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621Q54083 | Matemática, MMC, Vestibular, Vestibular

No alto da torre de uma emissora de televisão, duas luzes "piscam" com frequências diferentes. A primeira "pisca" 15 vezes por minuto e a segunda "pisca" 10 vezes por minuto. Se, num certo instante, as luzes piscam simultaneamente, após quantos segundos elas voltarão a "piscar" simultaneamente?
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  5. ✂️

622Q54423 | Matemática, Conceitos Básicos e Conjuntos, Vestibular, Vestibular

(UFRS) Se a = 23,5, então:
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  2. ✂️
  3. ✂️
  4. ✂️
  5. ✂️

623Q266444 | Inglês, Vestibular, UFPR, UFPR

Texto associado.

As questões 75 a 78 referem–se ao texto a seguir.

In recent years there have been suggestions that, instead of raising sheep, Australia should be raising kangaroos, which (unlike sheep) are native Australian species that are adapted to Australian plants and climates. It is claimed that the soft paws of kangaroos are less damaging to soil than are the hard hooves of sheep. Kangaroo meat is lean, healthy, and (in my opinion) absolutely delicious. In addition to their meat, kangaroos yield valuable hides1. All of those points are cited as arguments to support replacing sheep herding with kangaroo ranching.
However, that proposal faces real obstacles, both biological and cultural ones. Unlike sheep, kangaroos are not herd animals that will docilely obey one shepherd and a dog, or that can be rounded up and marched obediently up ramps into trucks for shipment to the slaughterhouse. Instead, kangaroo ranchers have to hire hunters to chase down and shoot their kangaroos one by one. Further problems with kangaroos are their mobility and ability to jump fences: if you invest in promoting growth of a kangaroo population on your property, and if your kangaroos perceive some inducement to move (such as rain falling somewhere els(E), your valuable crop of kangaroos may end up 30 miles away on somebody else?s property. Kangaroo meat is accepted in Germany and some is exported there, but the sale of kangaroo meat faces cultural obstacles elsewhere. For Australians, kangaroo meat has little appeal, and they continue to prefer their more traditional types of meat, especially lamb and beef. Many Australian animal welfare advocates oppose kangaroo harvesting, not taking into consideration the fact that living conditions and slaughter methods are much crueler for domestic sheep and cattle than for wild kangaroos. The U.S. explicitly forbids the importation of kangaroo meat because we find the beasts cute, and because a congressman?s wife heard that kangaroos are endangered. Some kangaroo species are indeed endangered, but ironically the species actually harvested for meat are abundant pest animals in Australia.

(DIAMOND, J. Collapse. New York: Penguin, 2005. Adaptado) 1 hides = skins

The text mentions obstacles to raising kangaroos for meat. Which of the statements below is NOT in the text?

  1. ✂️
  2. ✂️
  3. ✂️
  4. ✂️
  5. ✂️

624Q266252 | Francês, Vestibular, UFPR, UFPR

Texto associado.

O texto a seguir é referência para as questões 73 a 75.

LA FIN DU CALVAIRE DE STÉPHANE TAPONIER ET HERVÉ GHESQUIÈRE: OTAGES EN AFGHANISTAN DEPUIS FIN 2009.

Un lien avec le retrait des troupes ou Ben Laden?
Hasard ou pas, la libération des otages suit de près l?annonce, la semaine dernière, du retrait partiel des troupes françaises en Afghanistan. «Loin de moi l?idée de dénigrer tel ou tel effort du gouvernement, mais il y a un contexte international qui a facilité cette libération, avec notamment l?annonce du retrait des troupes françaises d?Afghanistan», a déclaré Ségolène Royal. Au Ministère des Affaires Etrangères, on se refuse en tous les cas à faire le lien entre les deux événements. «Honnêtement, je n?en sais rien, répond le porte-parole du Quai d?Orsay, Bernard Valéro. Ce que je sais, c?est qu?il s?agit de l?aboutissement d?un long travail». «Le temps des Afghans n?est pas le nôtre, précise-t-il, sous-entendant que le dénouement de l?affaire serait à chercher en amont de l?annonce du retrait des troupes. Hervé Morin, ancien ministre de la Défense, balaie également toute possibilité de lien entre les deux actus. «Je n?y crois pas un seul instant (...). En revanche, qu?il y ait pu avoir un lien entre la mort de Oussama Ben Laden et la libération des otages, ce n?est pas impossible». Gérard Longuet, l?actuel ministre de la Défense, avait déjà estimé que le décès du chef d?Al-Qaida pourrait jouer «positivement». Avant d?être recadré par le premier ministre. A.S.

(20 minutes, no 2078, 30 juin 2011, p. 6 )

Signalez l?option qui présente l?objet de la réflexion faite dans le texte ci-dessus.

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  2. ✂️
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  5. ✂️

625Q54426 | Matemática, Conceitos Básicos e Conjuntos, Vestibular, Vestibular

(Cefet-RJ) A soma de dois números é 6. O valor máximo do produto entre eles é:
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626Q265974 | Matemática, Vestibular, ITA, ITA

Considere o polinômio complexo p(z) = z4+a z3+5 z2?i?z?6, em que a é uma constante complexa. Sabendo que 2i é uma das raízes de p(z) = 0, as outras três raízes são

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  5. ✂️

627Q266061 | Inglês, Vestibular, UFPR, UFPR

Texto associado.

As questões 75 a 78 referem–se ao texto a seguir.

In recent years there have been suggestions that, instead of raising sheep, Australia should be raising kangaroos, which (unlike sheep) are native Australian species that are adapted to Australian plants and climates. It is claimed that the soft paws of kangaroos are less damaging to soil than are the hard hooves of sheep. Kangaroo meat is lean, healthy, and (in my opinion) absolutely delicious. In addition to their meat, kangaroos yield valuable hides1. All of those points are cited as arguments to support replacing sheep herding with kangaroo ranching.
However, that proposal faces real obstacles, both biological and cultural ones. Unlike sheep, kangaroos are not herd animals that will docilely obey one shepherd and a dog, or that can be rounded up and marched obediently up ramps into trucks for shipment to the slaughterhouse. Instead, kangaroo ranchers have to hire hunters to chase down and shoot their kangaroos one by one. Further problems with kangaroos are their mobility and ability to jump fences: if you invest in promoting growth of a kangaroo population on your property, and if your kangaroos perceive some inducement to move (such as rain falling somewhere els(E), your valuable crop of kangaroos may end up 30 miles away on somebody else?s property. Kangaroo meat is accepted in Germany and some is exported there, but the sale of kangaroo meat faces cultural obstacles elsewhere. For Australians, kangaroo meat has little appeal, and they continue to prefer their more traditional types of meat, especially lamb and beef. Many Australian animal welfare advocates oppose kangaroo harvesting, not taking into consideration the fact that living conditions and slaughter methods are much crueler for domestic sheep and cattle than for wild kangaroos. The U.S. explicitly forbids the importation of kangaroo meat because we find the beasts cute, and because a congressman?s wife heard that kangaroos are endangered. Some kangaroo species are indeed endangered, but ironically the species actually harvested for meat are abundant pest animals in Australia.

(DIAMOND, J. Collapse. New York: Penguin, 2005. Adaptado) 1 hides = skins

The text mentions advantages of raising kangaroos instead of sheep. Which of the statements below is NOT in the text?

  1. ✂️
  2. ✂️
  3. ✂️
  4. ✂️
  5. ✂️

628Q54484 | Matemática, Exponencial e Logaritmo, Vestibular, Vestibular

(PUC-SP) A soma dos n primeiros termos da seqüência (6, 36, 216, …, 6n , …) é 55986. Nessas condições, considerando log 2 = 0,30 e log 3 = 0,48, o valor de log n é:
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629Q54265 | História, História da América, Vestibular, Vestibular

(PUC-RJ) “Diziam que haviam visto chegar em sua terra certas pessoas muito diferentes de nosso costume e vestiário, que pareciam viracochas, que é o nome pelo qual antigamente denominamos o Criador de todas as coisas...; primeiro porque se diferenciavam muito de nosso traje e semblante...; andavam em uns animais muito grandes, os quais tinham os pés de prata...; porque os viram falar sozinhos em uns panos brancos como uma pessoa falava com outra...; uns eram de barbas negras e outros de barbas vermelhas e os viam comer em prata; e também porque tinham yllapas, nomes que nós temos para os trovões e isto diziam por causa dos arcabuzes, porque pensavam que eram trovões do céu...”

Descrição dos conquistadores atribuída a Titu Cusi Yupanqui, filho de Manco II que ocupou o trono inca em Vilacamba, de 1557 a 1570, ditada ao agostiniano Frei Marcos Garcia.

O relato apresenta algumas idéias que, num primeiro momento, os incas construíram a respeito dos conquistadores espanhóis. Sobre elas estão corretas as seguintes afirmativas, com exceção de: perioridade militar e técnica ignorada até então pelos incas.
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631Q54351 | História, Idade Contemporânea, Vestibular, Vestibular

(PUC-RS) Após o término da Segunda Guerra Mundial, o governo norte-americano lançou o Plano Marshall, que se constituiu em uma manobra estratégica fundamental no interior da Guerra Fria. Este plano visava a
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632Q946628 | Geografia, População brasileira, Vestibular, UNIVESP, UNIVESP, 2019

De acordo com dados do Instituto Brasileiro de Geografia e Estatística (IBGE), nos dias de hoje, a população brasileira está perto de atingir os 210 milhões de habitantes. Porém, apesar de seu crescimento contínuo a população brasileira segue a tendência mundial de declínio da taxa de crescimento. O crescimento da população brasileira, nas duas últimas décadas, está ligado principalmente
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633Q266439 | Espanhol, Vestibular, UFPR, UFPR

Texto associado.

El texto que sigue te servirá para contestar las preguntas 73, 74, 75, 76 y 77.

Guía de estereotipos para 2012

Reino Unido adoctrina sobre el trato a los turistas según su nacionalidad con vistas a los Juegos Olímpicos


Los españoles gritan y gesticulan al hablar, pero eso no es señal de arrogancia. No le guiñes el ojo a un turista de Hong Kong. Evita el contacto físico si viene de la India... Puede parecer un catálogo de tópicos pero es una guía para que los londinenses no metan la pata durante los Juegos Olímpicos de 2012 y el Reino Unido mejore posiciones en la tabla que mide la calidad de la bienvenida que 50 países dan a sus visitantes.
España está bien colocada: cuarta, empatada con Nueva ?elanda y solo superada por Canadá, Italia y Australia. Pero los británicos están en la posición 14. VisitBritain, un organismo que trabaja en colaboración con el Gobierno y la industria para promover el turismo, quiere así "ayudar desde los hoteleros a los taxistas a proporcionar un servicio más eficiente y útil que tenga en cuenta las necesidades culturales" de los extranjeros. ¿Y qué mejor para ello que tener una idea más clara del visitante y alguna pista sobre lo que no hay que hacer?
¿Quién no ha visto sonreír a un turista japonés? Pero eso no significa necesariamente que el buen hombre esté feliz. "Los japoneses tienden a sonreír cuando están furiosos, avergonzados, tristes o decepcionados", advierte VisitBritain. Si el turista viene de Hong Kong es mejor no guiñarle un ojo porque se considera grosero. Con un brasileño es mejor no hablar de cosas personales como edad, salario o algo parecido a un elogio a Argentina.
Los españoles son de carácter fuerte, muy expresivos, habladores, directos y francos. "Tienden a hablar muy rápido y muy alto y el tono suena imperativo, aunque eso no significa que intenten mostrar superioridad o enfado", advierte el manual. Lamentablemente, aunque hablan mucho, solo uno de cada cuatro es capaz de mantener una conversación en inglés. Los españoles, añade la guía, disfrutan comiendo y fuman como carreteros pero beben menos de lo que se podría esperar de un país que produce tanto vino. Les encanta contar chistes y reírse de sí mismos. Su ancestral machismo está declinando y España es hoy "una sociedad muy igualitaria".
Los portugueses, en cambio, se manejan bien en inglés y si algo les molesta es ser considerados una rama de España. Son nostálgicos, tolerantes, acostumbrados a enfrentarse a otras culturas y es difícil ofenderles. No son muy calurosos y expresivos "pero si te dan los buenos días es porque lo sienten de verdad".
No pierdas los nervios delante de un alemán porque es señal de debilidad; levántate cuando entra una persona mayor en la habitación; no grites; no masques chicle en público y cuidado con el uso de los dedos: señalar con el pulgar hacia arriba en señal de aprobación es de mala educación y apuntar a tu propia sien con el índice es un insulto. ¿Y dónde no?

