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1-15 de 36
Questão
2010Inglês

(Ufv 2010) The Benefits of a New Space Race In October 2003 China became only the third nation to launch a human into space aboard its own rocket. Colonel Yang Liwei, Chinas first taikonaut, orbited the Earth for barely a day before returning, slightly shaken, to a landing in Mongolia. It was a significant technical achievement for a country that has been struggling to modernize its economy and its technology, and the 2Chinese government trumpeted it to its people and the world. Although Yangs flight received considerable attention around the globe, what was almost ignored is the fact that 8after his feet were firmly on the ground, the orbital module from his Shenzhou 5 spacecraft continued to circle the earth, carrying several military payloads. The module is apparently equipped both with a reconnaissance camera capable of spotting objects on the ground about a yard long, and an array of antennas for intercepting radar and other signals from hundreds of miles away. 4Despite this, Shenzhou is not something the United States should be concerned about, but should actually encourage. China is pursuing a human space program for three primary reasons: international prestige, domestic pacification, and industrial policy. A human space program enhances Chinas status as a major power, at least within the Pacific region. It also feeds nationalist hunger among the populace, making them proud of the achievements of their country even while they realize that they live under an authoritarian and corrupt government 1bread and circuses for the masses. Finally, a Chinese white paper about space makes clear that the Chinese anticipate numerous technological developments to flow from their space program. Building a space capability requires improvements in manufacturing, computers and materials that the Chinese hope to use in other areas 3of their economy. Because China is a rival to the United States, it is not in American interests to see them gain international prestige, pacify an oppressed population, or improve their technology. But now that China has entered the human spaceflight arena, and President Bush has proposed a new exploration plan, Americas best move might be to engage the Chinese in future cooperation in human spaceflight, such as dangling the possibility of sending future missions to the International Space Station, and possibly even future competition in this realm as well. For several years 6the Western science press has been filled with articles about Chinas space ambitions. Reporters have claimed that China has bold plans for a large human spaceflight program, including everything from space stations to Moon landings. Many of these reports, however, have generated bad translations of articles originally published in Chinese, or handwaved away the laws of physics.Chinas space ambitions are in reality much less dramatic and the requirements to achieve some of these goals much higher than the press has implied. Although most of these stories are false, it would be in Americas best interest if they are true, and a shrewd strategy to encourage Chinas peaceful exploration of space, with humans, is called for. Human spaceflight is enormously expensive, even in places where labor is cheap. Despite the slow and deliberate pace of the Chinese human spaceflight program so far, it is clear that China has spent a considerable amount of money to acquire this new capabilitynearly $2 billion. In addition to developing a spacecraft and launching four previous unmanned missions, China has also built a new rocket, a new launch pad, and a large assembly building for integrating all of the equipment, as well as various other support facilities, such as a tracking station in Namibia and several tracking ships. Recovery forces such as helicopters and aircraft cost additional money. China may also demonstrate the value of spaceflight at diverting domestic attention from government oppression and corruption. 5But the Chinese government is going to do this anyway with other events, such as the 2008 Olympics.As for Chinas industrial policy, the United States long ago learned that the spin-off argument is a weak one; although developing 7spacecraft does produce some useful technologies, it is generally inefficient. If you want a faster computer chip, then develop one; there is no need to go to the Moon to do so. The only demonstrated payoff of human spaceflight is prestige. (Dwayne A. Day. Available in http://www.thespacereview.com/article/137/1. Retrieved on July 23, 2009. Adapted.) The passive structure [] the Western science press has been filled with articles [] (ref. 6) can be rewritten in the active voice as:

Questão
2010Inglês

(Ufv 2010) The Benefits of a New Space Race In October 2003 China became only the third nation to launch a human into space aboard its own rocket. Colonel Yang Liwei, China’s first taikonaut, orbited the Earth for barely a day before returning, slightly shaken, to a landing in Mongolia. It was a significant technical achievement for a country that has been struggling to modernize its economy and its technology, and the 2Chinese government trumpeted it to its people and the world. Although Yang’s flight received considerable attention around the globe, what was almost ignored is the fact that 8after his feet were firmly on the ground, the orbital module from his Shenzhou 5 spacecraft continued to circle the earth, carrying several military payloads. The module is apparently equipped both with a reconnaissance camera capable of spotting objects on the ground about a yard long, and an array of antennas for intercepting radar and other signals from hundreds of miles away. 4Despite this, Shenzhou is not something the United States should be concerned about, but should actually encourage. China is pursuing a human space program for three primary reasons: international prestige, domestic pacification, and industrial policy. A human space program enhances China’s status as a major power, at least within the Pacific region. It also feeds nationalist hunger among the populace, making them proud of the achievements of their country even while they realize that they live under an authoritarian and corrupt government— 1bread and circuses for the masses. Finally, a Chinese “white paper” about space makes clear that the Chinese anticipate numerous technological developments to flow from their space program. Building a space capability requires improvements in manufacturing, computers and materials that the Chinese hope to use in other areas 3of their economy. Because China is a rival to the United States, it is not in American interests to see them gain international prestige, pacify an oppressed population, or improve their technology. But now that China has entered the human spaceflight arena, and President Bush has proposed a new exploration plan, America’s best move might be to engage the Chinese in future cooperation in human spaceflight, such as dangling the possibility of sending future missions to the International Space Station, and possibly even future competition in this realm as well. For several years 6the Western science press has been filled with articles about China’s space ambitions. Reporters have claimed that China has bold plans for a large human spaceflight program, including everything from space stations to Moon landings. Many of these reports, however, have generated bad translations of articles originally published in Chinese, or handwaved away the laws of physics.China’s space ambitions are in reality much less dramatic and the requirements to achieve some of these goals much higher than the press has implied. Although most of these stories are false, it would be in America’s best interest if they are true, and a shrewd strategy to encourage China’s peaceful exploration of space, with humans, is called for. Human spaceflight is enormously expensive, even in places where labor is cheap. Despite the slow and deliberate pace of the Chinese human spaceflight program so far, it is clear that China has spent a considerable amount of money to acquire this new capability—nearly $2 billion. In addition to developing a spacecraft and launching four previous unmanned missions, China has also built a new rocket, a new launch pad, and a large assembly building for integrating all of the equipment, as well as various other support facilities, such as a tracking station in Namibia and several tracking ships. Recovery forces such as helicopters and aircraft cost additional money. China may also demonstrate the value of spaceflight at diverting domestic attention from government oppression and corruption. 5But the Chinese government is going to do this anyway with other events, such as the 2008 Olympics.As for China’s industrial policy, the United States long ago learned that the spin-off argument is a weak one; although developing 7spacecraft does produce some useful technologies, it is generally inefficient. If you want a faster computer chip, then develop one; there is no need to go to the Moon to do so. The only demonstrated payoff of human spaceflight is prestige. (Dwayne A. Day. Available in http://www.thespacereview.com/article/137/1. Retrieved on July 23, 2009. Adapted.)   “[…] spacecraft does produce some useful technologies […]” (ref. 7). The underlined word is used, in this context, to:

Questão
2010Filosofia

(UFV 2010) Nicolau Maquiavel é uma das figuras centrais do pensamento político da Renascença. Em sua obra cruzamse os dilemas políticos concretos de seu tempo e a reflexão teórica sobre a natureza da atividade política. Das alternativas abaixo, assinale aquela que corresponde à combinação CORRETA de motivações e influências intelectuais da obra de Maquiavel:

Questão
2007Geografia

(UFV-2007) Observe a figura abaixo: No decorrer do tempo geolgico, as rochas sofrem diversas modificaes e se transformam. Com base na figura acima e nos conhecimentos sobre dinmica da crosta terrestre, assinale a afirmativaINCORRETA:

Questão
2005Português

(UFV-2005) Leia as passagens abaixo, extraídas de São Bernardo, de Graciliano Ramos: I. Resolvi estabelecer-me aqui na minha terra, município de Viçosa, Alagoas, e logo planeei adquirir a propriedade S. Bernardo, onde trabalhei, no eito, com salário de cinco tostões. II. Uma semana depois, à tardinha, eu, que ali estava aboletado desde meio-dia, tomava café e conversava, bastante satisfeito. III. João Nogueira queria o romance em língua de Camões, com períodos formados de trás para diante IV. Já viram como perdemos tempo em padecimentos inúteis? Não era melhor que fôssemos como os bois? Bois com inteligência. Haverá estupidez maior que atormentar-se um vivente por gosto? Será? Não será? Para que isso? Procurar dissabores! Será? Não será? V. Foi assim que sempre se fez. [respondeu Azevedo Gondim] A literatura é a literatura, seu Paulo. A gente discute, briga, trata de negócios naturalmente, mas arranjar palavras com tinta é outra coisa. Se eu fosse escrever como falo, ninguém me lia. Assinale a alternativa em que ambas as passagens demonstram o exercício de metalinguagem em São Bernardo:

Questão
2005Química

A amônia é um importante insumo da indústria de fertilizantes. O processo industrial de síntese desse composto, conhecido como Haber-Bosh, baseia-se na reação entre o nitrogênio e o hidrogênio gasosos, como representado pela equação: N2(g) + 3 H2(g) 2 NH3(g) H = -93 KJ/mol Sabendo que, industrialmente, esta síntese é realizada na presença de catalisadores e com temperatura e pressão elevadas, assinale a afirmativa INCORRETA relacionada com a síntese da amônia.

Questão
2005Geografia

(Ufv 2005) Analise o mapa a seguir, que mostra o consumo de clorofluorcarbono (CFC), gás utilizado em alguns aparelhos e produtos com spray, prejudicial à camada de ozônio. Consumo de CFC: Principais Responsáveis (CARVALHO, M. B. de; SANTOS, D.; PEREIRA, D. A. C. "Geografia Ciência do Espaço: espaços mundiais". São Paulo: Atual, 1998. Adaptado.) Com base na análise do mapa, assinale a alternativa CORRETA:

Questão
2004Matemática

(UFV 2004) Simplificando a expressão , x ≠ 3, obtém-se , onde o numerador w é:  

Questão
2004Biologia

(UFV 2004) Como reconhecimento de seus trabalhos pioneiros relacionados ao ciclo celular, Leland H. Hartwell, Tim Hunt e Paul Nurse receberam o Prêmio Nobel de Medicina e Fisiologia em 2001. Com relação ao ciclo celular em eucariotos, assinale a afirmativa CORRETA:

Questão
2004Biologia

(UFV 2004) A cultura de tecidos vegetais constitui uma forma de regeneração de plantas a partir de fragmentos de tecido denominados explantes. Os explantes são transferidos para meio de cultura que contém fitormônios ou reguladores de crescimento. O uso destas substâncias em concentrações adequadas induz a formação de raízes, ramos e folhas, regenerando-se uma planta com a mesma constituição genética do explante. Dentre as afirmativas abaixo, assinale a INCORRETA:

Questão
2004Geografia

(Ufv 2004) O processo de construção da União Europeia tem suas origens no Tratado de Roma de 1957, quando foi criada a Comunidade Econômica Europeia, com seis países signatários. Nas três últimas décadas do século XX, vários outros países europeus aderiram ao processo, e em 2004, outros dez países deverão fazer o mesmo. Embora a formação de grandes blocos seja uma tendência da economia mundial na passagem do século XX para o século XXI, o projeto da União Europeia procura ir além desses limites, visando a uma integração mais profunda. Entre as alternativas abaixo, assinale aquela que NÃO representa os objetivos da União Europeia.

Questão
2004Matemática

(UFV 2004) Os números inteiros estão distribuídos em 4 conjuntos A0, A1, A2 e A3, de acordo com o seguinte critério: "O número inteiro x está no conjunto Aj se o resto da divisão de x por 4 é j". Por exemplo, 7 está no conjunto A3, pois o resto da divisão de 7 por 4 é 3. Considere as seguintes afirmativas: I. Se x ∈ A1 e y ∈ A3, então x + y ∈ A0. II. Se x ∈ A2 e y ∈ A1, então x - y ∈ A2. III. Se x ∈ A2 e y ∈ A2, então x . y ∈ A0. Assinalando V para as afirmativas verdadeiras e F para as falsas, obtém-se a seguinte sequência:

Questão
2004Física

(UFV 2004) Simplificando a expressão , x ≠ 3, obtém-se , onde o numerador w é:  

Questão
2003Inglês

(Ufv 2003) The Mozart Effect 1 Mozart makes you smarter! Researchers at the University of California at Irvine discovered that people who listened to ten minutes of Mozart before taking an intelligence test scored higher than people who listened to ten minutes of relaxation instructions or who, for ten minutes, sat in silence. Scientists speculate that some kinds of music stimulate neural pathways in the brain. For a period of up to fifteen minutes after listening, the group that heard Mozart improved significantly in abstract and spatial reasoning. The one downer - that improvement is 1temporary - may be because listening is a passive activity. No one knows if listening longer results in staying smarter longer. 2 Although some studies suggest that children as young as two can benefit intellectually from music, you can be any age to take advantage of the Mozart Effect. You dont have to be a musician. You can profit from it regardless of your level of formal education. It doesnt matter what kind of job you do, nor if youve never listened to a note of Mozart in your life. You dont even have to like music! The Mozart Effect works automatically. 3 As a man, Mozart was playful, mercurial, ebullient: a quick thinker. The rapidity with which he processed information and went from one level of understanding to the next is echoed in the meticulous organization of his 2frequently complicated but 3always clear music. Mozarts music induces widely varied emotional responses in us, but it 4never allows us to wallow: it changes too 5fast. 4 Mozart had a notable career as a child virtuoso. His father, Leopold, had him playing piano at four, composing by five. Mozarts neural pathways, widened at an early age and stimulated constantly (Mozart composed more than six hundred works before he died at thirty-five), facilitated his fluent expression of musical thought. What is it in Mozart that heightens our perceptivity? Perhaps it has something to do with being able to pay attention. (Source: Adapted from Mozart for Your Mind: Boost Your Brain Power with Wolfgang Amadeus, Philips Classics Productions, CD 11.649.77.412, 1995.) All the following words are used as adverbs in the text, EXCEPT:

Questão
2003Física

(Ufv 2003) Um resistor R é colocado dentro de um recipiente de parede metálica, no qual éfeito vácuo e que possui um termômetro incrustado em sua parede externa. Para ligar oresistor a uma fonte externa ao recipiente foi utilizado um fio, com isolamento térmico queimpede transferência de calor para as paredes do recipiente. Essa situação encontra-seilustrada na figura a seguir. Ligando o resistor, nota-se que a temperatura indicada pelo termômetro aumenta, mostrandoque há transferência de calor entre o resistor e o termômetro. Pode-se afirmar que osprocessos responsáveis por essa transferência de calor, na ordem CORRETA, são:

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