To archive a concentration of 40%, you need to add 62.5 kg of salt.
How much salt must we add?
First, we have 150kg of aqueous salt solution with a concentration of the 15%, which means that the 15% of 150kg is salt, so we have:
0.15*150kg = 22.5 kg of salt.
Now we want to add a quantity M of salt, such that the new concentration of salt is of 40%.
The new mass of the mixture will be:
150kg + M
The new mass of salt will be:
22.5kg + M
The concentration of salt, in decimal form, will be:
(22.5kg + M)/(150kg + M)
The above quotient must be equal to 0.4 (40% in decimal form), then we solve:
(22.5kg + M)/(150kg + M) = 0.4
(22.5kg + M) = 0.4*(150kg + M)
(22.5kg + M) = 60kg + 0.4*M
M - 0.4*M = 60kg - 22.5kg
0.6*M = 37.5kg
M = (37.5 kg)/0.6 = 62.5kg
So you need to add 62.5kg of salt.
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If you were to carve a wooden statue what tool would you use?
A: Chisel
B: Hand Saw
C: Hack Saw
D: Tin Snips
Answer:
You would have to use a chisel.
.Explanation:.
.
The effective temperature of a body having an area on 0.12 m² is 527°C what is the total rate of energy emission?
The total rate of energy emission is 2786.9 W.
Total Rate of Energy EmissionRadiation is a type of heat transfer where the heat energy is conveyed from photons or electromagnetic waves. The rate of energy emission can be calculated multiplying the Stefan–Boltzmann law (σ[tex]*T^4[/tex]) by area (A). Therefore, you have:
Total Rate of Energy Emission (E)= σ[tex]*A*T^4[/tex], where:
σ = Stefan–Boltzmann constant = [tex]5.67*10^{-8}[/tex] [tex]\frac{W}{m^2K^4}[/tex]
A= area
T=temperature (K)
For solving this exercise, you should apply this formula. For your question:
σ = Stefan–Boltzmann constant = [tex]5.67*10^{-8}[/tex] [tex]\frac{W}{m^2K^4}[/tex]
A= 0.12 m²
T=527+273=800 K
Thus, the Total Rate of Energy Emission (E) will be:
E=σ[tex]*A*T^4[/tex]
[tex]E=(5.67*10^{-8}\frac{W}{m^2K^4})*(0.12*m^{2} )*(800K)\\ \\ E=2786.9 W[/tex]
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Water flows through a horizontal branching pipe as shown
in Fig. P3.109. Determine the pressure at section (3).
The pressure of the water in section 3 of the horizontal pipe is -945 kPa.
Volumetric flow rate at equilibrium
The volumetric flow rate at equilibrium is given as flows;
mass in = mass out
[tex]Q_1 = Q_2 + Q_3[/tex]
where;
Q1 is the flow rate in section 1Q2 is the flow rate in section 2Q3 is the flow rate in section 3Pressure of water in section 3The pressure of water in section 3 of the horizontal pipe is calculated as follows;
[tex]F_2 + F_3 = F_1\\\\\frac{P_2}{A_2} + \frac{P_3}{A_3} = \frac{P_1}{A_1} \\\\\frac{350\ kPa}{0.02} + \frac{P_3}{0.07} = \frac{400 \ kPa}{0.1}\\\\\\frac{P_3}{0.07} = \frac{400 \ kPa}{0.1} - \frac{350\ kPa}{0.02} \\\\\frac{P_3}{0.07} = 4000 \ kPa/m^2 \ - \ 17,500 \ kPa/m^2\\\\\frac{P_3}{0.07} = -13,500 \ kPa/m^2 \\\\P_3 = 0.07 \ m^2 \ \ \times \ \ -13,500 \ kPa/m^2\\\\P_3 = -945 \ kPa[/tex]
Thus, the pressure of the water in section 3 of the horizontal pipe is -945 kPa.
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FD=CD*((P*(V^2)*A)/2)
Please solve for V
Answer:
The answer is V = √2FD ÷ CD × PA
Explanation:
FD = CD × PV²A ÷ 2
V² = 2FD ÷ CD × PA
V = √2FD ÷ CD × PA
Thus, The value of V is V = √2FD ÷ CD × PA
-TheUnknownScientist 72
Rear axles are usually lubricated by the same gear oil that lubricates the differential. True or false
Answer:
true
Explanation:
Which of these was not part of the OBD II implementation?
OA. Common Codes
OB. Readiness Monitors
OC. Digital Processing
OD. Standard Terminologies
The Digital Processing is not part of the OBD II implementation.
What is an OBD II system?OBD II is known to be a kind of acronym for On-Board Diagnostic II. This is known to be the second generation of on-board self-diagnostic equipment that is needed for light- and medium-duty California vehicles.
The OBD-II is said to be a kind of on-board computer that handles emissions, , speed, etc.
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In an automotive shop, asbestos is found in _________.
Brake housing and lining is the answer I guess :'
How does energy transition from one form to another as water moves from behind a dam to downstream of a dam?.
How would I find the Voltage across the open circuit
Answer:
Vab = 80V
Explanation:
The only current flowing in the circuit is supplied by the 100 V source. Its only load is the 40+60 ohm series circuit attached, so the current in that loop is (100V)/(40+60Ω) = 1A. That means V1 = (1A)(60Ω) = 60V.
Vab will be the sum of voltages around the right-side "loop" between terminals 'a' and 'b'. It is (working clockwise from terminal 'b') ...
Vab = -10V +60V +(0A×10Ω) +30V
Vab = 80V
When the same type of arc is used in more than one place, what note is included with the dimension?
Answer:
Numerals
Dimensions
Extension Lines
Arrowheads
Dimension Figures
Isometric Dimensioning
Orthographic Dimensioning
If a drawing is to be complete, so that the object represented by the drawing can be made as intended by the designer, it must tell two complete stories. It tells this with views, which describe the shape of the object, and with dimensions and notes, which give sizes and other information needed to make the object.
Therefore, your next step is to learn the basics of dimensioning. In that way, you will understand not only how to interpret a drawing to get the information you need, but also how to dimension your sketches so that they can be used to communicate size information to others.
Numerals
It may seem a bit basic, but a few exercises with the shapes of numbers come before dimensioning. The reason for such a review is simply that incorrectly or carelessly made numbers on a drawing or sketch can easily be misinterpreted by someone on the job. That can be costly.
Therefore, the study of numbers forms is justified.
The number forms presented here have been determined to be the most legible, and are used by industry nationwide. The United States standardized 1/8” vertical
Explanation:
It is best to organize dimensions for easy reading. The drawing should have constant distances between dimension lines. If clarity cannot be achieved, avoid dimensioning inside objects or having the dimension line touch them.
What different notes in the dimension?There are two categories of dimensions: size dimensions and location dimensions.
The measures for the size of features and objects are provided by size dimensions. To locate features and objects, location dimensions are utilized. Drawings may also contain notes.
A measurement is referred to as a Size Dimension if it represents an object's size. A measurement is referred to as a Location Dimension if it represents an object's location.
This method is known as the Unidirectional Method if the dimension is written in the same direction throughout the entire drawing.
Therefore, When the same type of arc is used in more than one place, numerals note is included with the dimension.
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#SPJ2
Which of the following are examples of
engineering controls? Select all that apply.
.
Steps for removing used medical exam gloves
Washing stations
Biohazard waste containers
Spill clean up kits
Sharps containers
The examples of engineering controls is Biohazard waste containers and Spill clean up kits.
What is engineering controls?An engineering controls is a workplace process that protect workers by removing hazardous conditions or by placing a barrier between the worker and the hazard.
An example of engineering controls is installation of exhaust ventilation to remove airborne emissions to shield the worker.
Hence, the examples of engineering controls is Biohazard waste containers and Spill clean up kits.
Therefore, the Option C and D is correct.
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Along with the open wrench, what other type of wrench will assist in turning nuts and bolts.
Answer:
socket wrench or ratchet wrench
Explanation:
The load is 200g and is 5' away from
the fulcrum, what is the mechanical
advantage and how many newtons of
force needed to lift the load?
Answer:
In 1st class levers, the fulcrum is always between the effort force and the load. It may or may not provide a mechanical advantage, depending on the location.
Explanation:
A basic 3-input logic circuit has a LOW on one input and a HIGH on the other two inputs, and the output is LOW. What type of logic circuit is it
Answer:
any of AND, NOR, XOR
Explanation:
An AND gate will give a Low output for any input Low. The logic circuit could be an AND gate.
A NOR gate will give a Low output for any input High. The logic circuit could be a NOR gate.
An XOR gate will give a Low output for an even number of High inputs. The logic circuit could be an XOR gate.
The logic circuit could be any of ...
AND or NOR or XOR
__
Additional comment
What you consider a "basic" gate is not defined here. All of these are catalog items. If you consider only AND, OR, and NOT to be the basic gates, then your answer is AND.
In python, how would I randomize numbers and insert them into a file?
HELP PLEASE
What is 23÷357?
(I don't really need help )
But EVERYONE! At 8! or in 50 minutes or so brainly is not gonna let you ask anything!! So ask while you can!
..........23÷357=0.0644257703........
a a a a a a a a a a a a a a a a a a a a a a a a a a a a
Answer:
I agree
Explanation:
Answer:
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
funny question of no reason but k
Explanation:
If you deposit today 11,613 in an account earning 8% compound interest, for how long should you invest the money in order to earn 15,131.76 (profit)?
what is the effect of impacts on the structure? on the structure course
Explanation:
Structure controls the major elements of a story, including plot, characters, setting, and theme. ... In this, we see the plot introduced, a crisis or complication, and a resolution. The structure affects the meaning of the story by organizing the theme of the writing.
who ever answers this gets 25 NON COSTLY points
Answer:
"cool"
Explanation:
A turbine engine compressor which contains vanes on one side of the impeller is a
1. Single entry centrifugal flow compressor
2. Single entry axial flow compressor
3. Double entry axial flow compressor
4. Double entry centrifugal compressor
The turbine engine described above is a Single-entry Centrifugal Compressor.
What is a Single-entry Centrifugal Compressor?
Also known as a Single-Stage Centrifugal compressor, this type of engine combines one impeller with an inlet guide vane that is associated and a diffuser.
It is used for increasing the kinetic energy of the gas with a high-speed impeller. This energy is then converted into heightened pressure within the diffuser. The correct answer, thus, is A.
In order words, they are used for compressing large volumes of gas into small pressures.
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Whats the purpose of the keyway
Answer:
abrir candados y abrir puertas
Explanation:
All of these are types of wheel alignments EXCEPT:
A) four-wheel.
B) steering angle.
C) two-wheel.
D) thrust angle.
Answer:
thrust angle
Explanation:
good luck.........
invent a machine that helps our environment to lessen plastics? draw and explain
Answer: 1. Capturing fibers shed from tyres
The Tyre Collective start-up describes tyres as “the stealthy pollutant you never thought about.”
“It’s common knowledge that tyres wear down, but nobody seems to think about where it goes, and we were really shocked to discover that tyre particles are the second-largest microplastic pollution [after single-use plastics] in our oceans,” Hugo Richardson, one of co-founders of the company, said.
The particles from tyres also infuse into the air we breathe, making up to 50% of air particle emissions from road transport.
Explanation:
what is the meaning of ultrametric problem?
What part of a combination vehicle is referred to as the power unit?
First, the 'power unit' or 'tractor' in trucking refers to the head of a truck, i.e., the engine and driver's cab. The tractor is used to pull the second main part, which is the trailer, a sort of box on wheels in which the cargo is placed.
) Orange juice flowing through a pipe at a rate of 40 kg/min is sweetened by adding concentrated sugar solution (25 % sugar) to the pipe line at constant rate. At what rate would the concentrated sugar solution be added to provide 12% sugar in the sweetened orange juice? (10 Mark
We have that the rate at which the concentrated sugar solution be added is mathematically given as
A=36.93kg/min
Rate at which concentrated sugar is addedQuestion Parameters:
Orange juice flowing through a pipe at a rate of 40 kg/min is sweetened by adding concentrated sugar solution (25 % sugar) to the pipe line at constant rate.
Generally the equation for the Over balance is mathematically given as
A+40=B
Salt balance
A(0.25)=B(0.12)
A(2.083)=B
Hence
A+40=A(2.083)
A=40/1.083
A=36.93kg/min
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What is the purpose of encryption?
Answer:
Encryption enhances the security of a message or file by scrambling the content. To encrypt a message, you need the right key, and you need the right key to decrypt it as well.It is the most effective way to hide communication via encoded information where the sender and the recipient hold the key to decipher data.
2. To read and understand electrical blueprints, you need to know
O A. the fundamentals of electrical engineering.
O B. how to sketch a plan view.
C. how buildings are constructed.
O D. the meaning of electric symbols.
Answer:
To read electrical blueprints one must understand the flow of the circuit, identify critical nodes, understand Ohm’s Law, [ and have a deep comprehension of the National Electrical Code. ]
Explanation:
Which of the following sensors is used to provide suspension control module with feedback regarding vehicle cornering forces?
Question content area bottom
Part 1
A.
lateral accelerometer sensor
B.
vehicle speed sensor
C.
yaw rate sensor
D.
pressure sensor
Answer:
A
Explanation: