Uma partícula descreve um movimento cujas coordenadas são dadas pelas seguintes equações:

!$ X (t) = X_0 \cos (w t ) !$ e !$ Y(t) = Y_0 \sin (w t + \pi /6) !$, em que !$ w !$, !$ X_0 !$ e !$ Y_0 !$ são constantes positivas. A trajetória da partícula é

Um bloco com massa de 0,20 kg, inicialmente em repouso, é derrubado de uma altura de h= 1,20 m sobre uma mola cuja constante de força é k = 19,6 N/m. Desprezando a massa da mola, a distância máxima que a mola será comprimida é

Um objeto linear de altura h está assentado perpendicularmente no eixo principal de um espelho esférico, a 15 cm de seu vértice. A imagem produzida é direita e tem altura de h/5. Este espelho é

Leia o texto abaixo e as afirmações que se seguem

Que falta nesta cidade? Verdade.

Que mais por sua desonra? Honra.

Falta mais que se lhe ponha? Vergonha.

O demo a viver se exponha,

Por mais que a fama a exalta,

Numa cidade onde falta

Verdade, honra, vergonha.

Matos, G. de. Os melhores poemas de Gregório de

Matos Guerra. Rio de Janeiro: Record, 1990.

I – mantém uma estrutura formal e rítmica regular.

II – enfatiza as idéias opostas.

III – emprega a ordem direta.

IV – refere-se à cidade de São Paulo.

V – emprega a gradação.

Então, pode-se dizer que são verdadeiras

Podemos afirmar que na obra D. Casmurro, Machado de Assis

A questão refere-se ao texto abaixo, extraído da introdução de um livro.

“Curiosity killed a cat.” That cautionary cliché has passed through my mind several times in the last few years, once or twice even’ giving me pause. For it was curiosity that first tempted me to investigate computer graphics. Nothing in my training or professional background prepared me for something as foreign as a computer paint system. But it sounded intriguing, so I decided to see one firsthand. (... )

While touring the Computer Graphics Lab at the New York Institute of Technology in Old Westbury, New York – a research and development facility – I was invited to draw on a paint system. I picked up the stylus and drew a simple sketch of a horse. It was surprisingly easy and felt very natural – but it wasn’t unforgettable. What happened next was that the demonstrator reached out to the keyboard and hit a couple of buttons; instantly my simple drawing became a brilliant kaleidoscopic chain of moving colors. It was as if my horse had suddenly come alive.

I was thrilled – and hooked. Since that time, in professional workshops at colleges, or with clients, I have seen my own initial reaction repeated in others, an experience akin to magic.

Now, six years later, wiser and more experienced, my enthusiasm is still intact, and I am more deeply involved than ever in this art form. Mastering this medium is, as with most complex techniques, an ongoing process, in which each new plateau reveals another height to be challenged. (... )

What is needed is an adventurous, risk-taking approach – a curiosity about the new, much of which lies, unknown and unseen, around a dozen corners. Yes, curiosity – that word again. Of course, today we don’t take those old sayings seriously. Anyhow, there’s another old adage about cats, reassuring us that after all “a cat has nine lives.” Well, so do artists.

Don Bolognese

Watson – Guptill Publications 1988. (adapted)

p. 8/9

A questão refere-se a texto cujo vocabulário principal se segue:

• mind = mente

• several times = diversas vezes

• in the last few years = nos últimos anos

• once or twice = uma ou duas vezes

• even = até mesmo

• for = porque

• to tempt = incitar

• firsthand = em primeira mão

• while = enquanto

• to tour = passar por

• development = desenvolvimento

• facility = instalações

• to be invited to = ser convidado a

• to draw = desenhar

• to pick up = aprender gradualmente

• sketch = esboço

• unforgettable = inesquecível

• to happen= acontecer

• to reach out = alcançar

• keyboard = teclado

• to hit = teclar

• a couple of buttons = algumas teclas

• chain = cadeia

• to be thrilled = ficar extasiado

• to be hooked = ficar viciado

• colleges = faculdades

• own = próprio

• akin to = semelhante a

• wiser = mais sábio

• deeply = profundamente

• more than ever = mais que nunca

• to master = dominar

• ongoing = contínuo

• each = cada

• plateau = passo, degrau

• height = altura

• to challenge = desafiar

• risk-taking = arriscado

• approach = abordagem

• to lie = estar

• unknown = desconhecido

• unseen = oculto

• dozen = dúzia

• again = novamente

• of course = é claro

• old sayings = velhos ditados

• to take seriously = levar a sério

• anyhow = de qualquer modo

• adage = ditado

• to reassure = reforçar, encorajar

• after all = afinal de contas

• well = bem

Considere as afirmações abaixo:

I. O provérbio sobre a curiosidade do gato remete à própria curiosidade do autor.

II. O autor demonstra seu afeto por gatos ao utilizar os clichês no início e no final do texto.

III.Em sua primeira experiência com computação gráfica, o autor fez o esboço de um cavalo.

