110128-opp - 1/28/11 Physics 122 1 1/28/11 Physics 122 3...

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Unformatted text preview: 1/28/11 Physics 122 1 1/28/11 Physics 122 3 1/28/11 Physics 122 4 I have posted a reading on how to do estimation problems on our BB site together with a sample solved problem. 1/28/11 Physics 122 6 1/28/11 Physics 122 7 1/28/11 Physics 122 8 1/28/11 Physics 122 9 1/28/11 Physics 122 13 r v= t 1/28/11 v a= t Physics 122 14 1/28/11 Physics 122 15 1/28/11 Physics 122 16 1/28/11 Physics 122 17 a=F FA 1/28/11 Physics 122 B net m = FB A 18 1/28/11 Physics 122 19 T =k l fA fA static f AmaxB = μ AB N A B B kinetic = μ AB N A kinetic μ AB 1/28/11 B B not sliding sliding static μ AB Physics 122 GmM W= R 2 R mg 20 1/28/11 Physics 122 21 p = mv I =F net t I=p 1/28/11 Physics 122 22 KE = 1 2 mv ( 1 1/28/11 2 Work = F 2 ) mv = F 2 Physics 122 net net r r 23 ( 1 U g = mgh 1/28/11 ) net mv 2 + U = Fnon 2 cons r U spr = k ( l ) 1 2 Physics 122 2 24 m1v1i + m2 v2i = m1v1f + m2 v2f (m1v1 )= 1 2 mvi2 + U (ri ) = 1 mv 2 + U (rf ) f 2 ( mv 1 2 1/28/11 (m2v2 ) 2 ) + U (r ) = 0 Physics 122 25 1/28/11 Physics 122 26 R= i 1/28/11 Physics 122 mi ri M 27 (radians) = = s = (radians) R v = R a = R 1/28/11 Physics 122 t t 28 aradial Fradial 1/28/11 Physics 122 v2 = R mv 2 = R 29 I= mi ri 2 i =R F F 1/28/11 Physics 122 net =0 net =0 30 A B A cos Useful for finding Work. (Why?) A B = AB cos = Ax Bx + Ay B y A AB BA A B = AB sin = Ax B y 1/28/11 Physics 122 Ay Bx A sin B Useful for finding Torque. (Why?) 31 F = pA p0A W = mg p = p0 + 1/28/11 fluid pA gd Physics 122 32 Av = constant p = ZJ 1/28/11 8 μL Z= 2 A Physics 122 33 Q1 = Q2 temperature change, no phase change Q = C T = mc T Q = mL m1 T1 m2 T2 1/28/11 Q m1 Tf phase change, no temperature change m2 Tf Physics 122 34 T = TH TC = heat flow (energy/sec) T=Z 1L Z= kA 1/28/11 Physics 122 35 ...
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This note was uploaded on 12/28/2011 for the course PHYSICS 122 taught by Professor Bhagat during the Fall '11 term at Maryland.

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