Foram encontradas 80 questões.
O texto a seguir é referência para a questão.
Six things I learned from riding in a Google self-driving car
1 - Human beings are terrible drivers.
We drink. We doze. We text. In the US, 30,000 people die from automobile accidents every year. Traffic crashes are the primary cause of death worldwide for people aged 15-24, and during a crash, 40% of drivers never even hit the brakes. We’re flawed organisms, barreling around at high speeds in vessels covered in glass, metal, distraction, and death. This is one of Google’s “moonshots” – to remove human error from a job which, for the past hundred years, has been entirely human.
2 - Google self-driving cars are timid.
The car we rode in did not strike me as dangerous. It drove slowly and deliberately, and I got the impression that it’s more likely to annoy other drivers than to harm them.
In the early versions they tested on closed courses, the vehicles were programmed to be highly aggressive. Apparently during these tests, which involved obstacle courses full of traffic cones and inflatable crash-test objects, there were a lot of screeching brakes, roaring engines and terrified interns.
3 - They’re cute.
Google’s new fleet was intentionally designed to look adorable. Our brains are hardwired to treat inanimate (or animate) objects with greater care, caution, and reverence when they resemble a living thing. By turning self-driving cars into an adorable Skynet Marshmallow Bumper Bots, Google hopes to spiritually disarm other drivers. I also suspect the cuteness is used to quell some of the road rage that might emerge from being stuck behind one of these things. They’re intended as moderate-distance couriers, not open-road warriors, so their max speed is 25 miles per hour.
4 - It’s not done and it’s not perfect.
Some of the scenarios autonomous vehicles have the most trouble with are the same human beings have the most trouble with, such as traversing four-way stops or handling a yellow light.
The cars use a mixture of 3D laser-mapping, GPS, and radar to analyze and interpret their surroundings, and the latest versions are fully electric with a range of about 100 miles.
Despite the advantages over a human being in certain scenarios, however, these cars still aren’t ready for the real world. They can’t drive in the snow or heavy rain, and there’s a variety of complex situations they do not process well, such as passing through a construction zone. Google is hoping that, eventually, the cars will be able to handle all of this as well (or better) than a human could.
5 - I want this technology to succeed, like… yesterday.
I’m biased. Earlier this year my mom had a stroke. It damaged the visual cortex of her brain, and her vision was impaired to the point that she’ll probably never drive again. This reduced her from a fully-functional, independent human being with a career and a buzzing social life into someone who is homebound, disabled, and powerless.
When discussing self-driving cars, people tend to ask many superficial questions. They ignore that 45% of disabled people in the US still work. They ignore that 95% of a car’s lifetime is spent parked. They ignore how this technology could transform the lives of the elderly, or eradicate the need for parking lots or garages or gas stations. They dismiss the entire concept because they don’t think a computer could ever be as good at merging on the freeway as they are. They ignore the great, big, beautiful picture: that this technology could make our lives so much better.
6 - It wasn’t an exhilarating ride, and that’s a good thing.
Riding in a self-driving car is not the cybernetic thrill ride one might expect. The car drives like a person, and after a few minutes you forget that you’re being driven autonomously. You forget that a robot is differentiating cars from pedestrians from mopeds from raccoons. You forget that millions of photons are being fired from a laser and interpreting, processing, and reacting to the hand signals of a cyclist. You forget that instead of an organic brain, which has had millions of years to evolve the cognitive ability to fumble its way through a four-way stop, you’re being piloted by an artificial one, which was birthed in less than a decade.
The unfortunate part of something this transformative is the inevitable, ardent stupidity which is going to erupt from the general public. Even if in a few years self-driving cars are proven to be ten times safer than human-operated cars, all it’s going to take is one tragic accident and the public is going to lose their minds. There will be outrage. There will be politicizing. There will be hashtags.
I say look at the bigger picture. All the self-driving cars currently on the road learn from one another, and possess 40 years of driving experience. And this technology is still in its infancy.
(Adapted from: <http://theoatmeal.com/blog/google_self_driving_car>. 21/08/2016.)
The word “they”, in boldface and underlined, in section 3, refers to:
Provas
Questão presente nas seguintes provas
A qualidade de um combustível é caracterizada pelo grau de octanagem. Hidrocarbonetos de cadeia linear têm baixa octanagem e produzem combustíveis pobres. Já os alcanos ramificados são de melhor qualidade, uma vez que têm mais hidrogênios em carbonos primários e as ligações C-H requerem mais energia que ligações C-C para serem rompidas. Assim, a combustão dos hidrocarbonetos ramificados se torna mais difícil de ser iniciada, o que reduz os ruídos do motor. O isoctano é um alcano ramificado que foi definido como referência, e ao seu grau de octanagem foi atribuído o valor 100. A fórmula estrutural (forma de bastão) do isoctano é mostrada abaixo.

Qual é o nome oficial IUPAC desse alcano?
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“Enrolem esse mapa; ele não será necessário [...]”. O Primeiro Ministro Britânico William Pitt, o jovem, fez essa observação depois de ser comunicado sobre a derrota das forças britânicas na Batalha de Austerlitz, em 1805, em que ficou claro que a campanha militar de seu país na Europa Continental tinha sido frustrada.
(Longley, P.; Goodchild, M. F.; Maguire, D. J.; Rhind, D. W. Sistemas e ciência da informação geográfica. Porto Alegre: Bookman, p. 300).
Considerando as informações do texto, o desenvolvimento da cartografia e o uso de mapas, identifique como verdadeiras (V) ou falsas (F) as seguintes afirmativas:
( ) A história da cartografia mostra que mapas são confeccionados para atender objetivos específicos que, quando cumpridos, tornam obsoletas as informações neles constantes.
( ) O texto ilustra o papel dos mapas como ferramenta de apoio e planejamento a inúmeras atividades que necessitam de informações espaciais.
( ) A leitura e interpretação de mapas exige a construção de legendas apropriadas ao tipo de informação que o mapa pretende transmitir.
( ) A observação Enrolem esse mapa; ele não será necessário pode ser considerada uma afirmação atual, uma vez que a tecnologia digital, empregada nos processos de produção e distribuição de mapas, tornou dispensável seu uso em papel.
Assinale a alternativa que apresenta a sequência correta, de cima para baixo.
Provas
Questão presente nas seguintes provas
O texto a seguir é referência para a questão.
Six things I learned from riding in a Google self-driving car
1 - Human beings are terrible drivers.
We drink. We doze. We text. In the US, 30,000 people die from automobile accidents every year. Traffic crashes are the primary cause of death worldwide for people aged 15-24, and during a crash, 40% of drivers never even hit the brakes. We’re flawed organisms, barreling around at high speeds in vessels covered in glass, metal, distraction, and death. This is one of Google’s “moonshots” – to remove human error from a job which, for the past hundred years, has been entirely human.
2 - Google self-driving cars are timid.
The car we rode in did not strike me as dangerous. It drove slowly and deliberately, and I got the impression that it’s more likely to annoy other drivers than to harm them.
In the early versions they tested on closed courses, the vehicles were programmed to be highly aggressive. Apparently during these tests, which involved obstacle courses full of traffic cones and inflatable crash-test objects, there were a lot of screeching brakes, roaring engines and terrified interns.
3 - They’re cute.
Google’s new fleet was intentionally designed to look adorable. Our brains are hardwired to treat inanimate (or animate) objects with greater care, caution, and reverence when they resemble a living thing. By turning self-driving cars into an adorable Skynet Marshmallow Bumper Bots, Google hopes to spiritually disarm other drivers. I also suspect the cuteness is used to quell some of the road rage that might emerge from being stuck behind one of these things. They’re intended as moderate-distance couriers, not open-road warriors, so their max speed is 25 miles per hour.
4 - It’s not done and it’s not perfect.
Some of the scenarios autonomous vehicles have the most trouble with are the same human beings have the most trouble with, such as traversing four-way stops or handling a yellow light.
The cars use a mixture of 3D laser-mapping, GPS, and radar to analyze and interpret their surroundings, and the latest versions are fully electric with a range of about 100 miles.
Despite the advantages over a human being in certain scenarios, however, these cars still aren’t ready for the real world. They can’t drive in the snow or heavy rain, and there’s a variety of complex situations they do not process well, such as passing through a construction zone. Google is hoping that, eventually, the cars will be able to handle all of this as well (or better) than a human could.
5 - I want this technology to succeed, like… yesterday.
I’m biased. Earlier this year my mom had a stroke. It damaged the visual cortex of her brain, and her vision was impaired to the point that she’ll probably never drive again. This reduced her from a fully-functional, independent human being with a career and a buzzing social life into someone who is homebound, disabled, and powerless.
When discussing self-driving cars, people tend to ask many superficial questions. They ignore that 45% of disabled people in the US still work. They ignore that 95% of a car’s lifetime is spent parked. They ignore how this technology could transform the lives of the elderly, or eradicate the need for parking lots or garages or gas stations. They dismiss the entire concept because they don’t think a computer could ever be as good at merging on the freeway as they are. They ignore the great, big, beautiful picture: that this technology could make our lives so much better.
6 - It wasn’t an exhilarating ride, and that’s a good thing.
Riding in a self-driving car is not the cybernetic thrill ride one might expect. The car drives like a person, and after a few minutes you forget that you’re being driven autonomously. You forget that a robot is differentiating cars from pedestrians from mopeds from raccoons. You forget that millions of photons are being fired from a laser and interpreting, processing, and reacting to the hand signals of a cyclist. You forget that instead of an organic brain, which has had millions of years to evolve the cognitive ability to fumble its way through a four-way stop, you’re being piloted by an artificial one, which was birthed in less than a decade.
The unfortunate part of something this transformative is the inevitable, ardent stupidity which is going to erupt from the general public. Even if in a few years self-driving cars are proven to be ten times safer than human-operated cars, all it’s going to take is one tragic accident and the public is going to lose their minds. There will be outrage. There will be politicizing. There will be hashtags.
I say look at the bigger picture. All the self-driving cars currently on the road learn from one another, and possess 40 years of driving experience. And this technology is still in its infancy.
(Adapted from: <http://theoatmeal.com/blog/google_self_driving_car>. 21/08/2016.)
Consider the following:
1. Drinking before driving.
2. Sending a written message while driving.
3. Sleeping for a short period of time.
4. Hitting the brakes.
5. Speeding up.
According to the text, some human mistakes that happen before or during a car accident are:
Provas
Questão presente nas seguintes provas
O Brasil tem 206,08 milhões de habitantes, segundo dados divulgados nesta terça-feira (30) [agosto, 2016] pelo Instituto Brasileiro de Geografia e Estatística (IBGE). Estimativas publicadas no Diário Oficial da União indicam que o país tinha, em 1º de julho deste ano, 206.081.432 habitantes. No ano passado, a população era de 204.450.649, ou seja, o crescimento da população foi de 0,8%.
(Disponível em: <http://noticias.uol.com.br/ultimas-noticias/agencia-brasil/2016/
08/30/ibge-brasil-ja-tem-206-milhoes-de-habitantes.htm>. Acessado em 31.08.2016.)
Com base nas informações do texto e nos conhecimentos em geografia da população, assinale a alternativa correta.
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Questão presente nas seguintes provas
Suponha que a quantidade !$ Q !$ de um determinado medicamento no organismo !$ t !$ horas após sua administração possa ser calculada pela fórmula:
!$ Q=15.\large\left ( 1\over10 \right )^{2t} !$
sendo !$ Q !$ medido em miligramas. A expressão que fornece o tempo t em função da quantidade de medicamento Q é:
Provas
Questão presente nas seguintes provas
Considere a reta r de equação !$ y !$ = !$ 2 !$!$ x !$ + !$ 1 !$.
Qual das retas abaixo é perpendicular à reta r e passa pelo ponto !$ P !$ = (!$ 4 !$,!$ 2 !$)?
Provas
Questão presente nas seguintes provas
O texto a seguir é referência para a questão.
Six things I learned from riding in a Google self-driving car
1 - Human beings are terrible drivers.
We drink. We doze. We text. In the US, 30,000 people die from automobile accidents every year. Traffic crashes are the primary cause of death worldwide for people aged 15-24, and during a crash, 40% of drivers never even hit the brakes. We’re flawed organisms, barreling around at high speeds in vessels covered in glass, metal, distraction, and death. This is one of Google’s “moonshots” – to remove human error from a job which, for the past hundred years, has been entirely human.
2 - Google self-driving cars are timid.
The car we rode in did not strike me as dangerous. It drove slowly and deliberately, and I got the impression that it’s more likely to annoy other drivers than to harm them.
In the early versions they tested on closed courses, the vehicles were programmed to be highly aggressive. Apparently during these tests, which involved obstacle courses full of traffic cones and inflatable crash-test objects, there were a lot of screeching brakes, roaring engines and terrified interns.
3 - They’re cute.
Google’s new fleet was intentionally designed to look adorable. Our brains are hardwired to treat inanimate (or animate) objects with greater care, caution, and reverence when they resemble a living thing. By turning self-driving cars into an adorable Skynet Marshmallow Bumper Bots, Google hopes to spiritually disarm other drivers. I also suspect the cuteness is used to quell some of the road rage that might emerge from being stuck behind one of these things. They’re intended as moderate-distance couriers, not open-road warriors, so their max speed is 25 miles per hour.
4 - It’s not done and it’s not perfect.
Some of the scenarios autonomous vehicles have the most trouble with are the same human beings have the most trouble with, such as traversing four-way stops or handling a yellow light.
The cars use a mixture of 3D laser-mapping, GPS, and radar to analyze and interpret their surroundings, and the latest versions are fully electric with a range of about 100 miles.
Despite the advantages over a human being in certain scenarios, however, these cars still aren’t ready for the real world. They can’t drive in the snow or heavy rain, and there’s a variety of complex situations they do not process well, such as passing through a construction zone. Google is hoping that, eventually, the cars will be able to handle all of this as well (or better) than a human could.
5 - I want this technology to succeed, like… yesterday.
I’m biased. Earlier this year my mom had a stroke. It damaged the visual cortex of her brain, and her vision was impaired to the point that she’ll probably never drive again. This reduced her from a fully-functional, independent human being with a career and a buzzing social life into someone who is homebound, disabled, and powerless.
When discussing self-driving cars, people tend to ask many superficial questions. They ignore that 45% of disabled people in the US still work. They ignore that 95% of a car’s lifetime is spent parked. They ignore how this technology could transform the lives of the elderly, or eradicate the need for parking lots or garages or gas stations. They dismiss the entire concept because they don’t think a computer could ever be as good at merging on the freeway as they are. They ignore the great, big, beautiful picture: that this technology could make our lives so much better.
6 - It wasn’t an exhilarating ride, and that’s a good thing.
Riding in a self-driving car is not the cybernetic thrill ride one might expect. The car drives like a person, and after a few minutes you forget that you’re being driven autonomously. You forget that a robot is differentiating cars from pedestrians from mopeds from raccoons. You forget that millions of photons are being fired from a laser and interpreting, processing, and reacting to the hand signals of a cyclist. You forget that instead of an organic brain, which has had millions of years to evolve the cognitive ability to fumble its way through a four-way stop, you’re being piloted by an artificial one, which was birthed in less than a decade.
The unfortunate part of something this transformative is the inevitable, ardent stupidity which is going to erupt from the general public. Even if in a few years self-driving cars are proven to be ten times safer than human-operated cars, all it’s going to take is one tragic accident and the public is going to lose their minds. There will be outrage. There will be politicizing. There will be hashtags.
I say look at the bigger picture. All the self-driving cars currently on the road learn from one another, and possess 40 years of driving experience. And this technology is still in its infancy.
(Adapted from: <http://theoatmeal.com/blog/google_self_driving_car>. 21/08/2016.)
Based on the text, it is correct to affirm that the author:
Provas
Questão presente nas seguintes provas
“E não gostavas de festa... / Ó velho, que festa grande / hoje te faria a gente”. Esses são os versos de abertura do poema “A Mesa”, parte integrante do livro Claro Enigma, de Carlos Drummond de Andrade. Neles podem ser identificados alguns elementos do poema, entre os quais o destinatário, um patriarca, a quem o eu-lírico se dirige ao longo de centenas de versos.
A respeito de “A Mesa” e de sua integração com outros poemas do mesmo livro, assinale a alternativa correta.
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Em momentos de estresse, as glândulas suprarrenais secretam o hormônio adrenalina, que, a partir da aceleração dos batimentos cardíacos, do aumento da pressão arterial e da contração ou relaxamento de músculos, prepara o organismo para a fuga ou para a defesa.

Dados – M (g mol-1): H = 1; C = 12; N = 14; O = 16.
Qual é o valor da massa molar (em g mol-1) desse composto?
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Cadernos
Caderno Container