1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stellarik [79]
3 years ago
7

A company has a stack that emits a hazardous air pollutant. The ground mass concentration directly downwind of the plume sometim

es exceeds the safe limit (call it cj,safe) and the Department of Environmental Protection (DEP) is requiring a correction to this situation. The company decides to look into building a taller stack, rather than investing in a more sophisticated and very expensive APCS. They hire you as a consultant to calculate how tall the new stack would have to be in order to satisfy DEP.
Required:
a. Generate an equation to determine the stack height hs required such that, for the reflecting ground case, the ground level concentration on the ground directly downwind (y = 0 and z = 0) does not exceed the safe level at any location along the ground.
b. Repeat for the absorbing ground case.
c. Discuss. Is this a good solution for the company’s problem? For the environment?
Engineering
2 answers:
fomenos3 years ago
4 0
Nobody about to do all of that lol
fredd [130]3 years ago
3 0

Answer:

do the wam wam

Explanation:

You might be interested in
Consider a space shuttle weighing 100 kN. It is travelling at 310 m/s for 30 minutes. At the same time, it descends 2200 m. Cons
mixas84 [53]

Answer:

work done = 48.88 × 10^{9} J

Explanation:

given data

mass = 100 kN

velocity =  310 m/s

time = 30 min = 1800 s

drag force = 12 kN

descends = 2200 m

to find out

work done by the shuttle engine

solution

we know that work done here is

work done = accelerating work - drag work - descending work

put here all value

work done = ( mass ×velocity ×time  - force ×velocity ×time  - mass ×descends )  10³ J

work done = ( 100 × 310 × 1800  - 12×310 ×1800  - 100 × 2200 )  10³ J

work done = 48.88 × 10^{9} J

6 0
2 years ago
A rocket is launched from rest with a constant upwards acceleration of 18 m/s2. Determine its velocity after 25 seconds
lisabon 2012 [21]

Answer:

The final velocity of the rocket is 450 m/s.

Explanation:

Given;

initial velocity of the rocket, u = 0

constant upward acceleration of the rocket, a = 18 m/s²

time of motion of the rocket, t = 25 s

The final velocity of the rocket is calculated with the following kinematic equation;

v = u + at

where;

v is the final velocity of the rocket after 25 s

Substitute the given values in the equation above;

v = 0 + 18 x 25

v = 450 m/s

Therefore, the final velocity of the rocket is 450 m/s.

5 0
2 years ago
Giving free brainlist first 1
kaheart [24]

Hi! Hope you're having a great day!

8 0
2 years ago
can anyone give me tips on adding HP to my 2014 dodge charger SE? it uses the 3.6L220 CI 24 valve v6 vvt (variable valve timing)
marissa [1.9K]
<h2>ANSWER</h2><h2></h2>

I had a couple of answers for this, but when I checked nothing

was right, so im not sure.

<h2></h2>

5 0
2 years ago
Question 9
Mama L [17]

Answer:
1. Make sure the regulator adjustment screws are completely backed out and loose.
2. Open the main cylinder valves slowly.
3. Set the Oxygen and Acetylene working pressures.

4. Light and adjust the torch.

Explanation:

5 0
10 months ago
Other questions:
  • The displacement volume of an internal combustion engine is 2.2 liters. The processes within each cylinder of the engine are mod
    13·1 answer
  • The mechanical properties of a metal may be improved by incorporating fine particles of its oxide. Given that the moduli of elas
    11·1 answer
  • There have been many attempts to manufacture and market plastic bicycles. All have been too flexible and soft. Which design-limi
    9·1 answer
  • To increase fault-tolerance, the security administrator for Corp has installed an active/passive firewall cluster where the seco
    11·1 answer
  • If 65 gallons of hydraulic oil weighs 350lb, what is the specific weight of the oil in lb/ft^3?
    14·1 answer
  • Question 10 of 25
    6·2 answers
  • Which of the following is not a function of the suspension system?_____
    6·1 answer
  • Respond with TRUE if the symbol of the valve shown below is
    10·1 answer
  • Engine horsepower decreases ________% for every___________feet above sea level.
    9·1 answer
  • Which one of the following best defines hardness: (a) energy absorbed by a material when an object strikes its surface, (b) resi
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!