Questões - UEFS 2012 | Gabarito e resoluções

O conjunto-solução da inequaçãoé

O campo elétrico entre as placas mostradas na figura é E = 2,0.104N/C e a distância entre elas é d = 7,0mm. Considere que um elétron seja liberado, a partir do repouso, nas proximidades da placa negativa, a carga do elétron em módulo igual a 1,6.1019C e a sua massa igual 9,1.1031kg. Nessas condições, o módulo da velocidade do elétron, em m/s, ao chegar à placa positiva, é de

Com base na análise do gráfico e nos conhecimentos sobre o espaço da produção industrial no Brasil, marque V nas afirmativas verdadeiras e F, nas falsas. ( ) O aumento percentual dos estabelecimentos produtivos na Região Nordeste foi proporcionado, principalmente, pelo crescimento do consumo interno. ( ) A posição ocupada pela Região Sul está relacionada, entre outros motivos, à sua proximidade com os países-membros do Mercosul. ( ) O processo de descentralização industrial ocorre do Sudeste para as demais regiões, e das capitais para o interior dos estados. ( ) No período retratado no gráfico, não se verificou aumento do número de estabelecimentos industriais no país, mas, sim, uma expressiva redução dos existentes nas metrópoles nacionais. A alternativa que indica a sequência correta, de cima para baixo, é a

Na figura, os segmentos MN e ST são diâmetros do círculo. Se o ângulo STN mede 75o e o raio do círculo, 6cm, então a distância do ponto S ao segmento MN mede, em cm,

En relación a la actitud del alumno y de la profesora, en el cuadro II de la viñeta, es correcto afirmar que es, respectivamente,

Os primeiros átomos do elemento químico seabórgio, nome dado em homenagem a Glenn T. Seaborg, ao elemento 106 da Tabela Periódica, foram identificados em 1974, em Berkeley, Califórnia. O isótopo de seabórgio mais estável, meia-vida de 21 segundos, tem massa atômica [266]u. Como os átomos desse isótopo se desintegram rapidamente, torna-se difícil o estudo das propriedades do seabórgio. Por outro lado, os demais elementos químicos do grupo 6 da Tabela Periódica apresentam algumas propriedades físicas regulares, mostradas na tabela, além de formarem os óxidos CrO3, MoO3 e WO3, e os haletos MoF6 e WF6 e MoCl6 e WCl6. A regularidade nas tendências das propriedades periódicas dos elementos químicos do grupo 6 permite corretamente estabelecer previsões sobre propriedades do elemento químico seabórgio, tais como

Según su uso en el texto, el término también expresa

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

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 fungi could serve as a tool for bioremediation [...] of contaminated soil. (l. 40-41) This fragment of the text refers to the use of

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: ______ mushrooms______ a variety of marine animals, select species of bacteria, insects, and annelids are known to be bioluminescent. According to paragraph 3, the only alternative that does not suitably complete the two blanks is