In this case, a hydraulic press with two cylinders of various sizes is involved. A force applied to the smaller cylinder will result in pressure being transferred to the bigger cylinder,
which will increase force proportionally. The formula F1/A1 = F2/A2, where F1 and F2 are the input and output force and A1 and A2 are the cross-sectional areas of the cylinders, describes the relationship between the forces and the areas of the cylinders. The smaller cylinder in this instance has a cross-sectional area of r2 = (1)2 = square inches and a diameter of 2 inches. The bigger cylinder has a cross-sectional area of r2 = (5)2 = 25 square inches and a diameter of 10 inches. Inferring from the formula that the result force on the larger cylinder is F2 = (A2/A1)F1 = (25π/π)10 lbs = 250 lbs.
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For RTK to work, what do we need besides two or more receivers collecting data from a sufficient number of satellites simultaneously?
Answer:
phase measurement and the information content
Explanation:
The full form of RTK is Real Time Kinematic. It is used for satellite navigation technique to increase the precision of the position data that is derived from the positioning systems based on satellites like the NavIC, GPS, Galileo, BeiDou and GLONASS. It takes help of the measurements of phase of signal's carrier wave and also the information content of these signals and it also relies on the single interpolated virtual station in order to provide the real time corrections and provide correct and accurate information.
A thresher is run with a V-belt. The 2 pulleys are 3 inches and 4 inches in diameter. The distance between the pulleys is adjustable. What is the minimum distance between the pulley centers to be able to use a replacement V-belt 40 inches long?
Answer:
16.4925 inches
Explanation:
Which reference source may be consulted to answer questions regarding the Professional Engineers Act?
(a) The Business and Professions Code
(b) The California Code of Regulations
(c) The Professional Engineers Act and Board Rules
(d) All of the above
The reference source that can be consulted is C. The Professional Engineers Act and Board Rules
The reference source that may be consulted to answer questions regarding the Professional Engineers Act is the Professional Engineers Act and Board Rules.
The Professional Engineers Act and Board Rules is an Act that was established in order to regulate the qualifications for professional engineers, register them and also make sure that their conducts and behavior are looked into.
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determine the components of each reaction at the ball and socket joint A and the tension in each cable necessary for equilibrium of the rod
The components of the reaction force in a ball and socket joint include the horizontal and vertical reaction forces.
What is a reaction force?A reaction force is an equal but oppositely directed force which forms a pair which the applied or action force.
Tension is a type of force which is present in a string or a rope supporting a body or object.
A ball and socket jont is a type of joint in the body which is able to rotate freely about an axis.
The components of the reaction force in a ball and socket joint include the horizontal and vertical reaction forces.
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The spiral grooves in a drill body are used to do all of the following except?
Explain why the scenario below fails to illustrate an understanding of the importance of metrology. Situation: Natalie is a calibration technician at a food production plant. Natalie: "The oven is just a couple of degrees off. I will just wait a few hours to see if it will level out on its own"
Answer:
Explanation:
The situation being described completely fails in regard to the importance of metrology. This is because the main importance of metrology is making sure that all of the measurements in a process are as accurate as possible. This accuracy allows an entire process to function efficiently and without errors. In a food production plant, each individual department of the plant relies on the previous function to have completed their job with the correct and accurate instructions so that they can fulfill their functions correctly and end up with a perfect product. If the oven (like in this scenario) is a couple of degrees off it can cause the product to come out burned or undercooked, which will then get transferred to the next part of production which will also fail due to the failed input (burned or undercooked product). This will ultimately lead to an unusable product at the end of the process and money wasted. Which in a large production plant means thousands of products in a single batch are thrown away.
In terms of the necessity of metrology, the situation stated absolutely fails. This is because metrology's primary goal is to ensure that all measurements in a process are as precise as feasible. This precision allows a whole process to run smoothly and error-free. If the oven temperature is wrong by a few degrees, the product will come out charred or undercooked, and the product will be sent to the next step of the process, which will also fail owing to the failed input. This will result in a useless product and a waste of money at the end of the procedure. In a big manufacturing facility, this means thousands of goods are discarded in a single batch.
What are the relative amplitudes of the fourth pair of sidebands for an FM signal with a deviation ratio of 8?
The relative amplitude of the fourth pair of sidebands for an FM signal with a deviation ratio of 8 is -0.1.
What is relative amplitude?The above result is obtained by reading the (Look Up Table) LUT Indexing. LUT is an abbreviation for "Look-Up-Table," which is essentially an indexed collection of integers. LUTs are commonly used in Machine Vision to change pixel values in a specified manner.
The relative amplitudes /0 of all resistance peaks are shown as a function of pressure. Amplitude is defined as the half-distance between the envelope of oscillations at the impedance maximum (N) and minimum (N + 1/2).
In physics, the amplitude is the maximum displacement or distance moved by a point of a vibrating body or wave when measured from its steady state. It is half the length of the vibrational path.
LUTs allow you to route image data by transforming input pixel values into a series of output values. Instead of conducting mathematical operations on each pixel in the image, the grey value is mapped in a look-up table in a fraction of the time it would take to analyze each pixel individually.
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how is perpendicular parking similar to making a right turn?
Perpendicular parking is similar to making a right turn in that both involve the process of turning the vehicle 90 degrees to the right.
Perpendicular parking is also referred to as 90-degree parking. To park a vehicle perpendicular, the driver approaches the parking area from the side and then turns the steering wheel to the right until the vehicle is at a 90-degree angle to the road. This method requires the driver to keep a safe distance from other parked vehicles. Like making a right turn, perpendicular parking is a basic driving skill that every driver should learn before taking to the road.
This type of parking is often used in parking garages, mall parking lots, and other parking lots with limited space. As such, mastering the technique of perpendicular parking is essential for any driver who wants to become a competent and safe driver.
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The rectifier is used to
Answer:
A rectifier is an electrical device used to convert alternating current to direct current.
Explanation:
Hope this helps! Shalom
is the term used when a vehicle body is mounted on a rigid frame or chassis.
Select one:
Oa. Frame-to-body
Ob. Body-on-frame
Oc. Body-on-chassis
Od. Frame-to-chassis
Answer:
B. body on frame
Explanation:
A heat engine with a thermal efficiency of 25% is connected to an electric generator with an efficiency of 95%. A liquid fuel providing heat is consumed at 2.29 litres per hour. What is the power output in kW from the generator?
Heat of Combustion: 43.7 MJ/kg
Density of the fuel: 0.749 g/ml
Answer:
4.94 kW
Explanation:
The heat energy produced by the fuel in one hour is ...
(2.29 L/h)(0.749 kg/L)(43.7 MJ/kg) = 74.954677 MJ/h
Then the power output is ...
(74.954677 MJ/h)(1 h)/(3600 s) = 20.8207 kJ/s
Multiplying this heat energy by the efficiencies of the processes involved, the output power is ...
(20.8207 kW)(0.25)(0.95) = 4.94 kW
what is in gorilla glue
Answer:
glue
Explanation:
What makes an electronic instrument a synthesizer?
An electronic instrument is considered a synthesizer if it produces sound by generating or altering waveforms using electronic circuits or digital signal processing.
A synthesizer is an electronic musical instrument that can produce a wide range of sounds by generating and altering waveforms through various techniques. In essence, a synthesizer converts an electrical signal into sound. A synthesizer can produce sounds that mimic traditional acoustic instruments, such as pianos, guitars, and strings, as well as generate entirely new sounds that cannot be produced by traditional instruments.
The following are some of the characteristics that set synthesizers apart from other electronic instruments:
Waveform Generation: Synthesizers can generate a wide range of waveforms, including sine, square, sawtooth, and triangle waves. The type of waveform used determines the nature of the sound produced.Sound Manipulation: Synthesizers can alter the sound in various ways by using filters, envelopes, modulation, and effects.Polyphony: Synthesizers can produce multiple notes or sounds simultaneously.Programmability: Synthesizers can be programmed to store and recall specific sounds or settings. This allows for the creation of complex and unique sounds.Interface: Synthesizers often have a keyboard or other interface that allows for the control of various parameters, such as pitch, volume, and modulation.Learn more about electronic instrument:
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URGENT NEED HELP BY AN HOUR
C++ ONLY
Given a line of text as input: (1) output the number of characters excluding the three characters commonly used for end-of-sentence punctuation( period, exclamation point, and question mark), (2) then output the number of end-of-sentence punctuation characters that were found. You can just do (1) to pass the first few test cases for partial credit, then do (2) for full credit.
Ex: If the input is "Listen, Sam! Calm down. Please.", the output is:
28
3
Ex: If the input is "What time is it? Time to get a watch! O.K., bye now.", the output is:
43
5
Using the knowledge in computational language in python it is possible to write a code that output the number of characters excluding the three characters commonly used for end-of-sentence punctuation.
Writting the code:import re
def check_sentence(text):
result = re.search(r"^[A-Z][A-Za-z\s]*[\.\?!]$", text)
return result != None
print(check_sentence("Is this is a sentence?")) # True
print(check_sentence("is this is a sentence?")) # False
print(check_sentence("Hello")) # False
print(check_sentence("1-2-3-GO!")) # False
print(check_sentence("A star is born.")) # True
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engineering controls can be utilized as one element of hazard control
Engineering controls are an essential element of hazard control in the workplace, providing a means of minimizing or eliminating hazards at their source.
Engineering controls are a type of hazard control that reduces or eliminates the hazard at its source. Engineering controls are used to minimize or eliminate hazards that pose a significant risk of harm or danger to individuals, such as chemical or noise exposure.
These measures are frequently a vital component of an effective occupational health and safety program in the workplace. Examples of engineering controls include the use of ventilation to control fumes, dust, and other airborne hazards, as well as the use of sound barriers to reduce noise levels. In addition, the use of machine guards, interlocks, and other safety devices on equipment and machinery is considered a form of engineering control to safeguard workers from contact with hazardous moving parts.
Other types of engineering controls include changes in the manufacturing process or the substitution of less harmful materials to eliminate the hazard. Engineering controls are an essential element of hazard control in the workplace, providing a means of minimizing or eliminating hazards at their source. These controls, when combined with other forms of hazard control, such as administrative and personal protective equipment, provide a comprehensive approach to worker safety and health.
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definition for corrosion resistance
Answer: down is the def
Explanation:
Corrosion resistance is the ability to prevent environmental deterioration by chemical or electro-chemical reaction. Desirable characteristics of corrosion-resistant alloys, therefore, include high resistance to overall reactions within the specific environment.
A beaker is filled to the 500 ml mark with alcohol. What increase in volume (in ml) the beaker contain when the temperature changes from 5°C to 30°C? (Neglect the expansion of the beaker, evaporation of alcohol and absorption of water vapor by alcohol.) C°, Palcohol = 1.12 x 104/ °C
Answer:
1.4 mL
Explanation:
Given that:
volume of alcohol \(V_0\) = 500
Temperature change ΔT = (30° - 5°)C
=25° C
\(\beta_{ alcohol }= 1.12 \times 10^{-4} / ^0C\)
The increase in volume ΔV = \(\alpha \times V_o \times \Delta T\)
\(= 500 \times 1.12 \times 10^{-4} / ^0 C\times 25^0 C\)
= 1.4 mL
TypeError Traceback (most recent call last) Input In [34], in () ----> 1 statistics([1, 1, 1, 1]) Input In [29], in statistics(x) 22 mean= round(np_list.mean(), 2) if str(type(np_list[0]))=="" else [round(i.mean(), 2) for i in np_list] 23 # find standard deviation ---> 24 std= round(unbias_std(np_list), 2) if str(type(np_list[0]))=="" else [round(unbias_std(i), 2) for i in np_list] 25 # find mininum 26 mini= np_list.min() if str(type(np_list[0]))=="" else [i.min() for i in np_list] Input In [29], in (.0) 22 mean= round(np_list.mean(), 2) if str(type(np_list[0]))=="" else [round(i.mean(), 2) for i in np_list] 23 # find standard deviation ---> 24 std= round(unbias_std(np_list), 2) if str(type(np_list[0]))=="" else [round(unbias_std(i), 2) for i in np_list] 25 # find mininum 26 mini= np_list.min() if str(type(np_list[0]))=="" else [i.min() for i in np_list] Input In [21], in unbias_std(lists) 15 def unbias_std(lists): 16 mean=lists.mean() ---> 17 var = sum(pow(x-mean,2) for x in lists) / (len(lists)-1) 18 std = np.sqrt(var) 19 return std TypeError: 'numpy.int32' object is not iterable
statistics([1, 1, 1, 1]) == {'mean': 1, 'std': 0, 'min': 1, 'median', 1, 'max': 1}
statistics([1, 2, 2, 3, 4]) == {'mean': 2.4, 'std': 1.14, 'min': 1, 'median': 2.0, 'max': 4}
TypeError: 'numpy.int32' object is not iterable
statistics([1, 1, 1, 1]) == {'mean': 1, 'std': 0, 'min': 1, 'median', 1, 'max': 1}
statistics([1, 2, 2, 3, 4]) == {'mean': 2.4, 'std': 1.14, 'min': 1, 'median': 2.0, 'max': 4}
good day
when i run the above i get this error message . TypeError: 'numpy.int32' object is not iterable. i need a code to rectify this error message and run all three
thank you.
this code provided below works for the code below to run.
statistics([[1, 2], [3, 4]]) == { 'mean': [1.5, 3.5], 'std': [0.71, 0.71], 'min': [1, 3], 'median': [1.5, 3.5], 'max': [2, 4] }
def calculate(lst):
import numpy as np
if len(lst) != 9:
return "List must contain nine numbers."
x = np.array(lst).reshape(3, 3)
result = {
k: [func(x, axis=ax).tolist()
for ax in [0, 1, None]]
for (k, func)
in zip(["mean", "variance", "standard deviation"],
[np.mean, np.var, np.std])
}
statistics([[1, 2], [3, 4]]) == { 'mean': [1.5, 3.5], 'std': [0.71, 0.71], 'min': [1, 3], 'median': [1.5, 3.5], 'max': [2, 4] }
It checks the type of the first element in `x` to determine if it's a single list or nested lists, and performs the calculations accordingly. The results are returned in a dictionary format.
"Could you provide a concise code snippet that calculates statistics (mean, standard deviation, minimum, median, and maximum) for a given list or nested lists, handling both cases in a single line?"Here's a version of the code that accomplishes the task in a single line:
import numpy as np
statistics = lambda x: {'mean': round(np.mean(x), 2) if isinstance(x[0], int) else [round(np.mean(i), 2) for i in x],
'std': round(np.std(x), 2) if isinstance(x[0], int) else [round(np.std(i), 2) for i in x],
'min': np.min(x).tolist() if isinstance(x[0], int) else [np.min(i).tolist() for i in x],
'median': round(np.median(x), 2) if isinstance(x[0], int) else [round(np.median(i), 2) for i in x],
'max': np.max(x).tolist() if isinstance(x[0], int) else [np.max(i).tolist() for i in x]}
This lambda function takes a list or nested lists as input (`x`) and calculates the mean, standard deviation, minimum, median, and maximum values.
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Which option identifies the section of the project charter represented in the following scenario?
For the past five years, students at New School have been in desperate need of a playground. The closest playground is a mile away, at Safe
Park. Our project is to design a playground for the students and to find funding in the community to support it.
O executive summary
O constraints
O project objectives
O project development cycle
Answer:
Executive Summary
Explanation:
It is Executive Summary because I used process of elimination. Constraints are set backs. Project objectives are the goals that you want to achieve. Project development cycle are basically the steps that will be used.
Help please!
Find two careers and explain why you would enjoy being in this career field.
Find two careers and explain why you would NOT enjoy being in this career field.
Note: You should have at least TWO paragraphs
Building science is the study of engineering, design, and physics involved in making structures efficient, safe, practical, and comfortable. Which of the following represents a problem that a building scientist would address?
creating a foundation that resists the effects of acidic soil
creating a foundation that resists the effects of acidic soil
revoking improperly administered certificates of occupancy
revoking improperly administered certificates of occupancy
revising outdated land-use planning practices
revising outdated land-use planning practices
combating the effects of suburban sprawl
A building scientist would handle the issue of creating a foundation that is resistant to the impacts of acidic soil. Architecture experts are focused on the security and sustainability of structure, and the base is an important component of the structural stability of a building.
The presence of acidic soil can induce foundation corrosion, resulting in structural deterioration over time. Building scientists would apply their expertise of materials science, engineering, and design to create solutions that can survive the impacts of acidic soil and assure the foundation's lifetime.
Soil is the weaker material layer that covers the majority of the ground. It is made up of inorganic and organic particles. Soil gives structural support to agricultural plants while also serving as a source of water and nutrients.
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© 2022. Grand Canyon University. All Rights Reserved.APA Activity 2: Citing PracticeCreate a reference page by citing the following sources in correct APA format. You may use your text or the GCU Library website to help you, but do not use citation generators.•A textbook: The second edition of Psychology and Your Life by Robert S. Feldman written in 2013. The publishing city is New York, New York published from McGraw Hill Companies.•Snickers commercial https://youtu.be/2rF_FRCd_LA •PBS Frontline special League of Denial •The document found at this address:http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf•The movie Silver Linings Playbook•The episode of Friends titled: The One After Joey and Rachel Kiss•The 7th edition of the APA Manual
Using APA reference style, the references is attached below from Feldman, R. S. (2013) to American Psychology Association (2020)
What is APA Reference StyleAPA reference style is a style of citing sources used by the American Psychological Association. It is primarily used in the social sciences and includes guidelines for citing sources both within the text of a document and in the reference list at the end of the document. The guidelines provide a consistent way of citing sources to make it easier for readers to identify and locate the sources cited in a document.
In the given problem, if we need to write the reference using APA style, it will take this format below
Reference Page:
Feldman, R. S. (2013). Psychology and your life (2nd ed.). New York, NY: McGraw Hill Companies.
Frontline. (n.d.). League of denial. Retrieved from https://www.pbs.org/wgbh/frontline/film/league-of-denial/
Friends. (2004). The one after Joey and Rachel kiss [Television series episode]. In D. Crane, & M. Kauffman (Executive producers), Friends. Burbank, CA: Warner Bros. Television.
Silver Linings Playbook. (2012). [Motion Picture]. United States: The Weinstein Company.
U.S. Energy Information Administration. (2013). Annual energy outlook 2013 with projections to 2040. Retrieved from http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf
Snickers. (2013, April 2). You’re not you when you’re hungry [Video file]. Retrieved from https://youtu.be/2rF_FRCd_LA
American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). doi:10.1037/0000165-000
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A technician has been dispatched to assist a sales person who cannot get his laptop to display through a projector. The technician verified the video is displaying properly on the laptop's built-in screen. Which of the following is the next step the technician should take?
Answer:verify proper cable is hooked between laptop and projector. HDMI ports or 15 pin video output to input.
And laptop is selected to output to respective video output.
Explanation:
5.12 an evaporative cooling tower (see fig. p5.12) is used to cool water from 110 to 80 °f. water enters the tower at a rate of 250,000 lbm/hr. dry air (no water vapor) flows into the tower at a rate of 151,000 lbm/hr. if the rate of wet airflow out of the tower is 156,900 lbm/hr, determine the rate of water evaporation in lbm/hr and the rate of cooled water flow in lbm/hr.
The rate of cooled water flow in lbm/hr is 244100 lbm/hr.
We need to know about the mass rate to solve this problem. The rate of cooled water will be the same as the rate of water enters the tower minus by the wet water releasing to the air.
m' cooled water = m'water - m'released
From the question above, the given parameters are
m' water = 250000 lbm/hr
m'dry air = 151000 lbm/hr
m' wet air = 156900 lbm/hr
Find the rate of water released to the air
m'released = m'wet air - m'dryair
m'released = 156900 - 151000
m' released = 5900 lbm/hr
Calculate the rate of cooled water flow
m' cooled water = m'water - m'released
m' cooled water = 250000 - 5900
m' cooled water = 244100 lbm/hr
Hence, the rate of cooled water flow in lbm/hr is 244100 lbm/hr.
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Which of the following is true about silicosis?
A. The damage it causes can be reversed
B. It is not a serious concern for construction workers
C. It causes only minor damage to the lungs
D. The damage it causes is irreversible
Answer:
D. The damage it causes is irreversible
Explanation:
Silicosis is a long term lung disease caused by crystalline silica dust inhalation. There is no cure, and once the damage is done it cannot be reversed.
------------------
Like stated above, the damage is irreversible. Option A is incorrect.
Construction workers are constantly moving to build whatever they're working on. The disease will make it hard to breathe and will have a heavy effect on their lungs, preventing them from properly doing their jobs. Additionally, it's possible to get the disease from this job since you're constantly inhaling dust particles.
Silicosis does major damage to the lungs. The dust particles are attacked by the immune system which causes inflammation and eventually leads to areas of hardened and scarred lung tissue.
Thus, the best option is D.
hope this helps :)
How many clock cycles are required to completely load data in 4-bit serial in, parallel out shift register?
Data must be loaded into a 4-bit serial in, simultaneous out shift register using four clock pulses.
What is the straightforward meaning of data?It is data that has already been transformed into a format that is useful for transfer or processing in computers. Data is information that has been transformed into pure binary code for use with modern computers and communication mediums.
What makes data definition crucial?The fundamental benefit of employing a knowledge dictionary is its effective method for compiling and maintaining an extensive collection of searchable data. In creating a relational relationship across databases, data redundancy is avoided and reliability is preserved across various databases.
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Realice un analisis tecnologico de un frasco de vidrio.Teniendo en cuenta todos los niveles de analisis: analisis morfologico estructural,analisis de ls funcion y del funcionamiento,analisis tecnologico economico y analisis historico,por favor ayudenmen necesito entregarlo hoy
Answer:
b
Explanation:
6-4 what range of signed decimal values can be represented using 12 bits
The range of signed decimal values in signed magnitude representation is from -2047 to +2047.
12-bit binary representation, the range of signed decimal values that can be represented depends on the chosen representation scheme. There are two commonly used schemes: signed magnitude and two's complement.
Signed Magnitude:
In signed magnitude representation, the most significant bit (MSB) represents the sign of the number (0 for positive, 1 for negative), and the remaining bits represent the magnitude.
For a 12-bit signed magnitude representation, the range of signed decimal values is as follows:
Maximum positive value: 011111111111 (MSB = 0, magnitude = 2047)
Minimum negative value: 111111111111 (MSB = 1, magnitude = 2047)
Therefore, the range of signed decimal values in signed magnitude representation is from -2047 to +2047.
Two's Complement:
In two's complement representation, the most significant bit (MSB) represents the sign of the number (0 for positive, 1 for negative), and the remaining bits represent the magnitude in two's complement form.
For a 12-bit two's complement representation, the range of signed decimal values is as follows:
Maximum positive value: 011111111111 (MSB = 0, magnitude = 2047)
Minimum negative value: 100000000000 (MSB = 1, magnitude = -2048)
Therefore, the range of signed decimal values in two's complement representation is from -2048 to +2047.
It's important to note that the range of signed decimal values may vary depending on the chosen representation scheme and whether the MSB is reserved for the sign or used as an additional data bit. The given ranges above are based on the most common conventions.
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What three types of person, company or country are there in relation to opportunity?what three types of person, company or country are there in relation to opportunity?
In relation to opportunity, there are three types of person, company, or country: seekers, creators, and enablers.
1. Seekers: These individuals, companies, or countries actively search for opportunities to advance their goals, whether it's personal, professional, or economic growth. They are open to new ideas and are always on the lookout for potential opportunities.
2. Creators: These entities generate opportunities by coming up with innovative ideas, products, or services. They are the drivers of change, introducing new concepts that create fresh opportunities for others.
3. Enablers: Enablers are those who facilitate opportunities for others. They might provide resources, support, or connections to help individuals, companies, or countries seize the opportunities that arise. Enablers play a crucial role in creating an environment where opportunities are related to be accessed and realized by others.
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Water flows steadily through the pipe as shown below, such that the pressure at section (1) and at section (2) are 300 kPa and 100 kPa respectively. Determine the diameter of the pipe at section (2), D, if the velocity at section (1) is 20 m/sec and viscous effects are negligible.
Answer:
The velocity at section is approximately 42.2 m/s
Explanation:
For the water flowing through the pipe, we have;
The pressure at section (1), P₁ = 300 kPa
The pressure at section (2), P₂ = 100 kPa
The diameter at section (1), D₁ = 0.1 m
The height of section (1) above section (2), D₂ = 50 m
The velocity at section (1), v₁ = 20 m/s
Let 'v₂' represent the velocity at section (2)
According to Bernoulli's equation, we have;
\(z_1 + \dfrac{P_1}{\rho \cdot g} + \dfrac{v^2_1}{2 \cdot g} = z_2 + \dfrac{P_2}{\rho \cdot g} + \dfrac{v^2_2}{2 \cdot g}\)
Where;
ρ = The density of water = 997 kg/m³
g = The acceleration due to gravity = 9.8 m/s²
z₁ = 50 m
z₂ = The reference = 0 m
By plugging in the values, we have;
\(50 \, m + \dfrac{300 \ kPa}{997 \, kg/m^3 \times 9.8 \, m/s^2} + \dfrac{(20 \, m/s)^2}{2 \times 9.8 \, m/s^2} = \dfrac{100 \ kPa}{997 \, kg/m^3 \times 9.8 \, m/s^2} + \dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)50 m + 30.704358 m + 20.4081633 m = 10.234786 m + \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)
50 m + 30.704358 m + 20.4081633 m - 10.234786 m = \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)
90.8777353 m = \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)
v₂² = 2 × 9.8 m/s² × 90.8777353 m
v₂² = 1,781.20361 m²/s²
v₂ = √(1,781.20361 m²/s²) ≈ 42.204308 m/s
The velocity at section (2), v₂ ≈ 42.2 m/s