<span>In the west region of the US has natural sources like water, coal, oil, iron ore and lumber and there are a lot of forests and mining sites.</span>
Answer:
d. It involves the use of expert judgment to develop forecasts.
Explanation:
Forecasting :
Forecasting is the prediction technique of future demand by using past data.
The type of forecasting:
1 .Qualitative
In this technique ,expert gives own opinion regarding the future demand of any service or product.
2. Quantitative
In this technique
1 . The information can be quantified
2.Assume that future demand will follow a past demand curve.
3.. It can be used when past information about the variable being
forecast is available.
In the quantitative forecasting pert judgment does not use to develop forecasts.
Option d is the correct answer.
d. It involves the use of expert judgment to develop forecasts.
Because the Moon<span> rotates </span>on<span> its axis at the same rate that the </span>Moon<span> orbits the </span>Earth<span>, </span>a<span> situation known as synchronous rotation or tidal locking. The </span>Moon is <span>directly illuminated by the Sun, and the cyclically varying viewing conditions cause the lunar phases.
Hope this helps :)
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Answer:
Two stars (a and b) can have the same luminosity, but different surface area and temperature if the following condition is met:
(T_a^4)(R_a^2) = (T_b^4)(R_b^2)
Explanation:
The luminosity of a star is the total energy that produces in one second. It depends on the size of the star and its surface temperature.
L = σ(T^4)(4πR^2)
L is the luminosity f the star, T is the temperature of the surface of the star and R is its radius.
Two stars can have the same luminosity if the relation between the radius and the surface temperature is maintained.
To see this lets suposed you have 2 stars, a and b, and the luminosities of each one of them:
L_a = σ(T_a^4)(4πR_a^2)
L_b = σ(T_b^4)(4πR_b^2)
you can assume that L_a and L_b are equal:
σ(T_a^4)(4πR_a^2) = σ(T_b^4)(4πR_b^2)
Now, you can cancel the constants:
(T_a^4)(R_a^2) = (T_b^4)(R_b^2)
as long as this relation between a and b is true, then the luminosity can be the same.
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