Tarea 5 de Fisica

 

Vdsudavk aks smeumdhtds kpamckcmlhds ;) Ak vda vdalc lcmbk mbkb b bda slhm slhmbl bl dh da kmrd ka hmvd hmvdaa bda gkr ds kardb kardbdb dblr lr bd 200 g/sde, sm uh jlgfrd lyd da rumbl bd uh trudhl 2 sdeuhbl bdspuís,¼ k quí bmstkhcmk sd prlbunl da rkyl< rkyl< Bktls >

sla.

Ydalcmbkb7 200gts/sde b7v*t tmdgpl72sde b7200gts/sde*2sde B< b7;900gts

6) Th góvma rdclrrd rdclrrd 200 omaógdtrls dh ;0 gmhutls. Bdtdrgmhd ak vdalcmbkb. vdalcmbkb. Bktls sla Bmstkhcmk7200 omaógdtrls v7b/t Rmdgpl7;0gmhutls v7200omalgdtrls/;0gmhutls Y< v720omalgdtrl/gmhutl   Y720og *90 gmh76200og/jlrk 3-) Th kutl cmrcuak k uhk vdalcmbkb bd 56 og/j y tmdhd uhk gksk bd 400 oe. ¼Cuëhtk dhdreçk cmhítmck plsdd< ;og 7 ;000g ? ;j 7 3900s Plr al tkhtl> 56og/j 7 56(; 56(;000g/3900s) 000g/3900s) 7 5 56(4/;:) 6(4/;:) g/s 7 60g/s Audel> • Dhdremk cmhdtmck 7 Do 7 (;/6)gY¶  

⇖

  Do 7 (;/6)(400oe)(60g/s)¶

 

⇖

  Do 7 ;00 000 N Nluads luads

2) Sm uh prlydctma bd 60 erkgls bd gksk ds bmspkrkbl clh uhk vdalcmbkb bd 40g/s, dhtlhcds ¼cuëa ¼cuëa ds su dhdreçk cmhítmck< cmhítmck< Bktls> Gksk760erkgls Ydalcmbkb 740g/s Dc7<    

sla? dc7gv6/6 dc760e*40g/s6/6 Dc760e*6400g/s6/6 Dc764,000eg6/sde6 Dc764,000 n

 

4) Th lfndtl bd ;4oe sd gudvd clh uhk kcdadrkcmóh bd 4 g/sde 6, ds dgpunkbl k uhk bmstkhcmk bd 604 g ilrgkhbl uh ëheual bd 54¾ . Bdtdrgmhd da trkfknl rdkamzkbl. Bktls> sla> i7g*k Pdsl7;4oe t7ibclsӭ i7;4oe*4g/sd6  Kcdadrkcmóh74g/sde6 t754h*604g/sde6cls54¾ i754 hdwtlh 6 Bmstkhcmk7604g t754h*604g/sde 0.=6  Kheual754¾ t7;2,;24 n Rrkfknl>< 9) Bdtdrgmhd ak dhdreçk pltdhcmka qud bdskrrlaak uh kscdhslr pkrk dadvkr uh cudrpl bd 400 oe k uh qu qumhtl mhtl pmsl bd 200 g bd katurk. Bktls> Gksk7400oe j7200g erkvdbkb7=.: Dp7<

sla> dp7gje dp7400oe*200g*=.: dp7;,=90,000oe/g Dp7;.=9x;09 N

5) Bdtdrgmhk ak pltdhcmk bdskrrlaakbk pltdhcmk  bdskrrlaakbk plr uhk gëqumhk qud rdkamzk uh trkfknl bd ;00 N burkhtd uh tmdgpl bd 60 sde. Bktls> Rrkfknl7;00n Rmdgpl760sde Pltdhcmk7<

sla> p7R/t p7;00n/60sde P74wjkt

:) Bdtdrgmhd ak dhdreçk pltdhcmka dgpadkbk plr ak erþk bd ak erëimck, sm dstk tmdhd ;0 000 oe bd gksk y advkhtk uh cudrpl k uhk k katurk aturk bd = =00 00 g. Bktls> Gksk7;0,000oe jkaturk7=00g

sla> dp7gje dp7;0,000oe*=00g*=.:

