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In Class Review
ch. 1820, 2230
 Lecture number:
 39
 Pages:
 2
 Type:
 Lecture Note
 School:
 The University of Vermont
 Course:
 Phys 012  Elementary Physics
 Edition:
 1
Documents in this Packet

6 pages

Lecture 38 : Length Contraction
1 pages

Lecture 37 : Time Dilation Practice Problems
2 pages

Lecture 36 : Special Relativity
2 pages

2 pages

Lecture 34 : Quantized Electron Orbitals
3 pages

Lecture 33 : WaveParticle Duality of Light and Electrons
4 pages

Lecture 32 : Photoelectric and Compton Effects
3 pages

3 pages

5 pages

Lecture 30 : Particles and Waves
2 pages

Lecture 29 : Single Slit Diffraction and Resolving Power
2 pages

Lecture 28 : Thin Film Interference and Diffraction
2 pages

Lecture 27 : Diffraction and Thin Film Interference
3 pages

Lecture 26 : Diffraction and Interference
4 pages

4 pages

Lecture 24 : Total Internal Reflection
4 pages

Lecture 23 : Refraction of Light
4 pages

4 pages

Lecture 21 : Light Rays and Reflection
3 pages

4 pages

Lecture 20 : In Class Review for Exam 2
2 pages

Lecture 19 : Electromagnetic Spectrum
3 pages

Lecture 18 : Electromagnetic Waves
5 pages

Lecture 17 : Self Inductance, Transformers, and Circuits Containing Inductors
4 pages

3 pages

3 pages

Lecture 14 : Electromagnetic Induction
4 pages

3 pages

Lecture 12 : Currents through Magnetic Fields
3 pages

Lecture 11 : Magnetic Fields and Forces
4 pages

Lecture 10 : Kirchhoff's Rules and RC Circuits
5 pages

5 pages

Lecture 9 : Resistors and Capacitors.
4 pages

Lecture 8 : Electric Currents, Ohm's Law, and
4 pages

Lecture 7 : Capacitors and Dielectrics
3 pages

Lecture 6 : Electric Potential Energy and Electric Potential
4 pages

Lecture 5 : Electric Fields and Forces (18.9,19.1)
3 pages

Lecture 4 : Electric Field Lines
3 pages

2 pages

Lecture 1 : Charge and Charge Transfer
2 pages

2 pages
Unformatted text preview:
Lecture 39 Outline of Last Lecture II. Length Contraction a. Proper length (L0): distance between two points measured by an observer at rest relative to these two points i. L = L0/γ ii. Ex) Pole in a barn paradox: A runner is moving at 0.75c carrying a pole 15m long toward a barn that is 10 m wide. A ground observer (stationary relative to the barn) can open and close both doors simultaneously via remote control. Will the pole fit in the barn? 1. For ground observer: Lpole = L0/γ = 15 m √(1[(0.75c)2/c2]) = 9.9 m a. Pole will fit in barn (9.9 m < 15 m). 2. For runner: Lbarn = L0/γ = 10 m √(1[(0.75c)2/c2]) = 6.6 m a. Pole will not fit in barn (10m > 6.6m). 3. Simultaneity is not constant, but is relative. Even though the barn doors close simultaneously for the stationary observer, they do not close simultaneously for the runner. For the runner, there is always one door open where the pole can stick out of. b. Relativistic Addition of Velocities i. vAC = (vAB + vBC)/(1+[vABvBC/c2] Outline of Current Lecture III. Review: Lenses and Mirrors Lens Mirrors di negative Virtual image, same side as object, upright Virtual image, behind mirror, upright f negative Diverging (double concave) Convex m negative Inverted image Inverted image IV. Review: Relativistic Energy a. E = mc2/√(1[v2/c2]) b. Kinetic energy = E – E0 i. E0 = rest energy (energy associated with anything with mass) V. Review: RC Circuits a. τ = RC b. For parallel plate capacitor: C = Aε0/d Physics 012 1st Edition
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