The provided program is written in C and consists of a main function along with two additional functions, k_function and m_function. The program takes user input for parameters, performs calculations using the defined functions, and displays the result.
The program with the appropriate codes filled in is:
#include <stdio.h>
#include <math.h>
double k_function(double a, double b, double c);
double m_function(double x, double y, double z, double t);
int main() {
double a, b, c, x, y, z, t;
double result;
printf("Please enter the k function parameters:\n");
scanf("%lf %lf %lf", &a, &b, &c);
printf("Please enter the m function parameters:\n");
scanf("%lf %lf %lf %lf", &x, &y, &z, &t);
if (a == 0 || t == 0) {
printf("This makes the value part undefined. Please re-enter.\n");
goto label;
}
result = k_function(a, b, c) / m_function(x, y, z, t);
printf("The result of the division of two functions: %.2lf\n", result);
return 0;
label:
return 1;
}
double k_function(double a, double b, double c) {
double k_result;
k_result = pow(a, 4) + 2.5;
return k_result;
}
double m_function(double x, double y, double z, double t) {
double m_result;
m_result = pow(x, 2) + sqrt(5) / (pow(c, 7) - pow(2, 3) / (2.9 + sqrt(1.2)));
return m_result;
}
In this program, the <stdio.h> and <math.h> header files are included. The k_function and m_function are defined and implemented. In the main function, the user is prompted to enter the parameters for the k_function and m_function, which are then read using scanf.
If the input values a or t are zero, the program displays an error message and uses a goto statement to jump to the label where it returns 1. Otherwise, the division of the two functions is calculated and displayed as the result.
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the bourdon tube reacts to changes in group of answer choices a. Pressure. b. Temperature.c. Voltage.d. Current
The Bourdon tube is sensitive to changes in pressure and serves as a reliable method for pressure measurement in various applications across industries.
The Bourdon tube is a mechanical device used to measure pressure. It consists of a curved, hollow metal tube that tends to straighten when subjected to internal pressure. This change in shape is the basis for its operation as a pressure measurement tool.
The Bourdon tube is typically connected to the system or process whose pressure needs to be measured. As the pressure within the system increases or decreases, the Bourdon tube responds by either straightening or curving further. This motion is then translated into a corresponding reading on a pressure gauge or other measurement device.
It is important to note that the Bourdon tube is specifically designed to detect changes in pressure and not other variables such as temperature, voltage, or current. While other types of sensors or devices may be used for measuring these other quantities, the Bourdon tube is primarily used for pressure measurement due to its mechanical properties and responsiveness to pressure changes.
In summary, the Bourdon tube is sensitive to changes in pressure and serves as a reliable method for pressure measurement in various applications across industries.
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Consider fully developed flow in a circular pipe with negligible entrance effects. If the length of the pipe is doubled, the head loss will:_________
(a) double,
(b) more than double,
(c) less than double,
(d) reduce by half, or
(e) remain constant.
Fully developed flow in a circular pipe with negligible entrance effects. If the length of the pipe is doubled, the head loss will double.
What is Negligible entrance?The amount of piping head loss is computed by equating the lengths and distances of all fittings to a particular inner pipe diameter. The length of a flow through a conduit before it completely develops is referred to as the entry length in fluid dynamics.
Entrance length is the length of the entry zone, which is the area immediately following the pipe entrance where effects from the inner wall of the pipe disseminate into the flow as an expanding boundary layer.
As the boundary layer completely fills the pipe and the flow characteristics stop changing as the pipe's length rises, the emerging flow becomes fully formed.
Therefore, Fully developed flow in a circular pipe with negligible entrance effects. If the length of the pipe is doubled, the head loss will double.
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Technician A says the term hot wire refers to the section of the circuit after the load or electric device. Technician says the ground wire refers to the section of the circuit after the load or electric device. Who is right?
Answer:
Technician B
Explanation:
In simplistic terms, the "hot wire" connects the load device to the source of electrical energy. The ground wire provides the return path for current from the load device to the energy source. In many circuits, the "ground wire" is at, near, or defined as "ground" potential (the actual potential of the Earth).
Technician A seems to be confused. Technician B is more correct.
calculate the quantities of materials required for the first class brickwork in 1:6 cement mortar for 10 cu.m. assume the suitable data.
4. explain why it is difficult to eliminate functional side effects in c.
