Magna Concursos

Foram encontradas 50 questões.

Sejam P, Q e R conjuntos não vazios quaisquer para os quais são verdadeiras as seguintes premissas:

premissa 1: P ∩ Q = ⌀

premissa 2: Q !$ \subset !$ R

Se a notação !$ \bar{\text{X}} !$ indica o complementar do conjunto X, então tem-se que

 

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Se A e B são conjuntos quaisquer e C(A, B) = A − (A ∩ B), então C(A, B) é igual ao conjunto

 

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Water Wars May Lie Ahead

By Neena Rai

June 29, 2011, 9:20 AM GMT

There is a famous Chinese proverb that warns “not only can water float a boat, it can sink it also.”

And with global water shortages on the horizon, climate change supporters say an extreme response will be needed from international governments to stem the potential for conflict it will create around the world.

Professor Patricia Wouters at the IHP-HELP Centre for water law, policy and science at University of Dundee, said the world could face a future of “water wars” as deterioration in climatic patterns and global population growth leave people struggling to stake their claim to the natural resource.

The World Bank in a report said that 1.4 million people could be facing water scarcity by 2025. But the Organization for Economic Co-operation and Development (OECD) forecast is even more gloomy. It estimates that 47% of the world’s population could face water stress in the same period – equivalent to more than three billion people.

The issue isn’t restricted to countries that typically see temperatures soar, such as Cyprus, which in 2009 was forced to import water in tankers and ration its use. Northern hemisphere nations like the U.K. are also finding themselves in the midst of a drought in some regions, forcing governments to start to take action. The U.K. government, for instance, plans to issue a Water White Paper this December that will focus on the future challenges facing the water industry and measures to increase protection of river flows during summer months.

Parts of the U.K. are currently marked as having drought status and other areas of the country are deemed to be at risk of drought. The U.K.’s Department for Environment Food and Rural Affairs held a second drought summit Monday, at which Secretary of State Caroline Spelman warned the prospect of a dry summer and dry winter could have a serious impact on the country’s water reserves.

“We’re going to keep working with farmers, water companies and environmental groups to minimize the impacts of drought, because this year is sign of things to come,” she said. “The climate is changing and these extreme weather events will become more common. How we deal with that problem will be one of the key parts of our Water White Paper, which will be published later this year.”

This may be a far cry from a declaration of war on other more water-abundant nations, but reaching this stage in some countries isn’t beyond the realms of imagination. Egypt and Ethiopia have been battling the issue for the share of the Nile’s water reserves, and Israel – already fighting Palestine for territory that includes precious water reserves – has started to charge the agricultural sector high rates for using the resource.

Even in the U.K., the armed forces are being prepared for potential conflicts over water.

Professor Wouters said that military plans are being prepared on a 30-year horizon, but that the water security topic had somewhat fallen off the table since the financial crisis. Portugal and Spain are facing serious water scarcity issues but the agricultural sector there is having to shout loudly for its voice to be heard above the noise of the countries’ current financial woes.

Maybe Israel’s entrepreneurial approach to the issue is the way forward. Nevertheless, the fact remains that water scarcity is now firmly on the agenda of the world’s governments, and isn’t going to vanish overnight.

Available at:<www.http://blogs.wsj.com/source/2011/06/29/water-wars-may-lie-ahead/>. Retrieved on: March 11, 2012.

According to Professor Wouters, in the text, paragraph 10,

 

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Water Wars May Lie Ahead

By Neena Rai

June 29, 2011, 9:20 AM GMT

There is a famous Chinese proverb that warns “not only can water float a boat, it can sink it also.”

And with global water shortages on the horizon, climate change supporters say an extreme response will be needed from international governments to stem the potential for conflict it will create around the world.

Professor Patricia Wouters at the IHP-HELP Centre for water law, policy and science at University of Dundee, said the world could face a future of “water wars” as deterioration in climatic patterns and global population growth leave people struggling to stake their claim to the natural resource.

The World Bank in a report said that 1.4 million [A] people could be facing water scarcity by 2025. But the Organization for Economic Co-operation and Development (OECD) forecast is even more gloomy. It estimates that 47% [B] of the world’s population could face water stress in the same period – equivalent to more than three billion people [C].

The issue isn’t restricted to countries that typically see temperatures soar, such as Cyprus, which in 2009 [D] was forced to import water in tankers and ration its use. Northern hemisphere nations like the U.K. are also finding themselves in the midst of a drought in some regions, forcing governments to start to take action. The U.K. government, for instance, plans to issue a Water White Paper this December that will focus on the future challenges facing the water industry and measures to increase protection of river flows during summer months.

Parts of the U.K. are currently marked as having drought status and other areas of the country are deemed to be at risk of drought. The U.K.’s Department for Environment Food and Rural Affairs held a second drought summit Monday, at which Secretary of State Caroline Spelman warned the prospect of a dry summer and dry winter could have a serious impact on the country’s water reserves.

“We’re going to keep working with farmers, water companies and environmental groups to minimize the impacts of drought, because this year is sign of things to come,” she said. “The climate is changing and these extreme weather events will become more common. How we deal with that problem will be one of the key parts of our Water White Paper, which will be published later this year.”

This may be a far cry from a declaration of war on other more water-abundant nations, but reaching this stage in some countries isn’t beyond the realms of imagination. Egypt and Ethiopia have been battling the issue for the share of the Nile’s water reserves, and Israel – already fighting Palestine for territory that includes precious water reserves – has started to charge the agricultural sector high rates for using the resource.

Even in the U.K., the armed forces are being prepared for potential conflicts over water.

Professor Wouters said that military plans are being prepared on a 30-year horizon [E], but that the water security topic had somewhat fallen off the table since the financial crisis. Portugal and Spain are facing serious water scarcity issues but the agricultural sector there is having to shout loudly for its voice to be heard above the noise of the countries’ current financial woes.

Maybe Israel’s entrepreneurial approach to the issue is the way forward. Nevertheless, the fact remains that water scarcity is now firmly on the agenda of the world’s governments, and isn’t going to vanish overnight.

Available at:<www.http://blogs.wsj.com/source/2011/06/29/water-wars-may-lie-ahead/>. Retrieved on: March 11, 2012.

In terms of numerical reference in the text,

 

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Water Wars May Lie Ahead

By Neena Rai

June 29, 2011, 9:20 AM GMT

There is a famous Chinese proverb that warns “not only can water float a boat, it can sink it also.”

And with global water shortages on the horizon, climate change supporters say an extreme response will be needed from international governments to stem [A] the potential for conflict it will create around the world.

Professor Patricia Wouters at the IHP-HELP Centre for water law, policy and science at University of Dundee, said the world could face a future of “water wars” as deterioration in climatic patterns and global population growth leave people struggling to stake their claim to the natural resource.

The World Bank in a report said that 1.4 million people could be facing water scarcity by 2025. But the Organization for Economic Co-operation and Development (OECD) forecast is even more gloomy [B]. It estimates that 47% of the world’s population could face water stress in the same period – equivalent to more than three billion people.

The issue isn’t restricted to countries that typically see temperatures soar [C], such as Cyprus, which in 2009 was forced to import water in tankers and ration its use. Northern hemisphere nations like the U.K. are also finding themselves in the midst of a drought in some regions, forcing governments to start to take action. The U.K. government, for instance, plans to issue a Water White Paper this December that will focus on the future challenges facing the water industry and measures to increase protection of river flows during summer months.

Parts of the U.K. are currently marked as having drought status and other areas of the country are deemed to be at risk of drought. The U.K.’s Department for Environment Food and Rural Affairs held a second drought summit Monday, at which Secretary of State Caroline Spelman warned the prospect [D] of a dry summer and dry winter could have a serious impact on the country’s water reserves.

“We’re going to keep working with farmers, water companies and environmental groups to minimize the impacts of drought, because this year is sign of things to come,” she said. “The climate is changing and these extreme weather events will become more common. How we deal with that problem will be one of the key parts of our Water White Paper, which will be published later this year.”

This may be a far cry from a declaration of war on other more water-abundant nations, but reaching this stage in some countries isn’t beyond the realms of imagination. Egypt and Ethiopia have been battling the issue for the share of the Nile’s water reserves, and Israel – already fighting Palestine for territory that includes precious water reserves – has started to charge the agricultural sector high rates for using the resource.

Even in the U.K., the armed forces are being prepared for potential conflicts over water.

Professor Wouters said that military plans are being prepared on a 30-year horizon, but that the water security topic had somewhat fallen off the table since the financial crisis. Portugal and Spain are facing serious water scarcity issues but the agricultural sector there is having to shout loudly for its voice to be heard above the noise of the countries’ current financial woes.

Maybe Israel’s entrepreneurial approach to the issue is the way forward. Nevertheless, the fact remains that water scarcity is now firmly on the agenda of the world’s governments, and isn’t going to vanish [E] overnight.

Available at:<www.http://blogs.wsj.com/source/2011/06/29/water-wars-may-lie-ahead/>. Retrieved on: March 11, 2012.

Based on the meanings in the text, the two items are synonymous in

 

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417586 Ano: 2012
Disciplina: Informática
Banca: CESGRANRIO
Orgão: CHESF
Na versão 2010 da suíte Microsoft Office, o aplicativo Excel
 

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Se hoje for uma segunda ou uma quarta-feira, Pedro terá aula de futebol ou natação. Quando Pedro tem aula de futebol ou natação, Jane o leva até a escolinha esportiva. Ao levar Pedro até a escolinha, Jane deixa de fazer o almoço e, se Jane não faz o almoço, Carlos não almoça em casa.

Considerando-se a sequência de implicações lógicas acima apresentadas textualmente, se Carlos almoçou em casa hoje, então hoje
 

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Considere um prédio que possui forma cúbica, representado pelo cubo ABCDEFGH, mostrado na figura.

Enunciado 417408-1
Um “elevador”, especificamente construído para tal prédio, se deslocará sobre as arestas, ao receber ordens dos seus passageiros, como: “para cima” e “para baixo” (na orientação indicada na figura), “para direita” e “para a esquerda” (na orientação dos passageiros do elevador que estão voltados de frente para o centro geométrico do cubo). Ao receber uma ordem, o elevador se deslocará sobre a aresta que viabiliza o sentido do movimento ordenado e parará ao alcançar um vértice, aguardando uma nova ordem.

Se o elevador estiver inicialmente sobre o vértice D e receber as ordens “para a direita”, “para cima”, “para a esquerda”, “para a esquerda”, “para baixo”, “para direita”, “para direita” e “para a direita”, ele não passará pelo vértice
 

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Em um jogo para dois jogadores, um deles escolhe uma senha secreta formada por cinco letras, distintas ou não, selecionadas entre M, N, P, Q, R, S e T. Tal senha deve rá ser descoberta pelo outro jogador, chamado oponente.
O oponente dispõe suas tentativas (senhas formadas por cinco letras) sobre o tabuleiro, e o jogador que criou a senha secreta deve informar se as letras da tentativa fazem parte da senha e se estão na posição certa através de pinos brancos e pretos. Uma letra que consta na tentativa do oponente recebe um pino branco quando ela pertence à senha secreta, mas sua posição não está correta; recebe um pino preto quando pertence à senha e sua posição está correta. Letras que não pertencem à senha não são qualificadas por pinos. Cada letra da senha secreta que constar na tentativa do oponente deverá ser qualificada por apenas um pino, branco ou preto. O exemplo da figura mostra uma tentativa do oponente que obteve como informação 1 pino preto (Letra S na posição correta) e 3 pinos brancos (Letras S, N e M em posições erradas).

Enunciado 417405-1

Se a senha secreta for MNMMP e o oponente tentar uma senha usando essas mesmas 5 letras, mas não necessariamente na mesma ordem, qual será o maior número de pinos brancos que ele poderá receber na informação (resposta)?
 

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Water Wars May Lie Ahead

By Neena Rai

June 29, 2011, 9:20 AM GMT

There is a famous Chinese proverb that warns “not only can water float a boat, it can sink it also.”

And with global water shortages on the horizon, climate change supporters say an extreme response will be needed from international governments to stem the potential for conflict it will create around the world.

Professor Patricia Wouters at the IHP-HELP Centre for water law, policy and science at University of Dundee, said the world could face a future of “water wars” as deterioration in climatic patterns and global population growth leave people struggling to stake their claim to the natural resource.

The World Bank in a report said that 1.4 million people could be facing water scarcity by 2025. But the Organization for Economic Co-operation and Development (OECD) forecast is even more gloomy. It estimates that 47% of the world’s population could face water stress in the same period – equivalent to more than three billion people.

The issue isn’t restricted to countries that typically see temperatures soar, such as Cyprus, which in 2009 was forced to import water in tankers and ration its use. Northern hemisphere nations like the U.K. are also finding themselves in the midst of a drought in some regions, forcing governments to start to take action. The U.K. government, for instance, plans to issue a Water White Paper this December that will focus on the future challenges facing the water industry and measures to increase protection of river flows during summer months.

Parts of the U.K. are currently marked as having drought status and other areas of the country are deemed to be at risk of drought. The U.K.’s Department for Environment Food and Rural Affairs held a second drought summit Monday, at which Secretary of State Caroline Spelman warned the prospect of a dry summer and dry winter could have a serious impact on the country’s water reserves.

“We’re going to keep working with farmers, water companies and environmental groups to minimize the impacts of drought, because this year is sign of things to come,” she said. “The climate is changing and these extreme weather events will become more common. How we deal with that problem will be one of the key parts of our Water White Paper, which will be published later this year.”

This may be a far cry from a declaration of war on other more water-abundant nations, but reaching this stage in some countries isn’t beyond the realms of imagination. Egypt and Ethiopia have been battling the issue for the share of the Nile’s water reserves, and Israel – already fighting Palestine for territory that includes precious water reserves – has started to charge the agricultural sector high rates for using the resource.

Even in the U.K., the armed forces are being prepared for potential conflicts over water.

Professor Wouters said that military plans are being prepared on a 30-year horizon, but that the water security topic had somewhat fallen off the table since the financial crisis. Portugal and Spain are facing serious water scarcity issues but the agricultural sector there is having to shout loudly for its voice to be heard above the noise of the countries’ current financial woes.

Maybe Israel’s entrepreneurial approach to the issue is the way forward. Nevertheless, the fact remains that water scarcity is now firmly on the agenda of the world’s governments, and isn’t going to vanish overnight.

Available at:<www.http://blogs.wsj.com/source/2011/06/29/water-wars-may-lie-ahead/>. Retrieved on: March 11, 2012.

The author’s main purpose in the text is to

 

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