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likoan [24]
3 years ago
5

Demand for a certain product is forecast to be 800 units per month, averaged over all 12 months of the year. The product follows

a seasonal pattern, for which the January monthly index is 0.8. What is the seasonally-adjusted sales forecast for January?
Physics
1 answer:
adoni [48]3 years ago
5 0

Answer:

Adjusted forecast for January is 640

Explanation:

given,                                                                  

Demand forecast of a certain product = 800 units      

averaged over all months = 12 months                            

January monthly index = 0.8                                              

We have to find seasonally-adjustment sales for January

Adjusted forecast = ( Demand ) x ( monthly index )

                              =   800 x 0.8                              

                              =  640                                  

Adjusted forecast for January is 640

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Answer:

102 dB    

Explanation:

Intensity level is given by:

I(dB)=10log\frac{I}{I_o}

59=10log\frac{I_d}{I_o}\\I_d=10^{5.9}I_o

I_r=2\times10^4I_d=2\times10^4\times10^{5.9}I_o

I_r(dB)=10log\frac{I_r}{I_o}\\=10log\frac{2\times 10^{9.9}I_o}{I_o}=10\times10.2\\=102 dB

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4 years ago
Electromagnetic waves can transfer energy without which of the following?
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The correct answer is A. Electromagnetic waves can transfer energy without a medium. Heat can be transferred through a vacuum only via radiation. Infrared waves are electromagnetic waves that does not require a medium to travel. Heat is transferred in a vacuum in the form of infrared waves.
7 0
3 years ago
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A mixture of N2, H2 and He have mole fractions of 0.25, 0.65, and 0.10, respectively. What is the partial pressure of N2 if the
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Answer: The partial pressure of N_2 if the total pressure of the mixture is 3.9 atm is 0.975 atm

Explanation:

According to Raoult's law, the vapor pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the vapor pressure of that component in the pure state.

p_A=x_A\times P_T

where, x = mole fraction of nitrogen in solution = 0.25

p_A = partial pressure  of nitrogen = ?

P_T = Total pressure = 3.9 atm

Putting in the values :

p_A=0.25\times 3.9=0.975atm

The partial pressure of N_2 is 0.975 atm

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Why echo sound cannot be heard in small room
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3 years ago
A rock is thrown horizontally out of a window with a velocity of 20.0 m/s. If the window is 8.50m above the ground, how far
vladimir1956 [14]

The distance from the base of the building the rock will land is 26.4 m

<h3>Data obtained from the question </h3>
  • Horizontal velocity (u) = 20 m/s
  • Height (h) = 8.50 m
  • Distance (s) =?
<h3>Determination of the time to reach the ground </h3>
  • Height (h) = 8.50 m
  • Acceleration due to gravity (g) = 9.8 m/s²
  • Time (t) =?

h = ½gt²

8.5 = ½ × 9.8 × t²

8.5 = 4.9 × t²

Divide both side by 4.9

t² = 8.5 / 4.9

Take the square root of both side

t = √(8.5 / 4.9)

t = 1.32 s

<h3>How to determine the distance </h3>
  • Horizontal velocity (u) = 20 m/s
  • Time (t) = 1.32 s
  • Distance (s) =?

s = ut

s = 20 × 1.32

s = 26.4 m

Learn more about motion under gravity:

brainly.com/question/22719691

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3 years ago
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