To compute the target inventory level and the number of 2-inch bolts that should be ordered, we'll consider the average demand, lead time, and desired safety stock.
- Average demand for 2-inch bolts: 150 per week (5 working days)
- Lead time: 2 days
- Safety stock: 3 days' supply
- Stock on hand: 130 bolts
1. Compute the target inventory level:
Target Inventory Level = Average Demand * (Lead Time + Safety Stock)
Target Inventory Level = 150/5 * (2 + 3)
Target Inventory Level = 30 * 5
Target Inventory Level = 150 units
2. Compute the number of 2-inch bolts that should be ordered this time:
Number of Bolts to be Ordered = Target Inventory Level - Stock on Hand
Number of Bolts to be Ordered = 150 - 130
Number of Bolts to be Ordered = 20 units
Therefore, the target inventory level is 150 units and the number of 2-inch bolts that should be ordered this time is 20 units.
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Technician A says that for any fuel to burn efficiently, it must be vaporized and fully mixed with the proper amount of air. Technician B says that small fuel particles are easier to vaporize. Who is correct?
Both technicians are correct
Explanation:
They are each correct for separate reasons. Tech A is correct due to pressure and temperature both being important factors and quantities to vaporize anything. Tech B is correct due to fuel particles being easier to burn due to their chemical structure.
The Green family has measured all the inputs and outputs of material goods to
their household. They found that in an average week, they purchased 50 kg of
consumer goods. Of this amount, 50% is consumed as food. Half of the food
consumed is used for energy and is released as CO2 and the remainder is
discharged to the sewer system. The Greens recycle 25% of the solid waste that is
generated. Approximately 1 kg accumulated in the house (Yikes!!). Estimate the
amount (kg) of solid waste they place in each the trash bin and the recycling bin
each week
The 255.5 kg/year waste is recycled per year. The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02. The percentage is just like the amount of that value but between 1 to 100 and it is very useful to predict for example if you say 678 then we have to know about the full number also but if you say 80% then it becomes clear.
Therefore, The 255.5 kg/year waste is recycled per year. The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
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what is the limiting drawing ratio of a metal with an average normal anisotropy of 6?
The specific values for thickness, strain hardening exponent, and other parameters are required to calculate the limiting drawing ratio, making it impossible to determine without further information.
What is the limiting drawing ratio (LDR) of a metal with an average normal anisotropy of 6?The limiting drawing ratio (LDR) of a metal is a measure of its ability to be formed into a thin, elongated shape without fracturing. It is determined by the material's anisotropy, which represents the directional variation in mechanical properties.
In this case, the metal has an average normal anisotropy of 6. The LDR can be calculated using the equation:
LDR = (t_f / t_i)ⁿ
where t_f is the final thickness, t_i is the initial thickness, and n is the strain hardening exponent.
However, the specific values for t_f, t_i, and the strain hardening exponent are not provided in the given information. Without these values, it is not possible to determine the exact LDR for the metal.
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elect the statement that best answers the following question which change to the coffee solution changed the ph of the solution? adding more coffee to the coffee initially in the container. adding more water to the coffee in the container. draining some of the coffee solution from the container. all the changes to the solution changed the p
Option A is correct. adding more coffee to the coffee initially in the container.
When checking plumbing, the housing inspector's top priorities are to make sure that there is a reliable water supply system, a sufficient drainage system, and enough and suitable fixtures and equipment that do not contaminate water. This chapter covers the key components of a residential plumbing system as well as the fundamental terms and concepts that an inspector needs to be familiar with in order to spot plumbing-related housing code violations. Additionally, it will help the inspector find the more complicated flaws that need to be reported to the appropriate authorities.
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You have been working at a manufacturing site but have been
transitioned to a different part of the site with new responsbilities. When
should your employer train you on any chemical hazards in this new
responsibility?
Answer: The Hazard Communication Standard (HCS), 29 CFR 1910.1200 (h), requires all employers to provide information and training to their employees about the hazardous chemicals to which they may be exposed at the time of their initial assignment and whenever a new hazard is introduced into their work area.
Explanation: choose me as Brainliest
The required, if our new responsibilities involve working with hazardous chemicals, your employer should provide training on any chemical hazards before you begin working in that area
What are chemical hazards?Chemical hazards are any physical, chemical, or toxicological properties of a chemical that may cause harm to humans or the environment.
Here,
According to the Occupational Safety and Health Administration (OSHA) regulations, employers are required to provide hazard communication training to employees who may be exposed to hazardous chemicals as part of their job duties. The training must be provided at the time of initial assignment to a job involving exposure to hazardous chemicals, and whenever a new physical or health hazard is introduced to the workplace.
Therefore, if our new responsibilities involve working with hazardous chemicals, your employer should provide training on any chemical hazards before you begin working in that area. If any new hazardous chemicals are introduced into the workplace after your initial training, your employer should provide additional training on those specific hazards.
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Blank is common during exercise.
Answer:
Sweat
Explanation:
As you exercise you respire and warm up due to energy. In turn, two things happen, blood vessels vasodilate (irrelevant to you) and sweat glands sweat more. this sweat then evaporates and cools down the body.
Answer:
Hyperpnea is common during exercise
Explanation:
Edge 2023
what is the transfer function? what is the steady-state error, ess? what is the natural frequency? you can assume ra
The transfer function is a mathematical representation of the relationship between the input and the output of a system. The steady-state error, or ess, is the difference between the desired output and the actual output when the system reaches a steady state. The natural frequency is the frequency of the system's response without any external forces.
Transfer Function: Transfer Function is used in signal processing, control engineering, and other disciplines that deal with systems or signals. The ratio of output to input in Laplace transform is known as the transfer function.
Steady-State Error: The error that happens when the system is at a stable state is referred to as a steady-state error. The difference between the desired and actual response is known as steady-state error. A system's ability to track a specific input as time progresses is characterized by this kind of error. If the input signal is a unit step, then the steady-state error is referred to as the static error coefficient. The coefficient of the steady-state error is frequently used to classify systems in control engineering.
Natural Frequency: Natural frequency is a term used in physics to describe how quickly an object vibrates when it is set in motion. The number of oscillations made by a system in a given time period without any external force acting on it is referred to as its natural frequency. A natural frequency is a measure of a system's stiffness and mass. In a control system, it is the frequency at which the system oscillates in the absence of any input.
A natural frequency is also known as an undamped natural frequency or a resonance frequency, and it is represented by the symbol \(\omega_n\).You can assume the following in the problem. If you have any specific values, kindly provide them.
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When a light wave enters a medium of greater optical density, there will be a decrease in the wave's A) speed, only B) frequency, only I C) speed and wavelength D) frequency and wavelength
When a light wave enters a medium of greater optical density, there will be a decrease in the wave's **A) speed, only**.
The frequency of a light wave remains constant when it transitions between different media, so option B) frequency, only is not correct.
However, the wavelength of a light wave can change when it enters a medium with a different optical density, but it does not necessarily decrease. It can increase or decrease depending on the specific conditions. Therefore, option D) frequency and wavelength is not accurate.
The speed of light in a medium depends on the refractive index of that medium. When light enters a medium with a higher refractive index, its speed decreases. This is due to the interaction of light with the atoms or molecules of the medium, causing it to slow down. Thus, option A) speed, only is the correct answer.
While the wavelength of the light wave can be affected by the change in speed, it is not necessarily decreased. The relationship between speed and wavelength is inversely proportional, meaning that as the speed decreases, the wavelength can either increase or decrease depending on the specific conditions. Therefore, option C) speed and wavelength is not accurate.
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an action potential usually goes only in one direction in an axon because:
An action potential usually goes only in one direction in an axon because of the presence of refractory periods. During an action potential, sodium ions enter the axon, causing depolarization and the opening of voltage-gated potassium channels.
This leads to repolarization, where potassium ions exit the axon, causing hyperpolarization and a refractory period. The refractory period ensures that the axon cannot be stimulated again until it has returned to its resting state, preventing the action potential from moving backwards. Additionally, the axon has a higher density of sodium channels at the beginning of the axon, which facilitates the initiation of the action potential and further prevents it from moving in the opposite direction. Therefore, the combination of refractory periods and the differential distribution of sodium channels allows the action potential to travel only in one direction along the axon.
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A student used a 500-ml graduated cylinder to measure the volume of water in a 1-cup measure. three trials of the measurement gave volumes of 240 ml, 242 ml, and 235 ml. What is the average of the three measurements?
Answer:
239 mL
Explanation:
The average of any set of data is the sum of the values, divided by their number.
v = (240 +242 +235)/3 = 717/3 = 239 . . . mL
The average of the three measurements is 239 mL.
what's the difference between programming paradigms ?
