%20forum% 20transcription.pdf Listen at http:/speeches.byu.edu/?act=viewitem&i d=966 dsd2 Fission: Heavy Elements can reduce energy (i.e.
School: BYU
Course: Thermodynamics
Postulates of Quantum Mechanics Every physically-realizable system is described by a state function that contains all accessible physical information about the system in that state The probability of finding a system within the volume dv at time t is equ
School: BYU
Course: Thermodynamics
Final Exam 146 Richards Building Fri April 18 to Wed April 23 Open 9 a.m. to 10 p.m. Last test handed out at 8 p.m. Rate the Tutors! http:/gardner.byu.edu/tas/tutorrating.php Types of radioactive decay Gamma Beta (+,-, e.c.) Alpha Neutron emission Fi
School: BYU
Course: Thermodynamics
Louis de Broglie If light, which we thought of as a wave, behaves as a particle, then maybe things we think of as particles behave as waves photo from http:/www.aip.org/history/heisenberg/p08.htm Energy/Frequency and Momentum/Wavelength Relations for a Ph
School: BYU
Course: Thermodynamics
Blackbody Radiation Max Planck, Plancks constant Max Karl Ernst Ludwig Planck Found an empirical formula which fit the measured blackbody curve Looked for way to derive this empirical formula Photo from http:/www-groups.dcs.st-and.ac.uk/~history/PictDispl
School: BYU
Course: Thermodynamics
Pay close attention . . . because Galilean Relativity Galilean Relativity I drive past a baseball field traveling north at 25 MPH. A player throws the ball south at a speed (relative to the ground) of 70 MPH. What is the speed of the ball in my inertial r
School: BYU
Course: Thermodynamics
Lorentz transform The primed frame moves with velocity v in the x direction with respect to the fixed reference frame. The reference frames coincide at t=t'=0. Galilean Transformations (which are wrong) The Lorentz Transformations x' ( x vt) y' y z' z t '
School: BYU
Course: Thermodynamics
Where does 2 E=mc come from? Where does 2 E=mc come from? Where does 2 E=mc come from? Hydrogen atoms consist of one electron which is bound to a proton by electromagnetic forces. If I very carefully weigh a hydrogen atom, what will I get? A : The mass of
School: BYU
Course: Thermodynamics
Diffraction from a Single Slit Thought Question Consider a single slit diffraction pattern. At the first dark fringe above the middle bright fringe, what is the phase difference between the contribution to the field from the topmost and bottommost edges o
School: BYU
Course: Thermodynamics
The test . . . Correct CID or lose 5 points Note papers - stapled neatly to the answer sheet, or lose 5 points Horizontally Polarized Light Vertically Polarized Light Diagonally Polarized Light Circularly Polarized Light Elliptically Polarized Light Unpol
School: BYU
Course: Thermodynamics
Water Waves Water Waves Interference. A single source Interference. Two sources If two people walk toward a point and both start on the same foot-10 steps y 11 steps d At the point where they meet they are out of stepone is on the right foot and the other
School: BYU
Course: Thermodynamics
Why dont I see an interference pattern From two light bulbs? Coherence (temporal and spatial) Polarization Interference of BEC Phase Shift on Reflection of Light 1.0 Low n to high n 0.5 4 2 2 4 180 degree phase shift 0.5 1.0 1.0 0.5 High n to low n 4 2 2
School: BYU
Course: Thermodynamics
Angular Magnification Looking in Mirror first homework problem Magnifying Glass You buy a pair of generic reading glasses which have an angular magnification of 1.5 for objects which are near to the wearer. What is the focal length of the lenses in the gl
School: BYU
Course: Thermodynamics
Imaging Assumptions Thin Lens approximation Diameter of lens/mirror is much larger than the wavelength of light This lets us do ray approximations Well discuss what happens if this isnt true later Aberrations Making Images with Lenses and Mirrors Conv
School: BYU
Course: Thermodynamics
The Camera Which of the following is not important when determining the shutter speed you should use on a camera? A. B. C. D. E. The intensity of light striking the subject The distance between the subject and the camera The diameter of the lens The focal
School: BYU
Course: Thermodynamics
How are mirrors smart enough to swap up/down but not left/right? How far from a converging mirror should I put an object if the mirror has a radius of curvature of 1 meter and I want the image to be the same size as the object? A : less than 0.25 m B : 0.
