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  • 58.062 questões
  • 160 instituições
  • 23 anos de prova

Resultados: 58.062 questões

Página 135 de 2.904

  • Ciências da Natureza

    Física

    No ano de 2017 uma reportagem jornalística destacou que já foram instaladas mais de 500 torres de produção de energia elétrica, a partir da energia eólica (aerogeradores), com mais de 80 metros na Chapada do Araripe que engloba os estados do Piauí, Pernambuco e Ceará (beneficiando agricultores da região com o aluguel de terrenos e provocando alterações do ambiente local). Em relação à produção da energia elétrica a partir da energia eólica no Brasil e particularmente no estado do Ceará aponte a alternativa incorreta.
    Escolha uma alternativa para a questão 0d6b1b44-c9
  • Linguagens

    Português

    Texto 2


    Conexão

    Era uma palavra mais bonita

    Antes de existir o wi-fi.

    Zack Magiezi

    Disponível em https://es.pinterest.com/pin/conexo-- 82472236917172490/. Acesso em: 24 set. 2024.
    Está correto afirmar que, no poema de Zack Magiezi, a palavra
    Escolha uma alternativa para a questão 0d6be71b-df
  • Linguagens

    Inglês

    TEXTO PARA A QUESTÃO

        Scientists have long touted DNA’s potential as an ideal storage medium; it’s dense, easy to replicate, and stable over millennia. But in order to replace existing silicon‐chip or magnetic‐tape storage technologies, DNA will have to get a lot cheaper to predictably read, write, and package.
        That’s where scientists like Hyunjun Park come in. He and the other cofounders of Catalog, an MIT DNA‐storage spinoff emerging out of stealth on Tuesday, are building a machine that will write a terabyte of data a day, using 500 trillion molecules of DNA.  
        If successful, DNA storage could be the answer to a uniquely 21st‐century problem: information overload. Five years ago humans had produced 4.4 zettabytes of data; that's set to explode to 160 zettabytes (each year!) by 2025. Current infrastructure can handle only a fraction of the coming data deluge, which is expected to consume all the world's microchip‐grade silicon by 2040.
        “Today’s technology is already close to the physical limits of scaling,” says Victor Zhirnov, chief scientist of the Semiconductor Research Corporation. “DNA has an information‐storage density several orders of magnitude higher than any other known storage technology.”
        How dense exactly? Imagine formatting every movie ever made into DNA; it would be smaller than the size of a sugar cube. And it would last for 10,000 years.
    Wired, June, 2018. Disponível em https://www.wired.com/. Adaptado.
    Afirma‐se no texto que, no futuro, a tecnologia de gravação em moléculas de DNA
    Escolha uma alternativa para a questão 0d6c4f98-99
  • Ciências Humanas

    Geografia

    Analise a Tabela abaixo, correlacionando-a com as proposições apresentadas a seguir.


    Imagem da questão de Geografia, UESPI 2010, Conceitos Demográficos

    Escolha uma alternativa para a questão 0d6c64cb-b5
  • Linguagens

    Português

    Texto 2


    Conexão

    Era uma palavra mais bonita

    Antes de existir o wi-fi.

    Zack Magiezi

    Disponível em https://es.pinterest.com/pin/conexo-- 82472236917172490/. Acesso em: 24 set. 2024.
    Em “Era uma palavra mais bonita...”, o verbo está
    Escolha uma alternativa para a questão 0d6e83f2-df
  • Ciências da Natureza

    Química

    DADOS QUE PODEM SER USADOS NESTA PROVA:


    Imagem da questão de Química, UECE 2016, Teoria Atômica: átomos e sua estrutura - número atômico, número de massa, isótopos, massa atômica

    Sobre o elemento químico hidrogênio, assinale a afirmação FALSA.
    Escolha uma alternativa para a questão 0d6f3fa6-b8
  • Ciências Humanas

    Geografia

    Analise as Pirâmides Etárias a seguir, correlacionando-as com as proposições apresentadas a seguir e assinale a opção correta.

