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1. Why are we not feeling Earth’s rotation while it is actually happening {1674.4 km/hr at the equator}?
2. Our sound varies while communicating through a telephone. Why?
3. Why is it more neat when we tear a sheet from the newspaper vertically and rough when torn horizontally?
4. Will we be able to see stars during day time on the moon?
5. Why do planets move in elliptical paths and not in circular ones?
6. At what depth do Jupiter quakes occur?

what is the difference between a atomic and a nuclear bomb?

what is crystal cleavage and what does it state about the nature of matter?

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1. instrument.santosh says:

Why are we not feeling Earth’s rotation while it is actually happening {1674.4 km/hr at the equator}?

a) well am not sure by your word “feel”. i think no physics term contain the word “feel” but anyway my intuition says that you mean “why dont we experience the force due to rotation” , this is analogous to a man sitting inside a “uniform velocity” bus, he would never feel that he is riding..this is again because to “feel” a force we need to get acclerated. but as we are in earth there is no relative motion between us and earth

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Our sound varies while communicating through a telephone. Why?

its electric signals that travels and not the original sound waves !
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Will we be able to see stars during day time on the moon?

this question has no meaning !..day time and night time are defined only for earth and not for moon! think!

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Why do planets move in elliptical paths and not in circular ones?

well, equating the basic newton gravity force with centripetal force, we would get the solution as either a circle or ellipse. this or comes from the fact that we integrate the equations. so to get the trajectory we need boundary conditions, so the initial arrangement of the entire universe made it give such a condition so that the equation fits for ellipse!
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