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4 years ago

Explain how the earth is round and not flat

2 answers:

8 0

Aristotle (who made quite a lot of observations about the spherical nature of the Earth) noticed that during lunar eclipses (when the Earth orbits places it directly between the sun and the moon, creating a shadow in the process), the shadow on the Moon's surface is round.

frosja888 [35]4 years ago

5 0

It is a conglomeration of rock that collected together over time, and it rotating in a spinning ball that is orbiting a sun that is in the middle of our solar system.

You should look at a picture of the earth from a satellite.<span />

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3 years ago

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timofeeve [1]

Answer: $v=-\frac{11}{3} m/s \left$

Explanation:

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3 years ago

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3 years ago

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djverab [1.8K]

Answer:

b) 252 Hz or 260 Hz

c) 0.25 s

Explanation:

b) The frequency of the beats is 4 Hz, and one tuning fork has a frequency of 256 Hz. Therefore, the second tuning fork is either 4 Hz lower or 4 Hz higher.

f = 252 Hz or 260 Hz

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