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
alexdok [17]
3 years ago
9

Air containing 0.04% carbon dioxide is pumped into a room whose volume is 6000 ft3. The air is pumped in at a rate of 2000 ft3/m

in, and the circulated air is then pumped out at the same rate. If there is an initial concentration of 0.4% carbon dioxide, determine the subsequent amount in the room at any time.What is the concentration at 10 minutes?
Mathematics
1 answer:
borishaifa [10]3 years ago
4 0

Answer:

the concentration at 10 minutes= 0.4+0.0133= 0.4133%

Step-by-step explanation:

Air containing 0.04% carbon dioxide

V, volume of room is 6000 ft3.

Q, rate of air 2000 ft3/min,

initial concentration of 0.4% carbon dioxide,

determine the subsequent amount in the room at any time.

What is the concentration at 10 minutes?

firstly, we find the time taken for air to completely filled the room

Q = V/t

t = V/Q = 6000/2000 = 3min

so, its take 3mins for air to be completely filled in the room and for exhaust air to move out.

there is  an initial concentration of 0.4% carbon dioxide, and the air pump in is 0.04%.

therefore,

3mins = 0.04% of CO2

3*60 =180sec = 0.04%

1sec = 0.04/180 = 0.00022%/sec

so at any time the concentration of CO2 is 0.4 + 0.00022 =0.40022%/sec

What is the concentration at 10 minute

the concentration at 10minutes = the concentration for 1minute because at every minutes, the concentration moves in is moves out. = concentration for 2000ft3.

for 0.04% = 6000ft3

   ?          = 2000ft3

              = 2000* 0.04)/6000 =0.0133%

the concentration at 10 minutes= 0.4+0.0133= 0.4133%

You might be interested in
Y=-1/2x+10x what is the height of the arch at the turning point
lozanna [386]

your equation is linear, so there isn't any arch

6 0
3 years ago
What is the equation, in slope-intercept form, of the line that is parallel to the given line and passes through the point (0,
Mamont248 [21]

Answer:

y=-5x+12


Step-by-step explanation:

just use a graphing calculator and basic knowledge of slope intercept form

7 0
2 years ago
A store sells 4 T-shirts for $38.04. What is the unit cost per T-shirt?
julsineya [31]

Answer:9.51

38.04/4 = 9.51

Have a good day :)

4 0
2 years ago
Read 2 more answers
In 30 seconds, a mountain biker goes up a 125-foot hill, then down 78 feet, and then back up a 32-foot hill. How much higher or
lana [24]

Answer:

79 foot apperantley

3 0
3 years ago
Solve x/6 = 20. <br> a. x = 120 <br> b. x = 3 <br> c. x = 14 <br> d. x = 26
GenaCL600 [577]
The correct answer is A. x=120
8 0
2 years ago
Read 2 more answers
Other questions:
  • I need help with these
    11·1 answer
  • What is 9,740,399 rounded to the nearest 100,000
    9·2 answers
  • What is the solution to the following system of equations?
    8·1 answer
  • Tyler’s brother earns $12 per hour. The store offers him a raise— a 5% increase per hour. After the raise, how much will Tyler’s
    10·2 answers
  • Question 3
    15·1 answer
  • Name 2 items that measure about 1 foot
    8·2 answers
  • In the diagram, L= N and would be the Reason for Statement 4? Explain with<br> Stem<br> As<br> WONOM<br> AR
    14·1 answer
  • the mean of a group of students in 60 . if their marks 85 ,65,36 ,48 , X ,75 ,39,72 then find the value of x​
    14·1 answer
  • Pls help me <br><img src="https://tex.z-dn.net/?f=49%20%3D%20%20%7Bx%7D%5E%7B2%7D%20" id="TexFormula1" title="49 = {x}^{2} " al
    8·2 answers
  • The solution to the problem
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!