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ENSAYO DE LEYES DE CONSERVACIN DE MASA, ENERGA Y MOMENTUM.
POR:
JUAN PABLO MOLINA LVAREZDARO ALEJANDRO HERNNDEZ MENDOZA
JHAYRON STIVEN
MECNICA DE FLUIDOS
PROFESOR:EVELIO ANDRES GOMEZ GIRALDO
UNIVERSIDAD NACIONAL DE COLOMBIASEDE MEDELLIN
FACULTAD DE MINASMIRCOLES 2 DE ABRIL DE 2!"#
CONTENIDO.
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O$%&'()*+-
F/%* 0 '10)+ 3& /40 5*67/&1'07040 -
D0'*+ -C85/*+ #
A48(+(+ 3& 1&+/'03*+9
C0($105(4 3& /4 )&1'&3&1*B0;
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OBJETIVOS (TOMADOS DE LA GUA DE LABORATORIO).
". E=7*4&1 /40 >*160 3& 505/01 &=7&1(6&4'06&4'& 0 >/&1;0 ?/& /4 @/%* &&%&15& 0 /40 5*67/&1'0 )&1'(50 5*6701010 5*4 0 505/030 '&1(506&4'& 0701'(1 3& 0 07(505(4 3& 0 & 3& 5*4+&1)05(4 3& 6*64'/6.
2. P1&+&4'01 *+ 71*5&3(6(&4'*+ 0 +&/(1 &4 0 50($105(4 3& /4 )&1'&3&1* 5*6*3(+7*+('()* 0>*103*1.
-. I4'1*3/5(1 & 5*&5(&4'& 3& 3&+5010 7010 /4 )&1'&3&1* 5*6* /40 >*160 3&(4)*/5101 *+ 0+7&5'*+ 3&+71&5(03*+ &4 0 3&1()05(4 '&1(50.
. I3&4'(501 0+
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" 2,!"9 2,!" ",9" ",22! !,
S& 05010 ?/& *+ 7(&;6&'1*+ &+'84 4/6&103*+ 3&+3& & (4+'003* &4 0 701'&68+ 011($0 3& 0 5*67/&1'0, 0+'0 & (4+'003* 68+ 0$0%*, 3& " 0 2!1&+7&5'()06&4'&.
E4 0 '0$0 2 +& 71&+&4'04 *+ 30'*+ 3& 0+ 0'/10+ 0/0+ 011($0 3& 0 5*67/&1'0Y", 0 0'/10 0/0+ 0$0%* Y2, 0+< 5*6* '06$(4 & 045* 3& 5040.
T0$0 2. D0'*+ )01(*+ 3& 6*4'0%&.
&' m & * m B m!,9 !,! !,
Y2>/& 003* 5*4 & 30'* 3& &4+0* 3&
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2! 24,5
C,LCULOS.
A 5*4'(4/05(4 +& 6/&+'10 & )*/6&4 3& 5*4'1* 3&4(3* 7010 & 048(+(+ 3&
71*$&60.F(/10 ". V*/6&4 3& 5*4'1* 040(;03* &4 & 0$*10'*1(*.
S& 71*5&3& 0 &45*4'101 & 50/30 ?/& 70+0 7*1 3&$0%* 3& 0 5*67/&1'0.
P*1 5*4+&1)05(4 3& 60+0: " V"A" V2A2 V" V2A2A"
S(&43* V" V20+ )&*5(303&+ 6&3(0+. C*6* 0 10;4 A2A" &+ 6/ 7&?/&Q0 7*10 3(>&1&45(0 3& 81&0+, +& 7/&3& 301 0 +(/(&4'& 071*=(605(4: V" !.
U+043* 0 &5/05(4 3& B&14*/( 0 ?/& +& 7/&3&4 3&+71&5(01 713(30+ 3&&4&1/&1;0 '&1(50 1&+/'04'&?/& & 0/0 & 05& 0 0 5*67/&1'0, 5*4 0 &=71&+(4 +(/(&4'&:
N
B &+ & 045* 3&5040,7&17&43(5/01 0
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(y2y1 )]B
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&' m & * m B m V* m-"
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Fexperimental=i
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T0$0 #. F/&1;0 &=7&1(6&4'0 1&+/'04'& +*$1& 0 5*67/&1'0.
Piezmet! +i %m PiP# Li%m
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A3&68+ 3& * 04'&1(*1, 50$& 4*'01 ?/& &4 & 3&+011** &=7&1(6&4'0 & 0/0 4*
+** @//&4'& 3& &11*1 (67*1'04'& &45*670105(4 5*4 0 >/&1;0 '&1(50.
C*6701043* *+ )0*1&+ 3& >/&1;0 '&1(50 &=7&1(6&4'0, +& 7/&3& &=7(5017*1 ?/ 0 >/&1;0 '&1(50 *$'&4(30 &+ 60*1 ?/& 0 &=7&1(6&4'0. E4 & 048(+(++& 3&+71&5(0 0 >/&1;0 3& >1(55(4 3& >*43* 3& 5040, 7&1* 3(50 >/&1;0 &=(+'&,&4'*45&+ &4 0 7185'(50 +& *$'(&4& /4 )0*1 68+ 05&1'03* 3& 0 >/&1;0 ?/& 05*67/&1'0 & 05& 0 )*/6&4 3& 5*4'1* 7010 K604'&4&1* ?/(&'*, 6(&4'10+?/& '&1(506&4'&, +( +& (4*10 0 >/&1;0 3& >1(55(4 ?/& 0/30 &4 &+'05*4+(40, 0 >/&1;0 3& 0 5*67/&1'0 3&$& 5*67&4+010.
E4 5/04'* 0 3(01060 3& 71&+(*4&+ +*$1& 0 5*67/&1'0 & 1&0 &4 0 /10 2,+& 7/&3& *$+&1)01 /4 5*67*1'06(&4'* (5* &+7&103*:
A 5*670101 & 3(01060 3& 71&+(*4&+ 1&0&+ +*$1& 0 5*67/&1'0 5*4 &3(01060 3& 71&+(*4&+ (31*+'8'(50+, +& 4*'0 ?/& 0 '&43&45(0 3& 06$0+ &+(4&0 0 6&3(30 ?/& +& $0%0 &4 0 5*67/&1'0, /40 7*1 3&$0%* 3& 0 *'10, 0+'05(&1'0 71*>/43(303 04'&+ 3& &01 0 0 0$&1'/10, &4 0 5/0 3()&1&4, 0(31*+'8'(50 +(/& +/ (4&0(303 0 1&0 '(&43& 187(306&4'& 0 5&1*.
E X7*1 ?/ 3& 5*67*1'06(&4'* &4 0+ 71&+(*4&+ +*$1& 0 5*67/&1'0 +& 7/&3&&=7(501 7*1 6&3(* 3& 0 5*4+&1)05(4 3& 0 &4&1
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&4'*45&+ 5*6* 0+ )&*5(303&+ 5&150 3& 0 0$&1'/10 0/6&4'04, 0+ 71&+(*4&+3&$&4 3(+6(4/(1 7010 ?/& +& 5*4+&1)& 0 /4(>*16(303 3& 0 50$&;0 '*'0.
E4 0 /10 - +& 6/&+'10 /40 3(+'1($/5(4 '&1(50 3& 71&+(*4&+ +*$1& /405*67/&1'0 7040 5*4 @/%*.
F(/10 -. D(+'1($/5(4 '&1(50 3& 71&+(*4&+ +*$1& 0 5*67/&1'0 5*4 @/%*. T*603* 3& "
INNOVACI/45(4 &+ 0 1&/05(4 3& 70+0%& 3& 0/0 * 3& 5/0?/(&1 *'1* @/(3* &4'/$&1
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C*67/&1'0 '(7* 04(*, +& /'((;04 &4 0 51&+'0 3& *+ )&1'&3&1*+ 3& 50+& '/(70,&4 0?/&0+ 71&+0+ ?/& +& &45/&4'104 &?/(7030+ 3(5*+ )&1'&3&1*+.
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E4 0 +(/(&4'& '0$0 +& 6/&+'104 *+ 30'*+ *$'&4(3*+ &4 & 0$*10'*1(*.
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>*160: Y 6\ ^ $. R&+'0 &4'*45&+ 05&1 /40 1850 3& 4 )+. L4H]H *. A5*4'(4/05(4 +& 71&+&4'04 *+ 7/4'*+ 0 10501:
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X=
XiN
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2 (X)= 1
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N
N2 (1 S2 (Y , X)
S2 (Y) S2 (X))S2 (Y)
S& 505/018, 03&68+, & 5*&5(&4'& 3& 5*11&05(4 3& 0 (4&0(;05(4 5*4(4'&15&7'*, /+043* 0 +(/(&4'& >16/0:
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AN,LISIS DE RESULTADOSL0 1&0(;05(4 3& &=7&1(6&4'* & 585/* 7*+'&1(*1 3&
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7/&3& *$+&1)01, 3(5* )0*1 &+ !,#2, ?/& &+'8 6/ 5&1504* 0/4*. A*10, +( $(&4 &+'& )0*1 %/+'(50 & /+* 0 )0(3&; 3& 4/&+'101&1&+(4 (4&0, 0$*0 7*1 0 )0(3&; 3& 4/&+'1*+ 30'*+[ 4* +(4(50?/& &+'*+ W'(6*+ 5*(45(304 0 0 7&1>&55(4 5*4 & >&46&4* 1&0, 0 ?/&7*31&1&4'& 3030 /40 &*6&'1&1&4'&, &+ (5* 3&3/5(1 & &5* 3& ?/& 4* 7*3&6*+'*601 /4 W4(5* & (4)01(0$& C37010 & &=7&1(6&4'* *$0.
-. E 4W6&1* 3& R&4*3+, & 5/0, 0 +/ )&;, '(&4& /40 104 1&05(4 5*4 &04'&1(*1 /&1;0+ )(+5*+0+].
. L0 '&4+(4 +/7&15(0 ?/& 71&+&4'0 & 0/0 5*4 0 +/7&15(& 3& 0 701&33& )&1'&3&1*, ?/& (4'&1)(&4& &4 604('/3 5*4+(3&10$& +( 0 86(40 3&@/(3* 7*1 &45(60 3& 3(50 +/7&15(& &+ 7&?/&Q0, * +& 3&+71&5(0 +( &+1043&.
P010 & 50+* 3& &+'& )&1'&3&1*, 5/0+ 50105'&1
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Q=CdbgH3
2 , 3*43&:
&+ & 50/30 ?/& 70+0 0 '10)+ 3& )&1'&3&1*. $ &+ & 045* 3& 0 51&+'0 3& 0 701&3. &+ & )0*1 3& 0 10)&303. H &+ 0 0'/10 3& 0 5*/640 3& 0/0 ?/& 0 0/0+ 011($0, 7*1 &45(60
3& /4 704* *1(;*4'0 (60(401(* ?/& 70+0 7*1 & $*13& +/7&1(*1 3& 0701&3.
S& 71&+&4'0 0 5*4'(4/05(4 /40 (60&4 7010 (/+'101 0+ 3(6&4+(*4&+ 0+(454('0+ 0 '*601 &4 5/&4'0 &4 0 04'&1(*1 &5/05(4:
F(/10 : E+?/&60 3& /4 )&1'&3&1* 3& 701&3 3&030.
S(4 &6$01*, +& +/&& 03*7'01, 105(0+ 0 *+ 7*5*+ &11*1&+ (43/5(3*+ 7*1 &*_2`, /40 >16/0 &67
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INNOVACI*1603* /4 &4*16&*$+'85/* 7010 0 7*$05(4 3& +06*4&+ ?/&, 0Q* '10+ 0Q*, 40304 0/0+ 011($05*4 & 4 3& 3&+*)01 0
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V&6*+ &4'*45&+, 7*1 * 04'&1(*1, ?/& *+ )&1'&3&1*+ +*4 /+03*+ 4* +*06&4'&5*4 71*7+('*+ (4&4(&1(&+, +(4* ?/& +/+ $*4303&+ 7/&3&4 +&1 /+030+ &45067*+ $0+'04'& 3()&1+*+, &4 & 048(+(+ 3(+&Q* 3& &+'1/5'/10+ 5*4 4&+)01(03*+.
LINEAS PIE>OMTRICAS & DE ENERGA TOTAL
DATOS.
E4 0 +(/(&4'& '0$0 +& 71&+&4'04 *+ 30'*+ 3& *+ 7/4'*+ 040(;03*+ &4 &5040 04'&+ 3& 1&+0'* (318/(3* 7/4'*+ 3& " 0 3&+7/+ 3& &+'& 7/4'*+3& 9 0 "2, 0 71*>/43(303 0< 1&(+'1030 3& 0/0, +/ 3(+'045(0 3&+3& & 03*68+ 0 0 (;?/(&130 3& 5040.
T0$0 "#: D0'*+ 3& 0$*10'*1(* 3& /43(303
563 56
" , ",#2 , "#- ,"2 229 ,#2 2# , -9#,# ,# #,
9 ",-9 99,# ",! -9
",9 !#,9"! ",2 "" ",9 "!#9"2 2!,"2 ""2
A3&68+ +& '*604 5*6* 7/4'* 3& 701'(30 & 50/30 ?/& 70+0 7*1 3&$0%* 3& 05*67/&1'0 &45*4'103* &4 0 7185'(50 3& K@/%* 0 '10)+ 3& /40 5*67/&1'07040 )&1 '0$0 , & 045* 3& 5040. E+'*+ 30'*+ +& 6/&+'104 05*4'(4/05(4.
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3& 5040, 6(&4'10+ ?/& 0 71(6&10 '(&4& /4 7(5* 7*1 &45(60 3& 0 '&1(50 071(45(7(*, /&* &67(&;0 0 $0%01 0+'0 ?/& +& &+'0$((;0 &4 /4 4()& $0+'04'&68+ $0%* ?/& 0 '&1(50. E+'* +& 7/&3& &=7(501 3& 0 +(/(&4'& 604&10: E4 &1&+0'* (318/(5* 3& 5040 +& &4&104 '/1$/&45(0+ 0&0'*1(0+ (67*1'04'&+ 5*4 &+'0+, 0 3(+(705(4 3& &4&1
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