Answer:
Programming paradigms are different approaches to programming. Each paradigm is concerned with the way code is written, structured, and organized. The main paradigms are procedural, object-oriented, functional, and logical. Each of these has its own set of rules and principles that guide how code is written and executed. Procedural programming focuses on implementing algorithms and breaking tasks down into smaller steps. Object-oriented programming focuses on breaking tasks down into objects and classes. Functional programming focuses on writing code that is easy to read and maintain. Logical programming focuses on using logic to solve problems.
Explanation:
Hope It Help You
Answer:
A programming paradigm is a style or approach to programming, characterized by the way in which the programmer writes the code. There are several different programming paradigms, including:
Explanation:
Imperative programming: This is the most traditional style of programming, in which the programmer writes code that specifies a series of steps to be carried out in order to solve a problem. Imperative programming languages include C, C++, and Java.
Object-oriented programming: In this style of programming, the programmer writes code in the form of objects, which are self-contained units that combine data and behavior. Object-oriented programming languages include Java, Python, and C#.
Functional programming: In functional programming, the programmer writes code in the form of functions, which are self-contained units that take input and produce output, without modifying any external state. Functional programming languages include Haskell, Lisp, and ML.
Logic programming: In this style of programming, the programmer writes code in the form of logical statements, and the language's runtime system is responsible for finding a solution that satisfies all of the statements. Logic programming languages include Prolog and Mercury.
Declarative programming: In declarative programming, the programmer specifies what the desired result should be, rather than how to achieve it. The language's runtime system is responsible for finding a way to produce the desired result. Declarative programming languages include SQL and regular expressions.
which of the following statements are true regarding elastic deformation? (3 answers are correct) group of answer choices emptying and filling a reservoir would result in elastic deformation of the crust fold structures are the result of elastic deformation isostatic uplift following deglaciation represents elastic deformation stress and strain are proportional stress and strain are not proportional
The correct statements are 2, 3 and 5. Elastic deformation is a temporary deformation of a material. When a force is applied to a material, it will deform, and the amount of deformation will be proportional to the force applied.
Elastic deformation refers to the reversible deformation of a material when a force is applied and it is released. When the load is removed, the material will return to its original shape. Elastic deformation is characterized by its capability to withstand stress without causing any permanent change in the shape of the material or its molecular structure. The following are the correct statements regarding elastic deformation: Stress and strain are proportional; hence, when stress is applied, the deformation or strain is proportional to the stress. Isostatic uplift following deglaciation represents elastic deformation. This statement is correct. Fold structures are the result of elastic deformation. This statement is correct.
Therefore, If the force is removed, the material will return to its original state. The explanation for elastic deformation is that the stress and strain are proportional, and the deformation will not cause any permanent change in the shape or molecular structure of the material.
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a simply supported beam has a length of 1.2 m. the cross section has a width of 140 mm and height of 240 mm. the weight density of the beam is 5.4 kn/m3 . calculate the maximum permissible value of the load p if (a) the allowable bending stress is 8.5 mpa, and (b) the allowable shear stress is 0.8 mpa.
The results of the calculations are (a) P = 37.97 kN and (b) P = 35.62 kN.
The surface won't be cut if you press the flat section of the knife against the fruit. The force is dispersed over a wide area.
Using the parameters and figure provided in the problem, we have:
A = b*h = 0.14*0.24 = 0.0336 m^2
S = (b*h^2)/6 = (0.14*0.24*0.24)/6 = 0.001344 m^3
q = 5400*0.0336 = 181.44 N/m
(a) The load P at 8.5 MPa = 8.5*106 Pa (allowable bending stress)
σ = M/S
M = *S thus equals 0.001344*8.5*106 = 11424 Nm.
Aside from that
M = (P*L/4) + (q*L^2)/8
11424 = (P*1.2/4) + (181.44*1.2^2)/8
11424 = 0.3*P + 32.6592
P = (11424-32.6592)/0.3 = 37.97 kN
(b) If (allowable shear stress) = 0.8 MPa, then the value of P is equal to 0.8*106 Pa.
(2*A*τ/3) = P/2 + q*L/2
(2*0.0336*0.8*10^6)/3 = P/2 + 181.44*1.2/2
17920 = P/2 + 108.864
P = (17920 - 108.864) * 2 = 35.62 kN.
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2-design a set of simple test programs to determine the type compatibility rules of a c compiler to which you have access. Write a report of your findings
When designing a set of simple test programs to determine the type compatibility rules of a C compiler to which you have access, it is important to consider the different data types that are used in C programming. An example of a set of test programs that can be used to determine the type compatibility rules of a C compiler:
Integer Test the compatibility of the C compiler with integer data types. It declares two variables of type int, initializes them with values, and then adds them together. The result is printed to the screen. If the program compiles and runs without any errors, then the C compiler is compatible with integer data types.
