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Assinale a alternativa que preenche corretamente a frase acima.
Dados:
I- Coeficiente de atrito estático entre a caixa e o assoalho, μe = 0,62
II- Coeficiente de atrito cinético entre a caixa e o assoalho, μc = 0,48
III- Constante elástica da mola, k = 100 N/m
IV- Módulo da aceleração da gravidade, g = 10 m/s2
Seja f:IR → IR definida por
Se f(1) = 1 e f(-1) = 8, então _________.
Seja o hexágono regular ABCDEF, de lado medindo 4 cm. Assim, BF = _______ cm.
What’s your sign?
Neil J. Anderson
Thousands of years ago, the ancient people of Babylon and Egypt studied the stars in the sky and created the zodiac. It was first used to keep track of time. Later, many used the stars to describe a person’s personality and to say what would happen in the future. A person’s zodiac sign is connected to his or her birth date. Some believe this sign can tell us about a person’s personality.(...) In Asia, a person’s blood type is also used to describe personality. People with the blood type A are calm and serious, but they can be selfish. Type Bs are independent but can be lazy. ABs are honest, and type Os are loving and talkative. Not everybody believes that your blood type or birth sign describes your personality. In fact, some people disapprove of using the zodiac; they say it is just foolishness. (...)
Active Skills for Reading, 2nd Edition, Student Book 1.
According to the text, write T for true and F for false to the statements related to the zodiac. After, choose the alternative with the right sequence.
( ) It was originally created to reveal the future. ( ) It is linked to the day a person was born. ( ) It is considered silly by some people. ( ) It was created to name the stars.
According to the chart, write T for true and F for false, then choose the right alternative.
( ) Even if people wanted to help, there wouldn’t be much they could do.
( ) People help when they don’t purchase goods made out of animals’ fur.
( ) Few people believe education is the main key to help endangered animals.
( ) Many people believe that giving some of your time to work for charities help endangered animals.
Choose the alternative that best substitutes the words “turned upside down” in the picture below.