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  • Phys 107 Web Page
    the heart exerts a net force pushing blood in one net direction within the body the heart body is pushed by the blood the other way A sensitive chair then measures this motion Since the blood mass and body mass are presumed known and the body velocity is measured the velocity of the blood as pumped by the heart can be determined Using the impulse momentum equation and the time over which this effect occurs the force of the heartbeat can be determined This measurement can be useful for heart patients or even for athletes who wish to monitor their strengthening hearbeat during training Note that this method is non intrusive Supplementary Lecture on Animal Mechanics Figures New Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 LECTURE 30 Problem 47 Chapter 11 was done in class using the Bouyancy Force Here is a different solution using first principles Problem 68 Chapter 11 was done in class using Bernoulli s Law It is best to always use Bernoulli s Law since it reduces to the static case if there is no fluid motion However to see this problem in a slightly different way than what was done in class see this version LECTURE 35 A good example of heat transfer by convection is the surface of the sun the photosphere In the outer 1 3 of the sun heat is transferred via bulk gas motions The hot gas which is rising is bright whereas the surrounding gas which has cooled and is starting to fall back is dark forming a granulation pattern An example of conduction is when heat from the skin warms the immediately surrounding air molecules via collisions this of course cools the skin Gradually the air molecules immediately surrounding the

    Original URL path: http://www.astro.queensu.ca/~irwin/phy107/phy107.html (2016-02-13)
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  • Phys 215 Web Page
    phy215 phy215 html Course Instructor Dr J A Irwin Room 308E Stirling Hall TEL 613 533 2717 Email Dr J Irwin Course Information Calendar Description Course Summary Info and Evaluation Course Outline Supplementary Lecture Notes Assignments Observing Project Important Dates

    Original URL path: http://www.astro.queensu.ca/~irwin/phy215/phy215.html (2016-02-13)
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  • Phys 225 Web Page
    A Irwin Room 308E Stirling Hall TEL 613 533 2717 Email Dr J Irwin Course Information Calendar Description Course Information and Outline 1999 Assignments and Tutorials 1999 Important Dates Important

    Original URL path: http://www.astro.queensu.ca/~irwin/phy225/phy225.html (2016-02-13)
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  • Phys 315 Web Page
    marks Observing Project Cassiopeia article about project Summary of this year s results FINAL EXAM Wed April 16 2 5 p m Dunning Ground Floor Marked assignments are in the box down the hall from my office Solutions have been handed out in class The equation sheet on the exam will be very close to what you have seen on the 2013 final with only slight variations depending on the information that you require for the exam Please bring a calculator with you A ruler may also be useful Marked projects will be placed in the box down the hall from my office on Wednesday morning Figures 1 China s Yutu Rover rolling onto the Moon 2 High velocity dust grains embedding in aerogel related to the Stardust mission to Comet Wild 2 3 The Lonar meteorite crater in India 4 Cosmic ray tracks in a cloud chamber Some links helpful fanciful fun or whatever Astronomy Picture of the Day The Galaxy Song lyrics from Monty Python s The Meaning of Life warning ads Lyrics to The Big Bang Theory theme song warning ads Chris Hadfield and the Barenaked Ladies singing Book your flight into space for 100 000 NanoSail

    Original URL path: http://www.astro.queensu.ca/~irwin/phy315/ (2016-02-13)
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  • Phys 372 Web Page
    billards and billards and billards Piet Hein as quoted in Ludwig Boltzmann the Man who Trusted Atoms by Carlo Cercignani Class figures and info that are not in the textbook 1 Operation of household thermostat IR thermometer and details Smoke Stack thermometer Warm day 10 Celsius day 2 The Kelvin Celsius and Rankine Fahrenheit temperature scales 3 Zeroth law of thermodynamics 4 Assumptions of kinetic theory 5 The ideal gas as a surface 6 Extension of surface concept to other phases 7 Sample Van der Waals constants 8 Sample PvT equations of state 9 PvT differentials 10 Expansion joint in concrete 11 Cyclic relation 12 Approaches to differentiation 1 Approaches to differentiation 2 Approaches to differentiation 3 13 Finding the Equation of State given β K T 1 Finding the Equation of State given β K T 2 14 Mixed second partial derivatives 15 Gay Lussac Joule experiment i e experimental determination that U U T only not V or P for an ideal gas Gay Lussac Joule experiment figure Gay Lussac Joule experiment explanation 16 Work and heat in context of a system 17 General expression for specific heat 18 c P and c v for copper and mercury 19 β and κ for copper and mercury 20 Ways in which entropy can be increased 21 Simple combinatorics example Archimedes Stomachion 22 Ludwig Boltzmann s grave 23 Details as to how water in pipes can freeze 24 The TdS Equations 25 The Carnot cycle on a surface 26 Geothermal energy 27 AC at the cottage Outside rear view of cottage Opening AC back Cutting open the plastic Finally space for Q h 28 Heat pump sometimes referred to as geothermal but actually a refrigeration cycle 29 The refrigerant HFC 134a 30 Throttling and Throttling curves 31 Thermodynamic potentials identities

    Original URL path: http://www.astro.queensu.ca/~irwin/phy372/index.html (2016-02-13)
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  • Phys 415 Web Page
    Instructor Dr J A Irwin Room 308E Stirling Hall TEL 613 533 2717 Email Dr J Irwin Course Information Calendar Description Course Information and Outline 1999 Assignments 1999 Information about

    Original URL path: http://www.astro.queensu.ca/~irwin/phy415/phy415.html (2016-02-13)
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  • Phys 433/813 Web Page
    html Course Instructor Dr J A Irwin Room 308E Stirling Hall TEL 613 533 2717 Email Dr J Irwin Winter Schedule Course Information LECTURES Tuesday 11 30 Wednesday 1 30 Friday 12 30 Room 412B Stirling Hall Calendar Description TEXT Galactic Astronomy by James Binney and Michael Merrifield Princeton Series in Astrophysics Textbook Website Table of Contents Error List Other Potentially Useful References Course Outline and Supplementary Lecture Notes Assignments

    Original URL path: http://www.astro.queensu.ca/~irwin/phy433/phy433.html (2016-02-13)
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  • Phys 811 Web Page
    Dr D J Saikia Room 308A Stirling Hall TEL 533 2682 Email djs astro queensu ca Course Information Calendar Description Books and Resources Suggestions for Student Topics Seminal Papers in

    Original URL path: http://www.astro.queensu.ca/~irwin/phy811/phy811.html (2016-02-13)
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