EP Electric has identified two new methods to treat its cooling water. Alternative D(for inflow) would treat the raw water with a conventional reverse osmosis system so that the cycles of concentration could be increased from 5 to 20, This will result in water cost savings of $360,000 per year and chemical cost savings of $56,000 per year. The initial cost of the equipment will be $2.3 million with an operating cost of $125,000 per year Alternative B (for blowdown) will treat the cooling tower blowdown water using a highpressure seawater reverse osmosis system to recover most of the water that is sent to an evaporation pond. This option will result in water sav- ings of $270,000 per year. The cost of the system will be $1.2 million with an operating cost of $105,000 per year. Assuming one of the two methods must be installed, determine which is preferred on the basis of the incremental ROR value using MARRof 5%per year, which is a typically low return expected of government projects. Use a 10-year study period with no salvage value for either system. (Note: See Problem 8.41 for more on this situation.)

Answer: A

Step-by-step explanation:

The best group to survey is option A. A.Get a list of salons in her town and use a deck of cards to pick 5 of them to visit. Survey all hairstylists that work in each salon.

What is the survey?

Surveys represent the list of questions that should be focused on for extracting particular data from the people. It could be conducted via the phone, mail, internet, malls, etc.

Since mags want to know the hottest hairstyle trend so here he should get the list of towns and then use the deck of cards so that she should pick 5 for visiting them. Therefore, the correct option is a.

Answer:

a) The maximum possible heat removal rate = 2.20w

b) Fin length = 37.4 mm

c) Fin effectiveness = 89.6

d) Percentage increase = 435%

Explanation:

See the attached file for the explanation.

Answer:

Two important quantum-mechanical concepts associated with the Bohr model of the atom are (1) that electrons are particles moving in discrete orbitals, and (2) electron energy is quantized into shells. (b) Two important refinements resulting from the wave-mechanical atomic model are (1) that electron position is described in terms of a probability distribution, and (2) electron energy is quantized into both shells and subshells--each electron is characterized by four quantum numbers.

Explanation:

Part A:

The two important quantum-mechanical concepts associated with the Bohr model of the atom are:

(1) Electrons are particles moving in discrete orbitals.

(2) Electron energy is quantized into shells.

Part B:

The two important refinements resulting from the wave-mechanical atomic model are:

1. That electron position is described in terms of a probability distribution.
2. The electron energy is quantized into both shells and subshells each electron is characterized by four quantum numbers.

Answer:

•eat healthy food.

•exercise.

•live tobacco free.

•maintaina healthy weight.

You do to keep your heart healthy Eat healthy food,Exercise,Live tobacco free,Maintaina healthy weight.

We have in given,

you will apply your knowledge of the cardiovascular system as you explore articles related to the heart. You will use your understanding of the content to answer the questions provided.

We have given the article Preventing Heart Disease.

What is the meaniung of helty heart?

Your heart is healthy that is well and is not suffering from any illness.

You can do to keep your heart healthy

.•Eat healthy food.

•Exercise.

•Live tobacco free.

•Maintaina healthy weight.

The above habits privent your heart good.