Dentre os acessórios femininos a bolsa sempre terá seu lugar de destaque, podendo agradas a todos os estilos e ocasiões. Um dos modelos mais utilizados é feita de couro com alças de outros materiais como as correntes de metal, como mostrado na figura.

Quando uma pessoa pendura a bolsa no ombro as alças formam com a horizontal um ângulo θ, cujo sen θ = 0,8 e cos θ = 0,6. Um fabricante informa que a carga máxima suportada pela bolsa é de 4 kg e que excedendo esse valor a alça pode arrebentar.

O material de construção da alça, se for esticado, suporta uma força máxima de intensidade

 Finally, Aisha finished with her customer and asked what colour Ifemelu wanted for her hair attachments.

“Colour four.”

“Not good colour,” Aisha said promptly.

“That’s what I use.”

“It look dirty. You don’t want colour one?”

“Colour one is too black, it looks fake,” Ifemelu said, loosening her headwrap. “Sometimes I use colour two, but colour four is closest to my natural colour.”

[...]

She touched Ifemelu’s hair. “Why you don’t have relaxer?”

“I like my hair the way God made it.”

“But how you comb it? Hard to comb,” Aisha said.

Ifemelu had brought her own comb. She gently combed her hair, dense, soft and tightly coiled, until it framed her head like a halo. “It’s not hard to comb if you moisturize it properly,” she said, slipping into the coaxing tone of the proselytizer that she used whenever she was trying to convince other black women about the merits of wearing their hair natural. Aisha snorted; she clearly could not understand why anybody would choose to suffer through combing natural hair, instead of simply relaxing it. She sectioned out Ifemelu’s hair, plucked a little attachment from the pile on the table and began deftly to twist.

ADICHIE, C. Americanah: A novel. New York: Anchor Books, 2013.

A passagem do romance da escritora nigeriana traz um diálogo entre duas mulheres negras: a cabeleireira, Aisha, e a cliente, Ifemelu. O posicionamento da cliente é sustentado por argumentos que

1          What is beauty? Define beauty? One may as well dissect a soap bubble. We know it when we see it - or so we think.

2          Philosophers define ¹it as a moral equation. What is beautiful is good, said Plato. Poets look for high standards. Beauty is truth, truth is beauty, wrote John Keats.

3          Science examines beauty and pronounces it a strategy. "Beauty is health", a psychologist tells me. "It's a sign saying 'I'm healthy and fertile. I can pass on your genes.'"

4          At its best, beauty celebrates. From the painted Txikão Indian in Brazil to Madonna in her metal bra, humanity likes to abandon its everyday look and masquerade as a more powerful, romantic, or sexy being.

5          At its worst, beauty discriminates. Studies suggest attractive people make more money, get more attention in class and are seen as ²friendlier. We do judge people by their looks. In an era of feminist and politically correct values, not to mention the belief that all men and women are created equal, the fact that all men and women are not - and that some are more beautiful than others - disturbs, confuses, ³even angers.

6          The search for beauty is ⁴costly. ⁷In the United States last year people spent six billion dollars ⁸on fragrance and another six billion on make up. In the mania to lose weight 20 billions were spent on diet products and services - in addition to the billions that were paid out for health club memberships and cosmetic surgery.

7          The sad, sometimes ugly side of beauty: In a 1997 magazine survey, 15 percent of women and 11 percent of men sampled said they'd sacrifice more than five years of their life to be at their ideal weight. According to one study, 80 percent of women are dissatisfied with their bodies. In one of its worst manifestations, discontent with one's body can wind up as an eating disorder, such as anorexia or bulimia. Both can be fatal. ⁵Today eating disorders, once mostly limited to wealthy Western cultures, occur around the world, in countries as different as Fiji, Japan and Argentina.

8          The preoccupation with beauty can be a neurosis, and yet there is something therapeutic about paying attention to how we look and feel. "People are so quick to say beauty is superficial", says Ann Marie Gardner, beauty director of "W" magazine. "They're fearful. They say: 'It doesn't have substance.' What many don't ⁶realize is that it's fun to reinvent yourself, as long as you don't take it too seriously". 

"Today" (ref.5) can be substituted by all the alternatives EXCEPT 

(UESC)

Para dificultar o trabalho de falsificadores, foi lançada uma nova família de cédulas do real. Com tamanho variável – quanto maior o valor, maior a nota – o dinheiro novo terá vários elementos de segurança. A estréia será entre abril e maio, quando começam a circular as notas de R$ 50,00 e R$ 100,00.

As cédulas atuais têm 14 cm de comprimento e 6,5 cm de largura. A maior cédula será a de R$ 100,00, com 1,6 cm a mais no comprimento e 0,5 cm maior na largura.

Disponível em: http://br.noticias.yahoo.com. Acesso em: 20 abr. 2010 (adaptado).

Quais serão as dimensões da nova nota de R$ 100,00?