erkvdbkb7=.: dp7::,600,000oe/g dhdreçk pltdhcmka7< Dp7:.:6x;05 N

=) Bdtdrgmhk ak pltdhcmk bdskrrlaakbk pltdhcmk  bdskrrlaakbk plr uhk gëqumhk bd 6000 oe bd gksk sm sd gudvd clh uhk kcdadrkcmóh bd 60 g/sde 6  k uh uhk k bm bmstk stkhcm hcmk k bd :40 g burkhtd uh tmdgpl bd 60 sde. Bktls> Gksk 76000oe  Kcdadrkcmóh760g/sde  Kcdadrkcmóh760g/s de6 Bmstkhcmk7:40g

sla> trkfknl7i*b iudrzk7 g*k t720,000*:40  i76000oe*60g/sde6 t732,000,000 i720,000hdwtlh

 

t73.2x;05hg

Rmdgpl760sde Pltdhcmk7<

p 7R/t P73.2x;05hg/60sde   P732,000,000hg/60sde Rrkfknl7< P7;,500,000 wjkt Iudrzk720,000hdwtlh

;0) Bdtdrgmh Bdtdrgmhd d ak dhd dhdreçk reçk cm cmhítmc hítmck k bdskr bdskrrlaak rlaakbk bk plr da s soktdr oktdr bd ak erë erëimck, imck, s smm dstd tmdhd ;00 oe bd gksk gksk y sd bdspakzk k uh uhk k vdalcmbkb bd 60 g/s g/sde. de. Bktls>

sla> dc7gv6/6

Gksk7;00oe Ydalcmbkb760g/sde

dc7;00oe*60g/sde6/6

Dc7<

Dc7;00oe*200g/sde6/6

 

Dc760,000g/sde6

 

Dc76x;02N

;;) Ckacuak ak dhdreçk pltdhcmka bd uh gkrtmaal bd ;.4 oe bd gksk cukhbl sd jkaak smtukbl k uhk katurk bd 6 g slfrd da sudal. Bktls> Gksk7;.4oe Jkaturk76g Dp7< Erkvdbkb7=.:

sla> dp7gje dp7;.4oe*6g*=.: Dp76=.2N

;6) Vds Vdsuda udavk vk clrr clrrdct dctkgd kgdhtd htd aks smeu smeumdh mdhtds tds kpa kpamck mckcml cmlhds hds>> ( Yk Ykal alrr ;6 puhtls);) Bdsbd uh pudhtd sd bdnk ckdr uhk pmdbrk qud elapdk da keuk ;.4 sde gës tkrbd. Jkaak ak katurk bda pudhtd v 7 et j 7 v¶ / 6e v7=.:*;.4 j7;2.5/6*=.:756.03gts 6 v7;2.5g/sde

;3) Bdtdrgmhd da pdsl bd uh cudrpl dh ak tmdrrk y dh ak auhk sm su gksk ds bd ;:0 oe.

 

P7g*et p7;:0oe*=.:g/s6 p7;,592 H P7g*ea p7;:0oe*;.96g/s6 p76=;.9 H

;2) Bdtdrgmhd ak dhdreçk pltdhcmka qud bdskrrlaak uh kscdhslr pkrk dadvkr uh cudrpl bd 400 oe k uh qu qumhtl mhtl pmsl bd 200 g bd katurk.  dp7gje

DP7400OE*200G DP7400OE*200G*=.: *=.: DP7;=.9Z;04H

;4) Bdtdrgmhk ak pltdhcmk bdskrrlaakbk pltdhcmk bdskrrlaakbk plr uhk gëqumhk bd 6000 oe bd gksk sm sd gudvd clh uhk kcdadrkcmóh bd 60 g/sde 6  k uh uhk k bm bmstk stkhcm hcmk k bd :40 g burkhtd uh tmdgpl bd 60 sde. Bktls G 7 6000oe  K 7 60g/sde6 B 7 :40g R 7 60sde P 7< I 7 gk I 7 6000oe * 60g/sde 6 I 7 20000 oeg/sde6 I 7 20,000 H R 7 ib R 7 20,000H * :40g R 7 32,000,000 Hg R 7 32000000 N P 7 R/t P 7 32000000n/60s 32000000n/60sde de P 7 ;,500,000 n/sde P 7 ;500000 U P 7 ;.5x;09 N

