Questões - UEFS | Gabarito e resoluções

Sabe-se que os raios-X so ondas eletromagnticas com frequncia maiores do que as da radiao ultravioleta. Sobre os raios-X, marque com V as verdadeiras e com F, as falsas. ( ) Os raios-X constituem uma radiao ionizante. ( ) Os raios-X tm frequncias maiores que do que da luz visvel. ( ) A velocidade de propagao dos raios-X igual velocidade de propagao da luz, no vcuo. A alternativa que indica a sequncia correta, de cima para baixo, a

I. Cinquenta anos! Não era preciso confessá-lo. Já se vai sentindo que o meu estilo não é tão lesto como nos primeiros dias. Naquela ocasião, cessado o diálogo com o oficial da marinha, que enfiou a capa e saiu, confesso que fiquei um pouco triste. Voltei à sala, lembrou-me dançar uma polca, embriagar-me das luzes, das flores, dos cristais, dos olhos bonitos, e do burburinho surdo e ligeiro das conversas particulares. E não me arrependo; remocei. Mas, meia hora depois, quando me retirei do baile, às quatro da manhã, o que é que fui achar no fundo do carro? Os meus cinquenta anos. Lá estavam eles, os teimosos, não tolhidos de frio, nem reumáticos, mas cochilando a sua fadiga, um pouco cobiçosos de cama e de repouso. Então, e vejam até que ponto pode ir a imaginação de um homem com sono, então pareceu-me ouvir de um morcego encarapitado no tejadilho: Senhor Brás Cubas, a rejuvenescência estava na sala, nos cristais, nas luzes, nas sedas, enfim, nos outros. ASSIS, Machado de. Cinquenta anos. Memórias póstumas de Brás Cubas. 22 ed. São Paulo: Ática 1997. p. 157. II. [...] Sabes que esta casa do Engenho Novo, nas dimensões, disposições e pinturas, é reprodução da minha antiga casa de Matacavalos. Outrossim, como te disse no capítulo II, o meu fim em imitar a outra foi ligar as duas pontas da vida, o que aliás não alcancei. Pois o mesmo sucedeu àquele sonho do seminário, por mais que tentasse dormir e dormisse. Donde concluo que um dos ofícios do homem é fechar e apertar muito os olhos, e ver se continua pela noite velha o sonho truncado da noite moça. ASSIS, Machado de. Uma ideia e um escrúpulo. D. Casmurro. 29. ed. São Paulo: Ática, 1995. p. 96. No fragmento II, o narrador

O número de soluções da equação 3cos2 x = 2 + 2senx, no intervalo [0, 2], é

Um carro de massa 10 toneladas parte do repouso e percorre, com aceleração constante, uma distância de 40,0m, em 10 segundos. Sua quantidade de movimento, em kg.m/s, no final do percurso, é de

O Pão de Açúcar, situado no Rio de Janeiro, é uma grande elevação constituída por rochas gnáissicas (rocha metamórfica). Possui 390m de altitude e se localiza na entrada da baía de Guanabara. Seu nome é uma denominação brasileira, utilizada para designar os cumes arredondados e abruptos do relevo. (ADAS, 2001, p. 433). O principal agente formador desse tipo de relevo é

Com relação ao município de Feira de Santana, marque V nas afirmativas verdadeiras e F, nas falsas. ( ) Está localizado em um extenso planalto cristalino, entre o recôncavo e os tabuleiros úmidos do nordeste baiano. ( ) Possui um aglomerado industrial focado no setor de alimentos e na produção de biodiesel. ( ) È conhecido como a Princesa do Sertão por estar totalmente inserido na sub-região do sertão nordestino. ( ) Faz parte da mesorregião do Centro Norte baiano estabelecendo divisa com doze municípios, entre esses, Santa Bárbara e Tanquinho. A alternativa que indica a sequência correta, de cima para baixo, é a

Entrevistador: Em vários países muçulmanos, a mulher que tirar o véu em público pode ser presa ou espancada pela polícias religiosa. Isso é moderno? Abdouni: Essas ações não são preceitos islâmicos, já que se segue o Islã por meio da convicção, e não da imposição. Porém, sabemos o que acontece quando a mulher tira a roupa e se expõe, principalmente no mundo ocidental: ela é desrespeitada de forma inaceitável. (BARELLA, 2005, p. 14-15). O trecho da entrevista com o líder muçulmano Ali Mohamed Abdouni, quanto à situação da mulher na sociedade ocidental contemporânea, exemplifica