(Texto adaptado de El País Digital – 15/08/2010. http://www.elpais.com/articulo/revista/agosto/Guia/estereotipos/2012/elpepirdv/20100815elpepirdv_2/Tes)

Tras la lectura del texto podemos decir que:

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  2. ✂️
  3. ✂️
  4. ✂️
  5. ✂️

634Q265958 | Inglês, Vestibular, UFPR, UFPR

Texto associado.

As questões 79 e 80 referem–se ao texto a seguir.

A team from Northwestern University, Illinois, found that when you eat, not just how you eat, could make a big difference. Scientists found that when mice ate at unusual hours, they put on twice as much weight, despite exercising and eating as much as the other mice. The study, in the journal Obesity, is said to be the first to show directly that there is a "wrong" time to eat. Recent studies have suggested that circadian rhythms, the body?s internal clock, have a role in how our bodies use up energy. However, this had been difficult to prove definitively.
Deanna Arble, the main author of the study, said: "One of our research interests is shift workers1, who tend to be overweight. This got us thinking that eating at the wrong time of day might be contributing to weight gain".
The researchers looked at two groups of mice over a six–week period. Both groups were fed a high–fat diet, but at different times of the mice "waking cycle". One group of mice ate at times when they would normally be asleep. They put on twice as much weight. This was despite the fact that they did the same level of activity, and ate the same amount of food, as the other mice. The researchers believe that the findings may have implications for people worried about their weight.

1 shift workers = people who work at night

(http//www.bbc.co.uk – 08/09/2009. Adapted.)

Are the statements below TRUE (T) or FALSE (F), according to the text?

( ) The study was motivated by a tendency for obesity among shift workers.
( ) There may be a connection between circadian rhythms and the way our bodies use up energy.
( ) Two groups of researchers studied the mice at different times.
( ) The mice that ate when they would normally be asleep gained more weight.
( ) The researchers think that the results are not relevant for people worried about their weight.

Mark the alternative which presents the correct sequence, from top to bottom.

  1. ✂️
  2. ✂️
  3. ✂️
  4. ✂️
  5. ✂️

635Q54263 | História, História da América, Vestibular, Vestibular

(Unifor-CE) O “exclusivo” comercial pretendido pela Espanha no século XVI foi o mais austero entre todos os que surgiram no período mercantilista. À Casa de Contratación, sediada em Sevilha, cabia:
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636Q266158 | Matemática, Vestibular, USP, FUVEST

O polinômio p(x) x3 +ax2+bx, em que a e b são números reais, tem restos 2 e 4 quando dividido por x -2 e x - 1, respectivamente.
Assim, o valor de a é

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637Q266432 | Inglês, Vestibular, UFPR, UFPR

Texto associado.

O texto a seguir é referência para as questões 77 a 80.

Germans make wonderful beer. Yet the productivity of the German beer industry is only 43 percent that of the U.S. beer industry. Meanwhile, the German metalworking and steel industries are equal in productivity to their American counterparts. Since the Germans are evidently capable of organizing industries well, why can?t they do so when it comes to beer?
It turns out that the German beer industry suffers from small?scale production. There are a thousand tiny beer companies in Germany, shielded from competition with one another because each German brewery has virtually a local monopoly, and they are also shielded from competition with imports. The United States has 67 major beer breweries, producing 23 billion liters of beer per year. All of Germany?s 1,000 breweries combined produce only half as much. Thus the average U.S. brewery produces 31 times more beer than the average German brewery.
This fact results from local tastes and German government policies. German beer drinkers are fiercely loyal to their local brand, so there are no national brands in Germany analogous to our Budweiser, Miller, or Coors. Instead, most German beer is consumed within 30 miles of the factory where it is brewed. Therefore, the German beer industry cannot profit from economies of scale. In the beer business, as in other businesses, production costs decrease greatly with scale. The bigger the refrigerating unit for making beer, and the longer the assembly line for filling bottles with beer, the lower the cost of manufacturing beer. Those tiny German beer companies are relatively inefficient. There?s no competition; there are just a thousand local monopolies.
The local beer loyalties of individual German drinkers are reinforced by German laws that make it hard for foreign beers to compete in the German market. The German government has so?called beer purity laws that specify exactly what can go into beer. Not surprisingly, those government purity specifications are based on what German breweries put into beer, and not what American, French, and Swedish breweries like to put into beer. Because of those laws, not much foreign beer gets exported to Germany, and because of inefficiency and high prices much less of that wonderful German beer than you would otherwise expect gets sold abroad. (Before you object that German Löwenbräu beer is widely available in the United States, please read the label on the next bottle of Löwenbräu that you drink here: it?s not produced in Germany but in North America, under license, in big factories with North American productivities and efficiencies of scal(E).

