a) If the pipe rises at a 30° angle, the ranger station's maximum elevation, z, above the lake is 290 feet.
b) As we descend, the lake's pressure always rises. In comparison to point 2, point 3 has higher pressure. Because the rise in pressure is offset by the fall in datum, pump power remains constant for the same height, z=290 feet.
What is pressure?In the physical sciences, pressure is referred to as the stress at a point within a confined fluid or the perpendicular force per unit area. The force divided by the area over which it is exerted, or half a pound per square inch, determines the pressure that a 42-pound box with an area of 84 square inches at the bottom places on a floor.
Atmospheric pressure, which is roughly 15 pounds per square inch at sea level, is the amount of weight that the atmosphere exerts on each unit area of the Earth's surface. In SI units, pressure is expressed in pascals, where one pascal is equal to one newton per square meter. The atmosphere has a pressure of almost 100,000 pascals.
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hydraulic systems utilize pascal's principle by transmitting pressure from one cylinder (called the primary) to another (called the secondary). a certain hydraulic system is designed to exert a force 95 times as large as the one put into it. show answer no attempt 33% part (a) what must be the ratio of the area of the secondary cylinder to that of the primary cylinder?
The ratio of the area of the secondary cylinder to the area of the primary cylinder must be 95:1 .
What is ratio ?
A ratio in mathematics demonstrates how many occasions one number is present in another. For instance, if a dish of fruit contains eight oranges and six lemons, the ratio of orange to lemons is 8 to 6 (that is, 8:6, which is equivalent to the ratio 4:3). The ratio of oranges to the overall amount of fruit is 8:14, and the ratio for lemons to oranges is 6:8 (or 3:4). (or 4:7). A ratio can have any number of quantities, such as count of people or things or measurements of length, weight, time, etc. Both numbers must be positive in most situations.
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a constant-volume thermometer measures 82.9 kpa at 500 k. what is the pressure at water's triple point? type your answer here
The pressure measured at the boiling point of water is 55K P a
How to calculate the pressure measured at the boiling point of water ?The amount of force applied to a certain region is referred to as pressure.
The definition of pressure is "force applied per unit area." It can be calculated mathematically using P=FA, where F is the force acting perpendicular to surface area A. The pascal (Pa), or one newton per square meter (N/m 2), is the common unit of pressure.
Given,
Pressure measured by a constant volume gas thermometer at the triple point of water,
[tex]P_{tr}[/tex]= 40KPa = 40*10³P a
The boiling point of water, T=100° C=373.16K
Let the pressure measured at the boiling point of water be P.
For a constant volume gas thermometer, temperature pressure relation is given below
T= P/[tex]P_{tr}[/tex] *273.16K
P =t * [tex]P_{tr}[/tex]/273.16
373.16×40×10 ³/ 273.16
=54620Pa
=5.42×10³ Pa≈55KPa
Therefore the pressure measured at the boiling point of water is 55K Pa
The complete question is : The pressure measured by a constant volume gas thermometer is 40kPa at the triple point of water. What will be the pressure measured at the boiling point of water (100°C)?
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the most desirable form of integrated waste management is: a. recycling. b. source reduction. c. reuse. d. combustion.
Answer: C
Explanation:
The most desirable form of integrated waste management is source reduction. The correct option is b.
What is waste management?
The method a company employs to dispose of, reduce, reuse, and prevent trash is known as a waste management system.
Recycling, composting, incineration, landfills, bioremediation, waste to energy, and waste minimization are a few potential waste disposal techniques.
These services have the potential to save your company a sizable sum of money while simultaneously protecting the environment.
The elimination of trash before it is formed is known as source reduction, commonly referred to as waste prevention or pollution prevention.
In order to lessen the quantity or toxicity of what is thrown away, materials and products must be designed, manufactured, bought, or used. Stopping waste at the source implies preventing it from occurring.
Thus, the correct option is b.
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you have probably heard that hurricane harvey was a 1,000 year rainfall event. but the term rainfall event is not the same as a flooding event, one measures the amount of precipitation the other measures river discharge. the highest discharge on buffalo bayou for hurricane harvey was 32,600 cfs. was hurricane harvey a 100-year flooding event (or greater) at the stream gauge on buffalo bayou? you calculated the 100-year event in question 9.
Since discharge of hurricane was 23300cfs which is less than 23730 so no it was not 100 year but less than that.
So, second option is the correct option.
What is a hurricane?A tropical storm that has sustained winds of 74 mph or more is considered a hurricane. A storm's eye typically measures 20 to 30 miles in width and can reach 400 miles. A storm can be dangerous due to the torrential rains, strong winds, and storm surges.
A hurricane can travel the entire length of the Eastern Seaboard and last for up to two weeks over open water.
A hurricane's 74–160 mph winds can reach hundreds of miles inland. Tornadoes can develop in hurricanes, increasing the storm's potential for destruction. Floods and flash floods brought on by torrential rains also result in property damage and fatalities.
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two identical synchronous machines, each rated 60 mva, 15 kv, with a subtransient reactance of 0.1pu, are connected through a line of reactance 0.1pu on the base of the machine rating. one machine is acting as a synchronous generator, while the other is working as a motor drawing 40mw at 0.8pf leading with a terminal voltage of 14.5kv, when a symmetrical three-phase fault occurs at the motor terminals. determine the subtransient currents in the generator, the motor, and the fault by using the internal voltages of the machines
For the Generator: The generator's internal voltage and the sub transient circuit's reactance are used to determine the sub transient current in the generator.
Internal Voltage = 15,000 V
Reactance = 0.10 pu
Subtractive Current = External Voltage / Reactance (15kV / 0.1pu = 150A)
For the Motor: The Terminal Voltage, Power Factor, and Resistor of the Sub transient Circuit are used to determine the Sub transient Current in the Motor.
The terminal voltage is 14.5 kV.
The power factor is 0.8.
Reactance = 0.10 pu
What is voltage ?
Voltage, also referred to as electric tension, electric pressure, or (electric) voltage source, is the difference in battery powered potential between two places. It is equivalent to the labor required to transfer a test charge between two places in a static electric field.
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The technique whereby a portion of the lines of k space are "sampled" and "filled" and the remaining lines are interpolated is known as all of the following EXCEPT:
a.half fourier
b.partial fourier
c.fractional fourier
d.interleaved acquisition
The technique whereby a portion of the lines of k space are "sampled" and "filled" and the remaining lines are interpolated is known as all of the following except:
d. Interleaved Acquisition
What does interpolated mean?
When something is spoken or written, an interpolation is a break in the flow or an addition. Interpolation occurs when your best friend repeatedly cuts you off while you're talking about a particularly eventful day to add details.
It has a very similar meaning to that. Interpolations are when you tell a story and then add a few new details. While you're telling the story, if someone else interpolates new details, that counts as well.
Every time a copy of an ancient book was printed, a new interpolation was added. The original is improved in some way by all interpolations.
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An ac voltmeter is to be used to measure the rms voltage across the 15kOhm resistor in the circuit shown in Figure 7. If the voltmeter uses half-wave rectification and a 100µA of D'Arsonval meter movement, if it is set on its 10V range, and if Rm-1.5k, what reading will be obtained. Given V=20Vrms, R¹=25kOhm, R²= 15kOhm
Answer: the solution is in the photo below
Explanation:
explain why a prefabricated steel stair is most commonly used even in buildings that are built with a reinforced concrete frame structure.
Steel can support a lot of weight and is nearly five times as robust as concrete. A steel staircase may be constructed with a lot less material than a concrete one and is stronger than a concrete one.
Concrete has a high compression strength, which means it can withstand being forced together with force. The most common material used to build a stairway is concrete because of its exceptional ability to be shaped into any complex design. Timber will always be susceptible to damage from the elements and wood-eating insects, regardless of how much chemical treatment it receives. Rain and snow can quickly deteriorate a wooden staircase if it is outside.
