[7.36 AM, 4/6/2023] Mas Fakkal: 2.5. Arcade (25%)
You will also need to create a class to model an Arcade. This class should have fields for the arcade's name, a field for the revenue of the arcade, a collection of the arcade games that it of- fers, and and a collection of the customers that are registered with the arcade. The class should have a single constructor that takes a single argument for the arcade's name, and there should be methods to add individual customers and arcade games (e.g. addCustomer (Customer c)). Further, it should have accessor methods for the arcade's name and the revenue of the arcade, in addition to a suitable toString and evidence of testing.
You should also provide methods for:
getCustomer (String customerID) throws InvalidCustomerException
getArcadeGame (String gameId) throws InvalidGameIDException
Finally, you should also have processTransaction (String customerID, String gameID, boolean peak) method which will be used to process a transaction when given a customer ID, product ID, and boolean to represent whether the transaction was carried out during peak time. This method should tie together what you have already implemented - it should retrieve the correct game, the correct customer, and then try to reduce that customer's balance by the appropriate amount. If successful, this amount should be added to the arcade's revenue amount and you should return true to indicate that the transaction was a success. Otherwise, the method should throw an appropriate exception for why the transaction not be successfully processed.
[7.37 AM, 4/6/2023] Mas Fakkal: Additionally, Arcade Corp has asked that you provide the following methods:
⚫ findRichestCustomer () which should search the customers that are registered at a specific arcade to return customer with the highest balance;
7
getMedianGamePrice() which will consider the price per game for all arcade games within this arcade and return the median (if there is an even number of games then this method should average the price of the two middle games);
count ArcadeGames () which should return an int[] of size 3, where the first element is the number of cabinet games in this arcade, the second is the number of active games in this arcade (not including virtual reality games), and the third is the number of virtual reality games in this arcade;
printCorporate Jargon () which should be a static method in the Arcade class that prints a message and does not return anything. It should simply print the corporate motto of "GreedyJayInc. and ArcadeCorp do not take responsibility for any accidents or fits of rage that occur on the premises".
It is up to you to decide how you wish to store collections of products and customers. The simplest solution is to use arrays/ArrayList, but you can use any data structure that is im- plemented in Java (such as those that extend the Java Collection class or similar). A small number of additional marks will be awarded for using a more appropriate data structure than array-based collections, but only if the data structure used is indeed more appropriate and the choice of data structure is justified in the code with a short comment (i.e. why exactly is the data structure that you are using a better choice than an array/ArrayList). To be clear though, using an ArrayList or array will still lead to a good mark if implemented correctly.
Answers
The task involves creating a class to model an Arcade. The Arcade class should have fields for the arcade's name, revenue, a collection of arcade games, and a collection of registered customers.
The class should provide methods to add customers and arcade games, as well as accessor methods for the arcade's name and revenue. Additionally, the class should have methods to retrieve a specific customer and game and a method to process transactions. It should also implement methods to find the richest customer, calculate the median game price, count different types of arcade games, and print a corporate jargon message. To implement the Arcade class, you can use appropriate data structures such as ArrayList or HashMap to store the collections of customers and games. These data structures offer flexibility and efficient retrieval. For example, you can use an ArrayList to store customers and easily search for a specific customer using their ID. Similarly, you can use a HashMap with game IDs as keys to store arcade games and retrieve them efficiently. The `processTransaction` method ties together the previous implementations. It takes a customer ID, game ID, and peak time flag as parameters. The method retrieves the correct game and customer, reduces the customer's balance by the appropriate amount, adds the amount to the arcade's revenue, and returns true to indicate a successful transaction.
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Related Questions
Which step in the reverse-engineering process involves the identification of subsystems and their relationship to one another?
Answers
The answer is analyze
4. The resumes of two male applicants for a college teaching position in chemistry are placed in the
same file as the resumes of two female applicants. Two positions become available, and the first, at the
rank of assistant professor, is filled by selecting one of the four applicants at random. The second
position, at the rank of instructor, is then filled by selecting at random one of the remaining three
applicants. Using the notation M₂F₁, for example, to denote the simple event that the first position is
filled by the second male applicant and the second position is then filled by the first female applicant,
(a) list the elements of a sample space S;
(b) list the elements of S corresponding to event A that the position of assistant professor is filled by a
male applicant
(c) list the elements of S corresponding to event B that exactly one of the two positions is filled by a
male applicant;
(d) list the elements of S corresponding to event C that neither position is filled by a male applicant;
(e) list the elements of S corresponding to the event A ∩ B;
(f) list the elements of S corresponding to the event A U C;
(g) Construct a Venn diagram to illustrate the intersections and unions of the events A, B, and C.
