PHYS171_f11_lecture_02

PHYS171_f11_lecture_02 - PHYS171 Principles of Physics I...

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Unformatted text preview: PHYS171 Principles of Physics I Prof. Arthur La Porta Assistant Professor, Department of Physics, Institute of Physical Science and Technology Maryland Biophysics Program [email protected] Rm 1111, IPST building (building #085) Chapter 1 Scaling If I make an organism 10 times bigger, will it still work? Chapter 1 Models in Physics Missile launched from here Target is here Interceptors are here Offer to put it here declined Chapter 1 Models in Physics Chapter 1 Models in Physics Missile launched from here Target is here Interceptors are here Offer to put it here declined Missile launched from here Missile launched from here Target is here Target is here Interceptors are here Interceptors are here Offer to put it here declined Offer to put it here declined In what way are these problems the same, different? Chapter 1 Models in Physics Cheetah Gazelle Chapter 1 Reminder: Velocity (rate of change of position) t x v Δ Δ = [ ] [ ] T L v = acceleration (rate of change of velocity) t v a Δ Δ = [ ] [ ] [ ] [ ] [ ] 2 T L T T L a = = Chapter 1 Dimensional Analysis We are told a particle is moving around a circle (radius r) at uniform speed v. What is the acceleration experienced by the particle. If we assume that the answer can be expressed as some power of the radius multiplied by some power of the velocity, what is the proper equation? r v i m n m v kr a = What are n , m, i ?...
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This note was uploaded on 12/29/2011 for the course PHYSICS 171 taught by Professor La porta during the Fall '11 term at Maryland.

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PHYS171_f11_lecture_02 - PHYS171 Principles of Physics I...

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