{"id":2501,"date":"2016-09-18T22:51:41","date_gmt":"2016-09-18T22:51:41","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=2501"},"modified":"2024-08-22T17:21:04","modified_gmt":"2024-08-22T17:21:04","slug":"resolucao-comentada-dos-exercicios-de-vestibulares-sobre-notacao-cientifica-ordem-de-grandeza-e-algarismos-significativos","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/introducao\/notacao-cientifica-ordem-de-grandeza-e-algarismos-significativos\/resolucao-comentada-dos-exercicios-de-vestibulares-sobre-notacao-cientifica-ordem-de-grandeza-e-algarismos-significativos\/","title":{"rendered":"Nota\u00e7\u00e3o Cient\u00edfica, Ordem de Grandeza e Algarismos Significativos"},"content":{"rendered":"

Resolu\u00e7\u00e3o comentada dos exerc\u00edcios de vestibulares sobre<\/b><\/span><\/span><\/span><\/p>\n

Nota\u00e7\u00e3o Cient\u00edfica, Ordem de Grandeza e Algarismos Significativos<\/b><\/span><\/span><\/span><\/p>\n

01- <\/b><\/span><\/span><\/span>Como a a r\u00e9gua \u00e9 <\/b><\/span><\/span><\/span>centimetrada <\/b><\/span><\/span><\/span>podemos dizer que o <\/b><\/span><\/span><\/span>comprimento da barra <\/b><\/span><\/span><\/span>est\u00e1 <\/b><\/span><\/span><\/span><\/p>\n

compreendido entre 7 cm e 8 cm, <\/b><\/span><\/span><\/span>estando <\/b><\/span><\/span><\/span>mais pr\u00f3ximo de 7 cm.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

O <\/b><\/span><\/span><\/span>algarismo <\/b><\/span><\/span><\/span>que <\/b><\/span><\/span><\/span>representa<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>primeira casa depois da v\u00edrgula n\u00e3o<\/b><\/span><\/span><\/span> pode <\/b><\/span><\/span><\/span>ser determinado com precis\u00e3o, devendo ser estimado (\u00e9 o duvidoso).<\/b><\/span><\/span><\/span><\/p>\n

Assim, <\/b><\/span><\/span><\/span>estimamos a medida do comprimento L da barra em 7,3 cm.<\/b><\/span><\/span><\/span> O <\/b><\/span><\/span><\/span>algarismo 7 \u00e9 correto, <\/b><\/span><\/span><\/span>mas o <\/b><\/span><\/span><\/span><\/p>\n

algarismo 3 \u00e9 duvidoso.<\/b><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

02- <\/b><\/span><\/span><\/span>Com a utiliza\u00e7\u00e3o da <\/b><\/span><\/span><\/span>r\u00e9gua milimetrada podemos dizer <\/b><\/span><\/span><\/span>que o comprimento do l\u00e1pis est\u00e1 <\/b><\/span><\/span><\/span><\/p>\n

compreendido entre 150 mm e 160 mm, <\/b><\/span><\/span><\/span>estando <\/b><\/span><\/span><\/span>mais pr\u00f3ximo do 150 mm.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

O <\/b><\/span><\/span><\/span>algarismo que representa a primeira casa depois da v\u00edrgula n\u00e3o pode <\/b><\/span><\/span><\/span>ser <\/b><\/span><\/span><\/span>determinado com precis\u00e3o, devendo ser estimado (duvidoso) . Assim, estimamos a medida <\/b><\/span><\/span><\/span>do comprimento do l\u00e1pis em <\/b><\/span><\/span><\/span>150,0 mm = 15,00.<\/b><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

03- <\/b><\/span><\/span><\/span>Zeros consecutivos \u00e0 esquerda n\u00e3o s\u00e3o algarismos significativos significativos.<\/b><\/span><\/span><\/span><\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

04- <\/b><\/span><\/span><\/span>Como o <\/b><\/span><\/span><\/span>erro da leitura corresponde \u00e0 metade da menor divis\u00e3o, ou seja, 0,05 <\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>C,<\/b><\/span><\/span><\/span> a <\/b><\/span><\/span><\/span>medida mais confi\u00e1vel na escala Celsius \u00e9 38,6 + 0,05 = 38,65 <\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>C.<\/b><\/span><\/span><\/span> <\/b><\/p>\n

Substituindo <\/b><\/span><\/span><\/span>esse valor <\/b><\/span><\/span><\/span>em <\/b><\/span><\/span><\/span>t<\/b><\/span><\/span><\/span>x<\/b><\/span><\/span><\/sub><\/span>\u00a0= 2t<\/b><\/span><\/span><\/span>c<\/b><\/span><\/span><\/sub><\/span>\/3 t<\/b><\/span><\/span><\/span>x<\/b><\/span><\/span><\/sub><\/span> = 2.(38,65)\/3 = 25,77 <\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>X<\/b><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

05- <\/b><\/span><\/span><\/span>D<\/b><\/span><\/span><\/span>i\u00e2metro estimado <\/b><\/span><\/span><\/span>da roda = 60cm <\/b><\/span><\/span><\/span>= 0,6m \"\"<\/b><\/span><\/span><\/span> <\/b>raio da roda R = <\/b><\/span><\/span><\/span>30 cm <\/b><\/span><\/span><\/span>= 0,3 m.<\/b><\/span><\/span><\/span><\/p>\n

Deslocamento de cada volta da roda \"\"<\/b><\/span><\/span><\/span> <\/b>\uf044<\/b><\/span><\/span><\/span> s = 2 <\/b><\/span><\/span><\/span>\uf070<\/b><\/span><\/span><\/span> R \"\"<\/b><\/span><\/span><\/span> <\/b>\uf044<\/b><\/span><\/span><\/span> s<\/b><\/span><\/span><\/span> = 2.3,14.0,3 <\/b><\/span><\/span><\/span>= 1,88m.<\/b><\/span><\/span><\/span><\/p>\n

N\u00famero de voltas <\/b><\/span><\/span><\/span>para percorrer <\/b><\/span><\/span><\/span>200km = 2.10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span> m<\/b><\/span><\/span><\/span> \"\" <\/b><\/span><\/span><\/span>n = <\/b><\/span><\/span><\/span>2.10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span> m\/1,88 m <\/b><\/span><\/span><\/span>= 1,06.10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span> <\/b> \"\" OG = 10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

06- <\/b><\/span><\/span><\/span>0,00000045 = 4,5.10<\/b><\/span><\/span><\/span>-7<\/b><\/span><\/span><\/sup><\/span><\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

07- <\/b><\/span><\/span><\/span>Como 1000 L = 1 m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> \"\"<\/b><\/span><\/span><\/span> <\/b>5,5 L <\/b><\/span><\/span><\/span>= 0,0055 m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> = 5.500.000 mL<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> <\/b>= 5,5.10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span> mL<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

O <\/b><\/span><\/span><\/span>n\u00famero<\/b><\/span><\/span><\/span> de <\/b><\/span><\/span><\/span>gl\u00f3bulos vermelhos no corpo <\/b><\/span><\/span><\/span>ser\u00e1<\/b><\/span><\/span><\/span> \"\" <\/b><\/span><\/span><\/span>5 milh\u00f5esx 5,5.10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span> <\/b>= 5.10<\/b><\/span><\/span><\/span>6 <\/b><\/span><\/span><\/sup><\/span>x 5,5.10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span> = 27,5.10<\/b><\/span><\/span><\/span>12<\/b><\/span><\/span><\/sup><\/span> <\/b>= 2,75.10<\/b><\/span><\/span><\/span>13<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

