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Physics / Conceptual Physics 12 / Chapter 9 / Problem 98TAD

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

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Discuss and explain why this reasoning is wrong: “The Sun

Chapter 29, Problem 98TAD

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QUESTION:

Discuss and explain why this reasoning is wrong: “The Sun attracts all bodies on Earth. At midnight, when the Sun is directly below, it pulls on you in the same direction as Earth pulls on you; at noon, when the Sun is directly overhead, it pulls on you in a direction opposite to Earth’s pull on you. Therefore, you should be somewhat heavier at midnight and somewhat lighter at noon.”

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QUESTION:

Discuss and explain why this reasoning is wrong: “The Sun attracts all bodies on Earth. At midnight, when the Sun is directly below, it pulls on you in the same direction as Earth pulls on you; at noon, when the Sun is directly overhead, it pulls on you in a direction opposite to Earth’s pull on you. Therefore, you should be somewhat heavier at midnight and somewhat lighter at noon.”

ANSWER:

Step 1 of 2

The Sun's gravitational pull on us is so insignificant that, for example, for every of our mass we feel around of force because of the gravitational pull of Earth.

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