    Imagem da questão de Geografia, UESPI 2010, Pirâmide etária

    Escolha uma alternativa para a questão 0d6f8ca6-b5
  • Linguagens

    Inglês

    TEXTO PARA A QUESTÃO

        Scientists have long touted DNA’s potential as an ideal storage medium; it’s dense, easy to replicate, and stable over millennia. But in order to replace existing silicon‐chip or magnetic‐tape storage technologies, DNA will have to get a lot cheaper to predictably read, write, and package.
        That’s where scientists like Hyunjun Park come in. He and the other cofounders of Catalog, an MIT DNA‐storage spinoff emerging out of stealth on Tuesday, are building a machine that will write a terabyte of data a day, using 500 trillion molecules of DNA.  
        If successful, DNA storage could be the answer to a uniquely 21st‐century problem: information overload. Five years ago humans had produced 4.4 zettabytes of data; that's set to explode to 160 zettabytes (each year!) by 2025. Current infrastructure can handle only a fraction of the coming data deluge, which is expected to consume all the world's microchip‐grade silicon by 2040.
        “Today’s technology is already close to the physical limits of scaling,” says Victor Zhirnov, chief scientist of the Semiconductor Research Corporation. “DNA has an information‐storage density several orders of magnitude higher than any other known storage technology.”
        How dense exactly? Imagine formatting every movie ever made into DNA; it would be smaller than the size of a sugar cube. And it would last for 10,000 years.
    Wired, June, 2018. Disponível em https://www.wired.com/. Adaptado.
    Conforme o texto, cientistas preveem que, em pouco mais de 20 anos,
    Escolha uma alternativa para a questão 0d7020e5-99
  • Ciências da Natureza

    Química

    DADOS QUE PODEM SER USADOS NESTA PROVA:


    Imagem da questão de Química, UECE 2016, Eletroquímica: Oxirredução, Potenciais Padrão de Redução, Pilha, Eletrólise e Leis de Faraday.

    Uma pilha é formada com eletrodos de alumínio e ouro que apresentam os potenciais de redução, respectivamente, -1,66 volts e 1,50 volts. Após analisar as características dessa pilha, pode-se afirmar corretamente que
    Escolha uma alternativa para a questão 0d7228f2-b8
  • Ciências Humanas

    Geografia

    Os setores produtivos de um país são formados por um conjunto de atividades econômicas. Um exemplo de setor produtivo é o Secundário, constituído pelas seguintes atividades:
    Escolha uma alternativa para a questão 0d72bee6-b5
  • Ciências Humanas

    História

    O tema do Coronelismo é retratado em obras de escritores como Graciliano Ramos, José Lins do Rego e Jorge Amado, que procuraram demonstrar a dominação política do país pela oligarquia cafeeira. Esta era composta por grandes proprietários de terras que exerciam o monopólio do poder local. Os eleitores, ao votar de forma aberta, por meio do chamado “voto de cabresto”, eram obrigados a eleger os candidatos indicados pelo “coronel” e seus jagunços.

    Esta realidade é característica
    Escolha uma alternativa para a questão 0d73d799-27
  • Linguagens

    Inglês

    TEXT

        A library tradition is being refashioned to emphasize early literacy and better prepare young children for school, and drawing many new fans in the process.

        Among parents of the under-5 set, spots for story time have become as coveted as seats for a hot Broadway show like “Hamilton.” Lines stretch down the block at some branches, with tickets given out on a first-come-first-served basis because there is not enough room to accommodate all of the children who show up.

        Workers at the 67th Street Library on the Upper East Side of Manhattan turn away at least 10 people from every reading. They have been so overwhelmed by the rush at story time — held in the branch’s largest room, on the third floor — that once the space is full, they close the door and shut down the elevator. “It is so crowded and so popular, it’s insane,” Jacqueline Schector, a librarian, said.

        Story time is drawing capacity crowds at public libraries across New York and across the country at a time when, more than ever, educators are emphasizing the importance of early literacy in preparing children for school and for developing critical thinking skills. The demand crosses economic lines, with parents at all income levels vying to get in.

        Many libraries have refashioned the traditional readings to include enrichment activities such as counting numbers and naming colors, as well as music and dance. And many parents have made story time a fixture in their family routines alongside school pickups and playground outings — and, for those who employ nannies, a nonnegotiable requirement of the job.

        In New York, demand for story time has surged across the city’s three library systems — the New York Public Library, the Brooklyn Public Library, and the Queens Library — and has posed logistical challenges for some branches, particularly those in small or cramped buildings. Citywide, story time attendance rose to 510,367 people in fiscal year 2015, up nearly 28 percent from 399,751 in fiscal 2013.

        “The secret’s out,” said Lucy Yates, 44, an opera coach with two sons who goes to story time at the Fort Washington Library every week.

        Stroller-pushing parents and nannies begin to line up for story time outside some branches an hour before doors open. To prevent overcrowding, tickets are given out at the New Amsterdam and Webster branches, both in Manhattan, the Parkchester branch in the Bronx, and a half-dozen branches in Brooklyn, including in Park Slope, Kensington and Bay Ridge.

        The 67th Street branch keeps adding story times — there are now six a week — and holds sessions outdoors in the summer, when crowds can swell to 200 people.

        In Queens, 41 library branches are scheduled to add weekend hours this month, and many will undoubtedly include weekend story times. As Joanne King, a spokeswoman for the library explained, parents have been begging for them and “every story time is full, every time we have one.”

        Long a library staple, story time has typically been an informal reading to a small group of boys and girls sitting in a circle. Today’s story times involve carefully planned lessons by specially trained librarians that emphasize education as much as entertainment, and often include suggestions for parents and caregivers about how to reinforce what children have learned, library officials said.

        Libraries around the country have expanded story time and other children’s programs in recent years, attracting a new generation of patrons in an age when online offerings sometimes make trips to the book stacks unnecessary. Sari Feldman, president of the American Library Association, said such early-literacy efforts are part of a larger transformation libraries are undergoing to become active learning centers for their communities by offering services like classes in English as a second language, computer skills and career counseling.

        Ms. Feldman said the increased demand for story time was a product, in part, of more than a decade of work by the library association and others to encourage libraries to play a larger role in preparing young children for school. In 2004, as part of that effort, the association developed a curriculum, “Every Child Ready to Read,” that she said is now used by thousands of libraries.

        The New York Public Library is adding 45 children’s librarians to support story time and other programs, some of which are run in partnership with the city government. It has also designated 20 of its 88 neighborhood branches, including the Fort Washington Library, as “enhanced literary sites.” As such, they will double their story time sessions, to an average of four a week, and distribute 15,000 “family literacy kits” that include a book and a schedule of story times.

        “It is clear that reading and being exposed to books early in life are critical factors in student success,” Anthony W. Marx, president of the New York Public Library, said. “The library is playing an increasingly important role in strengthening early literacy in this city, expanding efforts to bring reading to children and their families through quality, free story times, curated literacy programs, after-school programs and more.”

        For its part, the Queens Library plans to expand a “Kick Off to Kindergarten” program that attracted more than 180 families for a series of workshops last year. Library officials said that more than three-quarters of the children who enrolled, many of whom spoke a language other than English at home, developed measurable classroom skills.

    From: www.nytimes.com/2015/11/02

    Many people attending this story time in American libraries
    Escolha uma alternativa para a questão 0d745e05-91
  • Ciências da Natureza

    Química

    DADOS QUE PODEM SER USADOS NESTA PROVA:


    Imagem da questão de Química, UECE 2016, Propriedades Físicas dos Compostos Orgânicos: Polaridade das Ligações e Moléculas, Forças Intermoleculares, Ponto de Fusão e Ponto de Ebulição, Solubilização das Substâncias Orgânicas.

    O ponto de ebulição do álcool etílico é 78,15 °C e o do éter metílico é -24,8 °C. Isso ocorre quando as forças intermoleculares do álcool etílico são maiores porque
    Escolha uma alternativa para a questão 0d75b451-b8
  • Linguagens

    Inglês

    Harlem

    What happens to a dream deferred?

    Does it dry up
    like a raisin in the sun?
    Or fester like a sore —
    And then run?
    Does it stink like rotten meat?
    Or crust and sugar over —
    like a syrupy sweet?

    Maybe it just sags
    like a heavy load.

    Or does it explode?

    Langston Hughes, Selected Poems of Langston Hughes (1990).
    Disponível em http://www.poetryfoundation.org/.

    As tentativas de resposta do poeta à pergunta “What happens to a dream deferred?” evocam imagens de
    Escolha uma alternativa para a questão 0d75e823-99
  • Ciências da Natureza

    Biologia

    Hormônios são substâncias secretadas por glândulas que atuam em locais específicos. Dentre as opções a seguir, assinale aquela que NÃO É um exemplo dessa substância:
    Escolha uma alternativa para a questão 0d7624c2-df
  • O MERCOSUL, bloco econômico regional formado por países da América do Sul, atualmente, se encontra na fase de Mercado Comum. Nesta fase, o Bloco apresenta as seguintes características:
    Escolha uma alternativa para a questão 0d776b0b-b5