(Diamond, J. ,2005. Guns, Germs, and Steel. New York: Norton.)

Are the statements true (T) or false (F), according to the text?
( ) The United States produces less beer than Germany.
( ) The German steel industry is better organized than the German beer industry.
( ) The German metalworking industry is more productive than the American metalworking industry.
( ) In Germany there are more factories producing beer than in the United States.
( ) 43% of the beer sold in the United States is produced in Germany.

Mark the alternative which presents the correct sequence, from top to bottom.

  1. ✂️
  2. ✂️
  3. ✂️
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  5. ✂️

638Q54480 | Matemática, Exponencial e Logaritmo, Vestibular, Vestibular

(F.M. Itajubá-MG) Resolvendo a inequação log1/2 (x – 1) – log1/2 (x + 1) < log1/2 (x – 2) + 1 encontramos:
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639Q265944 | Geografia, Vestibular, USP, FUVEST

O Brasil é uma República Federativa que apresenta muitas desigualdades regionais. Confrontando-se dois aspectos – a igualdade jurídica entre os Estados-membros e as disparidades econômicas entre as regiões – pode-se afirmar que

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640Q266271 | Inglês, Vestibular, UFPR, UFPR

Texto associado.

As questões 75 a 78 referem–se ao texto a seguir.

In recent years there have been suggestions that, instead of raising sheep, Australia should be raising kangaroos, which (unlike sheep) are native Australian species that are adapted to Australian plants and climates. It is claimed that the soft paws of kangaroos are less damaging to soil than are the hard hooves of sheep. Kangaroo meat is lean, healthy, and (in my opinion) absolutely delicious. In addition to their meat, kangaroos yield valuable hides1. All of those points are cited as arguments to support replacing sheep herding with kangaroo ranching.
However, that proposal faces real obstacles, both biological and cultural ones. Unlike sheep, kangaroos are not herd animals that will docilely obey one shepherd and a dog, or that can be rounded up and marched obediently up ramps into trucks for shipment to the slaughterhouse. Instead, kangaroo ranchers have to hire hunters to chase down and shoot their kangaroos one by one. Further problems with kangaroos are their mobility and ability to jump fences: if you invest in promoting growth of a kangaroo population on your property, and if your kangaroos perceive some inducement to move (such as rain falling somewhere els(E), your valuable crop of kangaroos may end up 30 miles away on somebody else?s property. Kangaroo meat is accepted in Germany and some is exported there, but the sale of kangaroo meat faces cultural obstacles elsewhere. For Australians, kangaroo meat has little appeal, and they continue to prefer their more traditional types of meat, especially lamb and beef. Many Australian animal welfare advocates oppose kangaroo harvesting, not taking into consideration the fact that living conditions and slaughter methods are much crueler for domestic sheep and cattle than for wild kangaroos. The U.S. explicitly forbids the importation of kangaroo meat because we find the beasts cute, and because a congressman?s wife heard that kangaroos are endangered. Some kangaroo species are indeed endangered, but ironically the species actually harvested for meat are abundant pest animals in Australia.

(DIAMOND, J. Collapse. New York: Penguin, 2005. Adaptado) 1 hides = skins

According to the text, Australians do not eat kangaroo meat because:

  1. ✂️
  2. ✂️
  3. ✂️
  4. ✂️
  5. ✂️
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