R- E<\/b><\/span><\/span><\/span> <\/b><\/p>\n

08- <\/b><\/span><\/span><\/span>Transformando 37 cent\u00e9sinos de segundos em horas = 0,37\/3600 <\/b><\/span><\/span><\/span>= 0,000102777… \u2248 0,000103 <\/b><\/span><\/span><\/span>= 1,03.10<\/b><\/span><\/span><\/span>-4<\/b><\/span><\/span><\/sup><\/span> h.<\/b><\/span><\/span><\/span><\/p>\n

R – A
\n<\/b><\/span><\/span><\/span><\/p>\n

09- <\/b><\/span><\/span><\/span>I. <\/b><\/span><\/span><\/span>300.000.000 m\/s <\/b><\/span><\/span><\/span>= 3,0.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span> m\/s<\/b><\/span><\/span><\/span><\/p>\n

II. <\/b><\/span><\/span><\/span>149.000.000 km <\/b><\/span><\/span><\/span>= 1,49.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span> km<\/b><\/span><\/span><\/span><\/p>\n

III. <\/b><\/span><\/span><\/span>0,000.000.005 cm <\/b><\/span><\/span><\/span>= 5,0.10<\/b><\/span><\/span><\/span>-9<\/b><\/span><\/span><\/sup><\/span> cm<\/b><\/span><\/span><\/span><\/p>\n

IV.<\/b><\/span><\/span><\/span> 100.000.000.000.000.000 s <\/b><\/span><\/span><\/span>= 1,0.10<\/b><\/span><\/span><\/span>17<\/b><\/span><\/span><\/sup><\/span> s <\/b><\/span><\/span><\/span><\/p>\n

10- <\/b><\/span><\/span><\/span>(<\/b><\/span><\/span><\/span>1\/10)x(1\/1.000.000.000) <\/b><\/span><\/span><\/span>= 10<\/b><\/span><\/span><\/span>-1<\/b><\/span><\/span><\/sup><\/span>x10<\/b><\/span><\/span><\/span>-9<\/b><\/span><\/span><\/sup><\/span> <\/b>= 10<\/b><\/span><\/span><\/span>-10<\/b><\/span><\/span><\/sup><\/span> m<\/b><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

11- <\/b><\/span><\/span><\/span>54 Lx12 km = <\/b><\/span><\/span><\/span>648 kmx10<\/b><\/span><\/span><\/span>3 <\/b><\/span><\/span><\/sup><\/span>m = 648.10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>m <\/b><\/span><\/span><\/span>= 6,48.10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span> m \"\" <\/b><\/span><\/span><\/span>6,48 > 3,162 \"\" <\/b><\/span><\/span><\/span>OG =<\/b><\/span><\/span><\/span> 10.10<\/b><\/span><\/span><\/span>5 <\/b><\/span><\/span><\/sup><\/span>= 10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span> m.<\/b><\/span><\/span><\/span><\/p>\n

R- E <\/b><\/span><\/span><\/span><\/p>\n

12- <\/b><\/span><\/span><\/span>V<\/b><\/span><\/span><\/span>bact\u00e9ria<\/b><\/span><\/span><\/sub><\/span> = 10<\/b><\/span><\/span><\/span>-21<\/b><\/span><\/span><\/sup><\/span> V<\/b><\/span><\/span><\/span>baleia \"\"<\/b><\/span><\/span><\/sub><\/span> V<\/b><\/span><\/span><\/span>bact\u00e9ria<\/b><\/span><\/span><\/sub><\/span> = 10<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sup><\/span>m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>x10<\/b><\/span><\/span><\/span>-21<\/b><\/span><\/span><\/sup><\/span> = 10<\/b><\/span><\/span><\/span>-19<\/b><\/span><\/span><\/sup><\/span> m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

