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lys-0071 [83]
3 years ago
13

Describe the sunspot cycle.

Geography
2 answers:
Arisa [49]3 years ago
3 0
The recurring increase and decrease in the number of sunspots over a period averaging about eleven years.
snow_tiger [21]3 years ago
3 0

Answer:

    Sunspots can be of various sizes. Some are very small and barely noticeable while others may be very large. Sunspots with a diameter of 50,000 kilometers have already been detected. In addition, studies on the sun's magnetic field have revealed that sunspots are regions of intense magnetic field. In some of them there were magnetic field intensities about 1,000 times higher than those normally detected in the sun.

    Sunspots are almost always present in the Sun. However, their continued observation showed astronomers that there was a cycle of 11.1 years, beginning, middle and end, in their formation process. It was Johann Rudolf Wolf (1816-1893), sunspots expert and historian of astronomy, who confirmed in 1848 that there was a cycle in the number of sunspots. It was also he who most precisely determined the duration of this cycle.

    The solar cycle, that is, the cyclical variation every eleven years observed in solar activity, has times of maximum and minimum of ACTIVITY. When the sun is going through the minimum of this cycle, the so-called “solar minimum”, the number of spots on its surface is practically zero. Theoretically, after five and a half years the sun reaches its peak of activity, the "maximum solar", and on its surface we can see up to 100 sunspots. In fact, the maximum and minimum periods of the solar cycle are not exactly symmetrical, so one of them may eventually last longer than the other.

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Analyze the zeros of f(x)=^4-3x^3-2x^2+3x-5
spayn [35]

Answer:

d.−1.4, 3.4

Explanation:

Given

f(x) = x^4-3x^3-2x^2+3x-5

Required

Determine the zeros

The best way to solve this is to apply the graphical method.

First, we plot the graph of: f(x) = x^4-3x^3-2x^2+3x-5

<em>See attachment </em>

Next, we write out all values of x when the line crosses the y-axis.

From the attached graph, the points are (approximately):

x =-1.449

x = 3.449

Option (d) is the closest to the above values.

<em>Hence, the zeros are: -1.4 and 3.4</em>

3 0
3 years ago
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Evgen [1.6K]

The correct answer is - B. Roman Catholicism.

The Spanish people, with their arrival and settling in Latin America, brought with them their culture as well, and one big part of their culture was their religion. They were practicing the Roman Catholicism, and still are, being one of the ''biggest believers'' in the Christian faith nowadays.

The Spanish encountered multiple civilizations in this region, and after they conquered them, they started to assimilate them, some of which forcefully. Over time, their assimilation turned out to be a success, so the most dominant religion, by far, in Latin America is the Roman Catholicism.  

7 0
3 years ago
Read 2 more answers
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alexira [117]

The correct answer is - b. destructive.

Once the mountains stop their lifting up and also the other features are done with their formation, the erosion process takes over and starts to do its work by slowly wearing down the mountains and other features. The tendency of the erosion process is to flatten everything that it affects, so if there isn't any significant change that will cause lifting up of the terrain, the erosion will be able to flatten the space as much as possible. The erosive processes are considered as destructive processes because they are destroying the land features.

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Genrish500 [490]

Answer:

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Explanation:

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