Questões de histã³ria - UNESP | Gabarito e resoluções

(UNESP - 2006) Com a frase Grupo concebe tomo mgico de silcio, a edio de 18.06.2005 da Folha de S. Paulo chama a ateno para a notcia da produo de tomos estveis de silcio com duas vezes mais nutrons do que prtons, por cientistas da Universidade Estadual da Flrida, nos Estados Unidos da Amrica. Na natureza, os tomos estveis deste elemento qumico so: 14Si28 14Si29 e 14Si30. Quantos nutrons h em cada tomo mgico de silcio produzido pelos cientistas da Flrida?

(Unesp 2006) Considere o polinômio p(x) = x3 + bx2 + cx + d, onde b, c e d são constantes reais. A derivada de p(x) é, por definição, o polinômio p'(x) = 3x2 + 2bx + c. Se p'(1) = 0, p'(-1) = 4 e o resto da divisão de p(x) por x - 1 é 2, então o polinômio p(x) é:

(Unesp 2006) Uma espira, locomovendo-se paralelamente ao solo e com velocidade constante, atravessa uma região onde existe um campo magnético uniforme, perpendicular ao plano da espira e ao solo. O fluxo magnético registrado, a partir do instante em que a espira entra nessa região até o instante de sua saída, é apresentado no gráfico da figura. Analisando o gráfico, pode-se dizer que a força eletromotriz induzida, em volts, no instante t = 0,2 s, é

(Unesp 2006) Terrorism The term "terrorism" is controversial and has many definitions, none of which are universally accepted. The Oxford English Dictionary defines terrorism as "a policy intended to strike with terror those against whom it is adopted; the employment of methods of intimidation; the fact of terrorizing or condition of being terrorized". It is almost always used in a pejorative sense, to describe the violence of an enemy as being immoral or wanton. No known group describes itself as "terrorist". Theories on the causes of terrorism include: - sociological explanations which focus on the position of the perpetrators in society - conflict theory which includes their relationship to those in power - ideological explanations which focus on the differences in ideology, and the different goals of the ideologies - media theory explanations which treat terrorist acts as a form of communication Some anti-terrorist commentators refuse to consider the causes, since that implies justification. For them, the terrorists are simply evil people. Some theories of the ethics of terrorism also exist, and they too are concerned with moral judgment on terrorism and specific actions. They do not attempt to explain its origins. They often treat terrorism as a form of warfare, and refer to the just war theory, and to war crimes law. (http://en.wikipedia.org/wiki/Terrorism) Indique a alternativa que preenche corretamente a sentença: "If some anti-terrorist commentators ................ the causes of terrorism, they ................ justifications for it".

(Unesp 2006) Um gás ideal, confinado no interior de um pistão com êmbolo móvel, é submetido a uma transformação na qual seu volume é reduzido à quarta parte do seu volume inicial, em um intervalo de tempo muito curto. Tratando-se de uma transformação muito rápida, não há tempo para a troca de calor entre o gás e o meio exterior. Pode-se afirmar que a transformação é

(Unesp 2006) A figura representa, no plano complexo, um semicírculo de centro na origem e raio 1. Indique por Re(z), Im(z) e a parte real, a parte imaginária e o módulo de um número complexo z = x + yi, respectivamente, onde i indica a unidade imaginária. A única alternativa que contém as condições que descrevem totalmente o subconjunto do plano que representa a região sombreada, incluindo sua fronteira, é

(UNESP 2006) Um estudante recebeu nove cartões, cada um apresentando uma característica ou o nome de uma estrutura presente em diferentes grupos de plantas (fig. 1). Sua tarefa era formar dois grupos de três cartões, de modo que no grupo I fossem incluídos apenas cartões com características ou estruturas encontradas em briófitas e, no grupo II, apenas cartões com características ou estruturas encontradas em angiospermas. Assinale a alternativa que apresenta possibilidades de formar corretamente os grupos I e II.

(UNESP - 2006) Seja TC a temperatura em graus Celsius e TF a mesma temperatura em graus Fahrenheit. Essas duas escalas de temperatura esto relacionadas pela equao 9TC = 5TF -160. Considere agora TK a mesma temperatura na escala Kelvin. As escalas Kelvin e Celsius esto relacionadas pela equao TK = TC + 273. A equao que relaciona as escalas Fahrenheit e Kelvin :

(UNESP -2006) Qual das molculas apresentadas possui frmula mnima diferente das demais?

(Unesp 2005) Em um jogo eletrônico, o monstro tem a forma de um setor circular de raio 1 cm, como mostra a figura. A parte que falta no círculo é a boca do monstro, e o ângulo de abertura mede 1 radiano. O perímetro do monstro, em cm, é:

(UNESP- 2005) Texto 1: Teen depression Depression is defined as an illness when the feelings of sadness, hopelessness, and despair persist and interfere with a child or adolescents ability to function. Though the term depression can describe a normal human emotion, it also can refer to a mental health illness. Depressive illness in children and teens is defined when the feelings of depression persist and interfere with a child or adolescents ability to function. Depression is common in teens and younger children. About 5 percent of children and adolescents in the general population suffer from depression at any given point in time. Children under stress, who experience loss, or who have attentional, learning, conduct or anxiety disorders are at a higher risk for depression. Teenager girls are at especially high risk, as are minority youth. Depressed youth often have problems at home. In many cases, the parents are depressed, as depression tends to run in families. Over the past 50 years, depression rises, so does the teen suicide rate. It is important to remember that the behavior of depressed children and teenagers may differ from the behavior of depressed adults. The characteristics vary, with most children and teens having additional psychiatric disorders, such as behavior disorders or substance abuse problems. Mental health professionals advise parents to be aware of signs of depression in their children. Some of these signs may be: frequent sadness, tearfulness, crying; hopelessness; decreased interest in activities or inability to enjoy previously favorite activities; persistent boredom; low energy; social isolation; poor communication; poor concentration; extreme sensitivity to rejection or failure, and increased irritability, anger, or hostility; among others. (Extrado de: www.focusas.com/Depression.html) Texto 2: Adolescent Depression: Helping depressed teens Its not unusual for young people to experience the blues or feel down in the dumps occasionally. Adolescence is always an unsetting time, with the many physical, emotional, psychological and social changes that accompany this stage of life. Unrealistic academic, social, or family expectations can create a strong sense of rejections and can lead to deep disappointment. When things go wrong at schools or at home, teens often overreact. Many young people feel that life is not fair or that things never go their way. They feel stressed out and confused. To make matters worse, teens are bombarded by conflicting messages from parents, friends and society. Todays teens see more of what life has to offer - both good and bad - on television, at school, in magazines and on the Internet. They are also forced to learn about the threat of AIDS, even if they are not sexually active or using drugs. Teens need adult guidance more than ever to understand all the emotional and physical changes they are experiencing. When teens moods disrupt their ability to function on a day-to-day basis, it may indicate a serious emotional or mental disorder that needs attention - adolescent depression. Parents or caregivers must take action. Depressions can be difficult to diagnose in teens because adults may expect teens to act moody. Also, adolescents do not always understand or express their feelings very well. They may not be aware of the symptoms of depression and may not seek help. (Extrado de www.nmha.org/infoctr/factsheets/24.cfm) De acordo com o texto 1, indique a alternativa que expressa o mesmo significado da expresso em destaque na sentena: It is important to remember that THE BEHAVIOR OF DEPRESSED CHILDREN may change.

(Unesp 2005) Em 05 de junho de 2004, foi inaugurada uma pizzaria que só abre aos sábados. No dia da inauguração, a pizzaria recebeu 40 fregueses. A partir daí, o número de fregueses que passaram a frequentar a pizzaria cresceu em progressão aritmética de razão 6, até que atingiu a cota máxima de 136 pessoas, a qual tem se mantido. O número de sábados que se passaram, excluindo-se o sábado de inauguração, para que a cota máxima de fregueses fosse atingida pela primeira vez, foi:

(UNESP) Na Amaznia, segundo o Instituto Nacional de Pesquisas Espaciais (INPE), nos ltimos quinze anos foram desmatados 243.393 km2, o que representa 5% da rea total da Amaznia Legal. Observe os trs quadros, que representam trs etapas do processo de ocupao da Amaznia. Assinale a alternativa que contm a sucesso correta destas etapas.

Nos quadrinhos da tira, a mãe menciona as fases da água conforme a mudança das estações. Entendendo boneco de neve como sendo boneco de gelo e que com o termo evaporou a mãe se refira à transição água - vapor, pode-se supor que ela imaginou a sequência gelo - água - vapor - água.

(UNESP - 2005) Texto 1 Teen depression Depression is defined as an illness when the feelings of sadness, hopelessness, and despair persist and interfere with a child or adolescents ability to function. Though the term depression can describe a normal human emotion, it also can refer to a mental health illness. Depressive illness in children and teens is defined when the feelings of depression persist and interfere with a child or adolescents ability to function. Depression is common in teens and younger children. About 5 percent of children and adolescents in the general population suffer from depression at any given point in time. Children under stress, who experience loss, or who have attentional, learning, conduct or anxiety disorders are at a higher risk for depression. Teenager girls are at especially high risk, as are minority youth. Depressed youth often have problems at home. In many cases, the parents are depressed, as depression tends to run in families. Over the past 50 years, depression rises, so does the teen suicide rate. It is important to remember that the behavior of depressed children and teenagers may differ from the behavior of depressed adults. The characteristics vary, with most children and teens having additional psychiatric disorders, such as behavior disorders or substance abuse problems. Mental health professionals advise parents to be aware of signs of depression in their children. Some of these signs may be: frequent sadness, tearfulness, crying; hopelessness; decreased interest in activities or inability to enjoy previously favorite activities; persistent boredom; low energy; social isolation; poor communication; poor concentration; extreme sensitivity to rejection or failure, and increased irritability, anger, or hostility; among others. (Extrado de: www.focusas.com/Depression.html) Texto 2 Adolescent Depression: Helping depressed teens Its not unusual for young people to experience the blues or feel down in the dumps occasionally. Adolescence is always an unsetting time, with the many physical, emotional, psychological and social changes that accompany this stage of life. Unrealistic academic, social, or family expectations can create a strong sense of rejections and can lead to deep disappointment. When things go wrong at schools or at home, teens often overreact. Many young people feel that life is not fair or that things never go their way. They feel stressed out and confused. To make matters worse, teens are bombarded by conflicting messages from parents, friends and society. Todays teens see more of what life has to offer - both good and bad - on television, at school, in magazines and on the Internet. They are also forced to learn about the threat of AIDS, even if they are not sexually active or using drugs. Teens need adult guidance more than ever to understand all the emotional and physical changes they are experiencing. When teens moods disrupt their ability to function on a day-to-day basis, it may indicate a serious emotional or mental disorder that needs attention - adolescent depression. Parents or caregivers must take action. Depressions can be difficult to diagnose in teens because adults may expect teens to act moody. Also, adolescents do not always understand or express their feelings very well. They may not be aware of the symptoms of depression and may not seek help. (Extrado de www.nmha.org/infoctr/factsheets/24.cfm) De acordo com o texto 2, indique a alternativa que expressa o mesmo sentido da expresso em destaque na sentena: Parents and caregivers have to try to help teenagers when they FEEL DEPRESSED.