Está(ão) condizente(s) com o texto:

A questão refere-se ao texto abaixo:

(…)

Ever since Dad had returned from his life at sea he had been interested in robots. Maybe that in itself wasn’t so strange, but with Dad it didn’t end there. He was convinced that one day science would be able to create artificial people. By this, he didn’t just mean those dumb metal robots with red and green flashing lights and hollow voices. Oh no, Dad believed that science would one day be able to create real thinking human beings, like us. And there was more – he also believed that, fundamentally, human beings are artificial objects. (…) “Just imagine if all this suddenly came alive, Hans Thomas,” he said. “imagine if these Lego figures suddenly began to toddle around among the plastic houses. What would we do then?” (…) “Basically, we ourselves are such Lego figures.”

“Just imagine if all this suddenly came alive, Hans Thomas,” he said. “imagine if these Lego figures suddenly began to toddle around among the plastic houses. What would we do then?” (…) “Basically, we ourselves are such Lego figures.”

The Solitaire Mystery – J. Gaardner – p.8

A questão refere-se ao texto cujo vocabulário principal se segue:

• ever since = desde

• Dad = pai

• maybe = talvez

• in itself = em si mesmo

• to end = terminar

• able = capaz

• by this = com isto

• to mean = querer dizer

• dumb = tolos

• hollow = oco, metalizado, vazio, irreal

• voices = vozes

• to flash = piscar (luz)

• to believe = acreditar

• human beings = seres humanos

• like us = como nós

• suddenly = de repente

• to come alive = tornar-se realidade

• to toddle = caminhar (rastejar) como criança

Assinale a alternativa que melhor expressa o significado da frase “Ever since Dad had returned from his life at sea he had been interested in robots.”

A questão refere-se ao texto abaixo, extraído do artigo “Dinosaur Docudrama Blends Fact, Fantasy”

TV CRITIQUE

Amid the majestic sequoias of what could be a state park in Northern California, the silence is broken by a guttural bellow. An enormous beast plods across the television screen. She kicks out a shallow nest and begins to lay her eggs. Each white egg, the size of a soccer ball, slides gently down an ovipositor and comes to rest in the ground. (... )

It looks and sounds just like a wildlife documentary - so much so that, if you watch long enough, you almost forget that the animals it shows have been extinct for more than 65 million years. But this is Walking With Dinosaurs, a sometimes stunning dinoextravaganza that uses computer animation and detailed puppets to resurrect the creatures and place them in real landscapes. When the $10 million program aired in the United Kingdom last fall, 17 million people - almost a third of the population - tuned in to the six weekly installments making it the BBC’s most watched science program ever and one of its top 20 programs of all time. It also stirred up a controversy.

Some researchers were unstinting in their praise: “This is going to stand out as one of the best dinosaur shows ever done and certainly the most novel one,” says Tom Hoitz, a vertebrate paleontologist at the University of Maryland, College Park, who consulted with the BBC on the project. But others cringed at the way it blurred fact and fiction. Most of the egg-laying sequence, for example, is screenwriter’s fantasy: There is no scientific evidence that the giant dinosaur Diplodocus had an ovipositor or abandoned its young. “Some of the arguments were just so far-fetched, so ridiculous,” says Norman MacLeod, an invertebrate paleontologist at the Natural History Museum in London. “[ was embarrassed for the profession.” The British media debated whether docudrama was a suitable way to convey science to the public. Would TV viewers be stimulated, misled, or just confused? On 16 April millions more will get the chance to make up their own minds as the Discovery Channel airs a revised 3-hour version of the show in North and South America. (... )

SCIENCE

VOL 288 7 April 2000

A questão refere-se ao texto cujo vocabulário principal se segue:

• amid = entre

• the silence is broken = o silêncio é rompido

• bellow = grito, berro

• beast = animal

• to plod = caminhar lenta e penosamente

• screen = tela

• to kick out = chutar longe, expulsar

• shallow = baixo, raso

• nest = ninho

• to lay eggs = botar ovos

• size = tamanho

• soccer ball = bola de futebol

• to slide = deslizar

• to rest = descansar

• ground = chão

• to look = parecer

• to sound = soar

• wildlife = selvagem

• to watch = assistir

• long enough = o tempo suficiente

• almost = quase

• to forget = esquecer

• to show = mostrar

• stunning = surpreendente

• puppets = marionetes, bonecos

• to ressurect = ressuscitar

• to place = colocar

• landscapes = paisagens

• to air = ir ao ar

• fall = outono

• to tune in = sintonizar

• installments = capítulos, episódios

• of all time = de todos os tempos

• to stir up = provocar, suscitar

• researchers = pesquisadores

• to be unstinting = ser esfuziante

• praise = elogio

• to stand out = destacar-se

• novel = atual

• to cringe = encolher-se

• to blur = confundir

• screenwriter = roteirista

• young = filhote

• far-fetched = artificial, forçado

• embarrassed = constrangido

• whether = se

• suitable = apropriado

• way = modo, maneira

• to convey = transmitir

• TV viewers = telespectadores

• misled = desorientados, enganados

• to make up one’s mind = decidir-se

Considere as afirmações abaixo:

I. O primeiro parágrafo do texto descreve uma cena do documentário “Caminhando com Dinossauros”, em que um dinossauro prepara seu ninho e põe ovos.

