Answer:
The speed of the car is 67.77 m/s and it is moving away from the observer.
Explanation:
The apparent frequency is given as
![f' = f\dfrac{ [v - vo]}{ [v - vs]}](https://tex.z-dn.net/?f=f%27%20%3D%20f%5Cdfrac%7B%20%5Bv%20-%20vo%5D%7D%7B%20%5Bv%20-%20vs%5D%7D)
Here
o is the observer
s is the source which is car
v is the speed of sound = 343 m/s
f = true frequency emitted by the car (when stationary)
f ' = 0.835 f
so
![f' = f\dfrac{ [v - vo]}{ [v - vs]}\\0.835 f= f\dfrac{ [v - vo]}{ [v - vs]}\\0.835 = \dfrac{ [343 - 0]}{ [343 - vs]}\\0.835=\frac{343}{343-x}\\x=-67.77 m/s](https://tex.z-dn.net/?f=f%27%20%3D%20f%5Cdfrac%7B%20%5Bv%20-%20vo%5D%7D%7B%20%5Bv%20-%20vs%5D%7D%5C%5C0.835%20f%3D%20f%5Cdfrac%7B%20%5Bv%20-%20vo%5D%7D%7B%20%5Bv%20-%20vs%5D%7D%5C%5C0.835%20%3D%20%5Cdfrac%7B%20%5B343%20-%200%5D%7D%7B%20%5B343%20-%20vs%5D%7D%5C%5C0.835%3D%5Cfrac%7B343%7D%7B343-x%7D%5C%5Cx%3D-67.77%20m%2Fs)
The speed of the car is 67.77 m/s and it is moving away from the observer.
Answer:
d. the increased likelihood of flooding as more trees are cut plus the private cost of cutting the trees.
Explanation:
Social cost is defined as private cost incurred by individuals involved in a transaction along with external cost incurred by third parties that are not directly involved in the transaction. Basically it is the total cost to society for carrying out an activity or transaction.
In the given instance private individuals are incurring cost of cutting trees in a government forest, and the cost to the society at large is the increased likelihood of flood because the trees have been cut down.
Answer:
The marketing firm should use the Present Net Value calculation to see if the marketing campaign will add value to the company.
Explanation:
The Present Net Value is a calculation that brings to present time all the future cash flows of an investment. Seeing the campaign marketing strategy as a potential investment, the firm has to identify the revenue entirely caused by the marketing campaign. Doing this, the firm will identify inflows (sales) per year that have to be subtracted to the outflows (marketing expenses). The net value of every year is discounted at a discount rate, and if the Present Net Value is higher than 0, it means that the marketing strategy is expected to bring value to the firm
Answer:
step 1: click instead> Chart
step 2: click th3 chart type and then double click th3 chart you want.
step 3: in th3 worksheet that appears, replace the placeholder data with your own information.
step 4: when you insert a chart, small buttons appear next to the upper right corner.
step 5: when finished, close th3 worksheet
Marginal Cost is the correct answer