13- <\/b><\/span><\/span><\/span>V = 200×100 = 2.10<\/b><\/span><\/span><\/span>4<\/b><\/span><\/span><\/sup><\/span> L\/dia <\/b><\/span><\/span><\/span> \"\" 1dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> = 1 L = 10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> \"\" <\/b><\/span><\/span><\/span>1 L = 10<\/b><\/span><\/span><\/span>-3<\/b><\/span><\/span><\/sup><\/span> m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> \"\" <\/b><\/span><\/span><\/span>V = <\/b><\/span><\/span><\/span>2.10<\/b><\/span><\/span><\/span>4<\/b><\/span><\/span><\/sup><\/span>x10<\/b><\/span><\/span><\/span>-3<\/b><\/span><\/span><\/sup><\/span> <\/b>= 10<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sup><\/span> m<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

R- A<\/b><\/span><\/span><\/span><\/p>\n

14- <\/b><\/span><\/span><\/span>Velocidade da luz no v\u00e1cuo V = 3.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span> m\/s <\/b><\/span><\/span><\/span> \"\" <\/b><\/span><\/span><\/span>\u0394t =<\/b><\/span><\/span><\/span> 8 min = 8.60 <\/b><\/span><\/span><\/span>= 480 s<\/b><\/span><\/span><\/span> \"\" <\/b><\/span><\/span><\/span>V = \u0394S\/\u0394t<\/b><\/span><\/span><\/span> \"\" 3.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span> = \u0394S\/480 \"\" <\/b><\/span><\/span><\/span>\u0394S =<\/b><\/span><\/span><\/span> 3.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span>.480 = 1440.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span> = 1,44×10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span> <\/b>= 1,44.10<\/b><\/span><\/span><\/span>11 <\/b><\/span><\/span><\/sup><\/span> m = 1,44.10<\/b><\/span><\/span><\/span>8 <\/b><\/span><\/span><\/sup><\/span> km \"\" \u0394S = 10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span> km.<\/b><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

15- <\/b><\/span><\/span><\/span>10anosx12meses = 120 meses<\/b><\/span><\/span><\/span> \"\" 20 mesesx1 caixa (40 palitos) = 4800 palitos.<\/b><\/span><\/span><\/span><\/p>\n

4800 = 4,8.10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> \"\"<\/b><\/span><\/span><\/span> 4,8 > 3,162 \"\" <\/b><\/span><\/span><\/span>OG =<\/b><\/span><\/span><\/span> 10.10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> <\/b>= 10<\/b><\/span><\/span><\/span>4<\/b><\/span><\/span><\/sup><\/span>. <\/b><\/span><\/span><\/span><\/p>\n

R- D<\/b><\/span><\/span><\/span><\/p>\n

16- <\/b><\/span><\/span><\/span>54 Lx12 km = <\/b><\/span><\/span><\/span>648 kmx10<\/b><\/span><\/span><\/span>3 <\/b><\/span><\/span><\/sup><\/span>m = 648.10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>m <\/b><\/span><\/span><\/span>= 6,48.10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span> m <\/b><\/span><\/span><\/span>6,48 > 3,162 <\/b><\/span><\/span><\/span>OG =<\/b><\/span><\/span><\/span> 10.10<\/b><\/span><\/span><\/span>5 <\/b><\/span><\/span><\/sup><\/span>= 10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span> m.<\/b><\/span><\/span><\/span><\/p>\n

R- E <\/b><\/span><\/span><\/span><\/p>\n

17- <\/b><\/span><\/span><\/span>35.000 <\/b><\/span><\/span><\/span>folhas + <\/b><\/span><\/span><\/span>85.000 <\/b><\/span><\/span><\/span>pontas de cigarros = <\/b><\/span><\/span><\/span>120.000 materiais recolhidos entre folhas de \u00e1rvores e<\/b><\/span><\/span><\/span> <\/b>pontas de cigarros \"\"<\/b><\/span><\/span><\/span> 120.000 = 1,2.10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span> \"\" <\/b><\/span><\/span><\/span>1,2 < 3,162 \"\"<\/b><\/span><\/span><\/span> OG = 1.10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span> \"\" <\/b><\/span><\/span><\/span>OG = 10<\/b><\/span><\/span><\/span>5<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

