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Q3503352
Física
A figura representa um carrinho que parte do repouso no ponto X
a uma altura de 28 m, e percorre um trecho de montanha russa
até chegar ao ponto y, com altura igual a 8 m. Considere que não
há forças dissipativas, e o valor da aceleração da gravidade é de 10
m/s2
.
A velocidade com que o carrinho chega ao ponto y é
A velocidade com que o carrinho chega ao ponto y é
Q3503351
Física
A figura representa quatro blocos de massas iguais a 10 kg
apoiados em um plano horizontal perfeitamente liso. Aplica-se ao
corpo A uma força horizontal F = 8 N.
O módulo da força que o corpo C exerce sobre o corpo B tem módulo igual a
O módulo da força que o corpo C exerce sobre o corpo B tem módulo igual a
Q3503350
Física
Considere o vagão de um trem em movimento, conforme representado na figura a seguir.
Um observador externo observa um pêndulo preso ao teto do vagão deslocado da direção vertical, indicada pela linha pontilhada.
Sabendo que o vagão se desloca em trajetória horizontal e retilínea, ele pode estar se movimentando de
Q3503349
Física
Uma partícula parte do repouso e mantém aceleração constante
durante um intervalo de tempo t. Continua em movimento
progressivo, mantendo velocidade constante pelo mesmo
intervalo de tempo t. Em seguida, desacelera com aceleração
constante, levando um intervalo de tempo 2t para retornar ao
repouso. O movimento é horizontal e retilíneo.
O gráfico que melhor representa a variação da posição em função do tempo do movimento descrito é:
O gráfico que melhor representa a variação da posição em função do tempo do movimento descrito é:
Q3503348
Matemática
Um indivíduo está de pé sobre uma rua horizontal olhando
fixamente para o topo de um poste vertical de 6 metros de altura.
Quando o indivíduo estava em uma posição em que o ângulo de
elevação do seu olhar era 30o, ele caminhou 5 metros na direção
do poste, se aproximando deste, até parar no ponto em que o
ângulo de elevação do olhar passou a ser de 60o.
Considerando-se 1,7 como aproximação para a √3, é correto afirmar que a altura dos olhos do indivíduo, em metros, é
Considerando-se 1,7 como aproximação para a √3, é correto afirmar que a altura dos olhos do indivíduo, em metros, é
Q3503346
Matemática
Diariamente, a altura H (em metros) da maré em certo cais pode ser modelada por
em que t é o tempo decorrido, em horas, desde a meia-noite.
Nesse local, a altura máxima atingida pela maré, em metros, ao longo de um dia é
Q3503341
Matemática
A figura ilustra duas circunferências concêntricas, de centro em O,
sobre as quais se constrói um circuito fechado ABCDA, formado
pelos segmentos de reta AB e CD, intercalados por dois arcos de
circunferência AD e BC.
Os pontos A e D pertencem à circunferência de raio 5 cm e os pontos B e C, à circunferência de raio 2 cm. O arco AD mede 240o e os prolongamentos de AB e CD contêm o ponto O. Considerando-se π igual a 3, o comprimento do circuito completo é
Os pontos A e D pertencem à circunferência de raio 5 cm e os pontos B e C, à circunferência de raio 2 cm. O arco AD mede 240o e os prolongamentos de AB e CD contêm o ponto O. Considerando-se π igual a 3, o comprimento do circuito completo é
Q3503340
Matemática
Em uma caixa, há exatamente 10 balas, sendo 6 delas de leite e as
demais, de coco. Exatamente duas balas serão retiradas
aleatoriamente da caixa, uma de cada vez, sem reposição.
A probabilidade de que se obtenha pelo menos uma bala de coco é
A probabilidade de que se obtenha pelo menos uma bala de coco é
Q3503338
Matemática
A seguinte matriz quadrada M = (mij )
3x3
foi construída de tal
maneira que mi3 = mi1 − mi2 , ∀i ∈ {1,2,3}.
O determinante de M vale
O determinante de M vale
Q3503336
Inglês
The speech “Don’t try to sneak a water bottle past security this
time” implies that the character in the cartoon
Q3503334
Inglês
Texto associado
Text I
Understanding bias in facial recognition technologies
Over the past couple of years, the growing debate around
automated facial recognition has reached a boiling point. As
developers have continued to swiftly expand the scope of these
kinds of technologies into an almost unbounded range of
applications, an increasingly strident chorus of critical voices has
sounded concerns about the injurious effects of the proliferation
of such systems on impacted individuals and communities. Critics
argue that the irresponsible design and use of facial detection and
recognition technologies (FDRTs) threaten to violate civil liberties,
infringe on basic human rights and further entrench structural
racism and systemic marginalisation. In addition, they argue that
the gradual creep of face surveillance infrastructures into every
domain of lived experience may eventually eradicate the modern
democratic forms of life that have long provided cherished means
to individual flourishing, social solidarity and human self-creation.
Defenders, by contrast, emphasise the gains in public safety,
security and efficiency that digitally streamlined capacities for
facial identification, identity verification and trait characterisation
may bring. These proponents point to potential real-world benefits
like the added security of facial recognition enhanced border
control, the increased efficacy of missing children or criminal
suspect searches that are driven by the application of brute force
facial analysis to largescale databases and the many added
conveniences of facial verification in the business of everyday life.
Whatever side of the debate on which one lands, it would
appear that FDRTs are here to stay.
Adapted from: understanding_bias_in_facial_recognition_technology.pdf
The word “like” in “like the added security of facial recognition”
(2nd paragraph) introduces a(n)
Q3503333
Inglês
Texto associado
Text I
Understanding bias in facial recognition technologies
Over the past couple of years, the growing debate around
automated facial recognition has reached a boiling point. As
developers have continued to swiftly expand the scope of these
kinds of technologies into an almost unbounded range of
applications, an increasingly strident chorus of critical voices has
sounded concerns about the injurious effects of the proliferation
of such systems on impacted individuals and communities. Critics
argue that the irresponsible design and use of facial detection and
recognition technologies (FDRTs) threaten to violate civil liberties,
infringe on basic human rights and further entrench structural
racism and systemic marginalisation. In addition, they argue that
the gradual creep of face surveillance infrastructures into every
domain of lived experience may eventually eradicate the modern
democratic forms of life that have long provided cherished means
to individual flourishing, social solidarity and human self-creation.
Defenders, by contrast, emphasise the gains in public safety,
security and efficiency that digitally streamlined capacities for
facial identification, identity verification and trait characterisation
may bring. These proponents point to potential real-world benefits
like the added security of facial recognition enhanced border
control, the increased efficacy of missing children or criminal
suspect searches that are driven by the application of brute force
facial analysis to largescale databases and the many added
conveniences of facial verification in the business of everyday life.
Whatever side of the debate on which one lands, it would
appear that FDRTs are here to stay.
Adapted from: understanding_bias_in_facial_recognition_technology.pdf
In the first sentence, when the author says that the debate
“has reached a boiling point”, he means that the debate is
Q3503332
Inglês
Texto associado
Text I
Understanding bias in facial recognition technologies
Over the past couple of years, the growing debate around
automated facial recognition has reached a boiling point. As
developers have continued to swiftly expand the scope of these
kinds of technologies into an almost unbounded range of
applications, an increasingly strident chorus of critical voices has
sounded concerns about the injurious effects of the proliferation
of such systems on impacted individuals and communities. Critics
argue that the irresponsible design and use of facial detection and
recognition technologies (FDRTs) threaten to violate civil liberties,
infringe on basic human rights and further entrench structural
racism and systemic marginalisation. In addition, they argue that
the gradual creep of face surveillance infrastructures into every
domain of lived experience may eventually eradicate the modern
democratic forms of life that have long provided cherished means
to individual flourishing, social solidarity and human self-creation.
Defenders, by contrast, emphasise the gains in public safety,
security and efficiency that digitally streamlined capacities for
facial identification, identity verification and trait characterisation
may bring. These proponents point to potential real-world benefits
like the added security of facial recognition enhanced border
control, the increased efficacy of missing children or criminal
suspect searches that are driven by the application of brute force
facial analysis to largescale databases and the many added
conveniences of facial verification in the business of everyday life.
Whatever side of the debate on which one lands, it would
appear that FDRTs are here to stay.
Adapted from: understanding_bias_in_facial_recognition_technology.pdf
In the last sentence, the author states that facial detection and
recognition technologies
Q3503331
Inglês
Texto associado
Text I
Understanding bias in facial recognition technologies
Over the past couple of years, the growing debate around
automated facial recognition has reached a boiling point. As
developers have continued to swiftly expand the scope of these
kinds of technologies into an almost unbounded range of
applications, an increasingly strident chorus of critical voices has
sounded concerns about the injurious effects of the proliferation
of such systems on impacted individuals and communities. Critics
argue that the irresponsible design and use of facial detection and
recognition technologies (FDRTs) threaten to violate civil liberties,
infringe on basic human rights and further entrench structural
racism and systemic marginalisation. In addition, they argue that
the gradual creep of face surveillance infrastructures into every
domain of lived experience may eventually eradicate the modern
democratic forms of life that have long provided cherished means
to individual flourishing, social solidarity and human self-creation.
Defenders, by contrast, emphasise the gains in public safety,
security and efficiency that digitally streamlined capacities for
facial identification, identity verification and trait characterisation
may bring. These proponents point to potential real-world benefits
like the added security of facial recognition enhanced border
control, the increased efficacy of missing children or criminal
suspect searches that are driven by the application of brute force
facial analysis to largescale databases and the many added
conveniences of facial verification in the business of everyday life.
Whatever side of the debate on which one lands, it would
appear that FDRTs are here to stay.
Adapted from: understanding_bias_in_facial_recognition_technology.pdf
Based on Text I, analyze the assertions below:
I. Critics are concerned about the pervasiveness of facial recognition technology.
II. Facial recognition systems may reduce the efficiency and security of border control.
III. Some argue that the new technology could undermine the stability of modern democracy.
Choose the correct answer:
Q3503330
Português
Os vocábulos abaixo aparecem acentuados, mas um deles está acentuado de forma incorreta.
Assinale a opção em que esse vocábulo aparece.
Q3503329
Português
As frases a seguir trazem nomes de especialidades médicas.
Assinale a frase cuja especialidade tem seu objeto corretamente
definido.
Q3503328
Português
Assinale a frase em que há erro no emprego do acento grave
indicativo da crase.
Q3503327
Português
Assinale a frase em que “um/uma” é classificado como numeral e
não como artigo.
Q3503326
Português
Assinale a frase a seguir em que a troca de posição entre
substantivo e adjetivo provoca modificação de sentido.
Q3503325
Português
Assinale a frase em que a expressão “graças a” está empregada de
forma adequada.
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