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Hitman42 [59]
1 year ago
14

Technician A ay that acid rain doe the mot harm when it firt fall on a finih. Technician B ay that hard water potting i uually j

ut a urface problem that can be wahed off. Who i right?
Engineering
1 answer:
Tamiku [17]1 year ago
6 0

Technician B is right say that hard water potting i usually jut a Surface problem that can be wahed off.

What do you mean by Hard water?

The amount of dissolved calcium and magnesium in the water determines its hardness. Calcium and magnesium are the main dissolved minerals in hard water. The last time you washed your hands, you might have actually felt the effects of hard water.

What do you mean by acid rain?

Any type of precipitation that contains acidic elements, such as sulfuric or nitric acid, that falls to the ground from the atmosphere in wet or dry forms is referred to as acid rain, also known as acid deposition. Rain, snow, fog, hail, and even acidic dust can fall under this category.

Some plants are sensitive to excessive moisture around their root zone, so it may be necessary to increase drainage when growing plants in pots. Additionally, standing water at the bottom of the pot can cause root rot.

Many university agriculture extension agencies have thoroughly debunked the old garden myth that adding rocks to the bottom of a pot will increase drainage.

Learn more about hard water click here:

brainly.com/question/28178305

#SPJ4

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Close to 16 billion pounds of ethylene glycol (EG) were produced in 2013. It previously ranked as the twenty-sixth most produced
bekas [8.4K]

Answer:

a) 0.684

b) 0.90

Explanation:

Catalyst

EO + W → EG

<u>a) calculate the conversion exiting the first reactor </u>

CAo = 16.1 / 2   mol/dm^3

Given that there are two stream one  contains 16.1 mol/dm^3 while the other contains   0.9 wt% catalyst

Vo = 7.24 dm^3/s

Vm = 800 gal = 3028 dm^3

hence Im = Vin/ Vo = (3028 dm^3) / (7.24dm^3/s) = 418.232 secs = 6.97 mins

next determine the value of conversion exiting the reactor ( Xai ) using the relation below

KIm = \frac{Xai}{1-Xai}  ------ ( 1 )

make Xai subject of the relation

Xai = KIm / 1 + KIm  ---  ( 2 )

<em>where : K = 0.311 ,  Im = 6.97   ( input values into equation 2 )</em>

Xai = 0.684

<u>B) calculate the conversion exiting the second reactor</u>

CA1 = CA0 ( 1 - Xai )

therefore CA1 = 2.5438 mol/dm^3

Vo = 7.24 dm^3/s

To determine the value of the conversion exiting the second reactor  ( Xa2 ) we will use the relation below

XA2 = ( Xai + Im K ) / ( Im K + 1 ) ----- ( 3 )

<em> where : Xai = 0.684 , Im = 6.97,  and K = 0.311  ( input values into equation 3 )</em>

XA2 = 0.90

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4 0
3 years ago
Which rigid motion maps the solid-line figure onto the dotted-line figure?
Agata [3.3K]
I would love to answer but unfortunately there is no picture.
5 0
2 years ago
What types of problems might an electrical engineer need to solve?
aleksandr82 [10.1K]

Answer:

sectores industriales, comerciales o públicos, o para el uso doméstico.

Explanation:

8 0
3 years ago
Why is it called field effect transistor​
Mrac [35]

Answer:

The field-effect transistor (FET) is a type of transistor which uses an electric field to control the flow of current.

FET is named field effect transistor as field effect is producing, but in BJT also field effect will produce. :)

5 0
3 years ago
Sum of Numbers Design a function that accepts an integer argument and returns the sum of all the integers from 1 up to the numbe
cestrela7 [59]

Answer:

# define main to get an argument from the user, call the function, and display the final values

def main():

 # ask an argument from the user.

 number = int(input('Enter a positive integer: '))

 # solve the integral thing of the number by putting the user's argument in the addition() function

 finalSum = addition(number)

 # display the final value integral thing

 print("The integral of this number is ", finalSum, ".")

# define an addition function to find the integral

def addition(num):

 # make an if-statement to test filter things out of your calculations. In this case, 1.

 if num == 1:

   #if 1, return 1. because 1 + (1 - 1) = 1

   return 1

 # this is where the recursion actually is. This is the part that calculates

 else:

   return num + addition(num-1)

# call your main function

main()

Explanation:

This is written in Python. A link to the output can be found below.

https://Sum-of-Numbers.hufflepuffler07.repl.run

4 0
3 years ago
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