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Os satélites artificiais, em geral, utilizam a energia solar para recarregar suas baterias. Porém, a energia solar também produz aquecimento no satélite.
Assinale a alternativa que completa corretamente a frase: “Considerando um satélite em órbita, acima da atmosfera, o Sol aquece este satélite por meio do processo de transmissão de calor chamado de .”
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Observe:
Os policiais investigaram uma tentativa de sequestro e, antes que ocorresse o fato, não se demoraram em questões burocráticas: anteciparam a prisão dos suspeitos.
Substituindo-se os verbos destacados, respectivamente, por supor, advir e deter, e mantendo o mesmo tempo e modo verbais, obtêm-se, corretamente,
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Glee: Comedy musical. 9 p.m. Wednesdays on Fox Created by Ryan Murphy, the series is an irreverent, upbeat, non-cynical take on the cliché-ridden troupe of high school life, as seen through the eyes of cheerleaders, jocks, quirky and underpaid teachers. Will (Matthew Morrison) is an idealistic teacher at McKinley High School gets the chance to take over the oppressed Glee Club. What he’s got going against him is that everyone thinks Glee Club is weak. And worse, McKinley High dotes on its “Cheerios” - the world-beating cheerleading squad coached by Sue Sylvester (Jane Lynch), the fearful, sweat-suit-wearing teacher. Will’s job will be to make Glee Club cool again. It’s not going to be easy, because he’s got a ragtag group: Artie (Kevin McHale ), ’s in a wheelchair; Mercedes (Amber Riley), the plus-size diva; Tina (Jenna Ushkowitz), the rebellious stutterer; and Kurt (Chris Colfer), the boy diva. Will also has got one standout star, Rachel (Lea Michele ), the egotistical girl with the note-perfect voice, and one diamond in the rough, Finn (Cory Monteith), the quarterback with good looks and a real passion for show choir.
(Adapted from www.seriesreviews.com)
GLOSSARY
Up-beat – alegre
Cliché-ridden troupe – grupo de cantores cheios de esteriótipo
Jocks – “marombeiros” (jovens que gostam de malhar)
Quirky – estranho no comportamento
To dote on – amar
Squad – esquadrão
Ragtag – grupo de pessoas não muito respeitado
Stutterer – gago
Standout star – estrela exibicionista
Egotistical – pessoa metida
Quarterback – uma posição específica de um jogador de futebol americano
If Mercedes (Amber Riley) is plus-size, it means that she is .
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Se A = tg 120° e B = tg 240°, então
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Sejam as funções logarítmicas !$ f(c) = \log_a x !$ e !$ g(x) = \log_b x !$. Se f(x) é crescente e g(x) é decrescente, então
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The disappearing generation gap
A recent study has produced an interesting picture of today’s parent – child relationships. It has revealed that many of today’s parents and children dress the same, listen to the same music, have similar interests and attitudes and are in fact best friends. And there is now a much greater tolerance and understanding between generations than ever before.
Although the generation gap hasn’t disappeared completely, it is getting smaller all the time. Today it is very common for parents and their children to share their clothes, make-up, music and other possessions. Conversations that were unthinkable a generation ago, on subjects such as relationships, sex and drugs are now comfortable and common. And many parents and children regularly spend much of their leisure time together.
(Family Circle Magazine)
GLOSSARY
generation gap – diferença de gerações
According to the text,
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Leia:
Faça piadas velhas para pessoas novas e piadas novas para pessoas velhas. (Jô Soares)
Considerando o texto acima, assinale a alternativa incorreta.
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O circuito abaixo representa um aquecedor elétrico com cinco posições de regulagem de resistência, ligado a uma fonte de alimentação ideal cuja d.d.p. tem valor igual a V (em volts). Na posição indicada no circuito, a resistência elétrica do aquecedor tem valor igual a R (em ohms) e o aquecedor consome a potência de intensidade “P” (em watts) da fonte de alimentação. Assinale a alternativa que indica a posição na qual o seletor deve ser ligado para que o aquecedor consuma o dobro da potência, ou seja, “2P”.
Obs.: No aquecedor, as posições R/4, R/2, R, 2R e 4R definem o valor da resistência elétrica (em ohms) que está ligado ao circuito.
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Aviation &Environment
In the early days of the jet age, speed and luxury were the drivers of intercontinental travel.
Today, our engines are at the cutting edge of efficiency. Our aircraft are more aerodynamic and lighter than ever before. Moreover, we are making huge improvements in our air traffic control efficiency, how we fly our aircraft and in developing more environmentally-friendly operations at airports. But we are still using the same fuel. That’s about to change. The world is turning to governments and business to reduce the human impact on climate change. And the aviation is about to embark on a new journey.
Sustainable biofuels are crucial to providing a cleaner source of fuel to power the world’s fleet of aircraft and help the billions of people who travel by air each year to lower the impact of their journey on our planet.
(Taken from www.enviro.aero)
GLOSSARY
Cutting edge – o que é de mais avançado
Fleet – frota
In “… we are making huge improvements in developing more environmentally-friendly operations at airports.” we can conclude that the aviation industry, except
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NYC skyscrapers dim lights to help migratory birds
A growing number of New York skyscrapers are switching off their lights to help reduce the number of birds hitting the high-rise buildings.
The “lights out” project – organised by NYC Audubon – runs from September 1st to November 1st, when migratory birds are expected to have completed their autumn migrations.
An estimated 90,000 birds each year are killed in the city as a result of striking glass-fronted buildings. Organisers of the annual initiative say the bright lights disorientate the migrating birds. The birds are reluctant to fly from a well-lit area to a dark one. Confused by artificial lights, they circle repeatedly within the light field, colliding with the buildings.
NYC Audubon – a group that works to protect wild birds and their habitats within the city – is calling on owners and tenants in high-rise buildings to switch off lights on unoccupied floors or unused space between midnight and dawn.
(by Mark Kinver Science , BBC News)
“switch off”, can be replaced by
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