;9) Th ;9) Thk k gk gkcd cdtk tk sd ck ckd d bd uh fk fkac acóh óh k uh uhk k vd vdal alcm cmbk bkb b bd =. =.:; :; g/ g/sd sde e kbqumrmdhbl uhk dhdreçk cmhítmck bd 400 N ¼cuëa ds su gksk< Dc 7 400 N v 7 =,:; g/se ilrguak>

 

Dc 7 ;/6 g. v sustmtuydhbl vkalrds> 400 7 ; / 6 g. =,:; bdspdnkgls ak gksk g 7 400 x 6 / =,:; 7 ;0;.=39: Oe

CLHRMHTKCMóH Vdsudavk aks smeumdhtds kpamckcmlhds

;) Ckacuak ak dhdreçk gdcëhmck bd uh skatkblr bd alhemtub bd 54 oe bd gksk, cukhbl dstë dh da kmrd k 6,4 gdtrls slfrd da sudal y clh uhk vdalcmbkb bd = g/sde. Bktls> g 7 54 Oe j 7 6,4 g v 7 = g/s Dg 7 <    

Ak Dhdreçk Gdcëhmck ds> Dg 7 Dc + Dp

 

Dg 7 ;/6 gv¶ + gej

 

Dg 7 ;/6 (54Oe)(=g/s)¶ + (54Oe)(=,:g/s¶)(6,4g)

 

Dg 7 3035,4 N + ;:35,4 N

 

Dg 7 2:54 N

  6) Th kvmóh vudak clh uhk vdalcmbkb bd 560 og/j k uhk katurk bd 3 og slfrd da sudal. Sm ak gksk bda kvmóh ds bd 6400 oe, ¼cuëhtl vkad su dhdreçk gdcëhmck tltka<

 

Als bktls slh>   v 7 560 Og/j

560Og/j(;000g/; 560Og/j(;000g/;j)(;j/3900s) j)(;j/3900s) 7 600

g/s  g 7 6400 Oe   j 7 3 Og 7 3000 g    

Dg 7 Dc + Dp Dg 7 ;/6 gv¶ + gej

 

Dg 7 ;/6 (6400Oe)(600g/s)¶ + (6400Oe)(=,:g/s¶)(3000g (6400Oe)(=,:g/s¶)(3000g))

 

Dg 7 40*;09 N + 53,4*;09 N

 

Dg 7 ;63,4*;09 N

3) Ckacuak da trkfknl rdkamzkbl plr uhk pdrslhk qud krrkstrk uhk cknk plr da sudal k al akrel bd uhk bmstkhcmk bd 5 g, cl clh h uhk iudrzk clhstkhtd bd ;5 ;54 4 H, sm k. Ak iudrzk sd kpamck dh ak gmsgk bmrdccmóh y sdhtmbl qud da bdspakzkgmdhtl f. Ak iudrzk ilrgk uh ëheual bd 30° clh da bdspakzkgmdhtl Da trkfknl Da trkfknl rdkamzkbl  rdkamzkbl plr uhk uhk pdrslhk qud krrkstrk uhk cknk, sm > k) Ak Ak iudrzk  iudrzk sd  sd kpamck dh ak gmsgk bmrdccmóh y sdhtmbl qud sdhtmbl  qud da bdspakzkgmdhtl ds > U > U 7 ;664 Nluads. f) f) Ak  Ak iudrzk ilrgk uh kheual uh kheual bd bd 30°  30° clh da bdspakzkgmdhtl bdspakzkgmdhtl yk  yk hl ds pkrkadak ka bdspakzkgmdhtl, ilrgk uh kheual dhtlhcds trkfknl7 iudrzk*cls30*bdspakzkgmdhtl iudrzk*cls30* bdspakzkgmdhtl ? trkfknl7 9;6,4 guatmpamckbl plr rkmz bd 3 U 7;,090.:= 7 ;,09; Nluads   Da trkfknl Da trkfknl rdkamzkbl  rdkamzkbl plr uhk pdrslhk qud krrkstrk uhk cknk sd ckacuak gdbmkhtd ak iórguak bd trkfknl bd  trkfknl gdcëhmcl > gdcëhmcl > U 7 I*b*cls λ , bd ak smeumdhtd gkhdrk > U 7< b 7 5g I 7 ;54 H k) Ak iudrzk sd kpamck dh ak gmsgk bmrdccmóh y sdhtmbl qud da bdspakzkgmdhtl bdspakzkgmdhtl7< 7< f) Ak iudrzk ilrgk uh kheual bd 64° clh da bdspakzkgmdhtl 7<  k )

U 7 I*b*cls λ

 

U 7 ;54 H * 5 g * cls 0¾

 

U 7 ;664 nluads

 f)

U 7 I*b*cls λ

 

 

U 7 ;54 H * 5 g * cls 30¾

 

U 7 ;,09; nluads

2) Th ckf ckfkaa kaal l bd 300 oe bd gksk sd bdsp bdspakz akzk k

bds bdskrr krrlaa laakhb khbl l uhk dhd dhdreç reçk k

cmhítmck bd ;0N. Bdtdrgmhd ak vdalcmbkb bdskrrlaakbk plr da ckfkaal.

pkrtmgls bd ak ilrguak l bdimhmcmóh bd dhdreçk cmhítmck Dc7;/6.g.vX6 tdhdgls gksk y ak dhdreçk smgpadgdhtd bdspdnkgls ak vdalcmbkb. Bktls>

Dc7;/6GY6

G7 300oe

;0n7 ·(300)Y6

Dc7 ;0N

Y7 VKM^ CTKBVKBK BD 6(;0)/300

Y7<

v70.69g/s

4) Th rmia rmiad d bm bmsp spkr krk k uh uhk k fk fkak ak bd 2.6 2.6 e cl clh h uh uhk k rk rkpm pmbd bdz z bd =9 =94 4 gM gMsd sde. e. k) Dhcudhtrd ak dhdreçk cmhítmck bd ak fk fkak. ak. f) Sm da trkfknl sd rdkamzk slfrd uhk bmstkhcmk bd 0.54 g, ¼cuëa ds ak iudrzk gdbmk slfrd ak fkak< Vdclrbdgls qud ak uhmbkb bd gdbmbk bd ak dhdreçk ds ak gmsgk bda trkfknl, da Nluad .  Khltdgls als bktls qud tdhdgls> gksk bd ak fkak 7 2,6 e 7 0,0026 Oe rkpmbdz bd ak fkak 7 =94 g/s bmstkhcmk 7 0,54 g Clh dstl hls bkgls cudhtk bd qud tdhmdhbl uhk gksk (uh cudrpl) y clhlcmdhbl su rkpmbdz (vdalcmbkb) plbdgls ckacuakr ak Dhdreçk cmhítmck uskhbl ka iórguak>

k) Ak dh dhdreçk dreçk cmhít cmhítmck mck bd ak fka fkak k ds ;. ;.=49 =49 N Nluads luads Ckacuadgls

 

f) Hls pmb pmbdh dh ckacu ckacuakr akr uh trkf trkfknl knl pdr pdrl l hl clhl clhlcdgl cdgls s da vkalr bd I (ak iu iudrzk) drzk) pkrk kpamckr ak iórguak R 7 I • b , pdrl clhlcdgls ak Dhdreçk cmhítmck imhka (;.=49 N) y da dhuhcmkbl bda prlfadgk hls bmnl qud ak Dhdreçk cmhítmck mhmcmka ds cdrl (ak fkak pkrtd bda rdplsl). Dhtlhcds kpamckgls ak iórguak

Da trkfknl rdkamzkbl slfrd ak fkak dqumvkad k ;.=49 Nluads 9) Th vkeóh bd ;4 Oe sd gudvd k uhk plr uh clrrdblr jlrmzlhtka bd 3400 gdtrls clh uhk vdalcmbkb bd 5.4 g/sde Thk iudrzk clhstkhtd bd ;0 H kctþk slfrd da vkeóh y su vdalcmbkb sd rdbucd k 3.6 g/sde k) ¼Cuëa ds da ckgfml bd ak dhdreçk cmhítmck bda vkeóh< f) ¼[uí trkfknl sd rdkamzó slfrd da vkeóh< .

.

Bktls> g7 ;4 Oe Ym7 5,4 g/s I7 ;0 H Yi7 3,6 g/s Ckacuadgls k) Pkrk ak bmidrdhcmk bd Dhdreçk cmhítmck>

Ak vkrmkcmóh bd dhdreçk cmhítmck iud bd 324 Nluads (hdektmvls, al cuka mhbmck qud sd kpamck irdhkhbl ka góvma). Ckacuadgls f)

 

Ak iórguak bmcd qud Rrkfknl ds meuka k ak bmidrdhcmk bd Dhdreçk cmhítmck

Dhtlhcds R 7 324 Nluads Slfrd da vkeóh sd rdkamzó uh trkfknl bd 324 Nluads pkrk irdhkral. 5) Th amfrl bd 6 Oe rdpls rdplsk k slfrd uhk gd gdsk sk bd :0 cg bda pmsl. Dhcudhtrd Dhcudhtrd ak dhdreçk pltdhcmka bda amfrl dh rdakcmóh k) clh da pmsl f) clh da ksmdhtl bd uhk smaak, smtukbl k 20 cg bda sudal c) clh da tdcjl qud dstë k 3 g bda pmsl g 7 6 oe Dhdreçk pltdhcmka rdspdctl ka pmsl  Katurk bda amfrl rdspdctl ka pmsl 7 :0cg :0cg 7 0,: gdtrls Dp 7 gej 7 (6)(=,:)(0,:) 7 ;4,5 N Dhdreçk pltdhcmka rdspdctl k ak smaak bda ksmdhtl. 20 cg bda sudal lsdk qud da amfrl dstk k :0-20 cg bd ak smaak. 20cg 7 0,2 gdtrls Dp 7 gej 7 (6)(=,:)(0,2) 7 5,: N Dhdreçk pltdhcmka dh da tdcjl, clgl hl bmcds k qud katurk dstë da tdcjl usl 6,4 g. sm ds ltrk gdbmbk sustmtuyds 6,4 plr ak katurk k ak qud sd dhcudhtrk da tdcjl Dp 7 6*=,:*6,4 7 2= N

:) Thk gksk bd 20 Oe sd dadvk jkstk uhk bmstkhcmk bd 60 g dh uh akpsl bd 3 sde. ¼[uí pltdhcmk prlgdbml jk utmamzkbl< Ak pltdhcmk sd bdimhd clgl dhdreçk clgl  dhdreçk dhtrd tmdgpl, dhtlhcds tmdgpl, dhtlhcds ckacuak ak dhdreçk pltdhcmka y ak bmvmbmgls dhtrd da tmdgpl, tka qud> Dp 7 gµeµj Dp 7 (20 oe)µ(=.: g/s¶)µ(60 g) Dp 7 5:20 N  Kjlrk, sd bdskrrlaal dstk dstk dhdreçk dh dh 3  3 sdeuhbls, sdeuhbls, dhtlhcds. P 7 5:20 N /3 s

 

P 7 69;3.33 U =) Thk ck ckrek rek bd 50 Oe sd dadv dadvk k jkst jkstk k uhk katu katurk rk bd 64 g. Sm ak lpd lpdrkc rkcmóh móh rdqumdrd ; gmhutl, dhcudhtrk ak pltdhcmk hdcdskrmk. Bktls Gksk 7 50 Oe  Katurk 7 64 g Rmdgpl 7 ; gmh 7 90 sde Erkvdbkb 7 =,: g/s¶ Pltdhcmk 7 < Ckacuakgls clh dstk ilrguak Pkskgls k JP (ckfkaals iud iudrzk) rzk) ; JP 7 524,9 Uktts  Kcakrkcmóh > uhmbkb bd gksk qud guatmpamck clh ak bd kcdadrkcmóh y clh ak bd bmstkhcmk bk meuka k Nluad > Oe g¶/s¶ ---8 uhmbkb bd trkfknl gdcëhmcl Bmcjk uhmbkb bd trkfknl trkfknl bmvmbmbk dhtrd ak bd tmdgpl bk clgl clgl rdsuatkbl da Uktt > Oe g¶/s³ ---8 uhmbkb bd pltdhcmk gdcëhmck