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vladimir1956 [14]
2 years ago
11

Radio stations identify themselves by their position on the radio dial such as 90. 1 and 93. 3. This number is based on the numb

er of waves or cycles that pass a fixed point in a specific unit of time. To which property of a wave does this identification number refer?
SAT
1 answer:
svetlana [45]2 years ago
3 0
The frequency of waves are determined by the amount of waves that pass a specific point in a certain period of time and Radio stations broadcast their signals at different frequencies so that the range of radio frequencies can be used by many stations.
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which of the following best represents the ground-state electron configuration for an atom of selenium?
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Answer:

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The projected population size in 2030 will be : ≈ 44159

First step : determine the population growth rate

Gr = change in population / time

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<h3>Determine the projected population size </h3>

applying Malthus's population projection.

Pp = P₁ ( 1 + r )ⁿ

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Hence we can conclude that the projected population size as at 2030 is 44159

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