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Why do you press against the door

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Question: 1. Is the net torque changed when a partner on a seesaw stands or hangs from her end instead of sitting? (Does the weight or the lever arm change?)Essay answers are limited to about 500 words (3800 characters maximum, including spaces)

2. When you are in the front passenger seat of a car turning to the left, you may find yourself pressed against the right-side door. Why do you press against the door? Why does the door press on you? Does your explanation involve a centrifugal force, or Newton's laws?Essay answers are limited to about 500 words (3800 characters maximum, including spaces)

If the polar ice caps of Earth were to melt, the oceans would be deeper. Strictly speaking, what effect would this have on Earth's rotation?Essay answers are limited to about 500 words (3800 characters maximum, including spaces)

3. An apple falls because of the gravitational attraction to Earth. How does the gravitational attraction of Earth to the apple compare? (Does force change when you interchange m1 and m2 in the equation for gravity - m2 m1 instead of m1 m2 ?)Essay answers are limited to about 500 words (3800 characters maximum, including spaces)

4. Earth and the Moon are attracted to each other by gravitational force. Does the more massive Earth attract the less massive Moon with a force that is greater, smaller, or the same as the force with which the Moon attracts Earth? (With an elastic band stretched between your thumb and forefinger, which is pulled more strongly by the band, your thumb or your forefinger?)Essay answers are limited to about 500 words (3800 characters maximum, including spaces)

5. A heavy crate accidentally falls from a high-flying airplane just as it flies directly above a shiny red Porsche smartly parked in a car lot. Relative to the Porsche, where will the crate crash?Essay answers are limited to about 500 words (3800 characters maximum, including spaces)

6. At which of the indicated positions does the satellite in elliptical orbit experience the greatest gravitational force? Have the greatest speed? The greatest velocity? The greatest momentum? The greatest kinetic energy? The greatest gravitational potential energy? The greatest total energy? The greatest angular momentum? The greatest acceleration?Essay answers are limited to about 500 words (3800 characters maximum, including spaces)

Reference no: EM132190894

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