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Q1857075 Química
Tecidos empregados na confecção de roupas em geral podem ser divididos em naturais, que compreendem o algodão, a lã e a seda, e em sintéticos, como o poliéster, o polipropileno, o náilon etc. Diferentemente do algodão, constituído por fibras de celulose que contêm unidades de carboidratos, a seda é constituída de fibras proteicas que contêm aminoácidos, sendo essas fibras produzidas pelo bicho-da-seda. Esse tecido foi introduzido por volta do ano 2600 a.C. e até hoje é considerado insubstituível devido às suas características. A estrutura constituinte da fibra da seda corresponde a: 
Alternativas
Q1857072 Matemática
O estágio inicial de um modelo epidemiológico, que mede o número de pessoas infectadas em uma população, é descrito pela função I(t) = I02rt ,em que I(t) representa o número de infectados da população,  I0 > 0 representa o número inicial de infectados,  r > representa a taxa de contágio e t é o tempo medido em dias desde o início da epidemia. Com relação ao número de infectados, é correto afirmar: 
Alternativas
Q1857071 Matemática
Ana, Beatriz e Carlos pediram uma pizza de oito fatias, metade sabor mozarela e outra metade sabor calabresa. Sabendo que Ana e Carlos preferem calabresa e Beatriz prefere mozarela, após cada um dos três ter escolhido uma fatia de pizza de acordo com sua preferência, qual é a probabilidade de Ana, Beatriz e Carlos terem escolhido pedaços que estejam lado a lado na pizza?
Alternativas
Q1857069 Matemática
Na figura ao lado, há uma circunferência de centro C. Se o ângulo a mede π/3 radianos, a razão entre a área do setor circular PCQ e a área do triângulo PCQ é:
Imagem associada para resolução da questão


Alternativas
Q1857061 Física
O texto a seguir é referência para a questão.

Em todas as questões, as medições são feitas por um referencial inercial.
O módulo da aceleração gravitacional é representado por g. Onde for necessário, use g = 10 m/s2 para o módulo da aceleração gravitacional.
Uma certa massa de gás ideal passa pelo processo termodinâmico ilustrado na figura ao lado, que apresenta um diagrama P x V (pressão em função do volume).
Considerando que a temperatura do gás no ponto A vale TA = 50 K, assinale a alternativa que apresenta corretamente a temperatura TB do gás no ponto B. Imagem associada para resolução da questão
Alternativas
Q1857060 Física
O texto a seguir é referência para a questão.

Em todas as questões, as medições são feitas por um referencial inercial.
O módulo da aceleração gravitacional é representado por g. Onde for necessário, use g = 10 m/s2 para o módulo da aceleração gravitacional.
Uma onda é produzida numa corda de modo que a velocidade de propagação vale v = 5 m/s. Sabe-se que a distância entre dois nós sucessivos dessa onda é de 5 mm. Considerando as informações apresentadas, assinale a alternativa que apresenta corretamente o período t da onda na corda.
Alternativas
Q1857059 Física
O texto a seguir é referência para a questão.

