Angular Momentum Conservation

University:
Duke University
Course:
PHYSICS 761 | Classical Mechanics
Academic year:

2023
Views:

202

Pages:

2
Author:

Pemuda H

6/2 pu²½+pu [uz-July)dy] + poly)dy=-2 j prove (x)dx = - Fy Angular Momentum Conservation d I-EF-linear and I = Emivi = ρνατι and K-Emiñ d dt Use Reynold's T.T. or.... Plug into Linear Momentum. →dep (FX) de + Sp (PV) (7-Bindo - Mp+Mps F m=0.18/s Assume: Steady Flow 2=2r P= 1000*9/m³ And the pressure is the same on all sides of the CV, And volume forces are negligible r = 0.1m A=25mm² p(in) do m Sp (xv) (7.ň)dor, Va, k + Vaz k = 0 ✓ = Vrel + Veransport Vai A Vaz PA w= + PA Thermodynamics Nomenclature Fundamental Law: general enough to apply to many things Theorem: More specific Corollaries: More or less derivations of theorems Extensive Properties: depend on size Intensive Properties: don't depend on size u State: Defined by at least two independent properties. Work Transfer Interaction: requires boundary to move Heat Transfer Interaction: Requires difference in temperature Non-properties: depend on path (Work/Heat transfer interaction) Heat sign convention: positive receive heat and do work on enviro Heat Engine: a system of fixed identity which undergoes a cycle, and during the cycle, undergoes a heat transfer with a heat source and sink. Perfect Gas Cp is constant. Semi-perfect Gas Cp varies w/ temperature w=91-92 heat source - heat sink 7en 9. 9, (th 100% would have a Perpetual Motion Machine of 2nd kind (breaks 2nd law) 1st Law of Thermodynamics: Introduces Internal Energy Q1-2-Winz Ez-E, means you're dealing w/ a nonproperties properties process SQ-SW=LE means you're dealing with a nonproperty E- Internal Energy m² mgz+ Eother was considered an unknown Corrollaries of 2nd Law of Thermodynamics 2.4.3.2 < threv Men thimer All processes that share a heat source/sink have the same on a cycle - from Clausius who introduced entropy - if reversible, the integral equals zero. This means διατ is a property and doesn't depend on path. ⑤ds-rev →but entropy can be used for any process Entropy measure of disorder in a system Can only be generated and never destroyed

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