Functional side effects are generally difficult to eliminate in C because it is a low-level programming language with a lot of pointer-based functionality. This language is quite powerful, but with power comes a greater responsibility.
Why it is difficult to eliminate functional side effects in C?It is difficult to eliminate functional side effects in C because of the following reasons:
1. Mutable global variables: C allows the use of mutable global variables, which can be accessed and modified by any function in the program. This makes it harder to predict the state of these variables and can lead to unexpected side effects.
2. Pointer manipulation: C provides direct access to memory addresses via pointers. This can lead to unintentional modifications of data in memory and cause unexpected side effects.
3. Lack of immutability: C does not have built-in support for immutable data structures, making it harder to ensure that data remains unchanged when passed between functions.
4. Absence of pure functions: C does not enforce the use of pure functions, which are functions that always produce the same output for the same input and have no side effects. This allows developers to write code with hidden side effects, making it more difficult to eliminate them.
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What can firefighters do to reduce the risk to people living in Skyview?
Answer:
The City can grant higher budgets to emergency services like the Fire Department, so a higher budget will allow engineers & scientists to innovate new technology and add more fire stations across the city.
Explanation:
Consider the following normalized relations from a database in a large retail chain:STORE (StoreID, Region, ManagerID, SquareFeet) EMPLOYEE (EmployeeID, WhereWork, EmployeeName, EmployeeAddress) DEPARTMENT (DepartmentID, ManagerID, SalesGoal) SCHEDULE (DepartmentID, EmployeeID, Date)What opportunities might exist for denormalizing these relations when defining the physical records for this database?
Normalization and denormalization are processes used to optimize database performance. The differences between them are explained using examples.
Normalization is a process performed to minimize/remove anomalies to maintain database consistency.
First normal form eliminates duplicate columns.
For the second normal form, the first normal form step is included in addition to removing duplicate data located in subtables. The third normal form contains the second normal form and is further stepped. This format removes columns that do not depend on primary key columns.
Denormalization is the reverse process of normalization. Reduce effort and optimize performance.
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the american wire gage numbers specify the size of round wire in terms of its diameter and cross-sectional area. true or false
The following statement is true. The American wire gage numbers specify the size of round wire in terms of its diameter and cross-sectional area.
The American Wire Gauge (AWG) is a standardized system used in the United States to specify the diameter of electrical conductors such as wires and cables. The AWG number assigned to a wire indicates its cross-sectional area, which in turn determines the wire's current-carrying capacity and other electrical properties.
As the AWG number increases, the diameter of the wire decreases, and vice versa. For example, a wire with a higher AWG number (such as 24) has a smaller diameter and lower current-carrying capacity than a wire with a lower AWG number (such as 12).
In summary, the AWG number of a wire specifies its diameter and cross-sectional area, which are important factors in determining its electrical properties.
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simple Brayton cycle using air as the working fluid has a pressure ratio of 10. The minimum and maximum temperatures in the cycle are 295 and 1240 K. Assuming an isentropic efficiency of 83 percent for the compressor and 87 percent for the turbine, determine (a) the air temperature at the turbine exit, (b) the net work output, and (c) the thermal efficiency.
Answer:
a) 764.45K
b) 210.48 kJ/kg
c) 30.14%
Explanation:
pressure ratio = 10
minimum temperature = 295 k
maximum temperature = 1240 k
isentropic efficiency for compressor = 83%
Isentropic efficiency for turbine = 87%
a) Air temperature at turbine exit
we can achieve this by interpolating for enthalpy
h4 = 783.05 kJ/kg ( calculated in the background ) at state 4 using Table A-17 for Ideal gas properties of air
T4 ( temperature at Turbine exit ) = 760 + ( 780 - 760 ) \((\frac{783.05-778.18}{800.13-778.18} )\) = 764.45K
b) The net work output
first we determine the actual work input to compressor
Wc = h2 - h1 ( calculated values )
= 626.57 - 295.17 = 331.4 kJ/kg
next determine the actual work done by Turbine
Wt = h3 - h4 ( calculated values )
= 1324.93 - 783.05 = 541.88 kJ/kg
finally determine the network output of the cycle
Wnet = Wt - Wc
= 541.88 - 331.4 = 210.48 kJ/kg
c) determine thermal efficiency
лth = Wnet / qin ------ ( 1 )
where ; qin = h3 - h2
equation 1 becomes
лth = Wnet / ( h3 - h2 )
= 210.48 / ( 1324.93 - 626.57 )
= 0.3014 = 30.14%
Which documents are required to be carried aboard each domestic air carrier flight?
Answer:
Completed load manifest, dispatch release and flight plan
What are the nominal dimensions for a 1x2 stick of lumber, a 2x4 stick of lumber and a standard sheet of plywood?
The actual dimensions for the given nominal dimensions 1x2 stick of lumber, a 2x4 stick of lumber are;
Actual dimension of 1 x 2 stick of lumber = ³/₄'' × 3¹/₂''
Actual dimension of 2 x 4 stick of lumber = 1¹/₂'' × 3¹/₂''
The nominal dimension for a sheet of plywood is; 4' x 8'
Lumber sticks are sticks made from timber in forms used mainly in building construction as formwork support for the sheets of plywood used.
There could also be other uses of lumber sticks like making of some basic home furniture's but they are primarily used in building construction.
Now, Lumber sticks could come in different nominal dimensions such as;
1 x 4 lumber sticks.1 x 6 lumber sticks.1 x 8 lumber sticks.1 x 10 lumber sticks.1 x 12 lumber sticks.2 x 4 lumber sticks.2 x 6 lumber sticks.2 x 8 lumber sticks.2 x 10 lumber sticks.2 x 12 lumber sticks.Now, in the question, we are dealing with 1x2 stick of lumber and a 2x4 stick of lumber. From general cutting standards in most workshops, the actual sizes are respectively;
Actual size of 1 x 2 stick of lumber = ³/₄'' × 3¹/₂''
Actual size of 2 x 4 stick of lumber = 1¹/₂'' × 3¹/₂''
Now, for a sheet of plywood, the standard size of a sheet of plywood is 4' × 8'.
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Describe the meaning of the different symbols and abbreviations found on the documents that they use (such as surface finish, electronic components, weld symbols, linear and geometric tolerances, pressure and flow characteristics).
Surface finish: Symbols that indicate the surface texture of machined and structural parts are used in industrial diagrams. The pictorial representation using these symbols is defined in ISO 1302:2002.
What are other different symbols and abbreviations?Electronic Components: Electronic component symbols are used to denote the components in circuit diagrams. There are standard symbols for each of the components which represent that particular component.
Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances. It uses a symbolic language on engineering drawings and computer-generated three-dimensional solid models that explicitly describe nominal geometry and its allowable variation.
Flow Characteristic describes the relationship between the valve coefficient (Cv) and the valve stroke. Each throttling valve has a flow characteristic. As a valve opens, the flow characteristic allows a certain amount of flow through the valve at a particular percentage of the stroke.
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system dependent recovery equipment cannot be used when
System dependent recovery equipment cannot be used when it is not compatible with the specific system or technology being used for recovery.
This is because different systems may have different requirements and specifications for the equipment being used, and using incompatible equipment could lead to further damage or even complete failure of the recovery process. Therefore, it is important to ensure that the recovery equipment being used is compatible with the system being used, or to use system-agnostic recovery equipment that can work with multiple systems. These tools are designed to assist in troubleshooting, repairing, and restoring system functionality as quickly and efficiently as possible. The specific equipment required may vary depending on the type of system and the nature of the recovery operation. Here are some examples:
Backup and Restore Systems: These include backup servers, tape drives, disk arrays, or cloud-based backup services that facilitate the recovery of data and applications from backupsUninterruptible Power Supply (UPS): UPS devices provide temporary power during a power outage or fluctuation, allowing systems to be properly shut down or continue running until power is restoredData Recovery Tools: Specialized software and hardware tools for recovering data from damaged or corrupted storage devices, such as hard drives, solid-state drives, or memory cardsNetwork Recovery Equipment: This may include network monitoring tools, network switches, routers, or firewalls used to diagnose and repair network issues or restore network connectivityDiagnostic and Repair Tools: These tools help identify hardware or software failures, such as diagnostic software suites, cable testers, voltage testers, and hardware diagnostic cardsSpare Parts and Component Replacements: System-dependent recovery often requires spare parts and replacement components, such as power supplies, hard drives, memory modules, or network cardsDisaster Recovery Planning Tools: These tools assist in creating, managing, and implementing comprehensive disaster recovery plans, including documentation, backup scheduling, and recovery proceduresVirtualization and Cloud Recovery Solutions: Virtualization software or cloud-based recovery services enable the rapid deployment of systems and applications on alternative hardware or cloud infrastructure in the event of a system failurePhysical Security Equipment: Physical security measures like surveillance cameras, access control systems, and alarms play a crucial role in protecting systems and infrastructure from unauthorized access, theft, or damageEmergency Communication Systems: In situations where communication channels are disrupted, emergency communication equipment such as satellite phones, two-way radios, or backup internet connections can facilitate communication among recovery teams.To know more about passive system dependent recovery system, visit the link : https://brainly.com/question/13686168
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The power dissipated in a 4-ohm resistor carrying 3 a is.
The power dissipated in the 4-ohm resistor carrying 3 amps is 36 watts.
The power dissipated in a resistor is the amount of energy being converted into heat. In this case, we have a 4-ohm resistor carrying a current of 3 amps. Using the formula P=I²R, where P is power, I is current, and R is resistance, we can calculate the power dissipated in the resistor.
Plugging in the given values, we get P=(3A)² x 4Ω = 36W.
It is important to note that power dissipation in a resistor is directly proportional to the current flowing through it and the resistance of the resistor. This means that as the current increases, the power dissipated in the resistor also increases, and vice versa. Additionally, the higher the resistance, the higher the power dissipation.
Therefore, it is important to choose a resistor with an appropriate power rating to avoid overheating and potential damage to the circuit.
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3) which is not a way to minimize your exposure to radiation? * 1 point a) wearing a lead apron b) keeping a good distance c) standing behind a thick concrete wall d) wearing lead-lined gloves e) staying a longer time
Cloth is able to block the comparatively sluggish alpha radiation particles. Synthetic fabric (ideally, specialist clothes, such as HAZMAT suits), which covers the entire body, can block beta radiation particles, which are smaller and move faster.
Alpha and beta radiation particles can, of course, harm the body if they are inhaled, thus it is important to protect the airways (nose and mouth), even with a dust mask and more efficiently with a regular respirator. Hands and eyes should both be covered (goggles, gloves). The devastation of stem cells, which is what caused the first responders at Chernobyl to perish, is the primary cause of acute radiation sickness. StemRad efficiently shields tissue that contains these cells, preventing radiation sickness while preserving mobility.
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; How do engineers make a difference in the world and with proof ?
Which type of forming operation produces a higher quality surface finish, better mechanical properties, and closer dimensional control of the finished piece?A. Hot working.B. Cold working.
Answer:
Option B (Cold working) would be the correct alternative.
Explanation:
Cold working highlights the importance of reinforcing material without any need for heat through modifying its structure or appearance. Metal becomes considered to have been treated in cold whether it is treated economically underneath the material's transition temperature. The bulk of cold operating operations are carried out at room temperature.The other possibility isn't linked to the given scenario. Therefore the alternative above is the right one.
Some crawl space foundations are completely sealed without any vents becuase
Some crawl space foundations are completely sealed without any vents because it is believed to be more energy-efficient and helps prevent moisture from entering the crawl space. However, this can also lead to the buildup of harmful gases, such as radon, and make it difficult to regulate temperature and humidity levels.
What are crawl space foundations?
Crawl space foundations are a type of foundation commonly used in residential and small commercial construction. They are built by creating a shallow space between the ground and the bottom of the first floor of the building. This space is typically about two to four feet in height and is called a crawl space because it is only large enough for someone to crawl through.
The foundation walls of a crawl space are typically made of concrete or masonry, and they rest on footings that are placed below the frost line to prevent damage from soil movement. The floor of the crawl space may be a poured concrete slab or simply a dirt floor.
Crawl space foundations have several advantages over other types of foundations. They are typically less expensive to build than full basements or slab-on-grade foundations, and they provide easier access to plumbing and electrical systems that may need to be installed or repaired. Crawl spaces can also be used for storage in some cases.
Therefore, it is important to properly insulate and ventilate sealed crawl spaces to ensure proper air circulation and prevent potential health hazards. Additionally, proper drainage systems should be installed to prevent water buildup and damage to the foundation.
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lists at least 6 units of measuring atmospheric pressure
Answer:
On my console displays for the ISS visiting vehicles, three units are used. The Americans use pounds per square inch (psi). The Russians use kilopascals (kPa). The Japanese use Torr - millimeters of mercury (mmHg). A fourth unit is simply the atmosphere, or multiples of it. So, for example, sea level air pressure (which is what we use onboard ISS) is defined as 1 atmosphere. That is equivalent to 14.7 psi, 101.3 kPa, or 760 mmHg.Here N represents newton which is SI unit of Force which is same as Kg.m/s2." role="presentation" style="display: inline-table; font-style: normal; font-weight: normal; line-height: normal; font-size: 15px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">2.2.
m represent metre which is SI unit of length.
Kg represent Kilogram which is SI unit of Mass.
m2SI" role="presentation" style="display: inline-table; font-style: normal; font-weight: normal; line-height: normal; font-size: 15px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">2SI2SI unit of Area.
Hope it helps.
Thanks.
Answer:
Pounds per square inch (psi)
Kilopascals (kPa)
Millimeters of mercury (mmHg)
Pascal (Pa)
Megapascal (MPa)
Atmospheric pressure (atm)
Hope this helps!
if the old radiator is replaced with a new one that has longer tubes made of the same material and same thickness as those in the old unit, what should the total surface area available for heat exchange be in the new radiator to achieve the necessary heat exchange rate at the recommended temperature gradient?
First of all, we need to find the total surface area of the old radiator which is; 3/2* area of old radiator.
From the question that we have been given,
We can say that the Thermal conductivity is the same for both radiators.
We can use the following formula to get the surface area of the new radiator;
K = Q/A*ΔT
change in T = ΔT
So, we can say the surface area for the new radiator is 3/2* area of the old radiator.
A heat exchanger
This is a heat transfer device, usually used to in transferring heat from one source to another and eventually to a working fluid. This heat exchangers are very vital in the cooling and heating processes. The fluids can be separated to avoid mixing. They are normally in many places such as, refrigeration, space heating, power plants etc.
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When is fall protection required in the construction industry
the 4 classes of (fill in the blank) threats are: hardware threats environmental threats electrical threats maintenance threats
There are four categories of physical threats: Threats to hardware include physical harm to workstations, routers, switches, and servers.
A threat in the context of computer security is a potential negative action or occurrence made possible by a vulnerability and leading to an unintended effect on a computer system or application.
A threat can be an "accidental" negative event (such as the possibility of a computer malfunctioning or the possibility of a natural disaster event like an earthquake, fire, or tornado) or a negative "intentional" event (such as hacking: an individual cracker or a criminal organization).
This differs from a threat actor, who is a person or group that is capable of carrying out the threat action, such as finding a vulnerability and exploiting it to cause harm.
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ihjpr2 ywjegnak'evsinawhe2'qwmasnh ngl,;snhy
Answer:
ummm ok?
Explanation:
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When an ordinarily elastic material cracks brittlely, there is little or no outward trace of material deformation prior to failure.
Explain about the Brittle fracture?The plastic deformation that occurs before failure is minimal or nonexistent in brittle fractures. Glasses, ceramics, as well as various polymers and metals, frequently fracture in a brittle way.
When a material is exposed to forces below its yield limit, brittle fractures take place. A ductile material is typically the foundation for machine design, and the design criteria are intended to prevent plastic and, in some circumstances, elastic deformations.
Material that has undergone either no plastic deformation or very little plastic deformation prior to fracture is said to have fractured with brittleness. Since they all share this quality, brittle materials include rock, concrete, glass, and cast iron.
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When a closed path is broken, it is called a(n): a) load b) overload c) open circuit d) short circuit.
When a closed path is broken, it is called a(n): c) open circuit.
An open circuit is a type of electrical circuit that does not have a closed path for the electrical current to flow through. This means that the circuit is "broken" or "open" and the electrical current cannot flow from the power source to the load. As a result, the electrical devices connected to the circuit will not work. This is different from a short circuit, which occurs when the electrical current bypasses the load and flows directly back to the power source, causing an overload and potentially damaging the circuit.
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At steady state, a thermodynamic cycle operating between hot and cold reservoirs at 1000 K and 500 K, respectively, receives energy by heat transfer from the hot reservoir at a rate of 1500 kW, discharges energy by heat transfer to the cold reservoir, and develops 1000 kW of power. Determine the rate of entropy production and then comment on whether this cycle is possible or impossible, and why.
Answer:
Wmax = 750 kw < power developed ( 1000kw ) for a reversible the cycle is Impossible
Explanation:
Hot reservoir Temperature = 1000 K
Cold reservoir Temperature = 500 K
Heat transfer ( energy received by Hot reservoir ) ( Q ) = 1500 kW
Heat transfer ( energy received by Cold reservoir via Hot reservoir ) = 1000 Kw
Calculate the rate of entropy production
The higher the entropy production the less efficient the system
Δs = Cp In ( T2 / T1 )
power developed = 1000 kW
considering that the cycle is reversible and the constant volume or constant pressure of the substance in the thermodynamic cycle is not given we will use the efficiency to determine if the cycle is possible or not
Л = efficiency
∴Л = 1 - T2 / T1 = 1 - ( 500 / 1000 ) = 0.5
note as well that; Л = work output / work input = Wmax / Q
= 0.5 = Wmax / Q
∴ rate of entropy production = Q ( 0.5 ) = 1500 * 0.5 = 750 kw
Given that Wmax = 750 kw < power developed ( 1000kw ) for a reversible the cycle is Impossible
Question 2
Salt in crude oil must be removed before the oil undergoes processi
fed to a washing unit where fresh water fed to the unit mixes with t
the sal contained in the oil. The oil (containing salt but no water), be
can be removed at the top of the washer. If the "spent" wash water
oil contains 5% salt, determine the concentration of the salt in the w
crude oil (with salt) to water used is 4:1.
The concentration of the salt in the w crude oil (with salt) to water used is 4:1 is 0.0061.
What is crude oil?
Crude oil is a hydrocarbon mixture that exists in liquid form in natural subterranean reservoirs and stays liquid at atmospheric pressure after passing through surface separation facilities.
The salt content of "spent" wash water is 15%.
5% of crude oil is salt.
The crude oil (with salt) to water ratio utilised is 4: 1.
Crude oil fraction:
95% of crude oil = 0.95
0.95F1 = x1E1
0.95(100) = x1E1
95= x1E1
E1 = 95/X1
wash water fraction:
15% of wash water = 100% -15% = 85%
= F2 = 0.85E2
salts fraction:
0.05F1 = (1-X1)E1 + 0.15E2
0.05F1 = (1-X)95/X1 + 0.15(F2/0.85)
0.05F1 = 95/X1 - 95 + 0.15(F2/0.85) (SINCE = 95.588 = 95/X1 = 99.38)
0.05(100) = 95/X1 - 95 + 17.61(1/4F1)
5 = 95/X1 - 95 + 4.41
Fraction of salts = 1- X1 = 0.0061
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If you measure 0.7 V across a diode, the diode is probably made of
Answer:
Made of Silicon.
Explanation:
A diode is a semiconductor device use in mostly electronic appliances. It is two terminals device consisting of a P-N junction formed either in Germanium or silicon crystal.
Diode can be forward biased or reverse biased.
When a diode is forward biased and the applied voltage is increased from zero, hardly any current flows through the device in the beginning.
It is so because the external voltage is being opposed by the internal barrier voltage whose value is 0.7v for silicon and 0.3v for germanium.
If you measure 0.7 V across a diode, the diode is probably therefore made of Silicon.
TUICUS
4. What are the physical meanings of the Lennard-Jones parameters and how can they be deter-mined from viscosity data? Is the determination unique?
Answer:
yea of cose you can do it physical inwesment a long risalt can wery high coletty so do it you can
A 20cm-long rod with a diameter of 0.250 cm is loaded with a 5000 N weight. If the diameter of the bar is 0.490 at this load, determine: I. the engineering stress and strain, and [2] II. the true stress and strain
If the diameter of the bar is 0.490 at this load, determine I. the engineering stress and strain, and [2] II. the true stress and strain is 1561. 84 MPa.
What is strain?Strain is a unitless degree of ways a great deal an item receives larger or smaller from an implemented load. Normal stress happens while the elongation of an item is in reaction to an everyday pressure (i.e. perpendicular to a surface), and is denoted via way of means of the Greek letter epsilon.
L = 20 cm d x 1 = 0.21 cmdx 2 = 0.25 cmF=5500 a) σ= F/A1= 5000/(π/4x(0.0025)^2)= 1018.5916 MPa lateral stress= Ad/d1= (0.0021-0.0025)/0.0025 = - 0.1 longitudinal stress (ɛ_l)= -lateral stress/v = -(-0.16)/0.3(assuming a poisson's ration of 0.3) ε_l=0.16/0.3 = 0.5333b) σ_true= σ(1+ ɛ_I)= 1018.5916(1+0.5333 = 1561.84 MPa.Read more about the diameter :
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