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What is the reason that we burn out our ...

What is the reason that we burn out our body fat only when we walk briskly? Why does normal walking not burn out the same amount of body fat when the distance covered remains the same?

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When we walk slowly, the muscles in our body are not in a hurry, so they burn the calories slowly, i.e., the power, rate at which energy is required, is less. So burning carbohydrates in blood would be sufficient to produce this power. When we run, our body requires more power, and so to meet the energy requirement at this rate, the muscles burn the fats as blood sugar cannot meet the needs. Fats can release more energy. So when we run, we burn the fat calories, which is our aim in dieting.
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When we pick up a newspaper, a book, or an article, we come to our task with certain preconceptions and predispositions. We expect to find a specific piece of information or be presented with an argument or an analysis of something, say, the likelihood of recession in the next six months or the reasons why children can't read. We probably know a little about the book or article we are reading even before we start. There was, after all, some reason why we chose to read one piece of writing rather than another. Our expectations and predispositions may, however, blind us to what the article and its author is actually saying. If, for example, we are used to disagreeing with the author, we may see only what we expect to see and not what is actually there. Day after day in our routine pattern of life we expose ourselves to the same newspaper, the same magazine, even books by authors with the same perspectives. In order to reflect on our reading habits and improve our skills we need to break out of this routine, step back and look at what we are doing when we read. According to the author, which one of the following statements is not true?

When we pick up a newspaper, a book, or an article, we come to our task with certain preconceptions and predispositions. We expect to find a specific piece of information or be presented with an argument or an analysis of something, say, the likelihood of recession in the next six months or the reasons why children can't read. We probably know a little about the book or article we are reading even before we start. There was, after all, some reason why we chose to read one piece of writing rather than another. Our expectations and predispositions may, however, blind us to what the article and its author is actually saying. If, for example, we are used to disagreeing with the author, we may see only what we expect to see and not what is actually there. Day after day in our routine pattern of life we expose ourselves to the same newspaper, the same magazine, even books by authors with the same perspectives. In order to reflect on our reading habits and improve our skills we need to break out of this routine, step back and look at what we are doing when we read. Which word in the passage means 'viewpoints'?

CENGAGE PHYSICS-WORK, POWER & ENERGY-Exercise 8.2
  1. The kinetic energy of an object depends on the frame of reference in w...

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  2. You are reshelving books in a library. You lift a book from the floor ...

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  3. What is the reason that we burn out our body fat only when we walk bri...

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  4. Figure shows three paths connecting points a and b, A single force F d...

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  5. The potential energy of a conservative force field is given by U=ax^...

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  6. A particle moves in x-y plane in figure under the influence of a frict...

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  7. A single conservative force acting on a particle varies as vecF=(-Ax+B...

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  8. A potential energy function for a two-dimensional force is the form U=...

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  9. For the potential energy curve shown in figure. (a) Determine whethe...

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  10. Is it possible exert a force which does work on a body without changin...

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  11. The kinetic friction force acting on a sliding body moving in a straig...

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  12. A single conservative force acting on a particle varies as vecF=(-Ax+B...

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  13. A block of mass m is placed at the bottom of a massless smooth wedge w...

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  14. A particle is projected in gravity with a speed v0. Using W-E theorem,...

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  15. A block is released from rest from a height h=5m. After travelling thr...

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  16. A block of mass m is connected with a rigid wall by light spring of st...

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  17. Two blocks of masses m1 and m2 inter connected by a spring of stiffnes...

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  18. A ball of mass m is thrown in air with speed v(1) from a height h(1) a...

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  19. A spring block system is placed on a rough horizontal surface having c...

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  20. Find the maximum energy stored in the spring shown in figure, for whic...

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