School: BYU
Course: Thermodynamics
COP Refrigerators and Heat Pumps Reverse World http:/www.youtube.com/watch?v=EahHTh BjDB0 Test 2 Starts Monday Feb 24 Ends Wednesday Feb 26 Late day Thursday Feb 27 16 Multiple Choice 4 Free Response Give yourself plenty of time! Entropy is a measure
School: BYU
Course: Thermodynamics
Light a wave, a ray, or a particle? lambda = d/10 50 100 150 200 250 300 350 400 450 500 50 100 150 200 250 300 350 400 450 500 lambda = d/4 50 100 150 200 250 300 350 400 450 500 50 100 150 200 250 300 350 400 450 500 lambda = d 50 100 150 200 250 300 35
School: BYU
Course: Thermodynamics
A heat engine takes in 10 Joules of heat and exhausts 2 Joules. What is the engines efficiency? A. B. C. D. E. 0.200 0.800 2.00 1.60 None of the above Th Qh W Qc Tc Heat Engine Example P (a) - piston at room temp and atmospheric pressure a V Heat Engine E
School: BYU
Course: Thermodynamics
Adiabatic Processes PV cP cV constant air 7 5 Pressure/Temp and Vol/Temp Adiabatic Compression If I compress air at atmospheric pressure and room temperature by a factor of 10 the temperature will go up by 1. Less than 10 degrees C 2. Between 10 and 5
School: BYU
Course: Thermodynamics
Web Issues Should have received an email from me If not, send an email to dallin_durfee @byu.edu and Ill forward you a copy. Make sure your email is correctly registered with BYU so that you will receive future messages. Contact me at dallin_durfee @byu
School: BYU
Course: Thermodynamics
How did temperature end up in the ideal gas law? (average kinetic energy) Molar heat capacity at constant volume - Equal A Priori Molar heat capacity QV ncV T QP ncP T Which is bigger, cP or cV? A. B. C. D. cP cV They are the same It depends on the gas Fo
School: BYU
Course: Thermodynamics
Remember! When you use the ideal gas law, you have use KELVIN! Just Kelvin, not degrees Kelvin Heat is defined to be A. B. C. D. The amount of microscopic translational and rotational kinetic energy in an object Energy that is transferred to an object bec
School: BYU
Course: Thermodynamics
How tightly can I pack wiggling students into a classroom? A bronze sculpture of a cougar is sitting in the sun. In the morning, when the temperature is 20 degrees C, the tips of the ears are 11 cm apart. How much further apart are they when the sculpture
School: BYU
Course: Thermodynamics
With all the doors closed, a particular room is really well insulated except for a large single pane window, through which most of the heat loss occurs. The window is 3 meters wide, 2 meters tall, and 4 mm thick. An electric heater is used to keep the roo
School: BYU
Course: Thermodynamics
Standing Wave Levitation https:/www.youtube.com/watch?v=odJxJRAx dFU Beatboxing sound waves http:/youtu.be/V1Q1FFTga8k Exam KNOW YOUR CID!, If you add papers, staple well! Starts MONDAY Ends Thursday at close-Thursday is a late day, treat it as such! Y
School: BYU
Course: Thermodynamics
Stuff Friday 4 p.m. JSB Auditorium Dr. Mario Capecchi, a Nobel laureate and distinguished professor of Genetics and Biology, HHMI investigator from the U of Utah Satuday 8:30 p.m. The Wall Solo competition finals, $3? Really excellent performer at 9:30
School: BYU
Course: Thermodynamics
Network Problems Friday Night If this affected you . . . Make sure you submit ASAP if you havent already Send me an email If you already sent an email and I havent responded, I didnt get it! Send again In the future Submit as soon as you can, let me k
School: BYU
Course: Thermodynamics
The software well be using to see the frequencies in different sounds is called Spectrum Lab. Its free software: http:/www.qsl.net/dl4yhf/spectra1.html David Bowie, 1969 Covered by Commander Chris Hadfield Onboard the International Space Station http:/www
School: BYU
Course: Thermodynamics
Stuff Friday 4 p.m. JSB Auditorium Dr. Mario Capecchi, a Nobel laureate and distinguished professor of Genetics and Biology, HHMI investigator from the U of Utah Satuday 8:30 p.m. The Wall Solo competition finals, $3? Really excellent performer at 9:30
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 3, March 19 - 22 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. Foreign students may also use a Foreign to English dictionar
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 2, Feb 24 - 27 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. Foreign students may also use a Foreign to English dictionary
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Winter 2014 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam 1, Feb 3 - 6 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. No time limit. Each multiple choice problem is worth 4 points. U
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Fall 2013 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam #4, Dec 6 - Dec 10 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. No time limit. The rst part of this exam consists of multipl
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Fall 2013 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam #1, Sept 27 - Oct 1 Allowed: One sheet of notes, pencils, scratch paper, calculator. No time limit. There are two parts to this exam. The rst part cons
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Fall 2013 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam #3, Nov 11 - Nov 14 Allowed: One sheet of notes, pencils, scratch paper, calculator, ruler. No time limit. The rst part of this exam consists of multip
School: BYU
Course: Thermodynamics
2 PART EXAM Physics 123 section 1 Fall 2013 DO NOT WRITE ON THIS EXAM Instructor: Dallin S. Durfee Exam #2, Oct 18 - Oct 22 Allowed: One sheet of notes, pencils, scratch paper, calculator. No time limit. The rst part of this exam consists of multiple choi
School: BYU
Course: Mechanics
Physics 321 Midterm Exam #2 Sample Questions Note that the exam is open book and open notes. You will likely want to take a calculator. It is expected that the exam will take about 2 hours. 1. Given some non-dissipative system, describe each contribution
School: BYU
Course: Mechanics
Physics 321 Midterm Exam #1 Sample Questions Note that the exam is open book and open notes. You will likely want to take a calculator. It is expected that the exam will take about 2 hours. 2 d dy 1. Write the second order dierential equation dxy = A sin(
School: BYU
Course: Mechanics
Physics 321 Final Exam Sample Questions Note that the exam is open book and open notes. You will really want to have a calculator. It is expected that the exam will take less than 2 hours since that is all they have allotted for the exam. The exam will co
School: BYU
Course: Optics
Physics 471 Exam 1 Instructor: John Colton Name: q Owimg I promise I do not have any illega constants/formulas stored in my calculator: (signed) Instructions: Closed book. 3 hour time limit, 1% penalty per minute over. Show your work. All calculators
School: BYU
Course: Thermodynamics
3 hour time limit. One 3 5 handwritten note card permitted (both sides). Calculators permitted. No books. Fundamental constants: g = 9.80 m/s2 G = 6.67 10-11 N m2/kg2 kB = 1.381 10-23 J/K NA = 6.022 1023 R = kBNA = 8.314 J/molK = 0.08206 literatm/molK =
School: BYU
Course: Thermodynamics
Instructions: Record your answers on the bubble sheet. The Testing Center no longer allows students to see which problems they got right & wrong, so I strongly encourage you to mark your answers in this test booklet. You will get this test booklet back
School: BYU
Course: Thermodynamics
Constants: g = 9.8 m/s2 but you may use 10 m/s2 in nearly all cases -11 G = 6.67 10 N m2/kg2 kB = 1.381 10-23 J/K NA = 6.022 1023 R = kBNA = 8.314 J/molK = 5.67 10-8 W/m2K4 Mass of Sun = 1.991 1030 kg Mass of Earth = 5.98 1024 kg Conversion factors 1 inc
School: BYU
Course: Thermodynamics
Instructions: Record your answers on the bubble sheet. The Testing Center no longer allows students to see which problems they got right & wrong, so I strongly encourage you to mark your answers in this test booklet. You will get this test booklet back
School: BYU
Course: Thermodynamics
Physics 123 Section 2 Exam 1 Whats on the exam? The problems are not in this order, but they are on these topics: Multiple choice conceptual problems. 15 questions. Topics: o Archimedes Principle (2 ) o Bernoullis Law o Equipartition theorem o First Law o
School: BYU
Course: Thermodynamics
Physics 123 Section 2 Exam 2 Whats on the exam? Like last exam, there are 15 multiple choice questions. Three of those are almost straight from exam 1 (questions that fewer than 50% of the class got correct). There are 9 worked problems, some of which hav
School: BYU
Course: Optics
Scores: (for grader to ll in). 120 total points. Problem 1 Problem 7 Problem 2 Problem 8 Problem 3 Problem 9 Problem 4 Problem 10 Problem 5 Problem 6 c = 3 x108 m/s h = 6.626 x 10'34 J-s kB=1.331x 10'23J/K General E&M: D = 80E + P : SggrE me
School: BYU
Properties of Rocks Test Is it permeable? Predictio n Result Does it split? Predictio n Result Does it wear? Predictio n Result Does it float? Predictio n Result Slate Marble Chalk Granite Pumice Properties of Rocks Test Is it permeable? Predictio n Slate
School: BYU
Course: Mechanics
Physics 321 Homework 17 For more complicated systems, you have to be careful about your expressions for kinetic and potential energy. Each term in the kinetic and potential energy equations must be independent of each other. Work problem 7.29 from the te
School: BYU
Agroupoflemmings jumpoffacliffwith ahorizontalvelocity of3.5m/sandland inthewatera distanceof5.4m fromthecliff.What istheheightofthe cliff? Aplanedropsabombfromanaltitude of500m.Itlands400metersaway. Howfastwastheplaneflying? Joedropsacherrypitfromthecar
School: BYU