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4vir4ik [10]
4 years ago
14

Arab cultures charted planets in the Dark Ages. Europeans helped establish the Sun-centered model of the solar system during the

Renaissance. Russia and the U.S.A have discovered new features on planets using spacecraft in modern times.
This is an example of
A.
many cultures arguing about how the solar system works and all of their contributions being worthless.

B.
cultures wasting time by doing the same thing over and over throughout history.

C.
how contributions by many different cultures throughout history have advanced our understanding of the solar system.

D.
modern technology proving that earlier cultures could not contribute to our understanding of the solar system.
Chemistry
1 answer:
lesya692 [45]4 years ago
7 0

Answer:

Its C how contributions by many different cultures throughout history have advanced our understanding of the solar system.

Explanation:

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Lady_Fox [76]

Answer: Spun yarn is made by twisting staple fibers together

To make a cohesive thread Or “single”. Twisting fibers, into yarn in the process called spinning can be dated back to the upper Paleolithic. Yarn spinning was one of the first processes to be industrialized.

Explanation:

4 0
3 years ago
Two spherical objects with a mass of 7.73 kg each are placed at a distance of 1.11 m apart. how many electrons need to leave eac
aliina [53]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Equate the gravitational force to the electrostatic force: 

<span>KC²/D² = Gm²/D² → C = m√[G/K] = 7.6√[6.67E-11/9E9] = 6.54E-10 coulombs </span>

<span>Number of electrons N = 6.24E18*C = 4.083E9 electrons</span>

4 0
3 years ago
10. The wavelength of the electromagnetic radiation is 270 nm. What is the energy of the
Vinvika [58]

Answer:sorry no idea

Explanation:

7 0
3 years ago
22.4 liters of a gas at a constant temperature of zero Celsius and a pressure of 1 atmosphere is compressed to a volume of 6.2 l
zhannawk [14.2K]
<h2>Hello!</h2>

The answer is: The new pressure of the gas is 3.6 atm.

<h2>Why?</h2>

From the statement we know that the gas is kept at a constant temperature of 0°C, so, if the gas keeps a constant temperature we can use the Boyle's Law to solve this problem.

The Boyle's Law states that:

P_{1}V_{1}=P_{2}V_{2}

Where,  

P is the pressure of the gas.

V is the volume of the gas.

So, the given information is:

V_{1}=22.4L\\P_{1}=1atm\\V_{2}=6.2L

Now, substituting it into the Boyle's Law equation to calculate the new pressure, we have:

P_{1}V_{1}=P_{2}V_{2}\\\\1atm*22.4L=P_{2}*6.2L\\\\P_{2}=\frac{1atm*22.4L}{6.2L}=3.6atm

So, the new pressure is 3.6 atm.

Have a nice day!

4 0
4 years ago
Is a Daisy a eukaryote or prokaryote
Kisachek [45]
A Daisy is eukaryote it is classified in the kingdom of Plantae which all plants are eukaryotic<span />
7 0
3 years ago
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