Foram encontradas 100 questões.
Na figura, !$ \overline {AB} \subset r !$.Se r tem equação x – y – 1 = 0, e ABCD é um quadrado, então o lado de ABCD mede
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Se a de um cilindro for igual à (ao) , ele é denominado cilindro equilátero.
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Aviation &Environment
In the early days of the jet age, speed and luxury were the drivers of intercontinental travel.
Today, our engines are at the cutting edge of efficiency. Our aircraft are more aerodynamic and lighter than ever before. Moreover, we are making huge improvements in our air traffic control efficiency, how we fly our aircraft and in developing more environmentally-friendly operations at airports. But we are still using the same fuel. That’s about to change. The world is turning to governments and business to reduce the human impact on climate change. And the aviation is about to embark on a new journey.
Sustainable biofuels are crucial to providing a cleaner source of fuel to power the world’s fleet of aircraft and help the billions of people who travel by air each year to lower the impact of their journey on our planet.
(Taken from www.enviro.aero)
GLOSSARY
Cutting edge – o que é de mais avançado
Fleet – frota
“crucial”, in bold type in the extract, is closest in meaning to all alternatives, except
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Assinale a alternativa que contém uma metonímia.
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Dados os pontos B(1, 2) e C(0, 1) e uma circunferência λ de equação !$ x^2 + y^2 – 3x – 4 = 0 !$, é correto afirmar que
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Crash Landing Aires Boeing 737-800 San Andres Island, Columbia.
August 16, 2010 by Marcel Van Leeuwen
At least one person died and five more are injured after a Boeing 737 crashed onto the runway at 1:49 a.m. local time today on San Andres Island. The jet, carrying 131 people, broke into three pieces. The Aires flight departed Bogoto around midnight and, according to Colombian Air Force Colonel David Barrero, officials are investigating reports - the aircraft experienced a lightning strike. San Andres Island’s airport has closed its 7,545-foot runway until the wreckage can be removed. Barrero commented that the skill of the pilot kept the airliner from colliding with the airport. The landing occurred during a storm.
(Taken from Wikinews.org)
GLOSSARY
Crewmembers – membros da tripulação
Wreckage – destroços
Select the alternative in which the conditional sentence has the same idea as in “…the skill of the pilot kept the airliner from colliding with the airport.”.
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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
“regularly”, can be replaced by
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Um disco de massa igual a 2,0 kg está em movimento retilíneo sobre uma superfície horizontal com velocidade igual a 8,0 m/s, quando sua velocidade gradativamente reduz para 4,0 m/s. Determine o trabalho, em J, realizado pela força resistente nesta situação.
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Em hidrostática, pressão é uma grandeza física
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Se sen y = m e cos y = n, o valor de !$ \large sec \ y \over cossec \ y !$ é
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Cadernos
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