Floating-Point Test the compatibility of the C compiler with floating-point data types. It declares two variables of type float, initializes them with values, and then adds them together. The result is printed to the screen. If the program compiles and runs without any errors, then the C compiler is compatible with floating-point data types.
By running the set of simple test programs described above, you can determine the type compatibility rules of a C compiler to which you have access. If any of the programs do not compile or run without errors, then you can determine which data types are not compatible with the C compiler and adjust your code accordingly.
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What is the safe psi pressure for acetylene
Answer:
15psig
Explanation:
Write the equations of the forces and their dimensions which are
important in fluid mechanics
In fluid mechanics, important forces include gravitational force, pressure force, viscous force, and surface tension force. These forces play a crucial role in understanding the behavior of fluids.For example, pressure force has dimensions of force per unit area (N/m² or Pa), viscous force has dimensions of force per unit area per unit velocity gradient (N/m²·s), and surface tension force has dimensions of force per unit length (N/m).
Fluid mechanics is the study of how fluids (liquids and gases) behave under various conditions. Several forces are essential in analyzing fluid flow and understanding the forces at work.
The gravitational force is a fundamental force that acts on all objects with mass, including fluids. It causes fluids to exert pressure, which is the force per unit area exerted by a fluid. The pressure force plays a significant role in determining the direction and magnitude of fluid flow.
Viscous force is another critical force in fluid mechanics. It arises due to the internal friction between fluid layers moving at different velocities. This force opposes the relative motion of fluid layers and determines the resistance to flow.
Surface tension force is specific to liquid fluids and occurs due to the cohesive forces between molecules at the surface. It causes liquids to form droplets or rise in capillary tubes, affecting fluid behavior at the interface.
The dimensions of these forces are derived from their respective equations.
Understanding and quantifying these forces and their dimensions are crucial for analyzing fluid behavior, designing fluid systems, and solving fluid mechanics problems.
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A copper alloy cylinder that is 1.3 feet long with a diameter of 45.27 inch is subjected to a tensile stress of 1,140 psi along its length. Assuming this applied stress is purely elastic, calculate the diameter, in inches, of the cylinder under this load. For this alloy, the elastic modulus is 904,672 psi and the Poisson's ratio is 0.33.
Answer:
diameter = 45.251 inches
Explanation:
initial length = 1.3
initial diameter = 45.27
tensile stress = σ = 1140
modulus E = 904672
v = 0.33
we calculate longitudinal strain = σ/E
= 1140/904672
= 0.0012601252
general relation for
v = -Ed/El
\(0.33=\frac{-Ed}{0.0012601252}\)
we cross multiply
-Ed = 0.33 x 0.0012601252
= -0.00041584132in
\(\frac{df - 45.27}{45.27} =\frac{-0.00041584132}{1}\)
when we cross multiply,
df - 45.27 = -0.00041584132*45.27
df - 45.27 = -0.018825136
df = -0.018825136 + 45.27
df = 45.251 inches
Three single-phase loads in parallel are supplied from a 1400V (RMS), 60 Hz supply. The loads are as follows: Load 1: Inductive load: 125 kVA, 0.28 power factor Load 2: Capacitive load: 10 kW, 40 kVAR Load 3: Resistive load: 15 kW Find the total kW, kVAR, kVA, and supply power factor. (5 points) Find the capacitive correction (in kVARs) required to improve the power factor to 0.8 and calculate the supply current with this correction in place. (10 points) What is the least current that can service these three loads and how much compensation would it require
Answer:
The answer is below
Explanation:
\(\theta_1=cos^{-1}0.28=73.74^o\ lagging\\\\S_1=125\angle 73.74^o=35\ kW+j120\ kVAR\\\\S_2=10\ kW-j40\ kVAR\\\\S_3=15\ kW\)
Total power = P = 35 kW + 10 kW + 15 kW = 60 kW
Total kVAR = 120 kVAR - 40 kVAR = 80 kVAR
\(Total\ apparent \ power =S= S_1+S_2+S_3=(35+j120)+(10-j40)+(15)\\\\S=60\ kW+j80\ kVAR=100\angle 53.13^o\\\\Current(I)=\frac{S^*}{V^*} \frac{100000\angle -53.13^o}{1400\angle0}=71.43\angle-53.13^o\\ \\Power\ factor (PF)=cos(53.13)=0.6\ lagging\\\\The \ new\ power\ factor\ is\ to \ be\ 0.8[cos^{-1}0.8=36.87^o], hence\ since\ the\ total\ \\real\ power(P)= 60\ kW, the\ capacitor\ kVAR(Q_c)\ is:\\\\Q_c=60tan(53.13)-60tan(36.87)=80-45=35\ kVAR\\\\\)
\(C=\frac{Q_c}{wV^2} =\frac{35000\ VAR}{2\pi*60\ Hz*1400\ V}=47.38\ \mu f\)
New current (I') = \(\frac{S'^*}{V^*}=\frac{60000-j45000}{1400}=53.57\angle-36.87^o\)
Current reduce from 71.43 A to 53.57 A
Create a decision matrix that can be used to decide the changes that could be implemented in the design of an automobile, and explain how an engineer might find it useful.
Answer:
An engineer using a decision matrix to determine which one of his/her solution ideas meets the established criteria and constraints.
you are to evaluate a solar pv investment in a sunny location where each 1 kw of capacity generates on average 115 kwh/month year-round. the system size is 5 kw rated, and electricity in the region costs $0.12/kwh. what is the value of the output from the system per year?
The value of the output from the 5 kW solar PV system per year in a sunny location where each 1 kW of capacity generates 115 kWh/month year-round is estimated to be $1,620.
The calculation is as follows: (5 kW x 115 kWh/month x 12 months) x $0.12/kWh = $1,620. This figure is calculated by multiplying the system size of 5 kW with the monthly output of 115 kWh/month and then multiplying that by 12 months to get the total output for the year. This figure is then multiplied by the cost of electricity of $0.12/kWh to get the value of the output from the system per year.
The solar PV investment in a sunny location with a system size of 5 kW rated and electricity cost of $0.12/kWh is estimated to be worth $1,620 per year.
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What happens to the duty cycle for a GMAW Gun when 75Ar/25COzgas
is used instead of a 100% CO shielding gas?
So what happens is the host will not kill the y no se que hacer para no one can see it in
Suppose a manager of a certain mining company wants to determine the weekly food expenditure of the company’s employees. if there are 2,549 employees and the manager decided to use only 500 employees as a sample, who will be included in the sample? to help the manager make his decision, suggest a sampling technique to be used and state the whole process of selecting the participants
The sampling technique that can be used to selecting the participants will be a random sampling.
What is sampling?It should be noted that sampling simply a method in statistical analysis that predetermined observations are taken from the population.
In this case, the sampling technique that can be used to selecting the participants will be a random sampling. This is need to give everyone an equal chance of being selected.
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which structures contain voltage gated sodium channels and conduct action potentials bsc 2011
Voltage-gated sodium channels are found in axons of neurons and muscle cells, conducting action potentials and allowing for rapid transmission of electrical signals.
Voltage-gated sodium channels are specialized protein structures that are embedded in the membranes of the axons of neurons and muscle cells. These channels are responsible for generating and conducting action potentials, which are rapid changes in the membrane potential of the cell that allow for the transmission of electrical signals over long distances.
When a neuron or muscle cell is at rest, the voltage-gated sodium channels are closed, preventing the flow of sodium ions into the cell. However, when an electrical stimulus is applied to the cell, the voltage across the membrane rapidly depolarizes, causing the voltage-gated sodium channels to open. This allows positively charged sodium ions to rush into the cell, further depolarizing the membrane and triggering an action potential.
As the action potential spreads down the length of the axon, it triggers the opening of voltage-gated sodium channels in adjacent regions of the membrane, allowing the electrical signal to propagate rapidly down the entire length of the axon. This allows for the rapid transmission of electrical signals between neurons or from neurons to muscles, enabling a variety of complex physiological functions such as movement, sensation, and thought.
Overall, voltage-gated sodium channels play a critical role in the functioning of the nervous and muscular systems, allowing for the rapid transmission of electrical signals over long distances and enabling the complex behaviors and functions that characterize these systems.
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What information is needed to set up sales tax in QuickBooks Online for a client who only does business in their home state?
Answer:
Their company address
When their last tax period started
How often they have to file a tax return
When they started collecting sales tax for the agency
Explanation:
For setup the sales tax information in Quickbooks online for a client who only does business in their home state, we need these information which are given below:
1. Their company addresses
2. Last Tax Time period started
3. How frequently they filed the tax return
3. when they begin to received sales tax
Therefore all the other options are not valid. Hence, ignored it
The force that your engine applies to turn your cars wheels
after the hydraulic resistances of all devices in a piping assembly are determined, they can be combined into a(n) resistance similar to how electrical resistances are combined in circuit analysis.
Yes, hydraulic resistances of devices in a piping assembly can be combined into a resistance similar to how electrical resistances are combined in circuit analysis.
How are hydraulic resistances combined in a piping assembly?In a piping assembly, each device (such as valves, fittings, or pipes) contributes to the overall hydraulic resistance. These resistances can be combined using methods analogous to electrical circuit analysis. The combined resistance is determined based on the specific arrangement of the devices.
When devices are connected in series, their resistances add up. Mathematically, the total resistance (R_total) in a series arrangement is the sum of the individual resistances (R_1, R_2, R_3, ...):
\[ R_{\text{total}} = R_1 + R_2 + R_3 + \ldots \]
When devices are connected in parallel, the inverse of their resistances add up. Mathematically, the total resistance (R_total) in a parallel arrangement is the reciprocal of the sum of the reciprocals of individual resistances (R_1, R_2, R_3, ...):
\[ \frac{1}{R_{\text{total}}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} + \ldots \]
By applying these principles, the hydraulic resistances of various devices in a piping assembly can be combined to calculate the overall resistance.
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you can get a little better traction on wet roads by driving
a. at or near the posted speed limit. b. in the tire tracks of the vehicle ahead. c. toward the right edge of the roadway. d. with reduced tire air pressure.
The correct answer is B. In wet conditions, the tire tracks of the vehicle ahead can provide better traction because they have already displaced the water on the road surface, allowing the tires to make better contact with the road.
When driving on wet roads, the water on the surface creates a layer between the tires and the road, reducing the friction and making it harder for the tires to grip the road. This can cause the vehicle to skid or slide, leading to loss of control. To improve traction, it is important to slow down and avoid sudden movements, such as hard braking or accelerating.
Driving in the tire tracks of the vehicle ahead can help improve traction because the tires of the vehicle ahead have already pushed some of the water off the road surface. This can help the tires of the following vehicle to make better contact with the road, improving traction and reducing the risk of skidding or sliding.
Driving at or near the posted speed limit may not be safe on wet roads as it can increase the risk of hydroplaning or losing control. Driving toward the right edge of the roadway can be dangerous as it may cause the vehicle to drift off the road or collide with other objects. Reduced tire air pressure can also be dangerous as it can cause the tires to wear out faster and increase the risk of blowouts.
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Why does the ceramic made from Thorium and Oxygen have the chemical ratio of 2 oxygen atoms to every thorium atom (ThO2)
Tests by the byron jackson co. Of a 14. 62-in-diameter centrifugal water pump at 2134 r/min yield the following data: q, ft3/s 0 2 4 6 8 10 h, ft 340 340 340 330 300 220 bhp 135 160 205 255 330 330 what is the bep? what is the specific speed? estimate the maximum discharge possible
Z≤ -4.852 ft, Maximum efficiency is η≅ 0.88 ≅ 88% is the maximum discharge possible
Solution
Given Data:-
D = 14.62in, N = 2134 rc/min, T=20°C. At T= 20°C ɣ=ρg= 62.35 lb/ft³, vapor pressure. Pv = 49.2 lb/ft².
The efficienies at each flow rate is computal by using formula
η = ρgθH / (550) (bhp)
→ As we can See the maximum efficiency point is at θ = 6ft³/s (close to 6ft³/s)
Maximum efficiency is η≅ 0.88 ≅ 88%
b) Given NPSHR = 16 ft,hg=22ft. Zactual. = 9ft (below the sea surface)
To avoid cavitation NPSH < Pa - Pv/ρg - Z - hf
Z < Pa - Pv/ρg - hf
Z < 2116 - 49.2/62.35 - 16 - 22 [1 atm = 2116 lb/ft2]
Z≤ -4.852 ft
-> Keeping the pump 9 ft below the surface gives 4.148 ft of marign against cavitation.
Hence it is Sufficient to avoid cavitation.
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explain the working principles of a rotary engine
Answer:
The rotary engine works on the same basic principle as the piston engine: combustion in the power plant releases energy to power the vehicle. However, the delivery system in the rotary engine is wholly unique. The piston engine performs four key operations: intake, compression, combustion, and exhaust.
Explanation: