Practica 1

 

>. Ne mgpu mgpuonr onr ub aumrp aumrpk k skl sklrm rm ubn supm supmric ricacm acm `kr `krczk czkbtn btnee ecs ecsn, n, mstm sm pkbm mb gkvcgcmbtk y mb me cbstnbtm mb qum en vmekacfnf ms fm < g/s, sm fmon fm mgpuonr. Fcjn? n. Qc me aumr aumrpk pk sm fmtcm fmtcmbm bm k scju scjum m mb gkvcg gkvcgcmbtk cmbtk.. Me aumrpk sm scjum gkvcmbfk, yn qum ne smr ecsk me pcsk, bk mxcstm en ircaacñb bc ktrn iumrzn qum ek fmtmbjn. l. Qc sm scj scjum gk gkvc vcmb mbf fk »Au Auîe îe ms en vme mek kac acf fnf ee eemv mvn nrî 0 s fmspuãs; Y 7 =44 4 hj nam namemrn emrn f fmsfm msfm < g g/s /s `ns `nstn tn >< g/s m mb b >4 s. n. »^u »^uã ã iu iumrz mrzn nn natÿ atÿn ns skl klrm rm ã ãe; e; v i  ∜ vc >< g / s ∜< g / s < <  I 7 G  ↜ I 7 >=44 hj ( > g / s ) ↜ I 7>=44 hj g/ s ↜ I 7>=44 hj >4 s t 

(  )

(

 )

l. »Auî »Auîbtk btk s sm m fm fmspenz spenznrî nrî mb m msm sm ttcmgpk cmgpk; ; f >7 v c t ↜ f >7< g / s ( >4 s ) ↜ f >7» 1 . 0 g / s

⋍

v7 c

 G 7

 

  64 hg / `

 ( > g / s ) ↜ v 7>> . > g / s

1 9 hg / `

c

⋍

<

1 . 0 g / s ∜>> . > g/ s

↜ G 7

< g/s 7

 I   I    0 B    0 B  ↜ G > 7  ↜ G <  ↜ G >7>.11 hj ∜∜∜∜∜∜∜∜∜∜∜↜ G < g/ s 9 g/ s   I 

a.   n 7 G  + G  >

↜ n7

<

 

0 B 

>.11 hj + 4.99 hj

↜ n7

  0 B  >.33 hj

 ↜ n7 6.4 y I< na natÿ tÿnb nb sk sklr lrm m ub pm pmqu qumþ mþk k au aumr mrpk pk88 I> ms mstî tî fcrcjcfn `nacn me bkrtm y tcmbm ub vnekr fm >< B y I< mstî fcrcjcfn `nacn me mstm y tcmbm ub vnekr fm 3 B. Qc en gnsn fme aumrpk ms fm 6 hj »Auîe ms en namemrnacñb fme aumrpk;

∟ 

∟ 

< ↜  I 7  I  + I 66 >66 B ❞ + 0> B ❞ ↜ I 7 ∟ .=90 g / s

 ↜

 T E7 B 

3. ]b mem memvnfk vnfkrr fm >444 h hj j sm memv memvn n akb ubn n namem amemrnacñ rnacñb b fm 6 g/s. »Au »Auîe îe ms en tmbscñb mb me anlem fm skpkrtm;  I t t 7 I j + ( Gn )  I j7 Gj ↜ I j7 >444 hj ( 3.0 g / s ) ↜ I j73,044 B  <

 I t 7 3,044 B + ( >444 B   (( 6 g / s ↜ I t 7>1,044 B 

<

) ) ↜ I t 73,044 B +6444 B 

>4.N ub aumrpk fm 44 B;  I  x ∜ I ircaackb =44 B ∜>44 B  644 B  n7   ↜n7   ↜ n7  ↜  G  .= g/s.= g / s ) ↜ I n7> g/ s ) ↜ v 7>1 . 0 g / s 1 9 hg / ` ❞ ⋍

<

<

 G v >:>,136 hj g / s   ↜ I a 7 344 hj » » I a 7344 hj » » I a 7  I a 7 r 64 g <

=4 B   (( 6 s ) ↜⃚ C 7944 B s ⃚

 

>6.Mb me scjucmbtm jrnicak aneauem me cgpuesk

 C 7 I ∉ t ↜ C 714 B   (( 6 s ) ↜  C 7>=. ]b aumrpk N fm 6 hj sm gumvm `nacn me mstm n >4 g/s, ktrk aumrpk L fm 0 hj sm gumvm akb cjune anbtcfnf fm gkvcgcmbtk. Fmtmrgcbnr? n. En anb anbtcfnf tcfnf f fm m gkvcg gkvcgcmbtk cmbtk f fme me scst scstmgn mgn fm n nglks glks a aumrp umrpks. ks. `nac acnme nme mstm mstm  Tn7 G n v n ↜ p n7 6 hj ( >4 g / s ) ↜ pn7 64 hj g / s `n ⃚

⃚

⃚

 pl7 p n7 64 hj g / s `nac `nacn n me mstm mstm 

⃚

⃚

l. En v vmek mekacf acfnf nf f fme me a aumr umrpk pk L L..  p l 64 hj g/ s   ↜ v l7= g / s ↜ v l7 v l7  G l 0 hj ⃚

⃚

⃚

⃚

>9.. Qc ub >9 ubn n pn pnrt rtça çaue uen n fm 64 644 4 jr sm gu gumv mvm m ak akb b gk gkvc vcgc gcmb mbtk tk rm rmat atce ceçb çbmk mk ubcikrgm y rmaclm ub cgpuesk mb me aune su vmekacfnf pnsn fm 1 g/s `nstn 3 g/s furnbtm ub cbtmrvnek fm tcmgpk fm 0 s. Fmtmrgcbm? n. »Au »Auîe îe m ms s me cgp cgpues uesk k rm rmacl aclcfk cfk; ;   644 jr  ( > hj ) ↜ G 74.6 hj  G 7 >444 jr

(  ) (  )

 I 7 G 

v i  ∜ vc

 I 74.6 hj

t 

↜ I 74.6 hj

9 g/s 0s

(

 )

3 g / s ∜1 g / s 0s

↜

↜ I 74.6 hj ( 4.:= g / s ) ↜ I 74.1 B  <

⃚ C 7 I ∉ t ↜⃚ C 74.1 B   (( 0 s ) ↜⃚ C 7:.]bn lken N fm 9hj qum vn n >< g/s a`kan akb ktrn L fm >< hj qum tcmbm ubn vmekacfnf fm 6 g/s mb me gcsgk smbtcfk qum en prcgmrn. Fmspuãs fme a`kqum, en lken L scjum `nacn fmenbtm nugmbtnbfk su vmekacfnf n >4 g/s. »Auîe ms en vmekacfnf fm en lken N fmspuãs fme a`kqum  G > v> c + G < v < c∜ G < v < i  v> i 7 ↜  G > ⃚

⃚

⃚

⃚

⃚

⃚

v> i 7 v> i 7

9 hj ( >< g / s ) + >< hj ( 6 g / s )∜>< hj ( >4 g / s )

 

9 hj

:< hj g / s + 60 hj g / s∜> i 7

⃚

↜

4 g/s 9 hj

  ↜ v > i 7 4 ⃚

>0. ]b anrrk fm >644 hj qum vn n 04 hg/` a`kan akb ktrk fm >>44 hj qum mstnln mb rmpksk, cbarustîbfksm mb ãe. »Auîe ms en vmekacfnf akb qum sm gumvmb 04 oubtks hg / ` nglks anrrks mb me cbstnbtm fmspuãs fme a`kqum; v> c 7  (> g / s ) ↜ v >c7 c >644 hj ( 644 hj + >>44 hj 1>,404 hj g / s   ↜ v >,< i  7>,< i  3.]bn pcmfrn fm >4 hj sm pnrtm mb fks pmfnzks pkr mimatk fm ubn mxpekscñb. Qc ubk fm eks pmfnzks fm < hj sm gumvm `nacn me bkrtm n >< g/s. »Auîe smrî en gnjbctuf y fcrmaacñb fme ktrk;  G > v > c < hj ( >< g / s )