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Pavlova-9
2 months ago
14

Which of the following statements is true about a light year?

Geography
2 answers:
DiKsa [337]2 months ago
7 0

Correct response: It's used for measuring vast distances in space

A light year (ly) serves as a measurement of distance, roughly 9.46×{10}^{12}km.

It is defined as the total distance a photon travels in a vacuum over a Julian year (365.25 days), at the speed of light (299,792,458 m/s), away from any magnetic or gravitational influence.

In simpler terms:

It refers to how far light can go in a year.

This unit is typically applied to indicate extensive distances in space. Thus, option D is correct.

NikAS [361]2 months ago
3 0
The correct choice is D; this unit measures extensive distances throughout space. For instance, Proxima Centauri, the closest star, is located 4.22 light years from Earth. 
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What makes planet Earth a "house"for living organisms?
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It stands as the sole habitable planet of all. Earth is particularly well-appointed as a planet, ideally situated within our solar system and galaxy to support life.

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In the ancient world, who would have been most likely to help spread new ideas and tools from one civilization to another?
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After years of maintaining a steady population of 32,000, the population of a town begins to grow exponentially. After 1 year an
gogolik [350]

Answer:

y = 32,000 + 2560(x)

Explanation:

After maintaining a stable population of 32,000 for several years, an exponential growth of 8% from 32,000 occurs in the next year, raising the population to 34560.

To calculate this,

8% of 32000 = 8/100 ×  32000 = 2560

Now, adding this growth to the original population results in:

2560 + 32000 = 34, 560

The figure of 34560 represents the population after 1 year.

To predict the town's population over x years, expressed with y as the population, the following formula can be applied:

y = 32,000 + 2560(x)

Testing the equation with values of x = 4 years and 3 years yields:

y = 32,000 + 2560(4) = 32,000 + 10240 = 42240 people will reside in the town in four years

y = 32,000 + 2560(3) = 32,000 + 7680 = 39680 people will reside in the town in three years.

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