The eccentricity "e" of a prestressed member refers to the distance between the centroid (geometric center) of the member and the line of action of the prestressing force. In other words, it is the measure of how off-center the force is applied to the member.
The eccentricity can have a significant effect on the behavior and strength of the member. For example, if the eccentricity is too large, it can cause bending and shear forces that may exceed the design capacity of the member. Additionally, the amount of prestress force that can be applied may be limited by the eccentricity. Therefore, in the design of prestressed members, the eccentricity must be carefully considered and controlled. Engineers must ensure that the eccentricity is within the acceptable range and that the member can withstand the expected loads and stresses. This may involve using different types of prestressing systems, adjusting the geometry of the member, or incorporating additional reinforcement. In summary, the eccentricity of a prestressed member is a critical factor in its design and behavior. It refers to the distance between the centroid and the line of action of the prestressing force and must be carefully controlled to ensure the safety and performance of the structure.
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Using stored liquidity to offset a deposit drain will reduce the size of the bank but using purchased liquidity to offset the drain will not. Group startsTrue or False
The given statement, "Using stored liquidity to offset a deposit drain will reduce the size of the bank but using purchased liquidity to offset the drain will not" is False.
What is liquidity?Liquidity is defined as the capacity of a company or organization to fulfill its obligations as they become due. In finance, liquidity alludes to the degree to which an asset or security can be converted to cash without affecting its market price.
For banks, it refers to their ability to meet their depositors' demand for cash without going bankrupt.What is stored liquidity?The liquidity that a bank has on hand in the form of cash and other assets is referred to as stored liquidity. It is included in the bank's balance sheet.
What is purchased liquidity?Purchased liquidity is a source of funds that a bank acquires from other sources such as the central bank, other banks, or the financial market.In this regard, both purchased and stored liquidity are means of offsetting deposit drains.
In the case of purchased liquidity, banks may acquire liquidity by borrowing from the central bank, other banks, or the financial market when the demand for cash exceeds the available stored liquidity.On the other hand, stored liquidity is already available to the bank and does not need to be borrowed.
In reality, the usage of purchased liquidity, rather than stored liquidity, may increase the size of the bank to account for the increased amount of liquidity, especially if they need to borrow more than their stored liquidity can offer.
In conclusion, the statement that "Using stored liquidity to offset a deposit drain will reduce the size of the bank but using purchased liquidity to offset the drain will not" is false because the usage of purchased liquidity, rather than stored liquidity, may increase the size of the bank to account for the increased amount of liquidity.
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what process variable is affected when the cooling tower performance has an increase in ambient temperature that causes and increase in cooling tower demands
The process variable that is affected when the cooling tower performance has an increase in ambient temperature is lowering the efficiency of the condenser and reducing the cooling power.
The factors that is influenced performance of cooling tower are:
RangeHeat loadAmbient wet-bulb temperature or relative humidity.Approach.The temperature difference between the hot water inlet and cold water outlet at the tower is called a range. The temperature of tower's ambient is generally 4 ° C to 6 ° C (or even higher) less than the ambient temperature. Because of the temperature is cool, the cooling tower ready to cool the water at a temperature below ambient temperature. The impact of ambient temperature makes energy consumption increase.
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motors are induction motors used in applications that operate in the fractional horsepower range, such as fans and compressors in capillary tube systems.
Split-phase motors are induction motors used in applications that operate in the fractional horsepower range, such as fans and compressors in capillary tube systems.
Another name for the split phase motor is the resistance start motor. It contains a single cage rotor and two windings in its stator, referred to as the main winding and starting winding. The positions of both windings differ by 90 degrees. The starting winding has a high inductive reactance and a very low resistance, while the main winding has a high resistance and a low inductive reactance. With the auxiliary winding, a resistor is connected in series. The two windings' respective currents are not equal, and as a result, the rotating field is not even. As a result, the beginning torque is low, typically 1.5 to 2 times the reported running torque. Both windings are parallel connected when the motor first starts.
