101201 - 12/1/10 Prof. E. F. Redish 4 12/1/10 15 Physics...

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Physics 121 12/1/10 Prof. E. F. Redish 1 12/1/10 1 Physics 121 12/1/10 2 Physics 121 12/1/10 3 Physics 121 F drag = 8 ± μ Lv
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Physics 121 12/1/10 Prof. E. F. Redish 2 12/1/10 4 Physics 121 Flow in Flow out Pressure force upstream Pressure force downstream Drag force 12/1/10 5 Physics 121 P upstream ± A L P downstream ± A R ± F drag ± PA = 8 ² μ Lv ± PA = 8 L Q A ³ ´ µ · ¸ ± P = 8 L A 2 ³ ´ µ · ¸ Q = 8 L R 4 ³ ´ µ · ¸ Q ± P = ZQ 12/1/10 9 Physics 121
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Physics 121 12/1/10 Prof. E. F. Redish 3 12/1/10 10 Physics 121 12/1/10 11 Physics 121 12/1/10 14 Physics 121 m 1 ± T 1 = ² m 2 ± T 2 m 1 ( T f ² T 1 ) = m 2 ( T 2 ² T f ) m 1 T f ² m 1 T 1 = m 2 T 2 ² m 2 T f m 1 T f + m 2 T f = m 1 T 1 + m 2 T 2 T f = m 1 T 1 + m 2 T 2 m 1 + m 2 = m 1 M ³ ´ µ · ¸ T 1 + m 2 M ³ ´ µ · ¸ T 2 the changes in temp are opposite— one goes up the other goes down
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Physics 121
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Unformatted text preview: 12/1/10 Prof. E. F. Redish 4 12/1/10 15 Physics 121 2 2 1 1 T m T m = 12/1/10 16 Physics 121 12/1/10 18 Physics 121 2 2 2 1 1 1 T c m T c m = Physics 121 12/1/10 Prof. E. F. Redish 5 12/1/10 19 Physics 121 T C Q = mc C = 12/1/10 20 Physics 121 12/1/10 21 Physics 121 2 2 1 1 2 2 2 1 1 1 2 2 2 1 1 1 2 2 2 1 1 1 2 2 2 2 2 2 1 1 1 1 1 1 ) ( ) ( ) ( ) ( ) ( ) ( c m c m T c m T c m T T T c m T T c m T T c m T T c m T T c m T c m Q T T c m T c m Q f f f i f i f i f i f + + = = = = = = =...
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101201 - 12/1/10 Prof. E. F. Redish 4 12/1/10 15 Physics...

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