II. O documentário, dividido em seis episódios semanais, estreou na Inglaterra no outono de 1999.

III. Em abril deste ano, o canal de televisão Discovery transmitiria para os Estados Unidos e para a América do Sul o documentário britânico na íntegra.

Está(ão) condizente(s) com o texto:

A questão refere-se ao texto abaixo, extraído da introdução de um livro.

“Curiosity killed a cat.” That cautionary cliché has passed through my mind several times in the last few years, once or twice even’ giving me pause. For it was curiosity that first tempted me to investigate computer graphics. Nothing in my training or professional background prepared me for something as foreign as a computer paint system. But it sounded intriguing, so I decided to see one firsthand. (... )

While touring the Computer Graphics Lab at the New York Institute of Technology in Old Westbury, New York – a research and development facility – I was invited to draw on a paint system. I picked up the stylus and drew a simple sketch of a horse. It was surprisingly easy and felt very natural – but it wasn’t unforgettable. What happened next was that the demonstrator reached out to the keyboard and hit a couple of buttons; instantly my simple drawing became a brilliant kaleidoscopic chain of moving colors. It was as if my horse had suddenly come alive.

I was thrilled – and hooked. Since that time, in professional workshops at colleges, or with clients, I have seen my own initial reaction repeated in others, an experience akin to magic.

Now, six years later, wiser and more experienced, my enthusiasm is still intact, and I am more deeply involved than ever in this art form. Mastering this medium is, as with most complex techniques, an ongoing process, in which each new plateau reveals another height to be challenged. (... )

What is needed is an adventurous, risk-taking approach – a curiosity about the new, much of which lies, unknown and unseen, around a dozen corners. Yes, curiosity – that word again. Of course, today we don’t take those old sayings seriously. Anyhow, there’s another old adage about cats, reassuring us that after all “a cat has nine lives.” Well, so do artists.

Don Bolognese

Watson – Guptill Publications 1988. (adapted)

p. 8/9

A questão refere-se a texto cujo vocabulário principal se segue:

• mind = mente

• several times = diversas vezes

• in the last few years = nos últimos anos

• once or twice = uma ou duas vezes

• even = até mesmo

• for = porque

• to tempt = incitar

• firsthand = em primeira mão

• while = enquanto

• to tour = passar por

• development = desenvolvimento

• facility = instalações

• to be invited to = ser convidado a

• to draw = desenhar

• to pick up = aprender gradualmente

• sketch = esboço

• unforgettable = inesquecível

• to happen= acontecer

• to reach out = alcançar

• keyboard = teclado

• to hit = teclar

• a couple of buttons = algumas teclas

• chain = cadeia

• to be thrilled = ficar extasiado

• to be hooked = ficar viciado

• colleges = faculdades

• own = próprio

• akin to = semelhante a

• wiser = mais sábio

• deeply = profundamente

• more than ever = mais que nunca

• to master = dominar

• ongoing = contínuo

• each = cada

• plateau = passo, degrau

• height = altura

• to challenge = desafiar

• risk-taking = arriscado

• approach = abordagem

• to lie = estar

• unknown = desconhecido

• unseen = oculto

• dozen = dúzia

• again = novamente

• of course = é claro

• old sayings = velhos ditados

• to take seriously = levar a sério

• anyhow = de qualquer modo

• adage = ditado

• to reassure = reforçar, encorajar

• after all = afinal de contas

• well = bem

Com base nas informações contidas no texto, depreende-se que um possível título para o livro do qual a introdução acima foi extraída é:

A questão refere-se ao texto abaixo:

Office Life

Working Overtime is Good for You!

Are you hard-working, anxious, introverted and conscientious? If so, you’re likely to be a victim of workplace bullying. Researchers at Hull University have come up with a personality test to recognize people at risk of being bullied. The study recommends that companies give potential victims assertiveness training and social support at work so that they can be spared feeling humiliated. A separate study at the University of Manchester has found that working overtime can be good for one’s health. Managers who voluntarily stay an extra hour to catch up on work or organize themselves feel greater job satisfaction and have better mental health than those leaving on time. But if managers put in more than one hour a day extra or are forced to stay late, they are more likely to suffer anxiety.

Speak Up Ano Xll I - 158 - July, 2000

A questão refere-se ao texto cujo vocabulário principal se segue:

• to work overtime = trabalhar horas extras

• hard-working = trabalhador

• to be likely to = ser provável que

• bullying = chacota

• assertiveness = positividade, eficiência

• support = apoio

• so that = de forma que

• to spare = poupar

• health = saúde

• managers = administradores

• to catch up on work = colocar o trabalho em dia

• job = trabalho

• on time = na hora

• to stay late = ficar até tarde

• to suffer = sofrer

• anxiety = ansiedade

Qual das opções abaixo melhor descreve aspectos das pesquisas realizadas em cada uma das duas universidades mencionadas no texto?