Questões - ITA 2002 | Gabarito e resoluções

(ITA - 2002 - 1a Fase) Assinale a opo que apresenta um par de substncias isomorfas.

(ITA - 2002 - 1a Fase) THE GREAT ENGLISH DIVIDE Antonio Sanz might as well have won the lottery. In 1965, when the small, curly-haired Spaniard was 10, an American professor asked his parents if she might take the boy to the U.S. and enroll him in public school. They agreed. America seemed to offer a brighter future than the dairy farms where his father worked in the foothills north of Madrid. Sanz left, but came back to Spain every summer with stories from Philadelphia and boxes of New World artifacts: Super Balls, baseball cards, and Bob Dylan records. His real prize, though, was English. Sanz learned fast, and by senior year he outscored most of his honors English classmates in the verbal section of the Scholastic Aptitude Test. In those days, back in his hometown of Colmenar Viejo, English seemed so exotic that kids would stop him on the street and ask him to say a few sentences. By the time he graduated from Hamilton College in Clinton, N. Y., and moved back to Spain, American companies there were nearly as excited. He landed in Procter Gamble Co. Sanz, now 46 and a father of three, employs his Philadelphia English as an executive at Vodafone PLC in Madrid. But something funny has happened to his second language. These days, English is no longer special, or odd, or even foreign. In Paris, Dsseldorf, Madrid, and even in the streets of Colmenar Viejo, English has put down roots. What else can we speak? Sanz asks. (...) Business Week Aug 13, 2001. Antonio Sanz foi estudar nos E.U.A., pois:

(ITA - 2002 - 1a Fase) O tringulo ABC, inscrito numa circunferncia, tem um lado medindo cm, cujo ngulo oposto de 15o . O comprimento da circunferncia, em cm,

(ITA - 2002 - 1a Fase) Um pequeno tanque, completamente preenchido com 20,0 de gasolina a 0 F, logo a seguir transferido para uma garagem mantida temperatura de 70 F. Sendo = 0,0012 C-1 o coeficiente de expanso volumtrica da gasolina, a alternativa que melhor expressa o volume de gasolina que vazar em consequncia do seu aquecimento at a temperatura da garagem

(ITA - 2002 - 1a Fase) Deseja-se enrolar um solenoide de comprimento z e dimetro D, utilizando-seuma nica camada de fio de cobre de dimetro d enrolado o mais junto possvel. A umatemperatura de 75C, a resistncia por unidade de comprimento do fio r. Afim de evitar que atemperatura ultrapasse os 75C, pretende-se restringir a um valor P a potncia dissipada porefeito Joule. O mximo valor do campo de induo magntica que se pode obter dentro dosolenoide :

(ITA - 2002 - 1a Fase) THE GREAT ENGLISH DIVIDE Antonio Sanz might as well have won the lottery. In 1965, when the small, curly-haired Spaniard was 10, an American professor asked his parents if she might take the boy to the U.S. and enroll him in public school. They agreed. America seemed to offer a brighter future than the dairy farms where his father worked in the foothills north of Madrid. Sanz left, but came back to Spain every summer with stories from Philadelphia and boxes of New World artifacts: Super Balls, baseball cards, and Bob Dylan records. His real prize, though, was English. Sanz learned fast, and by senior year he outscored most of his honors English classmates in the verbal section of the Scholastic Aptitude Test. In those days, back in his hometown of Colmenar Viejo, English seemed so exotic that kids would stop him on the street and ask him to say a few sentences. By the time he graduated from Hamilton College in Clinton, N. Y., and moved back to Spain, American companies there were nearly as excited. He landed in Procter Gamble Co. Sanz, now 46 and a father of three, employs his Philadelphia English as an executive at Vodafone PLC in Madrid. But something funny has happened to his second language. These days, English is no longer special, or odd, or even foreign. In Paris, Dsseldorf, Madrid, and even in the streets of Colmenar Viejo, English has put down roots. What else can we speak? Sanz asks. (...) Business Week Aug 13, 2001. A frase que melhor expressa a idia principal do texto :

(ITA - 2002) Considere as solues aquosas obtidas pela dissoluo das seguintesquantidades de solutos em um 1L de gua: I. 1 mol de acetato de sdio e 1 mol de cido actico. II. 2 mols de amnia e 1 mol de cido clordrico. III. 2 mols de cido actico e 1 mol de hidrxido de sdio. IV. 1 mol de hidrxido de sdio e 1 mol de cido clordrico. V. 1 mol de hidrxido de amnio e 1 mol de cido actico. Das solues obtidas, apresentam efeito tamponante

(ITA - 2002 - 1a Fase) Num sistema de coordenadas cartesianas, duas retas r e s, com coeficientes angulares 2 e 1/2, respectivamente, se interceptam na origem 0. Se B r e C s so dois pontos no primeiro quadrante tais que o segmento perpendicular a r e a rea do tringulo OBC igual a 1210-1, ento a distncia de B ao eixo das ordenadas vale

(ITA - 2002 - 1a Fase) THE GREAT ENGLISH DIVIDE Antonio Sanz might as well have won the lottery. In 1965, when the small, curly-haired Spaniard was 10, an American professor asked his parents if she might take the boy to the U.S. and enroll him in public school. They agreed. America seemed to offer a brighter future than the dairy farms where his father worked in the foothills north of Madrid. Sanz left, but came back to Spain every summer with stories from Philadelphia and boxes of New World artifacts: Super Balls, baseball cards, and Bob Dylan records. His real prize, though, was English. Sanz learned fast, and by senior year he outscored most of his honors English classmates in the verbal section of the Scholastic Aptitude Test. In those days, back in his hometown of Colmenar Viejo, English seemed so exotic that kids would stop him on the street and ask him to say a few sentences. By the time he graduated from Hamilton College in Clinton, N. Y., and moved back to Spain, American companies there were nearly as excited. He landed in Procter Gamble Co. Sanz, now 46 and a father of three, employs his Philadelphia English as an executive at Vodafone PLC in Madrid. But something funny has happened to his second language. These days, English is no longer special, or odd, or even foreign. In Paris, Dsseldorf, Madrid, and even in the streets of Colmenar Viejo, English has put down roots. What else can we speak? Sanz asks. (...) Business Week Aug 13, 2001. Considere as afirmaes abaixo: I. A famlia de Antonio Sanz vivia numa cidadezinha chamada Colmenar Viejo, prxima a Madrid, na Espanha. II. O pai de Antonio Sanz era proprietrio de fazendas de gado leiteiro na Espanha. III. Todos os anos, durante as frias de vero, Antonio Sanz dava aulas de ingls para as outras crianas de Colmenar Viejo. est(o) condizente(s) com o texto:

(ITA - 2002 - 1a Fase) Um pesquisador percebe que a freqncia de uma nota emitida pela buzina de um automvel parece cair de 284 hz para 266 hz medida que o automvel passa por ele. Sabendo que a velocidade do som no ar 330 m/s, qual das alternativas melhor representa a velocidade do automvel?

(ITA - 2002 - 1a Fase) Appropriate for All Ages Japanese toymakers are focusing on senior citizens By Hideko Takayama Much has been made in Japan of the clout of teenage girls, the arbiters of taste and uncrowned queens of the fashionindustry. But when it comes to toys, a radically different demographic is beginning to call the shots. Japanese toymakers now see senior citizens as their most dynamic market. Nearly 22 million Japanese 17.4 percent of the population are over 65, and that number is expected to top 25 percent by 2020. Three million senior citizens live alone, and 1.55 million Japanese are senile (their numbers are also expected to grow rapidly). This aging population presents a huge silver market estimated at 50 trillion yen ($416 billion) for everything from beds to cosmetics to homecare nurses and helpers. Major industries such as electronics, construction and foodstuffs have already begun developing products tailored to old folks: robots to help out around the house, homes that have no steps or stairs and healthy, oilfree foods. The toy industry wants a piece of the action. There is a great potential says Yoshinori Haga, an official at Bandai, the biggest toymaker in Japan. Toys can be used for entertainment, to give the old people nostalgic feelings or to be a companion for those who live alone. Indeed, playthings are not just for fun anymore. Toshimitsu Musha, president of the Brain Functions Lab near Tokyo, argues that playing with toys can help human brains stay active and sharp. While researching Alzheimers disease, Musha found that art therapy such as painting and claywork helped to prevent the brains of Alzheimers patients from deteriorating. What works best for the elderly is something that they enjoy, where they have to use their brain and which requires concentration from 30 minutes to one hour, he says. (...) Newsweek August 6, 2001. Considere as afirmaes abaixo: I. No Japo, a indstria de vesturio fortemente influenciada pela preferncia das adolescentes japonesas. II. Ser feito um investimento de cerca de 416 bilhes de dlares em produtos para idosos. III. A indstria de brinquedos tem como principal meta a venda de jogos e brinquedos para idosos que vivem sozinhos. est(o) condizente(s) com o texto:

(ITA - 2002) A equao qumica que representa a reao de decomposio do iodeto de hidrognio : 2 HI(g) H2(g) + I2(g); H (25C) = - 51,9 kJ. Em relao a esta reao, so fornecidas as seguintes informaes: a) A variao da energia de ativao aparente dessa reao ocorrendo em meio homogneo igual a 183,9 kJ. b) A variao da energia de ativao aparente dessa reao ocorrendo na superfcie de um fio de ouro igual a 96,2 kJ. Considere, agora, as seguintes afirmaes relativas a essa reao de decomposio: I. A velocidade da reao no meio homogneo igual a da mesma reao realizada no meio heterogneo. II. A velocidade da reao no meio homogneo diminui com o aumento da temperatura. III. A velocidade da reao no meio heterogneo independe da concentrao inicial de iodeto de hidrognio. IV. A velocidade da reao na superfcie do ouro independe da rea superficial do ouro. V. A constante de velocidade da reao realizada no meio homogneo igual a da mesma reao realizada no meio heterogneo. Destas afirmaes, esto CORRETAS

(ITA - 2002 - 1a Fase) A figura mostra uma espira condutora que se desloca com velocidade constante v numa regio com campo magntico uniforme no espao e constante no tempo. Este campo magntico forma um ngulo com o plano da espira. A fora eletromotriz mxima produzida pela variao de fluxo magntico no tempo ocorre quando

(ITA - 2002 - 1a Fase) Considere a regio do plano cartesiano xy definida pela desigualdade . Quando esta regio rodar um ngulo de radianos em torno da reta , ela ir gerar um slido de superfcie externa total com rea igual a

(ITA - 2002 - 1a Fase) O frasco mostrado na figura a seguir contm uma soluo aquosa saturada em oxignio, em contato com ar atmosfrico, sob presso de 1 atm e temperatura de 25 C. Quando gs borbulhado atravs desta soluo, sendo a presso de entrada do gs maior do que a presso de sada, de tal forma que a presso do gs em contato com a soluo possa ser considerada constante e igual a 1 atm, ERRADO afirmar que a concentrao de oxignio dissolvido na soluo