1er bac physi
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Transcript of 1er bac physi
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8/8/2019 1er bac physi
1/1
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) 7(:I- ml50=V)S( III .l / mol1=C FeCl 3
(FeCl 3 , 6H 2O) .-1 -2 )()(2)(:
3)(23 ................)6,( lll O H C FeO H FeC aqaqs ++
+
-3 -4 III
II- L72=V C80= hPa1013=P.-1 -2 V
-3 : M(H)=1g/mol ; M(O) =16g/mol ; M(Cl) =35g/mol ; M(Fe) = 56g/mol ; R = 8,314 (SI) )13(:
1: d = 20cm 45 .
-1 -2 -3 -4
2:
(S) m=100g ABCD ( -1 ). .BVB=4m/s A -1.1
B APW
)(v
-1.2 AB-1.3 (S) AB -1.4 ABCD -2 BCD.-2.1
C BPW
)(v
DC PW
)(v
2.2- h r h -2.3 -2.4 CD
:AB = 2mg = 10N/kgh = 1m = 603:
)S( kg,50=m s / rad20=2: * r =10cm g = 9,8N/Kg30 =
. -1 -2 BA-3 T AB-4 2-5 -6 F = 50N
20 .
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CB
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