Uma pedra de 2,0 kg está deslizando a 5 m/s da esquerda para a direita sobre uma superfície horizontal sem atrito, quando é repentinamente atingida por um objeto que exerce uma grande força horizontal sobre ela, na mesma direção e sentido da velocidade, por um curto intervalo de tempo. O gráfico a seguir representa o módulo dessa força em função do tempo.

Imediatamente após a força cessar, o módulo da velocidade da pedra vale em m/s: 

(CFTMG) No triângulo ABC da figura a seguir, MN/ /BC e a medida de AC é igual a 30 cm. Sabe-se que o ponto M dista 8 cm do vértice B, que AB mede 2/3 da medida de AC e que a medida de BC vale a metade da medida de AC.

O perímetro do triângulo AMN da figura, mede, em cm:

Relacione os tipos de células do tecido ósseo com suas respectivas funções, numerando a Coluna II de acordo com a Coluna I.

Coluna I

1. Osteócitos.

2. Osteoblastos.

3. Osteoclastos.

Coluna II

(     ) Produção da região orgânica da matriz óssea.

(     ) Reabsorção óssea.

(     ) Manutenção da matriz óssea.

A sequência correta, de cima para baixo, é: 

 Desertos

Em alguns desertos, a temperatura durante o dia pode atingir os 50 °C, mas, durante a noite, pode cair para abaixo de zero.

Deserto é o nome usado para designar uma região quase desabitada e desprovida de água da chuva ou de rios. Essas regiões abrigam seres vivos, apesar de muitos imaginarem que não, pois não são encontrados em períodos diurnos em razão das temperaturas muito elevadas.

Grande parte das paisagens desérticas não possui solo, quando existem são extremamente pobres. Geralmente, as superfícies de áreas com tais características são arenosas, pedregosas ou rochosas.

Desertos. Disponível em: <http://mundoeducacao.bol.uol.com.br/geografia/deserto.htm>.

Acesso em: 2 fev. 2017. Adaptado.

Com base nas informações do texto e em seus conhecimentos, os desertos apresentam como características

(UERJ) The Genre of Autobiography and Autofiction

Derived from three Greek words meaning “self”, “life” and “write”, autobiography is a style of writing that has been around nearly as long as history has been recorded. Yet, autobiography was not classified as a genre within itself until the late eighteenth century.

In his book, Inside out, E. Stuart Bates offers a functional definition of autobiography as “a narrative of the past of a person by the person concerned”. That definition, however, is too broad for some literary critics. Many, such as Philippe Lejeune, wish to define the genre more narrowly: “(a) retrospective prose narrative produced by a real person concerning his own existence, focusing on his individual life, in particular on the development of his personality”.

Despite disagreements concerning how inclusive the category of autobiography should be, there are characteristics that are common to the majority of autobiographical works. These features are the grammatical perspective of the work, the identity of the self, self-reflection and introspection.

Most autobiographies are written from the first person singular perspective. The author, the narrator and the protagonist must share a common identity for the work to be considered an autobiography. This common identity could be similar, but is not identical. The self that the author constructs becomes a character within the story that may not be a completely factual representation of the author’s actual past self.

In their book The voice within, Roger Porter and H. R. Wolf state that “truth is a highly subjective matter, and no autobiographer can represent exactly what happened back then, any more than a historian can definitively describe the real truth of the past”.

Because the author cannot describe events objectively, even the most accurate autobiographies have fictional elements. The blurring of fiction and truth characteristic of autobiography has even led to the creation of a subdivision within the genre of autobiography that deals with fictionalized self-accounts. For this style of writing that blends characteristics of both fiction and autobiography, Serge Doubrovsky coined the literary term “autofiction”.

The difference between traditional autobiography and the genre of autofiction is that autobiographers are attempting to depict their real life, while writers of autofiction are only basing their work upon real experiences. Writers of autofiction are not expected to be as historically accurate as possible as autobiographers are. According to Alex Hughes, authors of autofiction are saying “this is me and this is not me”. ¹This sums up autofiction. Autofiction draws from the life of the writer with the addition of fictional elements to make the work more than just a life story.

Autobiography is a popular genre. ²Writers of memoirs and life stories never lack an audience. People are interested in the actual lives of others and want to know about others’ pasts and feelings and desires. Autobiography is a way to organize the story of a life and reflect on the past in order to better understand the present.

hubpages.com

Writers of memoirs and life stories never lack an audience. People are interested in the actual lives of others (ref. 2)The semantic relationship between the two sentences above can be made explicit by the addition of following connective: