Questões - ESPCEX 2018 | Gabarito e resoluções

(EsPCEx - 2018)No ano de 2018, os alunos da EsPCEx realizaram, na aula prtica de laboratrio de qumica, um estudo sobre revestimento de materiais por meio da eletrlise com eletrodos ativos, visando ao aprendizado de mtodos de proteo contra corroso. Nesse estudo, eles efetuaram, numa cuba eletroltica, o cobreamento de um prego, utilizando uma soluo de sulfato de cobre II e um fio de cobre puro como contra-eletrodo. Para isso, utilizaram uma bateria como fonte externa de energia, com uma corrente contnua de intensidade constante de 100 mA e gastaram o tempo de 2 minutos. Considerando-se no haver interferncias no experimento, a massa aproximada de cobre metlico depositada sobre o prego foi de Dados: massa molar do cobre = 64 gmol-1; 1 Faraday = 96500 Cmol-1

(EsPCEx - 2018) Observe o esquema topogrfico a seguir: A partir da anlise e interpretao do esquema, correto afirmar que : I - A poro norte a mais favorvel ao emprego da mecanizao agrcola. II - As menores altitudes esto localizadas na poro nordeste do esquema. III - As encostas mais ngremes e, portanto, mais sujeitas aos processos erosivos so observadas margem esquerda do rio. IV - A jusante do rio encontra-se na direo oeste do esquema V - A distncia real entre os pontos X e Y traados no esquema de 15 km. Assinale a alternativa em que todas as afirmativas esto corretas.

(EsPCEx - 2018) Em 1834, numa tentativa de harmonizar as diversas foras em conflito no Pas, grupos polticos, como o dos moderados, promoveram uma reforma na Constituio do Imprio, mediante a promulgao do Ato Adicional. Observe os enunciados abaixo. I. Criao do Conselho de Estado. II. Criao das Assembleias Legislativas provinciais. III. A regncia deixava de ser trina para se tornar una. IV. Fundao do Clube da Maioridade. Assinale a opo em as afirmativas esto relacionadas ao Ato Adicional.

(EsPCEx - 2018) Many graduates earn paltry returns for their degree Mr Halfon, a former skills minister, stated in his speech that the nation has become obsessed _____________ (1) full academic degrees. We are creating a higher education system that overwhelmingly favours academic degrees, while intermediate and higher technical offerings are comparatively tiny. The labour market does not need ever-growing supply of academic degrees. Between a fifth and a third of our graduates take non-graduate jobs. The extra return for having a degree varies wildly according to subject and institution. For many, the returns are paltry. Mr Halfon said that there is a strong need for intermediate skills. There are skills shortages in several sectors. And there are millions ______________ (2) people who want to get on in life preferably without spending 50,000 on academic degrees, he added. There has been growing concern about the amount of debt students are accumulating and the interest being charged on that debt. A spokesman for UUK (a representative organisation for the UKs universities) said: Official figures are clear that, on average, university graduates continue to earn substantially more than non-graduates and are more likely to be in employment. A university degree remains an excellent investment. We must, however, be careful to avoid using graduate salaries as the single measure of success in higher education. Many universities specialise in fields such ____________(3) the arts, the creative industries, nursing and public sector professions that, despite making an essential contribution to society and the economy, pay less on average. Adapted from http://www.bbc.co.uk/news/education-42923529 According to the text, read the statements and choose the correct alternative. I. Fifty percent of the graduates take non-graduate jobs. II. Having a degree doesnt necessarily mean having great salaries. III. The labour market lacks intermediate skills. IV. Many people would rather not spend 50,000 on academic degrees. V. In every single case, university graduates make more money than non-graduates.

(EsPCEx -2018) Um motor tem uma potncia total igual a 1500 W e eleva de 15 m um volume de 9*104 Lde gua de um poo artesiano durante 5 horas de funcionamento. O rendimento do motor, nessa operao, de Dados: considere a acelerao da gravidade igual a 10 m/s e a densidade da gua igual a 1 kg/L

(EsPCEx - 2018) Marque a alternativa que mostra a voz passiva pronomial.

(EsPCEx - 2018) Analise a tabela a seguir referente participao das regies brasileiras no valor da transformao industrial: Tendo por base as caractersticas da industrializao brasileira e considerando os dados apresentados na tabela, correto afirmar que : I - a partir da dcada de de 1970, constata-se a perda de participao da Regio Sudeste no valor total da produo industrial do Pas, como reflexo direto do desvio dos investimentos empresariais para novas localizaes, longe das chamadas deseconomias de aglomerao daquela Regio. II - o significativo aumento do valor da produo industrial da Regio Centro-Oeste pode ser explicado pela migrao de indstrias de bens de capital de So Paulo, em busca de vantagens econmicas de produo nessa Regio. III - empresas inovadores de alta tecnologia reforaram sua concentrao industrial na Regio Sudeste, especialmente no estado de So Paulo, tendo em vista estarem ligadas aos centros de pesquisas avanadas, fundamentais garantia de competitividade nos mercados interno e externo. IV - a indstria automobilstica tem s destacado no cenrio da desconcentraoespacial no Pas, buscando condies mais competitivas de produo, principalmente nas Regies Norte e Nordeste, que apresentam menores custos de mo de obra. Assinale a alternativa em que todas as afirmativas esto corretas.

(EsPCEx - 2018) O incio do perodo republicano no Brasil foi marcado por uma srie de conflitos que culminaram com a revoluo de 1930, que levou Getlio Vargas ao poder. Abaixo esto listados atos e fatos relacionados a nossa histria. I- Modelo econmico agroexportador. II- Comisso Verificadora de Poderes. III- Possibilidade do Presidente nomear Interventores estaduais. IV- Criao da Consolidao das Leis Trabalhistas. Assinale a opo que apresenta elementos relacionados Primeira Repblica

(EsPCEx- 2018)Com relao s ondas, so feitas as seguintes afirmaes I. As ondas mecnicas propagam-se somente em meios materiais. II. As ondas eletromagnticas propagam-se somente no vcuo. III. As micro-ondas so ondas que se propagam somente em meios materiais. Das afirmaes acima est(o) correta(s) apenas a(s)

(EsPCEx - 2018) O nmero de razes reais da equaono intervalo

(EsPCEx - 2018) The photography exercise book by Bert Krages Training your eye to shoot like a pro A while ago I was asked if Id like to have a look at Bert )(rages book. My initial thought was that it would pretty much be a list of try this exercises. Well in a way it is, in that you really need to go out and try the exercises, not just read about them. In much the same way that my piano playing wont Improve by just buying more books about playing the piano... Try the technical exercises - a desk lamp and an egg really can teach you an enormous amount about the realties of lighting, shadows and reflected light. Ive been a pro photographer since 2004 and taking the time to do some of the exercises has been of real benefit. A well-written book that is packed with useful images to illustrate the matters at hand. Its nice to see the author didnt fall into the trap of only including perfect photos - you will look at some and think I could do better than that - good! Its a book for people who want to take more photos and increase their satisfaction from doing so. Definitely one to try if you feel youre perhaps clinging to some of the technical aspects of photography as a bit of a safety blanket, to avoid the fluffy artsy stuff. Book Author Info. Bert Krages is a photographer and attorney who is the author of two previous photography books, Legal Handbook for Photographers and Heavenly Bodies: The Photographers Guide to Astrophotography. What kind of text is this?

(EsPCEx - 2018) O estudo da velocidade das reaes muito importante para as indstrias qumicas, pois conhec-la permite a proposio de mecanismos para uma maior produo. A tabela abaixo apresenta os resultados experimentais obtidos para um estudo cintico de uma reao qumica genrica elementar. Experimento [A] [B] [C] Velocidade (mol.l-1.s-1) 1 0,10 0,10 0,10 4.10-4 2 0,20 0,10 0,10 8.10-4 3 0,10 0,20 0,10 8.10-4 4 0,10 0,10 0,20 1,6.10-3 A partir dos resultados experimentais apresentados na tabela, pode se afirmar que a expresso da equao da lei da velocidade (V) para essa reao qumica

(EsPCEx - 2018)A reao de combusto completa do etanol (C2H5OH) produz gs carbnico (CO2) e gua (H2O). Dada a tabela abaixo, de calores de formao das espcies qumicas, e considerando a reao de combusto completa desse lcool, so feitas as seguintes afirmativas: Composto Hfo(kJ.mol-1) (25 C, 1 atm) C2H5OH (l) -278 CO2(g) -394 H2O (l) -286 I - O agente oxidante dessa reao o O2. II - O coeficiente estequiomtrico da gua, aps o balanceamento da equao, 2. III - Considerando a densidade do etanol 0,8 g/ml (25 C, 1 atm), a combusto completa de 1150 ml desse composto libera aproximadamente 27360 kJ. IV - A quantidade de calor liberada na combusto de 1 mol de etanol de 278 kJ.mol-1. Das afirmativas feitas, esto corretas apenas

(EsPCEx -2018) A figura mostra um esboo do grfico da funo, com a e b reais, , a1 e b0. Ento, o valor de igual a:

(EsPCEx-2018) The photography exercise book by Bert Krages Training your eye to shoot like a pro A while ago I was asked if Id like to have a look at Bert )(rages book. My initial thought was that it would pretty much be a list of try this exercises. Well in a way it is, in that you really need to go out and try the exercises, not just read about them. In much the same way that my piano playing wont Improve by just buying more books about playing the piano... Try the technical exercises - a desk lamp and an egg really can teach you an enormous amount about the realties of lighting, shadows and reflected light. Ive been a pro photographer since 2004 and taking the time to do some of the exercises has been of real benefit. A well-written book that is packed with useful images to illustrate the matters at hand. Its nice to see the author didnt fall into the trap of only including perfect photos - you will look at some and think I could do better than that - good! Its a book for people who want to take more photos and increase their satisfaction from doing so. Definitely one to try if you feel youre perhaps clinging to some of the technical aspects of photography as a bit of a safety blanket, to avoid the fluffy artsy stuff. Book Author Info. Bert Krages is a photographer and attorney who is the author of two previous photography books, Legal Handbook for Photographers and Heavenly Bodies: The Photographers Guide to Astrophotography. What is the question the author refers to when he says: ...I was asked if Id like to have a look at Bert Krages book.? (paragraph 1).