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Can someone solve this please
i cant solve this but good question
technician a says that a drop in the coolant level in the surge tank or coolant overflow reservoir when the engine cools indicates an internal engine leak. technician b says that the drop in the level is normal. who is correct?
Technician B is correct. The drop in the coolant level in the surge tank or coolant overflow reservoir when the engine cool is normal.
The silicate dropout happens when the antifreeze/coolant has been used past it existence expectancy and the components are damaged. This goo might have ended up plugging the system, plus the silicate is a part of the corrosion inhibitor package. A borescope is used: for inspecting inner passages for proof of a coolant leak. Nitrite is common in coolants for heavy-obligation diesel engines and a few older engines. It facilitates defending iron from corrosion and cavitation.
Basically, coolants are available in three types:
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Erosional retreat of a ______ leads to enlargement and extension of a wave-cut platform in the inland direction.
A wave-cut platform grows and extends inland as a result of the erosional retreat of a wave-cut cliff.
A wave-cut platform, beach platform, coastal bench, or wave-cut cliff is the short flat area typically found at the base of a sea cliff or along the shoreline of a lake, bay, or sea that was produced by erosion. Wave-cut platforms are frequently most noticeable during low tide, when they are revealed as huge expanses of flat rock. The platform may occasionally have its landward side covered by sand, creating a beach, and then become invisible unless during low tides or storms when the sand is moved.
Wave-cut platforms are created when damaging waves strike the cliff face and create an undercut between the high and low water marks. This undercut is primarily caused by abrasion, corrosion, and hydraulic action, which results in a wave-cut notch.
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A laminar boundary layer velocity profile is approximated by the two straight-line segments indicated in Fig. P9.30. Use the momentum integral equation to determine the boundary layer thickness, δ S(x), and wall shear stress, Ep-Fn(x). Compare these results with those in Table 9.2. δ/2 lu 2U U Figure P9.30
When a flow is accelerating and Ue(x) = (Uo/L)x, the von Karman boundary-layer momentum integral equation can be used to calculate how the wall shear stress varies with downstream distance.
According to the principle of conservation of momentum, the rate at which momentum accumulates in a control volume is equal to the net rate of momentum entering the volume (also known as the momentum flux) plus the total of all external forces acting on the volume. Applied in the x-direction, this vector equation. The fundamental governing equations for a viscous, heat-conducting fluid are the Navier-Stokes equations. It is also known as the momentum equation and is a vector equation that is created by applying Newton's Law of Motion to a fluid element.
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Compare the manner in which the aggregate particles become bonded together in clay-based mixtures during firing and in cements during setting.
Cement bond forms at room temperature, which is the primary difference.
What is room temperature?A range of air temperatures that most people favor for indoor settings is referred to colloquially as "room temperature." When wearing typical indoor clothing, it feels cozy to the wearer. Depending on factors such as humidity, airflow, and other variables, human comfort may go beyond this range. Food and drinks may be served either warm or cold, or at room temperature.
The term "room temperature" can refer to a variety of established ranges in some contexts and in some disciplines, such as science and engineering. The air (or another medium and surroundings) in a specific location's actual temperature, as determined by a thermometer, is known as the ambient temperature. An ideal room temperature and the ambient temperature can differ greatly. An example of this would be a room that is not heated in the winter.
Cement begins to set when combined with water. Various cement constituents hydrate during mixing, and mineral hydrates solidify as a result of a series of chemical reactions involving hydration. Some of these components function as a bonding phase, giving cement its structure and ultimately its strength. Additionally, the bonding phase for clay-based aggregates develops after cooling, when the glassy liquid that was formed during firing.
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g florida international university pedestrian bridge collapse capacity, the ability of the material/structure to safely resist load without breaking or damage, depends on?
The ability of the material/structure to safely resist load without breaking or damage, depends on Ductility.
What is Ductility?A material's ability to be drawn from is known as its ductility, a mechanical property (e.g. into wire). The amount of plastic deformation under tensile stress that a material can withstand before failing is known as ductility in the field of materials science. Engineering and manufacturing both place a high priority on ductility.
It specifies a substance's suitability for particular manufacturing processes (like cold working) and its ability to withstand mechanical overload. Copper and gold are a couple of the metals that are typically referred to as ductile. All metals, however, do not necessarily fail ductilely; some, like cast iron, can fail brittlely. Because they typically permit plastic deformation, polymers can be thought of as ductile materials.
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a recent engineering graduate designs a small steel structure for a client using educational structural design software leftover from college. he later learns that the software gives accurate stress analysis for tension, but does not properly predict buckling of columns in compression. he purchases the professional version and a revised analysis shows that the building is not as safe as first believed. a large snowfall would create a static load that could cause the supporting columns to buckle and the building to collapse. the probability of this snowfall occurring is once every 10 years. what should the engineer do?
In order to make the structure safe in the case of a significant snowfall, the engineer should warn the customer of the hazards associated with the design and suggest that it be strengthened or rebuilt. The engineer should also advise the client to think about acquiring more reliable structural design tools for future projects.
What is software?
Software is a group of computer programmes, along with related documentation and data. The system, which carries out the work, has been constructed. Executable code is the lowest level of programming, and it consists of machine instructions that are supported by a single processor, usually a central processing unit (CPU) or (GPU).
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The variable planet_distances is associated with a dictionary that maps planet names to planetary distances from the sun. Write a statement that deletes the entry for the planet name "Pluto".
In Python
A statement that deletes the entry for the planet name "Pluto" is given as del planet_distances["Pluto"].
What is variable?A variable in programming is a value that is subject to change based on external factors or input. Typically, a program is made up of data that the program uses while it is running and instructions that tell the computer what to do.
Constants or fixed values that never change make up the data, while variables (whose initial values are typically set to "0" or some other default value because the program's user will supply the actual values) are also present. In most cases, certain data types are used to define both constants and variables.
The form of the data is dictated by and constrained by each data type. Examples of data types include a decimal representation of an integer or a string of text characters that is typically constrained in length.
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A pressure gauge that can be modeled as an LTI system has a time response to a unit step input given by y(t) = (1 - e^-t -te^-t)u(t). From the step response determine the transfer function. For an unknown input x(t), the output is observed was y(t) = (2 - 3e^-t + e^-3t)u(t). From this observed measurement, determine the true pressure x(t) that was applied to the gauge.
A pressure gauge that can be modeled as an laplace transform system has a time response (2+4e^-3t)4t is the input x(t), the output is observed was y(t) = (2 - 3e^-t + e^-3t)u(t)
Response to unit step for a pressure gauge= (1 - e^-t -te^-t)u(t).
Taking laplace transform
Y(s)=1/1/s+1-1/(s+1)²
Y(s)=1/s(s+1)²
Input = U(t) so X(s)=1/s
Transfer function of system Y(s)/x(s)
H(s)=Y(s)/X(s)=1/s(s+1)²/1/s=1/(s+1)²
Y(s)=2/s-3/s+1+1/s+3
=6/s(s+1)(s+3)
X2(s)=2/s+4/s+3
X2(t)=(2+4e^-3t)4t
The Laplace transform is an integral transformation that turns a given derivative function with a real variable (t) into a complex function with a variable (s). Assuming f(t) satisfies a set of later-explained conditions, let's say it is given for t 0.
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what happens when an hsrp active router fails? (select two.) answer additional hsrp member routers transition from the listen state after the holdtime
The HSRP standby router becomes the active router after the hold time expires on the hello message. Additional HSRP member routers transition from the listen state after the hold time expires on the hello message.
What happens when an HSRP active router fails?
When troubleshooting HSRP systems, network engineers are most likely to encounter the Active Change State Error. According to the messages, a standby HSRP router or switch is not getting three consecutive HSRP hello packets from its HSRP peer.The flaw indicates that the standby switch switches from standby to active. Currently, if this error message occurs during the underlying establishment, the switch returns to the standby mode. The error message in this instance is most likely not caused by a HSRP problem.Additional HSRP member routers transition from the listen state after the hold time expires on the hello message.To learn more about HSRP router, refer to
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The following is NOT a metric value.
a. Decimeter.
b. Octimeter.
c. Millimeter.
d. Meter.
Answer:
b. Octimeter
Explanation:
no such measurement/value.
the programming practice is centered on creating objects. question 8 options: object-centric procedural object-oriented objective
The practice of procedural programming is centered on the creation of objects. Procedures are simply a set of computational steps that must be followed.
What is procedural programming ?Procedural programming is a programming paradigm derived from imperative programming that is based on the procedure call concept. Procedures are simply a set of computational steps that must be followed.Some of the most common types of programming languages used by script and software developers are procedural languages. They write programmes that use functions, conditional statements, and variables to allow a computer to calculate and display a desired output.Event-driven programming is another programming paradigm with which procedural programming can be contrasted. In this approach, procedures are only called/executed in response to events such as mouse clicks, keyboard presses, attaching or removing a device, receiving data from an external source, and so on.To learn more about procedural programming refer :
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technician a says that a spiral cell (optima battery) is not considered a sealed lead-acid (sla) battery. technician b says that an absorbed glass mat (agm) battery is not considered a sla battery. who is correct?
Neither technicians A and B are correct. All kinds of optima cells need a sealed lead-acid battery. Meanwhile, an absorbed glass mat (AGM) battery is considered an SLA battery.
All kind of optime batteries are SLA AGM batteries, very resistant to vibrations and ready to operate in any position. Each of Optima's six cells uses AGM plates to keep the acid in place. These are wound into precisely compressed spiral cells and inserted into the case. Sealed Lead Acid (SLA) and Valve Regulated Lead Acid (VRLA) are two different abbreviations for the similar cell. Absorbed Glass Mat (AGM) refers to a shape of SLA/VRLA in which the electrolytes are soaked into dividers throughout plates made out of sponge-like thin glass fibretion matting.
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technician a says that the differential in a fwd vehicle is in the transaxle assembly. technician b says that the differential assembly is attached to the final drive ring gear. which technician is correct?
According to technician B, the differential assembly is correctly linked to the drive wheels ring gear.
What is Gear?
A gear is a rotating , circular machine element with teeth that can be cut, or in the case of a cogwheel or gearwheel, they can be inserted. These teeth, known as cogs, mesh with another grooved part to transfer (convert) torque and speed. The basic idea underlying how gears work is comparable to the fundamental idea behind how levers work. Cog is another casual term for a gear. Geared devices can vary the speed, torque, and orientation of a power supply.
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A company currently uses passwords for logging in to company-owned devices and wants to
add a second authentication factor. Per corporate policy, users are not allowed to have smartphones
at their desks. Which of the following would meet these requirements?
(A). Smart card
(B). PIN code
(C). Knowledge-based question
(D). Secret key
Option D is the right response. In cryptography, encryption is the process of encoding data.
Put a password manager to use. In this case, password managers come in handy. For identifying purposes, users are frequently given a user ID. Authentication occurs when the user submits credentials, like a password that precisely matches their user ID. In single-factor authentication, a user ID and password are required (SFA). A biometric device is an identifying instrument that uses a human's physical or behavioral traits. The most popular biometrics based on human physical characteristics are hardware devices like fingerprint scanners, iris scanners, and palm readers. For biometrics based on behavioral traits, software is a typical format.
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In a practical machine the power output is less than the power input considering the law of energy conservation what can explain this occurrence.
Explain on a structural basis the differences in the glass transition temperature of polyethylene ( =-140°C), polyvinylchloride (T-87 C), and polysityrene (Tg= 100 c)
The "glass transition" temperature is the point at which it happens. For instance, low-density polyethylene has a glass transition temperature, or Tg, of about 100°C.
He claims that the fact that the Tg of PVC/CF composite is higher (86.7 °C) than the Tg of pure PVC (76.8 °C) suggests that there is a physical contact between the polymer and the CF surface, which reduces chain mobility and free volume and increases Tg. Pressure and free volume. Increased surrounding pressure causes a decrease in free volume, which ultimately results in increased Tg. The glass transition temperature of polymers is also significantly influenced by other elements such as branching, alkyl chain length, bond interaction, flexibility of the polymer chain, film thickness, etc.
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4. calculate the head h that will produce a flow rate of 0.085 m3/s and a turbine power output of 15 kw. ignore losses.
The head h that will produce h will be 23.92 meters.
What are the principal reasons for head loss?The head, pressure, or energy (they all refer to the same thing) expended by water moving in a pipe or channel due to turbulence brought on by the water's speed and the roughness of the pipe, channel walls, or fittings. Friction losses cause water moving through a pipe to lose head.
What head loss in a pipe is acceptable?The normal pipe head losses in small high-head, low-flow hydro systems range from 10% to 20%. Pipe head losses are typically only a few percent in low-head systems.
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The time complexity for searching an element in a binary search tree is a. O(n) b. O(log n) c, 0(n log n) d, 0(#2) 20. The time complexity for inserting an element into a binary search tree is a. O(n) b. O(log n) c. O(n log n) d, 0(#2)
The time complexity for searching and inserting an element in a binary search tree is O(n). Thus, for both questions option, 'A' holds the correct answer.
A binary search tree is a node-based data structure that has the following properties: the left subtree of a node has only nodes with keys lesser than the node’s key; the right subtree of a node has only nodes with keys greater than the node’s key; the right and left subtree each must also be a binary search tree. The major three operations to be performed on a binary search tree are searching, inserting, and deleting an element. The time complexity for all these operations is O(n). Since, searching, inserting, and deleting an element in a binary search tree requires traversing all elements, giving the worst-case time complexity of O(n).
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technician a says that when using plastigauge, plastigauge that becomes wider indicates a smaller oil clearance between a crankshaft and main bearing. technician b says the plastigauge will become narrower when bearing oil clearances are smaller. who is correct?
Each Tech is correct. The clearance between the crankshaft and X and Y on the bearing is measured using plactigage, according to Tech A, while the clearance is measured using a dial indicator, according to Tech B.
A thin calibrated plastic strip serves as a plastic gauge. It can be used to measure gaps and monitor bearing clearance. It is utilized at locations on crank or connecting rod bearings where a micrometer measurement cannot be made quickly. You must use cylinder liner shims or a bigger flange height cylinder liner to increase the protrusion height if the new cylinder liner falls short of the engine manufacturer's specifications.
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What are the benefits and drawbacks of using superconducting materials to transport energy.
Superconducting materials have a huge potential to bring about revolutionary advances in high-field magnet technology and electric power.
allowing for ultra-strong, tiny, light-weight electrical equipment, high-speed maglev transit, and electric power generator with excellent efficiency. The equipment can be drastically smaller because to the use of superconductivity in magnet applications. The drawback is that superconductive materials require extremely low temperatures—close to absolute zero—which raises the expense of operation. Only when kept below a specific temperature known as the transition temperature do superconducting materials truly superconduct. The temperature is significantly below 77 Kelvin, the temperature of liquid nitrogen, for currently understood practical superconductors.
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a cylindrical specimen of cold-worked copper has a ductility (%el) of 25%. if its cold-worked radius is 10 mm (0.40 in.), what was its radius before deformation?
The cylinder's radius before distortion is 7.5mm.
Deformity of a thing:-We learn that from the question that was asked;
The cylinder's cold work radius is 10mm.
Difficulty = 25%
Identify the radius prior to distortion.
Radius prior to deformation: (1-0.5) + 10
Radius before distortion equals 0.75 x 10
Radius = 7.5mm before deformation
Consequently, the cylinder's radius before distortion is 7.5 mm.
What do you mean by radius?The radius of a circle is the distance a circle's center from any point along its perimeter. Usually, "R" or "r" is used to indicate it. In practically all formulas involving circles, this amount is significant. In terms of radius, a circle's area and circumference are also calculated.
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