Tomado pela via linguagem diplomática, o conflito na Síria poderia ser descrito como uma guerra civil em que todo um lado, o governo e suas milícias, luta contra o outro, os rebeldes armados. Pelas notícias que chegaram ao longo de quinze meses, narradas pelos poucos jornalistas que entraram na Síria e pelos observadores internacionais, a sensação é outra. O que acontece no país árabe é um massacre da população civil, em que o poder descomunal e violento de um dos lados, o governo, não enfrenta um contrapeso relevante. (TEIXEIRA, 2012, p. 116). A cautela dos países ocidentais quanto à intervenção internacional armada na Síria e o discurso de proteção à população civil, face aos ataques do governo sírio, relacionamse com

A hipótese heterotrófica proposta pelos pesquisadores Oparin e Haldane defende a importância de uma evolução química que teria antecedido a formação do primeiro protobionte. A respeito desse tema, pode-se afirmar:

A team of scientists has shown that the glaciers in one of Asias major mountain ranges are defying the general tendency towards shrinkage, and have in fact expanded slightly over the last few years. The range in 5 question is the Karakoram, which straddles Pakistan, India and China on the north-western end of the Himalayas. Glacial decline and the gradual loss of polar ice caps has been a worrying trend over recent decades, 10 but scientists have been aware of an apparently curious anomaly with the Karakoram, which contains some of the worlds biggest mountains including the second highest, K2. It has about 20,000 square kilometers of glaciers, accounting for three percent of the total area of 15 ice outside the Antarctic and Greenland ice sheets. Now a team of French scientists has carried out a detailed survey over a large area of the range using sophisticated remote-sensing measurements. Writing in the scientific journal, Nature, they say they found that in 20 the first years of this century the Karakorams glaciers had actually expanded by a small amount, while in the neighboring Himalayas theyd been shrinking. Its unclear why this is happening, but it seems that by a quirk in the weather pattern thats not fully understood, 25 less heat is being delivered to the Karakoram and the mountains are receiving heavier falls of snow. Thickening glaciers. Disponível em: . Acesso em: 21 jul. 2012. Fill in the parentheses with T (True) or F (False). The text says: ( ) Lately, the slow melting of ice rivers and polar ice caps has been a general pattern. ( ) The Karakoram range is on the border between Pakistan, India and China. ( ) The Karakoram has around two thousand square kilometers of glaciers. ( ) The Karakorams glaciers have showed this tendency towards expansion since the beginning of the twentieth century. According to the text, the correct sequence, from top to bottom, is

A team of scientists has shown that the glaciers in one of Asias major mountain ranges are defying the general tendency towards shrinkage, and have in fact expanded slightly over the last few years. The range in 5 question is the Karakoram, which straddles Pakistan, India and China on the north-western end of the Himalayas. Glacial decline and the gradual loss of polar ice caps has been a worrying trend over recent decades, 10 but scientists have been aware of an apparently curious anomaly with the Karakoram, which contains some of the worlds biggest mountains including the second highest, K2. It has about 20,000 square kilometers of glaciers, accounting for three percent of the total area of 15 ice outside the Antarctic and Greenland ice sheets. Now a team of French scientists has carried out a detailed survey over a large area of the range using sophisticated remote-sensing measurements. Writing in the scientific journal, Nature, they say they found that in 20 the first years of this century the Karakorams glaciers had actually expanded by a small amount, while in the neighboring Himalayas theyd been shrinking. Its unclear why this is happening, but it seems that by a quirk in the weather pattern thats not fully understood, 25 less heat is being delivered to the Karakoram and the mountains are receiving heavier falls of snow. Thickening glaciers. Disponível em: . Acesso em: 21 jul. 2012. The phenomenon with the Karakoram

A team of scientists has shown that the glaciers in one of Asias major mountain ranges are defying the general tendency towards shrinkage, and have in fact expanded slightly over the last few years. The range in 5 question is the Karakoram, which straddles Pakistan, India and China on the north-western end of the Himalayas. Glacial decline and the gradual loss of polar ice caps has been a worrying trend over recent decades, 10 but scientists have been aware of an apparently curious anomaly with the Karakoram, which contains some of the worlds biggest mountains including the second highest, K2. It has about 20,000 square kilometers of glaciers, accounting for three percent of the total area of 15 ice outside the Antarctic and Greenland ice sheets. Now a team of French scientists has carried out a detailed survey over a large area of the range using sophisticated remote-sensing measurements. Writing in the scientific journal, Nature, they say they found that in 20 the first years of this century the Karakorams glaciers had actually expanded by a small amount, while in the neighboring Himalayas theyd been shrinking. Its unclear why this is happening, but it seems that by a quirk in the weather pattern thats not fully understood, 25 less heat is being delivered to the Karakoram and the mountains are receiving heavier falls of snow. Thickening glaciers. Disponível em: . Acesso em: 21 jul. 2012. The French scientists involved in the survey mentioned in the text are using

(UEFS - 2012) Thickening glaciers A team of scientists has shown that the glaciers in one of Asias major mountain ranges are defying the general tendency towards shrinkage, and have in fact expanded slightly over the last few years. The range in 5 question is the Karakoram, which straddles Pakistan, India and China on the north-western end of the Himalayas. Glacial decline and the gradual loss of polar ice caps has been a worrying trend over recent decades, 10 but scientists have been aware of an apparently curious anomaly with the Karakoram, which contains some of the worlds biggest mountains including the second highest, K2. It has about 20,000 square kilometers of glaciers, accounting for three percent of the total area of 15 ice outside the Antarctic and Greenland ice sheets. Now a team of French scientists has carried out a detailed survey over a large area of the range using sophisticated remote-sensing measurements. Writing in the scientific journal, Nature, they say they found that in 20 the first years of this century the Karakorams glaciers had actually expanded by a small amount, while in the neighboring Himalayas theyd been shrinking. Its unclear why this is happening, but it seems that by a quirk in the weather pattern thats not fully understood, 25 less heat is being delivered to the Karakoram and the mountains are receiving heavier falls of snow. Thickening glaciers. Disponvel em: https://www.bbc.co.uk/worldservice/learningenglish/language/wordsinthenews/2012/04/120417_witn_glaciers.shtml. Acesso em: 21 jul. 2012. The only false cognate from the text is in alternative

A team of scientists has shown that the glaciers in one of Asias major mountain ranges are defying the general tendency towards shrinkage, and have in fact expanded slightly over the last few years. The range in 5 question is the Karakoram, which straddles Pakistan, India and China on the north-western end of the Himalayas. Glacial decline and the gradual loss of polar ice caps has been a worrying trend over recent decades, 10 but scientists have been aware of an apparently curious anomaly with the Karakoram, which contains some of the worlds biggest mountains including the second highest, K2. It has about 20,000 square kilometers of glaciers, accounting for three percent of the total area of 15 ice outside the Antarctic and Greenland ice sheets. Now a team of French scientists has carried out a detailed survey over a large area of the range using sophisticated remote-sensing measurements. Writing in the scientific journal, Nature, they say they found that in 20 the first years of this century the Karakorams glaciers had actually expanded by a small amount, while in the neighboring Himalayas theyd been shrinking. Its unclear why this is happening, but it seems that by a quirk in the weather pattern thats not fully understood, 25 less heat is being delivered to the Karakoram and the mountains are receiving heavier falls of snow. Thickening glaciers. Disponível em: . Acesso em: 21 jul. 2012. Considering language use in the text, its correct to say

Like a black light poster come to life, a group of bioluminescent fungi collected from Ribeira Valley Tourist State Park near São Paulo, Brazil, emanates a soft green glow when the lights go out. The mushrooms are part of 5 the genus Mycena, a group that includes about 500 species worldwide. Of these only 33 are known to be bioluminescent capable of producing light through a chemical reaction. Since 2002, Cassius Stevani, professor of Chemistry 10 at the University of São Paulo, Dennis Desjardin, professor of mycology at San Francisco State University in California, and Marina Capelari of Brazils Institute of Botany have discovered 10 more bioluminescent fungi species four of which are new to science in Brazils 15 tropical forests. The work, Stevani says, has increased the number of glowers known since the 1970s by 30 percent. In addition to mushrooms, a variety of marine animals, select species of bacteria, insects, and annelids 20 (earthworms) are known to be bioluminescent. Bioluminescence creates cold light emissions with low thermal radiation. An enzyme called luciferase triggers a pigment called luciferin to oxidize, and the reaction emits light. But why the fungi evolved to glow 25 this way remains a mystery, Stevani says. To get the green glow of the new specimens of bioluminescent mushrooms, Dr Desjardin and Dr Stevani had to go out on new moon nights and stumble around in the forest, running into trees, while keeping an eye out for poisonous 30 snakes and prowling jaguars. Besides helping researchers decipher how and why mushrooms glow, Stevani is studying the bioluminescent fungis ability to signal the presence of toxins in the soil. In the lab, his team has developed a procedure that 35 shows that fungi emit less light when exposed to several metals and organic pollutants. In a near future we can use it to evaluate the toxicity of environmental samples of soil and sediments, Stevani said in an email to National Geographic News. The researcher also says 40 that the fungi could serve as a tool for bioremediation (cleanup using living organisms) of contaminated soil. New glowing mushrooms found in Brazil. Disponível em: . Acesso em: The text says that the discovery of the new Brazilian glowers