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Romashka [77]
3 years ago
11

What is the “cosmic haystack problem”? List as many of its components as you can think of.

Physics
1 answer:
shepuryov [24]3 years ago
8 0

Answer:

About the universe, The problem isn't just that the sky has billions of stars to search but there are also billions of frequencies.

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How might the temperatures on Mercury be different if it had the same mass as Earth?
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Answer:

well, mercury is the closest planet to the sun, making it MUCH hotter than earth. that being said, just because mercury is closest to the sun, it doesnt mean its the hottest planet.

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3 years ago
What pressure expressed in pascals equals 70 N/m2?
12345 [234]
Pascals = N/m2
so it is the same unit
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3 years ago
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Explain the benefits of understanding sound waves properties in real life.
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The vibrations from sound waves cause our ears to send signals to our brains to create sound. The speed of sound waves will determine the sound's pitch, or how high or low something sounds. Sound waves are important because they allow us to hear important messages and emergency signals to protect ourselves.

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I hope this helps :)

4 0
3 years ago
Two charged particles are a distance of 1.62 m from each other. One of the particles has a charge of 7.10 nc, and the other has
k0ka [10]

Answer:

A. F=107.6nN

B. Repulsive

Explanation:

According to coulombs law, the force between two charges is express as

F=(Kq1q2) /r^2

If the charges are of similar charge the force will be repulsive and if they are dislike charges, force will be attractive.

Note the constant K has a value 9*10^9

Hence for a charge q1=7.10nC=7.10*10^-9, q2=4.42*10^-9 and the distance r=1.62m

If we substitute values we have

F=[(9×10^9) ×(7.10×10^-9) ×(4.42×10^-9)] /(1.62^2)

F=(282.4×10^-9)/2.6244

F=107.6×10^-9N

F=107.6nN

B. Since the charges are both positive, the force is repulsive

8 0
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What are the characteristics of an index fossil?
vichka [17]
I think as a mold. when the Flood came in Genesis, i believe that when the fish were washed away, the kinda made a mold in a rock.
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