18- <\/b><\/span><\/span><\/span><\/span>1 dia = <\/b><\/span><\/span><\/span><\/span>24 hx60 min <\/b><\/span><\/span><\/span><\/span>= 1440 min<\/b><\/span><\/span><\/span><\/span> \"\" V = 20Lx1440 min = 28.800 = 2,8.10<\/b><\/span><\/span><\/span><\/span>4<\/b><\/span><\/span><\/span><\/sup><\/span> \"\" <\/b><\/span><\/span><\/span><\/span>2,8 < 3,126 \"\"<\/b><\/span><\/span><\/span><\/span> OG = 1.10<\/b><\/span><\/span><\/span><\/span>4<\/b><\/span><\/span><\/span><\/sup><\/span> \"\" <\/b><\/span><\/span><\/span><\/span>OG = 10<\/b><\/span><\/span><\/span><\/span>4<\/b><\/span><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/span><\/p>\n

R- C<\/b><\/span><\/span><\/span><\/p>\n

19- <\/b><\/span><\/span><\/span>Volume ocupado por um gr\u00e3o <\/b><\/span><\/span><\/span> \"\" V<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span> =0,5 cmx0,5 cmx1,0 cm = 0,25 cm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> = 0,25.10<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>.10<\/b><\/span><\/span><\/span>-3<\/b><\/span><\/span><\/sup><\/span> dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> = 0,25 dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

1 L ocupa um volume de 1 dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> \"\" V<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span> = 1 dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> \"\" 1 L cont\u00e9m V<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span>\/V<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span> = 1 dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span>\/0,25 dm<\/b><\/span><\/span><\/span>3<\/b><\/span><\/span><\/sup><\/span> = 4 \"\" 4 > 3,126 \"\" OG = 10.<\/b><\/span><\/span><\/span><\/p>\n

R- A<\/b><\/span><\/span><\/span><\/p>\n

20- <\/b><\/span><\/span><\/span>Se T<\/b><\/span><\/span><\/span>e<\/b><\/span><\/span><\/sub><\/span> <\/b>\u00e9 a temperatura da estrela \"\" <\/b><\/span><\/span><\/span>T<\/b><\/span><\/span><\/span>e<\/b><\/span><\/span><\/sub><\/span> = 5.T<\/b><\/span><\/span><\/span>Sol<\/b><\/span><\/span><\/sub><\/span> <\/b>=5×5770 <\/b><\/span><\/span><\/span>= 28850 \"\"<\/b><\/span><\/span><\/span> <\/b>pela tabela <\/b><\/span><\/span><\/span>essa estrela pertence \u00e0 <\/b><\/span><\/span><\/span>classe espectral BO cuja luminosidade vale 2.10<\/b><\/span><\/span><\/span>4<\/b><\/span><\/span><\/sup><\/span> vezes a luminosidade do Sol, ou seja,<\/b><\/span><\/span><\/span><\/p>\n

20000.<\/b><\/span><\/span><\/span><\/p>\n

R- A <\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n

Voltar para os exerc\u00edcios<\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

Resolu\u00e7\u00e3o comentada dos exerc\u00edcios de vestibulares sobre Nota\u00e7\u00e3o Cient\u00edfica, Ordem de Grandeza e Algarismos Significativos 01- Como a a r\u00e9gua \u00e9 centimetrada podemos dizer que o comprimento da barra est\u00e1 compreendido entre 7 cm e 8 cm, estando mais pr\u00f3ximo de 7 cm. O algarismo que representa a primeira casa depois da v\u00edrgula n\u00e3o pode ser determinado com precis\u00e3o, devendo<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2497,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-2501","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/comments?post=2501"}],"version-history":[{"count":3,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2501\/revisions"}],"predecessor-version":[{"id":10781,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2501\/revisions\/10781"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2497"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=2501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}