Foram encontradas 100 questões.
O motor de um guindaste em funcionamento, consome 1,0 kW para realizar um trabalho de 104 J, na elevação de um bloco de concreto durante 20 s. O rendimento deste motor é de
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A unidade de diferença de potencial (ddp) denomina-se Volt, uma homenagem ao físico italiano Alessandro Volta (1745–1827) que construiu a primeira pilha elétrica. No Sistema Internacional de Unidades (SI), uma ddp de 110 volts significa que para uma carga elétrica de 1 coulomb é (são) necessário(s) _____ de energia para desloca-la entre dois pontos, num campo elétrico.
Assinale a alternativa que completa corretamente a lacuna acima.
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Os resultados de uma pesquisa sobre os números de casos de AIDS entre consumidores de drogas injetáveis, no país X, nos últimos oito anos, foram apresentados em um gráfico, onde as colunas foram substituídas por seringas de tamanhos diferentes.
Este gráfico é um
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“Do not ride your bicycle around the corner”, the mother had told her daughter when she was seven.
“Why not!” protested the girl.
“Because then I cannot see you and you will fall down and cry and I will not hear you.”
“How do you know I’ll fall?” whined the girl.
“It is in a book, The Twenty-Six Malignant Gates, all the bad things that can happen to you outside the protection of this house.”
“I don’t believe you. Let me see the book.”
“It is written in Chinese. You cannot understand it.That is why you must listen to me.”
“What are they, then?” the girl demanded. “Tell me the twenty-six bad things.”
But the mother sat knitting in silence.
“What twenty-six!” shouted the girl.
The mother still did not answer her.
“You can’t tell me because you don’t know!You don’t know anything!” And the girl ran outside, jumped on her bicycle, and in her hurry to get away, she fell before she even reached the corner.
GLOSSARY:
to whine = lamentar-se, queixar-se
to knit = tricotar
According to the text, the mother
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Uma lanchonete tem em sua dispensa 5 espécies de frutas.
Misturando 3 espécies diferentes, pode-se preparar _____ tipos de suco.
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Uma onda se propaga de um meio para outro, constituindo o fenômeno da refração ondulatória. Pela experiência concluímos que neste fenômeno se mantém sem alteração o (a)
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Uma substância desconhecida apresenta densidade igual a 10 g/cm3. Qual o volume, em litros, ocupado por um cilindro feito dessa substância cuja massa é de 200 kg?
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I always wanted a car and thought that having one would make my life easier. I still remember the day I bought the car - my car! - and drove it home. It was the happiest day of my life... and then everything went wrong.
First of all, I got a ticket for speeding. I was so excited about driving my new car that I didn’t realize how fast I was going. Later, when I got home, there was nowhere to park on the street. I looked for parking for almost thirty minutes. Finally, I found a place – six blocks from my house! The next morning, I decided to drive to school. The traffic was terrible and I was fifteen minutes late for class. All this happened in the first twenty-four hours of owning a car!
By the end of the first year, I was almost $2,000 in debt. I needed money for car payments, gas and insurance. It was crazy! In the end, I had to sell the car to pay my bills.
So what’s the moral of the story? If you don’t need a car, don’t buy one. It would be a terrible mistake!
Based on the text, we can conclude that
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Different ways of talking
Both Joy and Tommy are growing up in the culture of the United States. They are learning what it means to be a girl and a boy in this culture. Their sex at birth, female or male, is now becoming a gender – a way of thinking, speaking, and acting that is considered feminine or masculine. Each culture has its own way of defining gender, and very early in life gender becomes a basic part of a person’s identity.
In the United States and Canada, boys and girls usually play in the same sex groups. Boys play in large groups in which every boy knows his place.
Some are leaders; others are followers. Many boys like to get attention by boasting, or talking how well they can do things.
Girls, on the other hand, usually play in smaller groups. They may be interested in playing fairly and taking turns. For example, when jumping rope, the rope-holders always take their turn jumping.
Dr.Tannen, a professor at Georgetown University, has found that these differences are reflected in the ways that children use language while they play. Boys often use commands when they talk to each other while girls use the form “let’s” when they want to express their preferences, emphasizing the fact that all of them belong to the same group.
These differences seem to be part of growing up in the culture of the United States. If men and women can understand that many of their differences are cultural, not personal, they may be able to improve their relationships and understand that there is more than one way to communicate.
The suffix “_ er”, as in followers , means someone who does something, EXCEPT :
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Se !$ \begin {bmatrix} 2 \,\,\,\,\,\,\,\, 1 \\ 1 \,\, -1 \end {bmatrix} \, . \, \begin {bmatrix} x \\ y \end {bmatrix} \, = \, \begin {bmatrix} 6 \\ 0 \end {bmatrix} !$, então o valor de x + y é :
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