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A 75-hp motor that has an efficiency of 91.0% is worn-out and is replaced by a motor that has a high efficiency 75-hp motor that has an efficiency of 95.4%. Determine the reduction in heat gain in the room due to higher efficiency under full-load conditions (load factor
Answer:
the reduction in the heat gain is 2.8358 kW
Given that;
Shaft outpower of a motor = 75 hp = ( 75 × 746 ) = 55950 W
Efficiency of motor = 91.0% = 0.91
High Efficiency of the motor = 95.4% = 0.954
now, we know that, efficiency of motor is defined as; = /
where is the electric input given to the motor
so
= /
we substitute
= 55950 W / 0.91
= 61483.5 W
= 61.4835 kW
now, the electric input given to the motor due to increased efficiency will be;
= /
we substitute
= 55950 W / 0.954
= 58647.79 W
= 58.6477 kW
so the reduction of the heat gain of the room due to higher efficiency will be;
Q = -
we substitute
Q = 61.4835 kW - 58.6477 kW
Q = 2.8358 kW
Therefore, the reduction in the heat gain is 2.8358 kW
Explanation: i hope this answer your question if this is wrong or correct please let me know.also no trying to be rude but can you sent me like a thanks?
Consider 100 kg of steam initially at 20 bar and 240 degrees C as the system. Â Determine the change in exergy, in kJ, for each of the following processes:
(a) The system is heated at constant pressure until its volume doubles.
(b) The system expands isothermally until its volume doubles.
Let Tsubzero = 20 degrees C, Psubzer = 1 bar and ignore the effects of motion and gravity.
The given initial state of steam as the system are: Pressure P1 = 20 bar.
Temperature T1 = 240 °C Mass m = 100 kg. Considering the above conditions, the specific volume (v1) of the steam can be calculated as follows: For steam, specific gas constant, R = 0.4615 kJ/kg-K The molecular weight of steam, M = 18.01528 kg/kgmol. The universal gas constant, Ru = 8.314 kJ/kmol-K Specific volume of steam,v1 = Ru T1 / P1 Mv1 = 8.314 × 240 / 20 × 18.01528v1 = 0.2254 m³/kg. Now let us calculate the initial exergy of the system by using the equation
Exergy = m [u - u(ref)] + (P - P(ref)) v where u is the specific internal energy of the steam and u(ref) is the specific internal energy of the steam at reference temperature and pressure P is the pressure of the steam P(ref) is the reference pressure v is the specific volume of the steam. Exergy of the steam at reference temperature and pressure can be calculated as: u(ref) = h(ref) - Pv (ref)Where, h(ref) = enthalpy of the steam at reference temperature and pressure v(ref) = specific volume of the steam at reference temperature and pressure. From steam table, at P = 1 bar and T = 20°C, h(ref) = 2501.9 kJ/kg and v(ref) = 0.00104 m³/kg
Substituting all the given values in the equation,
Exergy1 = 100 [u1 - u(ref)] + (20 - 1) 0.2254
Exergy1 = 100 [3182.5 - 2501.9 - (20 × 0.00104)]
Exergy1 = 66949 kJ.
The change in exergy for the given processes are given below:
(a) The system is heated at constant pressure until its volume doubles. In this case, the final specific volume is v2 = 2v1 = 0.4508 m³/kg. From steam table at P = 20 bar and v = 0.4508 m³/kg, h2 = 3484.9 kJ/kg and u2 = 3019.2 kJ/kg.Using the above-mentioned equation for the second time for the new state, we haveExergy2 = 100 [u2 - u(ref)] + (20 - 1) 0.4508Exergy2 = 100 [3019.2 - 2501.9 - (20 × 0.00104)] + (20 - 1) 0.4508Exergy2 = 70603 kJThe change in exergy of the system, ΔE = Exergy2 - Exergy1 = 70603 - 66949 = 3654 kJ
(b) The system expands isothermally until its volume doubles. In this case, the pressure and temperature decrease until the final specific volume is v2 = 2v1 = 0.4508 m³/kg. Using steam table for v = 0.4508 m³/kg, T2 = 196.72°C and P2 = 6.18 bar.Now, specific internal energy and enthalpy of the steam can be calculated as:u2 = 2801.7 kJ/kg and h2 = 3208.7 kJ/kg.Exergy2 can be calculated by using the above-mentioned equation for the second time with the new values of u2, h2, v2 and P2.Exergy2 = 100 [u2 - u(ref)] + (6.18 - 1) 0.4508Exergy2 = 100 [2801.7 - 2501.9 - (6.18 × 0.00104)] + (6.18 - 1) 0.4508Exergy2 = 67821 kJ. The change in exergy of the system, ΔE = Exergy2 - Exergy1 = 67821 - 66949 = 872 kJ
Therefore, the change in exergy for the given processes are as follows:
(a) The system is heated at constant pressure until its volume doubles. The change in exergy is 3654 kJ.
(b) The system expands isothermally until its volume doubles. The change in exergy is 872 kJ.
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The I26 profile beam is supported and loaded as in the figure. It is required to calculate the vertical movement of the free end and the rotation of the free end.
Answer:
...
Explanation:
...
A customer has arrived at your shop asking for a rotate and balance. The customer's vehicle is a 2008 Corvette with staggered tires (the rear tires are larger/wider than the front) and directional tires. What should you tell the customer before performing any work on the vehicle? Write your response exactly the way you would say it to your customer.
Before we proceed with the work, I want to inform you about a couple of important details regarding your vehicle's tires.This configuration is designed to enhance the performance and handling of your vehicle.
Firstly, your Corvette has staggered tires, which means that the rear tires are larger and wider than the front tires. This configuration is designed to enhance the performance and handling of your vehicle. It's important to maintain the correct positioning of these tires during the rotate and balance process to ensure optimal performance.Secondly, your Corvette is equipped with directional tires. Directional tires have a specific tread pattern that is designed to rotate in a specific direction for optimal traction and performance. It's crucial that we maintain the proper rotation direction of these tires during the service.Considering these factors, we will ensure that the rear tires remain in their original position on the rear axle and the front tires on the front axle during the rotate and balance process. This will maintain the intended tire size and ensure proper performance and handling.If you have any further questions or concerns, please feel free to let me know. We want to make sure we provide the best service for your Corvette and keep it running smoothly. Thank you for choosing our shop, and we'll take good care of your vehicle."
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There is an AC series circuit that is constructed of a 150.0-ohm resistor along with 300.0 ohm inductive reactance and 200.0 ohm capacitive reactance. What is the difference in phase between the current and resistor voltage of the circuit
Answer:
0°
Explanation:
The resistor voltage has the same phase as the circuit current. There is no phase difference.
Answer:
0° (zero degree)Explanation:
the difference in pjase between the current and resistor voltage of the given 150.0 ohm, 300.0 ohm and 200.0 ohmDetermine the design stress for bolts in a cylinder cover where the load is fluctuating due to gas pressure. The maximum load on the bolt is 50 kN and the minimum is 30 kN. The load is unpredictable and factor of safety is 3. The surface of the bolt is hot rolled and the surface finish factor is 0.9. During a simple tension test and rotating beam test on ductile materials (40 C 8 steel annealed), the following results were obtained : Diameter of specimen = 12.5 mm; Yield strength = 240 MPa; Ultimate strength = 450 MPa; Endurance limit = 180 MPa
Sorry I'm new and need points ty
Multiple poles at the origin. Sketch the asymptotes of the Bode plot magnitude and phase for each of the listed open-loop transfer functions. After completing the hand sketches, verify your result with Matlab. Turn in your hand sketches and the Matlab results on the same scales.
(a) L(s) = 1/s^2(s + 10)
(b) L(s) = 1/s^3(s + 8)
(c) L(s) = 1/s^4 (s + 10)
(d) L(s) = (s + 3)/s^2(s + 10)
(e) L(s) = (s + 3)s^3(s + 5)
(f) L(s) = (s + 1)^2/s^3(s + 10)
Answer:
a la 1/s^2(s + 10)
Explanation:
I got it right on math lab
If you are unsure about holding a piece of wood to be drilled, then you should always use a
to secure the place while a.drilling,
B.Clamp
C.farger drill bit
D.Smallor drill bit
E.Awl
During hot work, the fire watch shall do which of the following?
A) All choices are correct
B) Remain on the jobsite for a specified time period before and after hot work
C) Verify proper spark containment
D) Sound the alarm if a fire occurs
2. Who is responsible for the safe operation of the aerial lift and anyone on the platform?
a) The supervisor.
b) The operator.
The owner.
d) The service technician.
Answer:
D. the service technician
Explanation:
hope it's help
Answer:
c) the owner
Explanation:
this is because when there is no owner there is no manager
Consider a 1.5-m-high and 2.4-m-wide double-pane window consisting of two 3-mm-thick layers of glass (k = 0.78 W/m⋅K) separated by a 12-mm-wide stagnant airspace (k = 0.026 W/m⋅K). Determine the steady rate of heat transfer through this double-pane window and the temperature of its inner surface for a day during which the room is maintained at 20°C while the temperature of the outdoors is −5°C. Take the convection heat transfer coefficients on the inner and outer surfaces of the window to be h1 = 10 W/m2⋅K and h2 = 25 W/m2⋅K, respectively, and disregard any heat transfer by radiation.
Answer:
The answer is below
Explanation:
Given:
kg (glass) = 0.78 W/m⋅K, ka (air) = 0.026 W/m⋅K, h1 = 10 W/m2⋅K, h2 = 25 W/m2⋅K, glass length = Lg = 3 mm = 0.003 m, Lo = 3 mm = 0.003 m, La = 12 mm = 0.012 Height = 1.5 m, width = 2.4 m, room temperature = T = 20°C. Therefore:
Total resistance per unit area is given as:
\(R"=\frac{1}{h_1}+\frac{L_g}{k_g}+\frac{L_a}{k_a} +\frac{L_o}{k_g}+\frac{1}{h_2} \\\\R"=\frac{1}{10}+\frac{0.003}{0.78}+\frac{0.012}{0.026} +\frac{0.003}{0.78}+\frac{1}{25} \\\\R"=0.1+0.00385+0.46154+0.00385+0.04\\\\R"=0.60924\ K.m^2/W\)
Area = A = height * width = 1.5 m × 2.4 m = 3.6 m²
The change in temperature = ΔT = 20 °C - (-5 °C) = 25 °C
The rate of heat loss is given as:
\(\dot {Q}=A*\frac{\Delta T}{R"}= 3.6*\frac{25}{0.60924}\\ \\\dot {Q}=147.73\ W\)
The inner surface temperature (Ti) is given as:
\(T_i=T-\frac{\dot {Q}}{A} *\frac{1}{h_1}\\ \\T_i=20-\frac{147.73}{3.6}*\frac{1}{10}=15.9\ ^oC\)
The rafter is fastened to the outside wall so that the plumb cut in the birdsmouth is tight to the exterior wall sheathing
Select one:
O True
O False
In a certain company the cost of software depends on the license type which could be Individual or Enterprise. Write a program that reads License Type wanted (just the first character of each type: I, i, E, e). Number of Users to use the software. Type Price/User Minimum number of users Individual 500$ 1 Enterprise 300$ 5 Your program should: Check if the number of users is greater than or equal than Minimum Number of Users allowed Compute the cost: (for example cost = Cost per user x Number of Users)
Solution :
import \($\text{java}.$\)util.*;
public \($class$\) currency{
public static \($\text{void}$\) main(String\($[]$\) args) {
Scanner input \($=$\) new Scanner(System\($\text{.in}$\));
System\($\text{.out.}$\)print("Enter \($\text{number of}$\) quarters:");
int quarters = input.nextInt();
System.out.print("Enter number of dimes:");
int \($\text{dimes =}$\) input.nextInt();
System\($\text{.out.}$\)print("Enter number of nickels:");
int nickels = input.nextInt();
System\($\text{.out.}$\)print("Enter number of pennies:");
int \($\text{pennies = }$\) input.nextInt();
// computing dollors
double dollars = (double) ((quarters*0.25)+(dimes*0.10)+(nickels*0.05)+(pennies*0.01));
System\($\text{.out.}$\)format("You have : $%.2f",dollars);
}
}
Sadie is the props manager for a small community theater. Because she does not have a part onstage, Sadie is not part of the Performing Arts pathway of the Arts, AV Technology and Communication cluster.
True
False
Answer:
I think it is false!
Explanation:
Answer: I think it's true
Explanation:
Because if you were part of a play, you would have a part but if you work on props, you don't have a part onstage.
Consider a condenser in which steam at a specified temperature is condensed by rejecting heat to the cooling water. If the heat transfer rate in the condenser and the temperature rise of the cooling water is known, explain how the rate of condensation of the steam and the mass flow rate of the cooling water can be determined. Also, explain how the total thermal resistance R of this condenser can be evaluated in this case.
Answer:
Q = [ mCp ( ΔT) ] \(_{cooling water }\)
(ΔT)\(_{cooling water}\) and Q is given
\(m_{cooling water}\) = \(\frac{Q}{Cp[ T_{out} - T_{in} ] }\)
next the rate of condensation of the steam
Q = [ m\(h_{fg}\) ]\(_{steam}\)
\(m_{steam} = \frac{Q}{h_{fg} }\)
Total resistance of the condenser is
R = \(\frac{Q}{change in T_{cooling water } }\)
Explanation:
How will the rate of condensation of the steam and the mass flow rate of the cooling water can be determined
Q = [ mCp ( ΔT) ] \(_{cooling water }\)
(ΔT)\(_{cooling water}\) and Q is given
\(m_{cooling water}\) = \(\frac{Q}{Cp[ T_{out} - T_{in} ] }\)
next the rate of condensation of the steam
Q = [ m\(h_{fg}\) ]\(_{steam}\)
\(m_{steam} = \frac{Q}{h_{fg} }\)
Total resistance of the condenser is
R = \(\frac{Q}{change in T_{cooling water } }\)
Calculate the capacitance-to-neutral in F/m and the admittance-to-neutral in S/km for the three-phase line in Problem 4.18. Also calculate the line-charging current in kA/phase if the line is 110 km in length and is operated at 230 kV. Neglect the effect of the earth plane.
A 230-kV, 60-Hz, three-phase completely transposed overhead line has one ACSR 954 kcmil conductor per phase and flat horizontal phase spacing, with 7 m between adjacent conductors. Determine the inductance in Him and the inductive reactance in ?/km.
The capacitance-to-neutral in F/m is 8.742 × 10⁻¹² F/m
The admittance-to-neutral in S/km is j3.296 × 10⁻⁶ S/km
The line charging current in kA/phase if the line is 110 km in length and is operated at 230 kV, I\(_{chg}\) = 4.814 × 10⁻¹² kA/ Phase
What is capacitance?A component or circuit's capacitance is its capacity to accumulate and store energy in the form of an electrical charge. The ratio of the electric charge on each conductor to the potential difference, or voltage, between them is used to express capacitance.
Farads (F), which bear the name of English physicist Michael Faraday, are the units used to measure the capacitance value of a capacitor (1791–1867).
A farad is a huge amount of capacitance. Most household electrical appliances contain capacitors that produce only a tiny amount of electricity, often a thousandth of a farad (or microfarad, or F), or as little as a picofarad (a trillionth, pF).
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what is the condition for sampling frequency to reconstruct the information signal ?
A motor hoists a 50-kg crate at constant speed to a height of h=6 m in 3 s. if the indicated power of the motor is 4 kw. Determine the motor's efficiency.
Answer:
24.52% efficiency
Explanation:
Knowns:
Mass = 50 kg
Height = 6 m
Time = 3 s
Indicated Power = 4 kW = 4000 W
Acceleration Due to Gravity = 9.81 m/s^2
Actual Power = Potential Energy / Time = mgh / t
Actual Power = (50 kg * 9.81 m/s^2 * 6 m) / 3 s = 981 W
Motor Efficiency = (Actual Power / Indicated Power) * 100 = (981 W / 4000 W) * 100 = 24.52%
what is the maximum ampacity for a 3 awg thhn copper conductor where the temperature termination on one end is rated 75 degree c and the rating of the temperature termination on the other end is unknown? the ambient temperature will not exceed 30 degrees c and there will be three current-carrying conductors in the raceway. also, this installation will not exceed voltage drop recommendations.
The maximum ampacity for a 3 AWG THHN copper conductor where the temperature termination on one end is rated 75 degree C and the rating of the temperature termination on the other end is unknown is 100 amps.
What is the maximum ampacity for a 3 AWG THHN copper conductor? For a 3 AWG THHN copper conductor, the maximum ampacity is 100 amps. It is important to note that ampacity ratings are the maximum current that a conductor can carry under ideal conditions; a number of factors, such as raceway, ambient temperature, insulation, and temperature ratings, can influence the actual ampacity of a given conductor.
There are three current-carrying conductors in the raceway, and the ambient temperature is not expected to exceed 30 degrees Celsius, according to the given scenario. Voltage drop requirements will not be exceeded, and the temperature rating of the other end of the termination is unknown. As a result, the maximum ampacity for a 3 AWG THHN copper conductor is 100 amps.
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Assume that the voltage applied to a load is V = 208-30° V and the current flowing through the load is I = 515° A. (a) Calculate the complex power S consumed by this load. (b) Is this load inductive or capacitive? (c) Calculate the power factor of this load. (d) Calculate the reactive power consumed or supplied by this load. Does the load consume reactive power from the source or supply it to the source
If you took CS1 in Python, you likely used negative index numbers to access list elements or sting characters from the back of the sequence. This feature is not built into Java, but you can write code to simulate it. In case you did not take CS1 in Python, here is an example of negative indexing:
list: [university, college, school, department, program]
positive indexes: 0 1 2 3 4
negative indexes: -5 -4 -3 -2 -1
-1 is the last element, -2 is the second-to-last element, -3 is the third-to-last element, and so on.
Implement the pyGet method to get an element from the input list using a positive or a negative index. Apply the following rules:
if index is a valid positive index, return the list item at that index
if index is a valid negative index, convert to the corresponding non-negative index and then return the list item at that non-negative index
if index is too large, create an ArrayIndexOutOfBoundsException with message index X is too large, replacing X with the actual value of index
if index is too small, create an ArrayIndexOutOfBoundsException with message index X is too small, replacing X with the actual value of index
Suppose that the list has 5 items (as shown in the initial example) but the input index is -6. Then the message string should look like this:
index -6 is too small
Make sure to generalize your code to the actual size of the input list.
import java.util.ArrayList;
public class NegativeIndexing {
public static void main(String[] args) {
// https://www.elon.edu/u/new-student-convocation/homepage/alma-mater/
ArrayList words = new ArrayList();
words.add("proud");
words.add("the");
words.add("oak");
words.add("trees");
words.add("on");
words.add("thy");
words.add("hill");
// try a variety of indexes that should work
// you may need to change these if you change the list elements
int[] indexes = {0, 2, 5, -1, -2, -6};
for (int i : indexes) {
System.out.print("Trying index " + i + ": ");
String word = pyGet(words, i);
System.out.println(word);
}
// try an index that does not work ... should crash program
int badIndex = -100;
pyGet(words, badIndex);
System.out.println("\nIf this prints, your code didn't throw an exception.");
}
// this method allows python-style indexing to get a list item
// refer to the lab instructions on how to implement this method
public static String pyGet(ArrayList list, int index) {
return null; // delete this line
}
}
Here's the implementation of the pyGet method that allows Python-style indexing in Java:
import java.util.ArrayList;
public class NegativeIndexing {
public static void main(String[] args) {
// ArrayList initialization
ArrayList<String> words = new ArrayList<>();
words.add("proud");
words.add("the");
words.add("oak");
words.add("trees");
words.add("on");
words.add("thy");
words.add("hill");
// Indexes to test
int[] indexes = {0, 2, 5, -1, -2, -6};
for (int i : indexes) {
System.out.print("Trying index " + i + ": ");
try {
String word = pyGet(words, i);
System.out.println(word);
} catch (ArrayIndexOutOfBoundsException e) {
System.out.println(e.getMessage());
}
}
// Index that does not work
int badIndex = -100;
try {
pyGet(words, badIndex);
System.out.println("If this prints, your code didn't throw an exception.");
} catch (ArrayIndexOutOfBoundsException e) {
System.out.println(e.getMessage());
}
}
public static String pyGet(ArrayList<String> list, int index) {
int size = list.size();
// Handle positive index
if (index >= 0 && index < size) {
return list.get(index);
}
// Handle negative index
if (index < 0 && Math.abs(index) <= size) {
return list.get(size + index);
}
// Index is too large
if (index >= size) {
throw new ArrayIndexOutOfBoundsException("index " + index + " is too large");
}
// Index is too small
if (index < -size) {
throw new ArrayIndexOutOfBoundsException("index " + index + " is too small");
}
// Default return null (should never reach this point)
return null;
}
}
This code defines the pyGet method that takes an ArrayList and an index as parameters. It checks whether the index is within the valid range for positive and negative indexing and retrieves the corresponding element from the list. If the index is out of bounds, it throws an ArrayIndexOutOfBoundsException with the appropriate error message.
The code then demonstrates the usage of pyGet by providing a sample list and testing various indexes, including one that is expected to throw an exception.
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a tensile specimen with a 12mm initial diameter and 50mm gage length reaches maximum load at 90KN and fractures at 70KN
the minimum diameter at fracture is 10mm
determine the engineering stress at maximum load and the true fracture stress.
Answer:
i) 796.18 N/mm^2
ii) 1111.11 N/mm^2
Explanation:
Initial diameter ( D ) = 12 mm
Gage Length = 50 mm
maximum load ( P ) = 90 KN
Fractures at = 70 KN
minimum diameter at fracture = 10mm
Calculate the engineering stress at Maximum load and the True fracture stress
i) Engineering stress at maximum load = P/ A
= P / \(\pi \frac{D^2}{4}\) = 90 * 10^3 / ( 3.14 * 12^2 ) / 4
= 90,000 / 113.04 = 796.18 N/mm^2
ii) True Fracture stress = P/A
= 90 * 10^3 / ( 3.24 * 10^2) / 4
= 90000 / 81 = 1111.11 N/mm^2
using an allowable stress of 155 mpa, determine the largest bending moment m that can be applied to the wide-flange beam shown. neglect the effect of fillets.
Moment of inertia about x-axis:
I₁= 1/12 (200) (12)³ + (200) (12) (104)²
= 25.9872×10⁶ mm⁴
I₂= 1/2 (8) (196)³ = 5.0197×10⁶ mm⁴
I₃= I₁ = 25.9872 × 10⁶mm⁴
I = I₁ + I₂ + I₃
= 56.944×10⁶ mm⁴ = 56.944×10⁻⁶ m⁴
σ = MC/I with C= 1/2(220) = 110mm = 0.110m
M = Iσ /C with σ= 155× 10⁶ Pa
Mₓ = (((56.944×10⁻⁶) ( 155× 10⁶))/ 0.110) = 80.2×10³N.m
Mₓ = 80.2kN.m
What a wide flange beam has a maximum length?Wide flange beams are excellent for uses requiring this added strength, such as structural supports in buildings, bridges, and other structures.
How should a wide flange beam be sized?The letter W, the nominal depth in inches, and the weight in pounds per foot are used to identify wide flange beams.
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A producer is someone who _____________.
A.
Makes a commodity available for sale or exchange
B.
Buys or trades in order to receive a commodity
C.
Is in the market for a commodity
D.
Receives a commodity from a business
Answer: A. Makes a commodity available for sale or exchange
Explanation: hope it helps ^w^
I need help on this ASAP PLZ?
Answer:
Explanation:
7. False
8. True
9. True
10.True
11. True
Signal loss is the reduction of a signal that occurs in a medium as a function of the physical length of the channel. This is known as:_________
a. degradation.
b. attenuation.
c. frequency degradation.
d. amplitude degradation.
Answer:
B) Attenuation
Explanation:
Attenuation can be regarded as the loss of signal strength which could be as a result of both external and internal factors. This loss of signal strength could occur in networking cables as well as other connections. Attenuation is a loss in energy, because as signal travels, its strength decreases as a a result of distance it covers, this loss of energy is due to the signal trying to overcome the resistance at the medium. One of the main the causes of attenuation is When there is Extra noise on available networks, networks such as electrical current as well as radio waves. It should be noted that attenuation is Signal loss which is the reduction of a signal that occurs in a medium as a function of the physical length of the channel.
Singnal attenuation can taken care of by using lower loss materials with high cost, instead of making of PCB routing length reduction. Amplifiers can also be engaged in amplifying attenuated signal to get back the original signal, this will compensate the loss.
Attenuation can be measured in decibels(dB), this gives the measurement of relative strengths of one signal at two different point or measurement of two signals.
How many physically different ways are there to realize V.W.X four 2-input AND gates? Justify your answer.
Answer: 16
Explanation: