Foram encontradas 125 questões.
Determine a freqüência, em kHz, do 5º harmônico de um tubo sonoro aberto de 40 cm de comprimento, contendo ar no seu interior, no qual o som se propaga com velocidade de 320 m/s.
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Se o ponto Q ( 2, 1) pertence à circunferência de equação x2 + y2 + 4x – 6y + k = 0, então o valor de k é
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Changing lifestyles and new eating habits
Americans today have different eating habits than they had in the past. There is a wide selection of food available. They have a broader knowledge of nutrition, so they buy more fresh fruit and vegetables than ever before. At the same time, Americans purchase increasing quantities of sweets, snacks and sodas.
Statistics show that the way people live determines the way they eat. The United States Department of Agriculture (USD
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Changing lifestyles and new eating habits
Americans today have different eating habits than they had in the past. There is a wide selection of food available. They have a broader knowledge of nutrition, so they buy more fresh fruit and vegetables than ever before. At the same time, Americans purchase increasing quantities of sweets, snacks and sodas.
Statistics show that the way people live determines the way they eat. The United States Department of Agriculture (USD
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When a man has children, the first thing he has to learn is that he is not the boss of the house. I am certainly not the boss of my house. There is no wisdom I can give new fathers more profound than what I have just said: you are not the boss of the house.
When one of the children comes to you and says, “ Dad, can I go explore the Upper Nile?” your answer must be “ Go and ask your mother”.
Only once did I make the great permission mistake.
One of the children came to me and said, “Dad, can I go out and play?”
“ Sure”, I replied. “I don’t see why not”.
That was the last time I couldn’t see why not. My wife came in and said, “Did you let that child go out?”
“ Yeah”, I said.
“Well, next time check with me. He’s being punished.”
From that day on I knew my place; and whenever a child starts to say, “ Dad, can I...” even though it is my name, I always reply, “
What did your mother say?”
And even if the child tells me that she got permission, I still say, “ Very fine. Just bring me a note from your mother. It doesn’t have to be notarized. A simple signature and date will do.”
Ironically, even though the father is not the boss of the house, the mother will try to use him as a threat: “ When your father comes home, he’s going to spank you. And this time I’m not going to stop him”.
According to the text, when a child asks for permission,
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