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Q1937064 Física

FÍSICA


Nas questões de Física, quando necessário, utilize:

• aceleração da gravidade: g = 10 m/s2

• cos 30º = sen 60º = √3 /2

• cos 60º = sen 30º = 1 2

• calor específico da água: c = 1 cal/(g·ºC)

• calor latente de fusão do gelo: Lf = 80 cal/g

• temperatura de fusão do gelo: θf = 0 ºC

• densidade do gelo: µg = 0,92 g/cm3

• densidade da água: µA = 1,0 g/cm

Duas partículas, A e B, se movem, em sentidos opostos, em uma mesma trajetória.
No instante t0 = 0, a partícula A inicia do repouso e da origem dos espaços um movimento uniformemente variado, e a partícula B passa pela posição 3,0 m com velocidade constante, permanecendo em movimento uniforme.
No instante t = 2 s, as duas partículas, A e B, se encontram, tendo a partícula B percorrido uma distância igual a duas vezes a distância percorrida pela partícula A, conforme indica figura a seguir:
Imagem associada para resolução da questão
Nessas condições, a velocidade da partícula A, em m/s, no momento em que as partículas se encontram, é igual a 


Alternativas
Q1937057 Inglês

Directions: Read Text V and answer the question accordingly.


(SUMMER, Bernard; GILBERT, Gillian; HOOK, Peter; MORRIS, Stephen. Lyrics to Love Vigilantes, performed by New Order, Low Life CD, track 1, Universal Music Publishing Group, 1986. Taken from https://lyricfind.com)

The following sentence shows an instance of colloquial language:
Alternativas
Q1937050 Inglês

Directions: Read Text II and answer question 03 accordingly.


TEXT II

Imagem associada para resolução da questão


The extract above

Alternativas
Q1937049 Inglês

Directions: Look at the chart in Text I. Read the transcript and answer the question.


TEXT I


Transcript:

Q: To what extent, if at all, do you feel that your generation will have had a better or worse life than your parent’s generation, or will it be about the same?

Key: Better

Total

Great Britain



The verb tense used in your generation will have had a better or worse life
Alternativas
Q1901496 Química
Constantes
Constante de Avogadro (NA) = 6,02 x 1023 mol-1
Constante de Faraday (F) = 9,65 x 104 C.mol-1 = 9,65 x104 A.s.mol-1 = 9,65 x 104 J.V-1mol-1
Carga elementar = 1,60 x 10-19 C
Constante dos gases (R) = 8,21 x 10-2 atm.L.K-1.mol-1 = 8,31 J.K-1.mol-1 = 1,98 cal.K-1.mol-1
Constante de Planck (h) = 6,63 x 10-34 J.s
Velocidade da luz no vácuo = 3,0 x 108 m.s-1
Número de Euler (e) = 2,72 

Definições
Pressão: 1 atm = 760 mmHg = 1,01325 x 105 N.m-2 = 1,01325 bar
Energia: 1 J = 1 N.m = 1 kg.m2.s-2 = 6,24 x 1018 eV
Condições normais de temperatura e pressão (CNTP): 0 ºC e 1 atm
Condições ambientes: 25 ºC e 1 atm
Condições padrão: 1 bar; concentração das soluções = 1 mol.L-1 (rigorosamente: atividade unitária das espécies); sólido com estrutura cristalina mais estável nas condições de pressão e temperatura em questão. (s) = sólido. (ℓ) = líquido. (g) = gás. (aq) = aquoso. (conc) = concentrado. (ua) = unidades arbitrárias.
u.m.a. = unidade de massa atômica. [X] = concentração da espécie química X em mol.L-1
ln X = 2,3 log X
EPH = eletrodo padrão de hidrogênio 

Massas Molares


Considere a estrutura de Lewis de um tricloreto. São feitas as seguintes afirmações a respeito da estrutura geométrica da molécula e a possível identidade do átomo X:
I. A molécula adota uma estrutura trigonal plana, com ângulo de ligação Cl-X-Cl maior ou igual a 120°.
II. A molécula adota uma estrutura tetraédrica, com ângulo de ligação Cl-X-Cl maior que 109,5°.
III. O átomo “X” pode ser o nitrogênio, preservando a geometria molecular. IV. O átomo “X” pode ser o boro, preservando a geometria molecular.
Assinale a opção que contém a(s) afirmação(ões) CORRETA(S): 
Imagem associada para resolução da questão
Alternativas
Q1901469 Matemática
Convenções: Consideramos o sistema de coordenadas cartesiano a menos que haja indicação contrária.
N = {1, 2, 3, . . . } : denota o conjunto dos números naturais.
R : denota o conjunto dos números reais.
C : denota o conjunto dos números complexos.
i : denota a unidade imaginária, i2 = −1.
Mn(R) : denota o conjunto das matrizes n × n de entradas reais.
: denota o segmento de reta de extremidades nos pontos A e B.
 : denota o ângulo formado pelas semi-retas  e , com vértice no ponto O.
 : denota o comprimento do segmento .
Considere um triângulo de vértices A, B e C, retângulo em B. Seja r a reta determinada por A e C e seja O um ponto equidistante de A e C no mesmo lado que B com respeito a r. Sabendo que Imagem associada para resolução da questão = 85, Imagem associada para resolução da questão = 10 e Imagem associada para resolução da questão = 24 temos que a distância de O a r é
Alternativas
Q1901467 Inglês
Leia o texto destacado para responder à questão.

Meritocracy has become a leading social ideal. Politicians across the ideological spectrum continually return to the theme that the rewards of life—money, power, jobs, university admission—should be distributed according to skill and effort. The most common metaphor is the ‘even playing field’ upon which players can rise to the position that fits their merit. Conceptually and morally, meritocracy is presented as the opposite of systems such as hereditary aristocracy, in which one’s social position is determined by the lottery of birth. Under meritocracy, wealth and advantage are merit’s rightful compensation, not the fortuitous windfall of external events. And most people don’t just think the world should be run meritocratically, they think it is meritocratic. However, although widely held, the belief that merit rather than luck determines success or failure in the world is demonstrably false. This is not least because merit itself is, in large part, the result of luck. Talent and the capacity for determined effort, sometimes called ‘grit’, depend a great deal on one’s genetic endowments and upbringing.
Perhaps more disturbing, simply holding meritocracy as a value seems to promote discriminatory behaviour. The management scholar Emilio Castilla at the Massachusetts Institute of Technology and the sociologist Stephen Benard at Indiana University studied attempts to implement meritocratic practices, such as performance-based compensation in private companies. They found that, in companies that explicitly held meritocracy as a core value, managers assigned greater rewards to male employees over female employees with identical performance evaluations. This preference disappeared where meritocracy was not explicitly adopted as a value.
This is surprising because impartiality is the core of meritocracy’s moral appeal. The ‘even playing field’ is intended to avoid unfair inequalities based on gender, race and the like. Yet  Castilla and Benard found that, ironically, attempts to implement meritocracy leads to just the kinds of inequalities that it aims to eliminate. They suggest that this ‘paradox of meritocracy’ occurs because explicitly adopting meritocracy as a value convinces subjects of their own moral sincerity. Satisfied that they are just, they become less inclined to examine their own behaviour for signs of prejudice.
As with any ideology, part of its draw is that it justifies the status quo, explaining why people belong where they happen to be in the social order. It is a well-established psychological principle that people prefer to believe that the world is just.

Fonte: https://bigthink.com/. Publicado em 23/03/2019. Acesso em 20/08/2021. Adaptado.
De acordo com o quarto parágrafo, a meritocracia promove 
Alternativas
Q1901466 Inglês
Leia o texto destacado para responder à questão.

Meritocracy has become a leading social ideal. Politicians across the ideological spectrum continually return to the theme that the rewards of life—money, power, jobs, university admission—should be distributed according to skill and effort. The most common metaphor is the ‘even playing field’ upon which players can rise to the position that fits their merit. Conceptually and morally, meritocracy is presented as the opposite of systems such as hereditary aristocracy, in which one’s social position is determined by the lottery of birth. Under meritocracy, wealth and advantage are merit’s rightful compensation, not the fortuitous windfall of external events. And most people don’t just think the world should be run meritocratically, they think it is meritocratic. However, although widely held, the belief that merit rather than luck determines success or failure in the world is demonstrably false. This is not least because merit itself is, in large part, the result of luck. Talent and the capacity for determined effort, sometimes called ‘grit’, depend a great deal on one’s genetic endowments and upbringing.
Perhaps more disturbing, simply holding meritocracy as a value seems to promote discriminatory behaviour. The management scholar Emilio Castilla at the Massachusetts Institute of Technology and the sociologist Stephen Benard at Indiana University studied attempts to implement meritocratic practices, such as performance-based compensation in private companies. They found that, in companies that explicitly held meritocracy as a core value, managers assigned greater rewards to male employees over female employees with identical performance evaluations. This preference disappeared where meritocracy was not explicitly adopted as a value.
This is surprising because impartiality is the core of meritocracy’s moral appeal. The ‘even playing field’ is intended to avoid unfair inequalities based on gender, race and the like. Yet  Castilla and Benard found that, ironically, attempts to implement meritocracy leads to just the kinds of inequalities that it aims to eliminate. They suggest that this ‘paradox of meritocracy’ occurs because explicitly adopting meritocracy as a value convinces subjects of their own moral sincerity. Satisfied that they are just, they become less inclined to examine their own behaviour for signs of prejudice.
As with any ideology, part of its draw is that it justifies the status quo, explaining why people belong where they happen to be in the social order. It is a well-established psychological principle that people prefer to believe that the world is just.

Fonte: https://bigthink.com/. Publicado em 23/03/2019. Acesso em 20/08/2021. Adaptado.
According to the third and fourth paragraphs, researchers at the Massachusetts Institute of Technology and Indiana University found that meritocracy 
Alternativas
Q1901465 Inglês
Leia o texto destacado para responder à questão.

Meritocracy has become a leading social ideal. Politicians across the ideological spectrum continually return to the theme that the rewards of life—money, power, jobs, university admission—should be distributed according to skill and effort. The most common metaphor is the ‘even playing field’ upon which players can rise to the position that fits their merit. Conceptually and morally, meritocracy is presented as the opposite of systems such as hereditary aristocracy, in which one’s social position is determined by the lottery of birth. Under meritocracy, wealth and advantage are merit’s rightful compensation, not the fortuitous windfall of external events. And most people don’t just think the world should be run meritocratically, they think it is meritocratic. However, although widely held, the belief that merit rather than luck determines success or failure in the world is demonstrably false. This is not least because merit itself is, in large part, the result of luck. Talent and the capacity for determined effort, sometimes called ‘grit’, depend a great deal on one’s genetic endowments and upbringing.
Perhaps more disturbing, simply holding meritocracy as a value seems to promote discriminatory behaviour. The management scholar Emilio Castilla at the Massachusetts Institute of Technology and the sociologist Stephen Benard at Indiana University studied attempts to implement meritocratic practices, such as performance-based compensation in private companies. They found that, in companies that explicitly held meritocracy as a core value, managers assigned greater rewards to male employees over female employees with identical performance evaluations. This preference disappeared where meritocracy was not explicitly adopted as a value.
This is surprising because impartiality is the core of meritocracy’s moral appeal. The ‘even playing field’ is intended to avoid unfair inequalities based on gender, race and the like. Yet  Castilla and Benard found that, ironically, attempts to implement meritocracy leads to just the kinds of inequalities that it aims to eliminate. They suggest that this ‘paradox of meritocracy’ occurs because explicitly adopting meritocracy as a value convinces subjects of their own moral sincerity. Satisfied that they are just, they become less inclined to examine their own behaviour for signs of prejudice.
As with any ideology, part of its draw is that it justifies the status quo, explaining why people belong where they happen to be in the social order. It is a well-established psychological principle that people prefer to believe that the world is just.

Fonte: https://bigthink.com/. Publicado em 23/03/2019. Acesso em 20/08/2021. Adaptado.
According to the first paragraph, one of the supporting arguments for meritocracy is:  
Alternativas
Q1901464 Inglês
Leia o texto destacado para responder à questão.

In a new survey of North American Indian languages, Marianne Mithun gives an admirably clear statement of what is lost as each language ceases to be used. “Speakers of these languages and their descendants are acutely aware of what it can mean to lose a language,” she begins – and this is perfectly true, although these speakers must have taken the decision themselves not to teach the language to their children. It happens all too often – people regret that their language and culture are being lost but at the same time decide not to saddle their own children with the chore of preserving them.
When a language disappears [Mithun continues] the most intimate aspects of culture can disappear as well: fundamental ways of organizing experience into concepts, of relating ideas to each other, of interacting to people. The more conscious genres of verbal art are usually lost as well: traditional ritual, oratory, myth, legends, and even humor. Speakers commonly remark that when they speak a different language, they say different things and even think different thoughts. These are very interesting assertions. They slip by in a book on anthropological linguistics, where in a book on linguistic theory they would be highly contentious. Is it true that “fundamental ways of organizing experience into concepts [and] of relating ideas to each other” are specific to individual languages and are therefore likely to be lost when a language ceases to be used? Is it true that when speakers speak a different language, they “say different things and even think different thoughts”? Again, the extent to which thought depends on language is very controversial. These questions must be now faced, because only when we have reached an opinion on them will we be able to accept or reject Marianne Mithun’s conclusion: “The loss of a language represents a definitive separation of a people from its heritage. It also represents an irreparable loss for us all, the loss of opportunities to glimpse alternative ways of making sense of the human experience.”

Fonte: Dalby, Andrew. Language in danger. New York: Columbia University Press, 2003, p. 252; 285. Adaptado.  
De acordo com o texto, é correto afirmar que com o desaparecimento de uma língua, aspectos dessa cultura também estão fadados ao desaparecimento, exceto 
Alternativas
Q1901463 Inglês
Leia o texto destacado para responder à questão.

In a new survey of North American Indian languages, Marianne Mithun gives an admirably clear statement of what is lost as each language ceases to be used. “Speakers of these languages and their descendants are acutely aware of what it can mean to lose a language,” she begins – and this is perfectly true, although these speakers must have taken the decision themselves not to teach the language to their children. It happens all too often – people regret that their language and culture are being lost but at the same time decide not to saddle their own children with the chore of preserving them.
When a language disappears [Mithun continues] the most intimate aspects of culture can disappear as well: fundamental ways of organizing experience into concepts, of relating ideas to each other, of interacting to people. The more conscious genres of verbal art are usually lost as well: traditional ritual, oratory, myth, legends, and even humor. Speakers commonly remark that when they speak a different language, they say different things and even think different thoughts. These are very interesting assertions. They slip by in a book on anthropological linguistics, where in a book on linguistic theory they would be highly contentious. Is it true that “fundamental ways of organizing experience into concepts [and] of relating ideas to each other” are specific to individual languages and are therefore likely to be lost when a language ceases to be used? Is it true that when speakers speak a different language, they “say different things and even think different thoughts”? Again, the extent to which thought depends on language is very controversial. These questions must be now faced, because only when we have reached an opinion on them will we be able to accept or reject Marianne Mithun’s conclusion: “The loss of a language represents a definitive separation of a people from its heritage. It also represents an irreparable loss for us all, the loss of opportunities to glimpse alternative ways of making sense of the human experience.”

Fonte: Dalby, Andrew. Language in danger. New York: Columbia University Press, 2003, p. 252; 285. Adaptado.  
O termo “must”, destacado em itálico no excerto do segundo parágrafo, “These questions must be now faced”, pode ser substituído, sem alteração de significado, por 
Alternativas
Q1901462 Inglês
Leia o texto destacado para responder à questão.

In a new survey of North American Indian languages, Marianne Mithun gives an admirably clear statement of what is lost as each language ceases to be used. “Speakers of these languages and their descendants are acutely aware of what it can mean to lose a language,” she begins – and this is perfectly true, although these speakers must have taken the decision themselves not to teach the language to their children. It happens all too often – people regret that their language and culture are being lost but at the same time decide not to saddle their own children with the chore of preserving them.
When a language disappears [Mithun continues] the most intimate aspects of culture can disappear as well: fundamental ways of organizing experience into concepts, of relating ideas to each other, of interacting to people. The more conscious genres of verbal art are usually lost as well: traditional ritual, oratory, myth, legends, and even humor. Speakers commonly remark that when they speak a different language, they say different things and even think different thoughts. These are very interesting assertions. They slip by in a book on anthropological linguistics, where in a book on linguistic theory they would be highly contentious. Is it true that “fundamental ways of organizing experience into concepts [and] of relating ideas to each other” are specific to individual languages and are therefore likely to be lost when a language ceases to be used? Is it true that when speakers speak a different language, they “say different things and even think different thoughts”? Again, the extent to which thought depends on language is very controversial. These questions must be now faced, because only when we have reached an opinion on them will we be able to accept or reject Marianne Mithun’s conclusion: “The loss of a language represents a definitive separation of a people from its heritage. It also represents an irreparable loss for us all, the loss of opportunities to glimpse alternative ways of making sense of the human experience.”

Fonte: Dalby, Andrew. Language in danger. New York: Columbia University Press, 2003, p. 252; 285. Adaptado.  
De acordo com a linguista Marianne Mithun  
Alternativas
Q1901461 Inglês
Leia o texto destacado para responder à questão.

Jaap Wagelaar was my all-time favorite secondary school teacher. He gave me a 10/10 for my oral Dutch literature exam, taught psychoanalysis during grammar class, astounded pupils with odd puppet show performances during lunch breaks and sadly ended his career with a burn-out. Few students and fellow teachers understood him. But since I trusted his judgment like nobody else’s, I once asked him why Piet Paaltjens and Gerard Reve, both canonized Dutch literary figures, albeit of very divergent genres, could occasionally be kind or ironic but were more often rather cynical, cold and heartless. The response he gave has stuck with me ever since: cynical people are in fact the most emotional ones. Because of their sentimentality they are unable to handle injustice and feel forced to build up a self-protective screen against painful emotions called cynicism. Irony is mild, harmless and green. Sarcasm is biting and represents an orange traffic light. And the color of cynicism is deep red, with the shape of a grim scar that hides a hurt soul. They are all equally beautiful. 
These words again came to my mind when thinking back on the dozens of ironic, sarcastic and cynical memes about underperforming politicians and policy scandals disseminated over the past year. Who has not seen the image of Donald Trump walking through a desolate, scorched forest mumbling to himself: ‘My work here is almost done’? Who has not read the scathing reports of Flemish Ministers Bart Somers and Hilde Crevits escaping from a window aided by an unidentified third person after a meeting of the Council of Ministers to avoid critical journalists with the defense that they urgently needed to go on holiday and windows are faster than doors? Who has not come across the video announcement for a fictitious thriller called Angstra Zeneca with Dutch Health Minister Hugo de Jonge exclaiming ‘ik heb er zo’n kankerbende van gemaakt’ (I have made it all a cancerous mess) with a grimace stretching from ear to ear? And who has missed the most recent true story tragicomedy played by Charles Michel, male President of the European Council, and Ursula von der Leyen, female President of the European Commission, who had jointly been invited by Turkish President Recep Tayyip Erdogan to discuss the position of women in Turkey? Unfortunately, they were only offered one chair for two people, which was symbolically occupied by Michel who left Von der Leyen standing awkwardly for a while. She ended up settling for a place on the comfortable sofa reserved for second rank guests. It was damned easy to get addicted to these countless videos, photos, images and written parodies. Oh, did we have fun with them! Some were ironic, some sarcastic and others cynical, but they jointly sketch a disconcerting image of the quality and reputation of key politicians in liberal Western democracies.

Fonte: https://www.eur.nl/en/news/. Publicado em 16/04/2021. Acesso em 29/08/21. Adaptado.  
Em um encontro para discutir a posição da mulher, o anfitrião 
Alternativas
Q1901460 Inglês
Leia o texto destacado para responder à questão.

Jaap Wagelaar was my all-time favorite secondary school teacher. He gave me a 10/10 for my oral Dutch literature exam, taught psychoanalysis during grammar class, astounded pupils with odd puppet show performances during lunch breaks and sadly ended his career with a burn-out. Few students and fellow teachers understood him. But since I trusted his judgment like nobody else’s, I once asked him why Piet Paaltjens and Gerard Reve, both canonized Dutch literary figures, albeit of very divergent genres, could occasionally be kind or ironic but were more often rather cynical, cold and heartless. The response he gave has stuck with me ever since: cynical people are in fact the most emotional ones. Because of their sentimentality they are unable to handle injustice and feel forced to build up a self-protective screen against painful emotions called cynicism. Irony is mild, harmless and green. Sarcasm is biting and represents an orange traffic light. And the color of cynicism is deep red, with the shape of a grim scar that hides a hurt soul. They are all equally beautiful. 
These words again came to my mind when thinking back on the dozens of ironic, sarcastic and cynical memes about underperforming politicians and policy scandals disseminated over the past year. Who has not seen the image of Donald Trump walking through a desolate, scorched forest mumbling to himself: ‘My work here is almost done’? Who has not read the scathing reports of Flemish Ministers Bart Somers and Hilde Crevits escaping from a window aided by an unidentified third person after a meeting of the Council of Ministers to avoid critical journalists with the defense that they urgently needed to go on holiday and windows are faster than doors? Who has not come across the video announcement for a fictitious thriller called Angstra Zeneca with Dutch Health Minister Hugo de Jonge exclaiming ‘ik heb er zo’n kankerbende van gemaakt’ (I have made it all a cancerous mess) with a grimace stretching from ear to ear? And who has missed the most recent true story tragicomedy played by Charles Michel, male President of the European Council, and Ursula von der Leyen, female President of the European Commission, who had jointly been invited by Turkish President Recep Tayyip Erdogan to discuss the position of women in Turkey? Unfortunately, they were only offered one chair for two people, which was symbolically occupied by Michel who left Von der Leyen standing awkwardly for a while. She ended up settling for a place on the comfortable sofa reserved for second rank guests. It was damned easy to get addicted to these countless videos, photos, images and written parodies. Oh, did we have fun with them! Some were ironic, some sarcastic and others cynical, but they jointly sketch a disconcerting image of the quality and reputation of key politicians in liberal Western democracies.

Fonte: https://www.eur.nl/en/news/. Publicado em 16/04/2021. Acesso em 29/08/21. Adaptado.  
O termo “albeit”, destacado em itálico no excerto do primeiro parágrafo, “both canonized Dutch literary figures albeit of very divergent genres”, tem sentido equivalente a 
Alternativas
Q1901459 Inglês
Leia o texto destacado para responder à questão.

 Stupidity permeates our perception and practice of politics. We frequently accuse politicians, bureaucrats, journalists, voters, “elites,” and “the masses” for their stupidities. In fact, it is not only “populist politicians,” “sensational journalism,” and “uneducated voters” who are accused of stupidity. Similar accusations can be, and in fact have been, made concerning those who criticize them as well. It seems that stupidity is ubiquitous, unable to be contained within or attributed to one specific political position, personal trait, or even ignorance and erroneous reasoning.
Undertaking a theoretical investigation of stupidity, Nabutaka Otobe challenges the assumption that stupidity can be avoided. The author argues that the very ubiquity of stupidity implies its unavoidability — that we cannot contain it in such domains as error, ignorance, or “post-truth.” What we witness is rather that one’s reasoning can be sound, evidence-based, and stupid. In revealing this unavoidability, he contends that stupidity is an ineluctable problem not only of politics, but also of thinking. We become stupid because we think: it is impossible to distinguish a priori stupid thought from upright, righteous thought. Moreover, the failure to address the unavoidability of stupidity leads political theory to the failure to acknowledge the productive moments that experiences of stupidity harbor within. Such productive moments constitute the potential of stupidity — that radical new ideas can emerge out of our seemingly banal and stupid thinking in our daily political activity.

Fonte: https://www.routledge.com/. Publicado em 12/10/2020. Acesso em 20/08/2021.
O termo “moreover”, destacado em itálico no excerto do segundo parágrafo, “Moreover, the failure to address the unavoidability of stupidity leads political theory to the failure”, pode ser substituído, sem prejuízo de significado, por
Alternativas
Q1901458 Inglês
Leia o texto destacado para responder à questão.

 Stupidity permeates our perception and practice of politics. We frequently accuse politicians, bureaucrats, journalists, voters, “elites,” and “the masses” for their stupidities. In fact, it is not only “populist politicians,” “sensational journalism,” and “uneducated voters” who are accused of stupidity. Similar accusations can be, and in fact have been, made concerning those who criticize them as well. It seems that stupidity is ubiquitous, unable to be contained within or attributed to one specific political position, personal trait, or even ignorance and erroneous reasoning.
Undertaking a theoretical investigation of stupidity, Nabutaka Otobe challenges the assumption that stupidity can be avoided. The author argues that the very ubiquity of stupidity implies its unavoidability — that we cannot contain it in such domains as error, ignorance, or “post-truth.” What we witness is rather that one’s reasoning can be sound, evidence-based, and stupid. In revealing this unavoidability, he contends that stupidity is an ineluctable problem not only of politics, but also of thinking. We become stupid because we think: it is impossible to distinguish a priori stupid thought from upright, righteous thought. Moreover, the failure to address the unavoidability of stupidity leads political theory to the failure to acknowledge the productive moments that experiences of stupidity harbor within. Such productive moments constitute the potential of stupidity — that radical new ideas can emerge out of our seemingly banal and stupid thinking in our daily political activity.

Fonte: https://www.routledge.com/. Publicado em 12/10/2020. Acesso em 20/08/2021.
De acordo com o texto, não é correto afirmar que  
Alternativas
Q1901448 Português
Leia atentamente, à esquerda, a primeira estrofe de “Morte do leiteiro”, da seção “NA PRAÇA DE CONVITES”. Em seguida, assinale a alternativa CORRETA.
 Há pouco leite no país, é preciso entregá-lo cedo. Há muita sede no país, é preciso entregá-lo cedo. Há no país uma legenda, que ladrão se mata com tiro. 
Alternativas
Q1901441 Física
Se necessitar, use os seguintes valores para as constantes:

Aceleração local da gravidade g = 10 m/s2. 1 UA = dTerra−Sol = 150 milhões de quilômetros.
Velocidade da luz no vácuo c = 3,0×108 m/s. 
Considere um solenoide muito longo com n1 voltas por unidade de comprimento e raio a. Situado no lado externo do solenoide, há outro solenoide de comprimento L, com n2 voltas por unidade de comprimento e raio b (b > a). Metade do solenoide externo possui resistividade ρ1 e a outra metade ρ2. Os fios que compõem o solenoide possuem uma área transversal A e seus terminais estão ligados em curto. A corrente que passa pelo solenóide interno varia linearmente com o tempo, I = I0t. Desprezando a auto-indutância dos solenoides, a corrente induzida no solenóide externo pode ser escrita por 
Imagem associada para resolução da questão
Alternativas
Q1901439 Física
Se necessitar, use os seguintes valores para as constantes:

Aceleração local da gravidade g = 10 m/s2. 1 UA = dTerra−Sol = 150 milhões de quilômetros.
Velocidade da luz no vácuo c = 3,0×108 m/s. 
Considere o movimento de um objeto de massa m = 1,0 g, positivamente carregado, com carga q = 20,0 µC, na presença do campo gravitacional da superfície terrestre, g, e de um campo eletromagnético dado por
Imagem associada para resolução da questão

em que B = 1,00 T, Ex = 100 N/C e Ez = 800 N/C. O eixo z corresponde à direção vertical para cima. Sabendo que a partícula partiu da origem do sistema de coordenada com velocidade ~v, escrita em termos de suas componentes paralela e perpendicular a Imagem associada para resolução da questão, ou seja, Imagem associada para resolução da questão, sendo Imagem associada para resolução da questão 2,0 m/s e Imagem associada para resolução da questão = 1,0 m/s, calcule o tempo necessário para ela atingir a posição z = 1,0 m. 
Alternativas
Q1901436 Física
Se necessitar, use os seguintes valores para as constantes:

Aceleração local da gravidade g = 10 m/s2. 1 UA = dTerra−Sol = 150 milhões de quilômetros.
Velocidade da luz no vácuo c = 3,0×108 m/s. 
Muitos instrumentos musicais, como o piano, geram sons a partir da excitação de cordas com extremidades fixas. Ao pressionar uma tecla do piano, um dispositivo mecânico percute uma corda tensionada, produzindo uma onda sonora. O som produzido pelo piano em um determinado instante de tempo é captado e a sua decomposição espectral ´e fornecida no gráfico a seguir, à respeito do qual são feitas três sentenças.
I. Para gerar um espectro sonoro dessa natureza é necessário acionar 5 teclas do piano.
II. A velocidade de propagação de cada nota no ar é proporcional à sua frequência característica.
III. A frequência fundamental da corda, sujeita a uma tensão T, é inversamente proporcional `a sua densidade linear de massa.
Assinale a alternativa correta.
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Alternativas
Respostas
1341: C
1342: A
1343: D
1344: B
1345: E
1346: E
1347: A
1348: E
1349: B
1350: D
1351: C
1352: B
1353: C
1354: B
1355: A
1356: C
1357: B
1358: A
1359: A
1360: A