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Para completar minha obra, restava uma última tarefa: encontrar a lei que relaciona a distância do planeta ao Sol ao tempo que ele leva para completar sua órbita.
Por fim, já quase sem esperanças, tentei T2/D3. E funcionou! Essa razão é igual para todos os planetas! No início, pensei que se tratava de um sonho. Essa é a lei que tanto procurei, a lei que liga cosmo e mente, que demonstra que toda a Criação provém de Deus. Minha busca está encerrada.
(Apud Marcelo Gleiser. A harmonia do mundo, 2006. Adaptado.)
A lei mencionada no texto refere-se ao trabalho de um importante pensador, que viveu
Na ilustração abaixo, um objeto é solto do repouso de uma certa altura.
(Hewitt, Paul G. Física conceitual. Trad.Trieste Freire Ricci e Maria Helena Gravina.9 ed. Porto Alegre: Bookman, 2002.p.67.)
Sendo 
o peso do objeto e
a força de resistência do ar, constata-se que,
seráAlice Munro’s road to Nobel literature prize was not easy
Nobel literature prize winner Alice Munro.
Alice Munro has been awarded the 2013 Nobel Prize in literature, thus becoming its 13th female recipient. It’s a thrilling honour for a major writer: Munro has long been recognised in North America and the UK, but the Nobel will draw international attention, not only to women’s writing and Canadian writing, but to the short story, Munro’s chosen literary genre and one often neglected.
The road to the Nobel wasn’t an easy one for Munro. She found herself referred to as “some housewife”, and was told that her subject matter, being too “domestic”, was boring. A male writer told her she wrote good stories, but he wouldn’t want to sleep with her. “Nobody invited him,” said Munro. Maybe as a consequence of this initial reaction towards her, when writers occur in Munro stories, they are pretentious, or exploitative of others; or they’re being asked by their relatives why they aren’t famous, or – worse, if female – why they aren’t better-looking.
The chances that a literary star would emerge from her time and place would once have been zero. Munro was born in 1931, and thus experienced the Depression as a child and the Second World War as a teenager. This was in south-western Ontario, Canada, a region that also produced equally talented writers and poets such as Robertson Davies, Graeme Gibson, James Reaney, and Marian Engel. It’s this small-town setting that features most often in her stories – the snobberies, the eccentrics, and the jeering at ambitions, especially artistic ones.
Shame is a common driving force for Munro’s characters just as perfectionism in the writing and courage in her profession have been driving forces for her.
As in much else, Munro is essentially Canadian. Faced with the Nobel, she will be modest, she won’t get a swelled head. The rest of us, on this magnificent occasion, will just have to do that for her.
Para obter energia térmica, com a finalidade de fundir determinada massa de gelo, produziu-se a combustão de um mol de gás butano (C4H10), a 1 atm e a 25 ºC. A reação de combustão desse gás é:
C4H10 (g) +13/2 O2 (g)→ 4CO2 (g) + 5H2 O (l)
As entalpias-padrão de formação (ΔH) das substâncias citadas estão indicadas na tabela:
Considerando que a energia térmica proveniente dessa reação foi integralmente absorvida por um grande bloco de gelo
a 0 ºC e adotando 320 J/g para o calor latente de fusão do
gelo, a massa de água líquida obtida a 0 ºC, nesse processo,
pelo derretimento do gelo foi de, aproximadamente,
A sensibilidade visual de humanos e animais encontra-se dentro de uma estreita faixa do espectro da radiação eletromagnética, com comprimentos de onda entre 380 nm e 760 nm. É notável que os vegetais também reajam à radiação dentro desse mesmo intervalo, incluindo a fotossíntese e o crescimento fototrópico. A razão para a importância dessa estreita faixa de radiação eletromagnética é o fato de a energia carregada por um fóton ser inversamente proporcional ao comprimento de onda. Assim, os comprimentos de onda mais longos não carregam energia suficiente em cada fóton para produzir um efeito fotoquímico apreciável, e os mais curtos carregam energia em quantidade que danifica os materiais orgânicos.
(Knut Schmidt-Nielsen. Fisiologia animal: adaptação e meio ambiente, 2002. Adaptado.)
A tabela apresenta o comprimento de onda de algumas cores do espectro da luz visível:
Sabendo que a energia carregada por um fóton de frequência f é dada por E = h × f, em que h = 6,6 × 10–34 J·s, que a velocidade da luz é aproximadamente c = 3 × 108 m/s e que 1 nm = 10–9 m, a cor da luz cujos fótons carregam uma quantidade de energia correspondente a 3,96 × 10–19 J é
Alice Munro’s road to Nobel literature prize was not easy
Nobel literature prize winner Alice Munro.
Alice Munro has been awarded the 2013 Nobel Prize in literature, thus becoming its 13th female recipient. It’s a thrilling honour for a major writer: Munro has long been recognised in North America and the UK, but the Nobel will draw international attention, not only to women’s writing and Canadian writing, but to the short story, Munro’s chosen literary genre and one often neglected.
The road to the Nobel wasn’t an easy one for Munro. She found herself referred to as “some housewife”, and was told that her subject matter, being too “domestic”, was boring. A male writer told her she wrote good stories, but he wouldn’t want to sleep with her. “Nobody invited him,” said Munro. Maybe as a consequence of this initial reaction towards her, when writers occur in Munro stories, they are pretentious, or exploitative of others; or they’re being asked by their relatives why they aren’t famous, or – worse, if female – why they aren’t better-looking.
The chances that a literary star would emerge from her time and place would once have been zero. Munro was born in 1931, and thus experienced the Depression as a child and the Second World War as a teenager. This was in south-western Ontario, Canada, a region that also produced equally talented writers and poets such as Robertson Davies, Graeme Gibson, James Reaney, and Marian Engel. It’s this small-town setting that features most often in her stories – the snobberies, the eccentrics, and the jeering at ambitions, especially artistic ones.
Shame is a common driving force for Munro’s characters just as perfectionism in the writing and courage in her profession have been driving forces for her.
As in much else, Munro is essentially Canadian. Faced with the Nobel, she will be modest, she won’t get a swelled head. The rest of us, on this magnificent occasion, will just have to do that for her.