Em todas as questões, as medições são feitas por um referencial inercial.
O módulo da aceleração gravitacional é representado por g. Onde for necessário, use g = 10 m/s2 para o módulo da aceleração gravitacional.
Um objeto de massa m está em repouso a uma altura H acima da superfície da Terra. Sujeito à força gravitacional, num dado momento, ele cai verticalmente em direção à Terra. Desprezando qualquer força dissipativa e considerando que a aceleração gravitacional se mantém constante durante todo o movimento, assinale a alternativa que apresenta corretamente o valor do módulo da velocidade v do objeto quando ele está a uma altura H/2 acima da superfície da Terra.  
Alternativas
Q1857049 Geografia
A China representa oportunidades ímpares para o agronegócio brasileiro. Sua enorme população e o crescimento da renda dos chineses demandam, continuamente, mais alimentos, tanto em quantidade quanto em qualidade. A respeito da agricultura chinesa e das possibilidades de o agronegócio brasileiro manter-se atuante no mercado chinês, considere as seguintes afirmativas:
1. Se por um lado o governo brasileiro precisa conhecer bem as transformações em andamento na política e na sociedade chinesas no que tange à criação de oportunidades para o agronegócio brasileiro, por outro lado o governo do Brasil necessita investir internamente em infraestrutura para tornar o país mais competitivo no mercado chinês de commodities. 2. Dado o enorme consumo de uma população superior a 1,4 bilhão de pessoas associado ao fato de uma agricultura com produção insuficiente para abastecer as demandas internas, a China necessita importar soja, arroz, milho e trigo, podendo beneficiar-se do agronegócio brasileiro. 3. Diferentemente do Brasil, boa parte das terras chinesas são inaproveitáveis para a agricultura, devido à declividade do relevo, ao clima inadequado e a processos de desertificação, assim como à degradação de terras aráveis e sua contaminação decorrente do uso excessivo de insumos, exigindo novas práticas ambientalmente adequadas. 4. Desde 2009, a China é considerada o maior parceiro comercial do Brasil, e a parceria entre ambos já é vista como parceria global, em que o agronegócio é um dos pilares da relação bilateral, demandando a cooperação em ciência e tecnologia agropecuária.
Assinale a alternativa correta. 
Alternativas
Q1857048 Geografia
As linhas de um mapa que conectam pontos de igual valor são denominadas isolinhas, como os pontos de iguais cotas de altitude utilizados nas representações cartográficas do relevo. Com base nas representações cartográficas do relevo, é correto afirmar que isolinhas:
Alternativas
Q1857045 Geografia
A expansão das atividades agropecuárias e a ação de madeireiras e mineradoras têm ocasionado a redução dos ecossistemas brasileiros há séculos, colocando uma série de espécies vegetais sob risco de extinção. No que diz respeito a medidas que assegurem a manutenção dos ecossistemas naturais brasileiros e de sua diversidade biológica, é imprescindível que:
Alternativas
Q1857033 Português

O texto a seguir é referência para a questão.

Do que tanto ri esse tal de Scorsese?

Sergio Del Molino




Com relação ao sentido de algumas palavras usadas no texto, considere as seguintes afirmativas:
1. Na linha 7, “um engraçadinho” refere-se a David Lynch. 2. Na linha 10, Ginia Bellafante é a velha que resmunga. 3. Na linha 12, “um deus maior do Parnaso” faz referência ao diretor de cinema que participa do seriado     “Faz de conta que NY é uma cidade”.
Assinale a alternativa correta.
Alternativas
Q1857032 Português

O texto a seguir é referência para a questão.

Do que tanto ri esse tal de Scorsese?

Sergio Del Molino




Assinale a alternativa que preenche corretamente a lacuna na linha 3 do texto. 
Alternativas
Q1857029 Português

O texto a seguir é referência para a questão. 


(Peter Burke. Quando foi a globalização? In: O historiador como colunista: ensaios da Folha. RJ: Civilização Brasileira, 2009. Adaptado.)

Nossos contemporâneos não são os únicos a se alvoroçarem pela ideia de que nossas experiências são díspares daquelas das gerações passadas.
Alternativas
Ano: 2021 Banca: NC-UFPR Órgão: UFPR Prova: NC-UFPR - 2021 - UFPR - Vestibular - Espanhol |
Q1856892 Espanhol
Considera la siguiente frase:
“Sí hombre, ¿no t’acuerdas de uno que vivía ahí al lao de la plaza, que era mozo viejo?”
A partir de esa frase, es correcto afirmar:  
Alternativas
Ano: 2021 Banca: NC-UFPR Órgão: UFPR Prova: NC-UFPR - 2021 - UFPR - Vestibular - Espanhol |
Q1856891 Espanhol
El texto a continuación sirve como referencia para la cuestion.

Tápate el culo

    Resulta que el culo era lo más importante. Pero vamos por partes. La primera tiene que ver con algunos especímenes de sexo masculino y con su particular visión de los traseros de algunas mujeres, en concreto las socorristas de las playas de Gijón. Ellas están allí para salvar vidas – en España mueren ahogadas casi cuatrocientas personas cada año, no lo olviden – y las presuponemos con formación y la experiencia suficientes para meterse en el agua, superar las condiciones adversas que haya en ese momento, sacar a alguien, que incluso pese el doble que ellas, y llevarlo sano y salvo a la arena. Y, si no lo está, practicarle la reanimación cardiopulmonar o el auxilio que necesite hasta que llegue la ambulancia.
    Pero, a pesar de todo, esas mujeres han sido noticia por sus culos. Literalmente. Las redes se han llenado de fotografías de los traseros de estas socorristas, acompañadas de zafios comentarios machistas.
    La segunda parte de esta historia tiene que ver con la solución que ha encontrado el Ayuntamiento de Gijón para atajar la polémica: pedirles a esas socorristas que se pongan el pantalón encima del traje de baño de trabajo. Es decir, que se tapen. ¿Qué implica esto? Pues no solo que tengan más dificultades a la hora de rescatar a alguien que se está ahogando, sino que haciendo que ellas se cubran las estamos culpabilizando.

(Texto adaptado – CHAPARRO, Carme. Calladita estás más guapa. Madrid: Espasa, 2019.)
El cambio en la vestimenta de las socorristas:
Alternativas
Ano: 2021 Banca: NC-UFPR Órgão: UFPR Prova: NC-UFPR - 2021 - UFPR - Vestibular - Espanhol |
Q1856890 Espanhol
El texto a continuación sirve como referencia para la cuestion.

Tápate el culo

    Resulta que el culo era lo más importante. Pero vamos por partes. La primera tiene que ver con algunos especímenes de sexo masculino y con su particular visión de los traseros de algunas mujeres, en concreto las socorristas de las playas de Gijón. Ellas están allí para salvar vidas – en España mueren ahogadas casi cuatrocientas personas cada año, no lo olviden – y las presuponemos con formación y la experiencia suficientes para meterse en el agua, superar las condiciones adversas que haya en ese momento, sacar a alguien, que incluso pese el doble que ellas, y llevarlo sano y salvo a la arena. Y, si no lo está, practicarle la reanimación cardiopulmonar o el auxilio que necesite hasta que llegue la ambulancia.
    Pero, a pesar de todo, esas mujeres han sido noticia por sus culos. Literalmente. Las redes se han llenado de fotografías de los traseros de estas socorristas, acompañadas de zafios comentarios machistas.
    La segunda parte de esta historia tiene que ver con la solución que ha encontrado el Ayuntamiento de Gijón para atajar la polémica: pedirles a esas socorristas que se pongan el pantalón encima del traje de baño de trabajo. Es decir, que se tapen. ¿Qué implica esto? Pues no solo que tengan más dificultades a la hora de rescatar a alguien que se está ahogando, sino que haciendo que ellas se cubran las estamos culpabilizando.

(Texto adaptado – CHAPARRO, Carme. Calladita estás más guapa. Madrid: Espasa, 2019.)
La frase que da título al texto – “Tápate el culo” – ironiza la decisión tomada por:  
Alternativas
Ano: 2021 Banca: NC-UFPR Órgão: UFPR Prova: NC-UFPR - 2021 - UFPR - Vestibular - Espanhol |
Q1856889 Espanhol
El texto a continuación sirve como referencia para la cuestion.

Tápate el culo

    Resulta que el culo era lo más importante. Pero vamos por partes. La primera tiene que ver con algunos especímenes de sexo masculino y con su particular visión de los traseros de algunas mujeres, en concreto las socorristas de las playas de Gijón. Ellas están allí para salvar vidas – en España mueren ahogadas casi cuatrocientas personas cada año, no lo olviden – y las presuponemos con formación y la experiencia suficientes para meterse en el agua, superar las condiciones adversas que haya en ese momento, sacar a alguien, que incluso pese el doble que ellas, y llevarlo sano y salvo a la arena. Y, si no lo está, practicarle la reanimación cardiopulmonar o el auxilio que necesite hasta que llegue la ambulancia.
    Pero, a pesar de todo, esas mujeres han sido noticia por sus culos. Literalmente. Las redes se han llenado de fotografías de los traseros de estas socorristas, acompañadas de zafios comentarios machistas.
    La segunda parte de esta historia tiene que ver con la solución que ha encontrado el Ayuntamiento de Gijón para atajar la polémica: pedirles a esas socorristas que se pongan el pantalón encima del traje de baño de trabajo. Es decir, que se tapen. ¿Qué implica esto? Pues no solo que tengan más dificultades a la hora de rescatar a alguien que se está ahogando, sino que haciendo que ellas se cubran las estamos culpabilizando.

(Texto adaptado – CHAPARRO, Carme. Calladita estás más guapa. Madrid: Espasa, 2019.)
Al relatar la anécdota de las socorristas de Gijón, Carme Chaparro llama la atención para el hecho de que:
Alternativas
Ano: 2021 Banca: UECE-CEV Órgão: UECE Prova: UECE-CEV - 2021 - UECE - Prova de Conhecimentos Gerais - 1ª Fase |
Q1853969 Inglês

T E X T

Men Fall Behind in College Enrollment.

Women Still Play Catch-Up at Work.


    The coronavirus upended the lives of millions of college students. The Wall Street Journal reported this week that men have been hit particularly hard — accounting for roughly three-fourths of pandemic-driven dropouts — and depicted an accelerating crisis in male enrollment.

     A closer look at historical trends and the labor market reveals a more complex picture, one in which women keep playing catch-up in an economy structured to favor men.

    In many ways, the college gender imbalance is not new. Women have outnumbered men on campus since the late 1970s. The ratio of female to male undergraduates increased much more from 1970 to 1980 than from 1980 to the present. And the numbers haven’t changed much in recent decades. In 1992, 55 percent of college students were women. By 2019, the number had nudged up to 57.4 percent.

    While the shift in the college gender ratio is often characterized as men “falling behind,” men are actually more likely to go to college today than they were when they were the majority, many decades ago. In 1970, 32 percent of men 18 to 24 were enrolled in college, a level that was most likely inflated by the opportunity to avoid being drafted into the Vietnam War. That percentage dropped to 24 percent in 1978 and then steadily grew to a stable 37 percent to 39 percent over the last decade.

    The gender ratio mostly changed because female enrollment increased even faster, more than doubling over the last half-century.

    Because of the change in ratio, some selective colleges discriminate against women in admissions to maintain a gender balance, as The Journal reported. Generally, admissions officials prefer to limit the disparity to 55 percent female and 45 percent male. Their reason not to let the gender ratio drift further toward 2 to 1 is straightforward: Such a ratio would most likely cause a decrease in applications.

    In a New York Times essay in 2006 titled “To All the Girls I’ve Rejected,” the dean of admissions at Kenyon College at the time explained: “Beyond the availability of dance partners for the winter formal, gender balance matters in ways both large and small on a residential college campus. Once you become decidedly female in enrollment, fewer males and, as it turns out, fewer females find your campus attractive.”

    The raw numbers don’t take into account the varying value of college degrees. Men still dominate in fields like technology and engineering, which offer some of the highest salaries for recent graduates. Perhaps not coincidentally, the professors in those fields remain overwhelmingly male.

    Women surged into college because they were able to, but also because many had to. There are still some good-paying jobs available to men without college credentials. There are relatively few for such women. And despite the considerable cost in time and money of earning a degree, many female-dominated jobs don’t pay well.

    The fact that the male-female wage gap remains large after more than four decades in which women outnumbered men in college strongly suggests that college alone offers a narrow view of opportunity. Women often seem stuck in place: As they overcome obstacles and use their degrees to move into male-dominated fields, the fields offer less pay in return.

    None of this diminishes the significance of the male decrease in college enrollment and graduation. Educators view the male-driven dive in community college enrollment over the last 18 months as a calamity. The pandemic confirmed what was already known. Higher socioeconomic classes are deeply embedded in college and will bear considerable cost and inconvenience to stay there, even if it means watching lectures on a laptop in the room above your parent’s garage and missing a season of parties and football games.

    For other people, college attendance is far more fragile. It does not define their identities and is not as important as earning a steady paycheck or starting and nurturing a family. In a time of crisis, it can be delayed — but the reality is that people who drop out of college are statistically unlikely to complete a degree.

    Last year, women were less likely than men to leave community college, despite their disproportionate responsibility for caregiving and domestic work, because they no doubt understood the bleak long-term job prospects for women without a credential. 

www.nytimes.com/Sept.9,2021

An article about the subject discussed in this text was first published in the
Alternativas
Ano: 2021 Banca: UECE-CEV Órgão: UECE Prova: UECE-CEV - 2021 - UECE - Prova de Conhecimentos Gerais - 1ª Fase |
Q1853968 Inglês

T E X T

Men Fall Behind in College Enrollment.

Women Still Play Catch-Up at Work.


    The coronavirus upended the lives of millions of college students. The Wall Street Journal reported this week that men have been hit particularly hard — accounting for roughly three-fourths of pandemic-driven dropouts — and depicted an accelerating crisis in male enrollment.

     A closer look at historical trends and the labor market reveals a more complex picture, one in which women keep playing catch-up in an economy structured to favor men.

    In many ways, the college gender imbalance is not new. Women have outnumbered men on campus since the late 1970s. The ratio of female to male undergraduates increased much more from 1970 to 1980 than from 1980 to the present. And the numbers haven’t changed much in recent decades. In 1992, 55 percent of college students were women. By 2019, the number had nudged up to 57.4 percent.

    While the shift in the college gender ratio is often characterized as men “falling behind,” men are actually more likely to go to college today than they were when they were the majority, many decades ago. In 1970, 32 percent of men 18 to 24 were enrolled in college, a level that was most likely inflated by the opportunity to avoid being drafted into the Vietnam War. That percentage dropped to 24 percent in 1978 and then steadily grew to a stable 37 percent to 39 percent over the last decade.

    The gender ratio mostly changed because female enrollment increased even faster, more than doubling over the last half-century.

    Because of the change in ratio, some selective colleges discriminate against women in admissions to maintain a gender balance, as The Journal reported. Generally, admissions officials prefer to limit the disparity to 55 percent female and 45 percent male. Their reason not to let the gender ratio drift further toward 2 to 1 is straightforward: Such a ratio would most likely cause a decrease in applications.

    In a New York Times essay in 2006 titled “To All the Girls I’ve Rejected,” the dean of admissions at Kenyon College at the time explained: “Beyond the availability of dance partners for the winter formal, gender balance matters in ways both large and small on a residential college campus. Once you become decidedly female in enrollment, fewer males and, as it turns out, fewer females find your campus attractive.”

    The raw numbers don’t take into account the varying value of college degrees. Men still dominate in fields like technology and engineering, which offer some of the highest salaries for recent graduates. Perhaps not coincidentally, the professors in those fields remain overwhelmingly male.

    Women surged into college because they were able to, but also because many had to. There are still some good-paying jobs available to men without college credentials. There are relatively few for such women. And despite the considerable cost in time and money of earning a degree, many female-dominated jobs don’t pay well.

    The fact that the male-female wage gap remains large after more than four decades in which women outnumbered men in college strongly suggests that college alone offers a narrow view of opportunity. Women often seem stuck in place: As they overcome obstacles and use their degrees to move into male-dominated fields, the fields offer less pay in return.

    None of this diminishes the significance of the male decrease in college enrollment and graduation. Educators view the male-driven dive in community college enrollment over the last 18 months as a calamity. The pandemic confirmed what was already known. Higher socioeconomic classes are deeply embedded in college and will bear considerable cost and inconvenience to stay there, even if it means watching lectures on a laptop in the room above your parent’s garage and missing a season of parties and football games.

    For other people, college attendance is far more fragile. It does not define their identities and is not as important as earning a steady paycheck or starting and nurturing a family. In a time of crisis, it can be delayed — but the reality is that people who drop out of college are statistically unlikely to complete a degree.

    Last year, women were less likely than men to leave community college, despite their disproportionate responsibility for caregiving and domestic work, because they no doubt understood the bleak long-term job prospects for women without a credential. 

www.nytimes.com/Sept.9,2021

Still in relation to the decrease of male enrollment in college during the pandemic, it is stated that students from the upper classes
Alternativas
Ano: 2021 Banca: UECE-CEV Órgão: UECE Prova: UECE-CEV - 2021 - UECE - Prova de Conhecimentos Gerais - 1ª Fase |
Q1853967 Inglês

T E X T

Men Fall Behind in College Enrollment.

Women Still Play Catch-Up at Work.


    The coronavirus upended the lives of millions of college students. The Wall Street Journal reported this week that men have been hit particularly hard — accounting for roughly three-fourths of pandemic-driven dropouts — and depicted an accelerating crisis in male enrollment.

     A closer look at historical trends and the labor market reveals a more complex picture, one in which women keep playing catch-up in an economy structured to favor men.

    In many ways, the college gender imbalance is not new. Women have outnumbered men on campus since the late 1970s. The ratio of female to male undergraduates increased much more from 1970 to 1980 than from 1980 to the present. And the numbers haven’t changed much in recent decades. In 1992, 55 percent of college students were women. By 2019, the number had nudged up to 57.4 percent.

    While the shift in the college gender ratio is often characterized as men “falling behind,” men are actually more likely to go to college today than they were when they were the majority, many decades ago. In 1970, 32 percent of men 18 to 24 were enrolled in college, a level that was most likely inflated by the opportunity to avoid being drafted into the Vietnam War. That percentage dropped to 24 percent in 1978 and then steadily grew to a stable 37 percent to 39 percent over the last decade.

    The gender ratio mostly changed because female enrollment increased even faster, more than doubling over the last half-century.

    Because of the change in ratio, some selective colleges discriminate against women in admissions to maintain a gender balance, as The Journal reported. Generally, admissions officials prefer to limit the disparity to 55 percent female and 45 percent male. Their reason not to let the gender ratio drift further toward 2 to 1 is straightforward: Such a ratio would most likely cause a decrease in applications.

    In a New York Times essay in 2006 titled “To All the Girls I’ve Rejected,” the dean of admissions at Kenyon College at the time explained: “Beyond the availability of dance partners for the winter formal, gender balance matters in ways both large and small on a residential college campus. Once you become decidedly female in enrollment, fewer males and, as it turns out, fewer females find your campus attractive.”

    The raw numbers don’t take into account the varying value of college degrees. Men still dominate in fields like technology and engineering, which offer some of the highest salaries for recent graduates. Perhaps not coincidentally, the professors in those fields remain overwhelmingly male.

    Women surged into college because they were able to, but also because many had to. There are still some good-paying jobs available to men without college credentials. There are relatively few for such women. And despite the considerable cost in time and money of earning a degree, many female-dominated jobs don’t pay well.

    The fact that the male-female wage gap remains large after more than four decades in which women outnumbered men in college strongly suggests that college alone offers a narrow view of opportunity. Women often seem stuck in place: As they overcome obstacles and use their degrees to move into male-dominated fields, the fields offer less pay in return.

    None of this diminishes the significance of the male decrease in college enrollment and graduation. Educators view the male-driven dive in community college enrollment over the last 18 months as a calamity. The pandemic confirmed what was already known. Higher socioeconomic classes are deeply embedded in college and will bear considerable cost and inconvenience to stay there, even if it means watching lectures on a laptop in the room above your parent’s garage and missing a season of parties and football games.

    For other people, college attendance is far more fragile. It does not define their identities and is not as important as earning a steady paycheck or starting and nurturing a family. In a time of crisis, it can be delayed — but the reality is that people who drop out of college are statistically unlikely to complete a degree.

    Last year, women were less likely than men to leave community college, despite their disproportionate responsibility for caregiving and domestic work, because they no doubt understood the bleak long-term job prospects for women without a credential. 

www.nytimes.com/Sept.9,2021

Statistics show that college dropouts
Alternativas
Respostas
7801: A
7802: D
7803: A
7804: C
7805: C
7806: B
7807: D
7808: D
7809: A
7810: A
7811: B
7812: D
7813: A
7814: C
7815: A
7816: B
7817: D
7818: B
7819: A
7820: D