Questões - ITA 2002 | Gabarito e resoluções

(ITA - 2002 - 1a Fase) Numa prtica de laboratrio, um estudante conectou uma bateria a uma resistncia, obtendo uma corrente i1 . Ligando em srie mais uma bateria, idntica primeira, a corrente passa ao valor i2. Finalmente, ele liga as mesmas baterias em paralelo e a corrente que passa pelo dispositivo torna-se i3. Qual das alternativas abaixo expressa uma relao existente entre as correntes i1, i2 e i3 ?

(ITA - 2002- 1a Fase) Give Us the Olympics, or Well Shoot By June Thomas Posted Tuesday, July 10, 2001, at 10:00 a.m. PT With the International Olympic Committee set to announce the 2008 Olympic Games venue on Friday, several newspapers editorialized about Beijings suitability. CanadasGlobe and Mail admitted bias in favor of its hometown (Toronto and Paris are Beijings strongest rivals), but declared: Regardless of who the other contenders are, it would be wrong to award the Games to Beijing... It would reward an authoritarian regime that tramples on the most basic rights of the Chinese people. TheFinancial Times counseled the IOC members to ignore political factors when making their selection: Despite the ugliness of the Chinese regime, the world is willing to deal with it in political, institutional, cultural and economic terms. Why should the Olympic Games be something different? An op-ed in theSydney Morning Heraldargued that China doesnt deserve to host: There is no point in isolating China. It makes sense to trade with China and to facilitate its entry into the World Trade Organisation. But there is no reason to indulge the Beijing regime. TheHeralds Chinacorrespondent offered a pragmatic argument: Giving the Games to Beijing will probably do nothing to advance human rights in China. The authorities will be keen to keep a lid on dissent before the Games. But not granting Beijing the Games is unlikely to help promote greater human rights in the short or long term... Passing over Beijing may lead to a hardening of Chinas attitudes in its relations with the West. It would certainly lead to a binge of nationalistic outrage with unforeseeable results. In a worst-case scenario it may encourage Chinas leadership to speed up its plans to forcibly reunify Taiwan with the motherland. An op-ed in Hong KongsSouth China Morning Poststruck a similar note of alarm: By stirring up the publics feelings to a frenzy over the Olympic bid, the Government plans to distract peoples attention from the problems of rampant corruption, a rising unemployment rate and a lack of confidence in the Communist Party. In the scenario that China loses the bid, the government-controlled media will direct the blame onto the United States and Western countries and once again incite anti-Western sentiments. With an almost paranoid mentality that the whole world is against them over their Olympic bid, the Chinese Government will be more militarily aggressive and refuse to co-operate with the west on such important issues as nuclear non-proliferation and regional peace. www.slate.com N.B. Op-ed: (Am E) the page opposite the EDITORIAL page in many American newspapers, which usually contains interesting feature articles on current subjects (LONGMAN DICTIONARY OF ENG. LANGUAGE AND CULTURE). Assinale a opo que melhor representa o posicionamento (favorvel ou desfavorvel) dos jornais mencionados na reportagem com relao realizao dos jogos olmpicos de 2008 na China. Globe and Mail Financial Times Sydney Morning Herald Heralds China South China Morning Post favorvel/ desfavorvel favorvel/ desfavorvel favorvel/ desfavorvel favorvel/ desfavorvel favorvel/ desfavorvel

(ITA - 2002 - 1a Fase) Considere os valores da temperatura de congelao de solues 1 milimol/L dasseguintes substncias: I.Al2(SO4)3 II. Na2B4O7 III. K2Cr2O7 IV. Na2CrO4 V. Al(NO3)3.H2O Assinale a alternativa CORRETA relativa comparao dos valores dessas temperaturas.

(ITA - 2002 - 1a Fase) Seja a matriz O valor de seu determinante

(ITA - 2002 - 1a Fase) American News POLITICS (...) Less than a month after being thrust into the role of Senate Majority Leader, Daschle has brushed past the objections of President Bush... FLASH POINTS IN THE SENATE 1.Democrats hope to capitalize on public disenchantment with the Bush energy plan by introducing one with greater emphasis on conservation, energy efficiency, and tax credits to promote green technology. 2. Senate Dems will try to force Bush to accept a broader, more expensive package of prescription benefits for seniors. Showdown issue: who shall run the program - the Medicare system or states and private insures? 3. Daschle and Bush are both free-traders, however, a fast-track bill without provisions to protect the environment or international labor standards - like one backed by House Republicans - will face trouble. 4. The Bushies and Senate Democrats have reached an uneasy truce in the war over federal judgeships. But expect a fight if Daschle concludes that the White House is trying to pack the judiciary with conservative activists. Business Week (adapted) July 16, 2001. De acordo com o texto, dentre os temas em pauta no senado americano pode-se destacar:

(ITA - 2002 - 1a Fase) Um capacitor de capacitncia igual a 0,25.106 F carregado at um potencial de 1,00.105 V, sendo ento descarregado at 0,40.105 V num intervalo de tempo de 0,10 s, enquanto transfere energia para um equipamento de raios-X. A carga total, Q, e a energia, , fornecidas ao tubo de raios-X, so melhor representadas respectivamente por

(ITA - 2002 - 1a Fase) Considere os valores da temperatura de congelao de solues 1 milimol/L dasseguintes substncias: I. II. III. IV. V. Assinale a alternativa CORRETA relativa comparao dos valores dessas temperaturas.

(ITA - 2002 - 1a Fase) Qual das substncias a seguir apresenta isomeria geomtrica?

(ITA - 2002 - 1a Fase) American News POLITICS (...) Less than a month after being thrust into the role of Senate Majority Leader, Daschle has brushed past the objections of President Bush... FLASH POINTS IN THE SENATE 1.Democrats hope to capitalize on public disenchantment with the Bush energy plan by introducing one with greater emphasis on conservation, energy efficiency, and tax credits to promote green technology. 2. Senate Dems will try to force Bush to accept a broader, more expensive package of prescription benefits for seniors. Showdown issue: who shall run the program - the Medicare system or states and private insures? 3. Daschle and Bush are both free-traders, however, a fast-track bill without provisions to protect the environment or international labor standards - like one backed by House Republicans - will face trouble. 4. The Bushies and Senate Democrats have reached an uneasy truce in the war over federal judgeships. But expect a fight if Daschle concludes that the White House is trying to pack the judiciary with conservative activists. Business Week (adapted) July 16, 2001. Qual das expresses a seguir, extradas do texto, NO indica expectativa/ao futura?

(ITA - 2002 - 1a Fase) Sejam A e B matrizes quadradas de ordem n tais que AB = A e BA = B. Ento, igual a

(ITA - 2002- 1a Fase) Uma mquina trmica reversvel opera entre dois reservatrios trmicos de temperaturas 100 C e 127 C, respectivamente, gerando gases aquecidos para acionar uma turbina. A eficincia dessa mquina melhor representada por

(ITA - 2002 - 1a Fase) Seja A uma matriz real 2 x 2. Suponha que e sejam dois nmeros distintos, e V e W duas matrizes reais 2 x 1 no-nulas, tais que AV = V e AW = W. Se a, b IR so tais que aV + bW igual matriz nula 2x1, ento a + b vale

(ITA - 2002 - 1a Fase) Considere os sistemas apresentados a seguir: I. Creme de leite II. Maionese comercial III. leo de soja IV. Gasolina V. Poliestireno expandido Desses, so classificados como sistemas coloidais:

(ITA - 2002 - 1a Fase) Um pedao de gelo flutua em equilbrio trmico com uma certa quantidade de gua depositada em um balde. medida que o gelo derrete, podemos afirmar que:

(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 primeira frase do texto refere-se: