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
sveta [45]
3 years ago
5

04-9 (ML 6.12) A pristine stream flowing at 100 cubic feet per second (cfs) in the Rocky Mountains contains 5 mg/L of suspended

solids (SS). During the spring, ice melt conveys an additional 250 mg/L of TSS at a rate of 20 cfs into the stream. Determine the concentration of TSS in the stream during the spring. (Hint: Treat the ice melt as a secondary stream added to the first.) Answer: 46 mg/L
Physics
1 answer:
timurjin [86]3 years ago
4 0

Answer:

C_{mix} = 45.833 mg/l

Explanation:

Give data:

flow rate of stream is Q_1 100 cfs

concentration of suspended solids SS_1 5 mg/L

During spring time,

concentration of TSS = SS_2 = 250 mg/l

flow rate of stream Q_2= 20 cfs

we know that, concentration of mix is given as

C_{mix} = \frac{Q_1 SS_1 +  Q_2 SS_2}{Q_1 +Q_2}

C_{mix} = \frac{100\times 5 + 20\times 250}{100+20}

C_{mix} = 45.833 mg/l

You might be interested in
Explain, using numbered steps, how you could find the volume of a small, irregularly shaped rock.
dmitriy555 [2]
<span>1. Get a graduated cylinder. 2. Fill the graduated cylinder to a known amount of water. Record the amount of water in the cylinder. 3. Place rock into the graduated cylinder 4. Measure the new volume of the graduated cylinder with the rock in it. 5. Take the difference of the new volume and the old volume and that is the volume of the rock.</span>
8 0
2 years ago
What is the average (mean) of these numbers: 13,43, 12, 3,66​
algol13

Answer:

27.4

Explanation:

(13+43+12+3+66)/5

137/5

27.4

3 0
3 years ago
Read 2 more answers
A 4.5-kg, three legged stool supports a 89-kg person. If each leg of the stool has a cross-sectional diameter of 2.8 cm and the
kkurt [141]

Answer:

4.96 × 10⁵ Pa

Explanation:

F = mg

F = (m_{person}+m_{stool})g\\\\F =  (4.5 + 89)*9.8\\\\F = 916.3 N

This force is evenly distributed on the three leg

radius, r = d/2

= 2.8 / 2

= 1.4 cm = 0.014 m

total cross sectional area of the three legs, A = 3*pi*r^2

= 3\times\pi \times0.014^2\\\\= 1.847\times10^-^3m^2

Pressure due to weight,

P = Weight/A

P = / 1.847 × 10⁻³\\P = \frac{ 916.3N}{1.847\times10^-^3} \\\\P= 496032.9Pa

P = 4.96 × 10⁵ Pa

8 0
3 years ago
A net force, the magnitude of which is 3800 N, accelerates a 1260-kg vehicle for 10.0 s. The vehicle travels 50.0 m during this
Novay_Z [31]

Answer:

SEE EXPLANATION

Explanation:

p =  \frac{fd}{t}  \\ where \: \\p  = power \\  f = force \\ d = distance \\ and \: t = time \\  \\ p =  \frac{3800 \times 50}{10}  \\ p =  \frac{190000}{10}  \\ p = 19000w

7 0
3 years ago
What is the chemical name for lime
Sergio039 [100]
Calcium Oxide
CaO I think
5 0
2 years ago
Other questions:
  • Which medium below conducts sound the fastest?
    11·2 answers
  • A concave lens always creats an image that is smaller and upright
    10·1 answer
  • 1. Fill in the blanks FX FY F Angle (degrees) from the x axis 10 30 10 10 10 60 20 35 15 60 2. An airplane flew for one hour and
    8·1 answer
  • You decide to walk part of the way around a lake. The lake is a circle with a radius of 2.0 km You start on the shore due south
    11·1 answer
  • What type of bond is formed when two or more water molecules interact?
    14·1 answer
  • Cognitive changes that accompany depression include
    15·1 answer
  • 2. Which pair of objects has the largest gravitational force?
    8·1 answer
  • How to tell cold fronts from warm fronts
    8·1 answer
  • If a motorcycle covers 5km in 10 minutes , how far does it move in 1 second ?​
    7·1 answer
  • A car originally at rest reaches 40m/s after accelerating for 50s. Calculate its acceleration
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!