Answers
The Venn diagram to illustrate the intersections and unions of the events A, B, and C are (a) S = {M1F1, M1F2, M2F1, M2F2},(b) A = {M1F1, M2F1},(c) B = {M1F1, M2F2, M1F2}.
What is the illustrate ?Illustration is the art of creating visual images to represent a concept, idea, or message. It is often used in books, magazines, advertisements, educational materials, and more to help convey a particular message or thought. Illustrations can be created using a range of mediums, from traditional drawings and paintings to digital media such as photography, vector art, and 3D art. Illustration is an important form of communication because it helps to bring an idea to life in a unique and creative way. It can help to engage readers and viewers and provide a more vivid and memorable experience than words alone.
(d) C = {M2F2, M2F1}
(e) A ∩ B = {M1F1}
(f) A U C = {M1F1, M1F2, M2F1, M2F2}
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What braking system would be the most unsafe for a car going over 200mph?
Answers
Answer:
Deactivated Anti-Lock Braking System
Explanation:
Well this actually depends on the vehicles braking function
I'd say in this case not sure if ABS coz it prevents the vehicle from slipping while braking...
On the otherside ESP is inportant for it stability
What is the step in which you are testing your hypothesis
Answers
Answer:
Step 1: State your null and alternate hypothesis. ...
Step 2: Collect data. ...
Step 3: Perform a statistical test. ...
Step 4: Decide whether the null hypothesis is supported or refuted. ...
Step 5: Present your findings.
If the probability of a bit error is p, what is the probability of a single, double, and triple error in a 10-bit word? Express it in terms of p.
Answers
Answer:
single bit error: 10pdouble bit error: 45p²triple bit error: 120p³Explanation:
The probability of n bits being in error is 10Cn × p^n, where ...
10Cn = 10!/(n!(10-n!))
10C1 = 10
10C2 = 45
10C3 = 120
This is the product of the probability that n bits can be in error and the number of ways that n bits can be chosen from the 10 in the word.
n = 1: 10p
n = 2: 45p²
n = 3: 120p³
Scheduling can best be defined as the process used to determine:
Answers
Answer:
Overall project duration
Explanation:
Scheduling can best be defined as the process used to determine a overall project duration.
When insulation is being installed at an elevated location, one common safety hazard is
Answers
Answer:
A big hazard is falling, whether it be people or equipment. This is why OSHA requires that workers wear hard hats when doing certain jobs.
On which body (other than Earth) is life in our solar system most likely to be found?
A) Mars
B) Venus
C) Europa
D) Scientific evidence suggests that life elsewhere in our solar system is not possible.
Answers
On Europa, life in our solar system most likely to be found. Therefore, the correct option is (C) Europa.
Among the options given, Europa is considered the body in our solar system most likely to harbor life.
Europa is one of Jupiter's moons and is believed to have a subsurface ocean of liquid water beneath its icy crust.
The presence of liquid water, along with the necessary chemical ingredients and potential energy sources, makes Europa a promising candidate for hosting life.
Scientific studies, including observations from the Galileo spacecraft and other missions, have revealed evidence of subsurface oceans and geological activity on Europa, further supporting the possibility of life.
While Mars and Venus have also been subjects of astrobiological interest, Europa stands out as a more favorable candidate due to its subsurface ocean and potential habitable conditions.
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A weld symbol below the reference line signifies a weld on the "ARROW" side of the joint.
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What is the size of the wrapper TKIP places around the WEP encryption with a key that is based on things such as the MAC address of your machine and the serial number of the packet?
A. 128-bit
B. 64-bit
C. 56-bit
D. 12-bit
Answers
The size of the wrapper that TKIP places around the WEP encryption is A. 128-bit.
TKIP (Temporal Key Integrity Protocol) is a security protocol used in wireless networks to enhance the security of the outdated WEP (Wired Equivalent Privacy) encryption. TKIP introduces several improvements, including a larger key size and a more secure key management mechanism.
The size of the wrapper that TKIP places around the WEP encryption is 128-bit. This 128-bit wrapper is known as the TKIP Key Mixing function.
Here is a step-by-step explanation:
Step 1: TKIP uses a 128-bit key derived from a combination of the original WEP key and additional data, such as the MAC address and serial number of the packet.
Step 2: The TKIP Key Mixing function takes this 128-bit key and creates a 128-bit key stream.
Step 3: The key stream is then XORed (exclusive OR operation) with the plaintext data to produce the ciphertext.
Step 4: To enhance security, TKIP uses a different 128-bit key for each packet. This per-packet key is generated by combining the 128-bit key stream with a unique initialization vector (IV) for each packet.
Step 5: The resulting ciphertext, along with the IV, is transmitted over the wireless network.
By using a larger 128-bit key and per-packet keys, TKIP significantly improves the security of WEP by making it more difficult for attackers to crack the encryption. The additional data, such as the MAC address and serial number of the packet, adds uniqueness and randomness to the key generation process, making it harder for attackers to predict or exploit patterns in the encryption.
It's important to note that while TKIP provides better security than WEP, it has been largely superseded by the more robust WPA (Wi-Fi Protected Access) and WPA2 protocols, which use stronger encryption algorithms like AES (Advanced Encryption Standard).
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Q3
a. A binary search tree may be balanced or unbalanced based on the arrangement
of the nodes of the tree. With you knowledge in Binary search tree:
i. Explain the best and worst case scenarios of the time and space complexity of
both type of binary trees above. (AP)15 marks
b. A program accepts natural numbers N and M as inputs into an integer array A[ ]
and B[ ], each consisting of N and M of elements respectively. Sort the arrays A[ ]
and b[ ] in descending order of magnitude. Use the sorted array to generate a merged
array C[ ]. Array C[ ] should be generated in descending order. Assume the input
arrays comprise a maximum of 20 elements each, with no duplicates. Common
elements should be included in the merged array only once.
Using C++ implement the program above to achieve its stated requirements
above
Answers
The best case scenarios of the time and space complexity of binary search is simply the time complexity of the binary search algorithm which is O(log n).
However, this balanced scenarios complexity would be O(1) when the central index would directly match the desired value.
On the other end, for an unbalanced scenarios of binary search tree, the running time of a binary search would be O(n). which will represent a linked list
What is binary search tree?The binary search tree simply refers to an advanced algorithm used for analyzing the node, its left and right branches, which are eventually modeled in a tree structure and returning the value.
So therefore, the best case scenarios of the time and space complexity of binary search is simply the time complexity of the binary search algorithm which is O(log n).
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How is the law of conservation of matter best represented in a chemical reaction
Answers
Answer:
Umm.... because the spit that comes up of your mouth when you talk mixes with the air
Explanation:
when flow is fully-develped, the pressure gradient in the axial direction along the center of the pipe is
Answers
Answer:
Zero
Explanation:
For this, it is necessary to use the the Hagen-Poiseuille equation, which is a law of physics that describes an incompressible fluid of low viscosity through a tube of constant circular cross-section.
By derivating the Pressure over x it becomes zero
\(\frac{dP}{dx} = 0\)
an operator works on a sheet metal cutting station where he operates plasma cutter. with almost every part that comes out of the plasma cutter,, the operator has to grind it before he gives it to the next operation in line, say, welding station 1, the grinding of the part is
Answers
The operator at the sheet metal cutting station uses a plasma cutter to cut parts. After the cutting process, the operator grinds each part before sending it to the next operation, such as welding station 1.
In the sheet metal cutting process, the plasma cutter uses a high-temperature ionized gas to cut through the metal. While effective, this cutting method often leaves rough edges and burrs on the cut parts. These imperfections can negatively impact the welding process, as they can interfere with the quality and strength of the weld joint.
To ensure a smooth and clean welding operation, the operator takes the time to grind each part after it comes out of the plasma cutter. Grinding involves using an abrasive tool to remove the rough edges, burrs, and any other surface irregularities caused by the cutting process. This step helps to create smooth and uniform surfaces, allowing for better weld penetration and stronger welds.
By grinding the parts before sending them to the next operation, the operator ensures that the subsequent welding process can be carried out efficiently and effectively. This attention to detail and preparation helps to maintain the overall quality and integrity of the final product, ensuring that the welded parts meet the required standards and specifications.
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A circuit has two resistors in parallel, each resistor is 6 ohms. This circuit is connected to a single resistor of 6 ohms, to form a series-parallel circuit. What is the total resistance of the circuit?
Answers
The tatal resistance of the series-parallel circuit with two resistor connected in parallel which combination is connected in series to a single resistor is 9 ohms.
What is a resistance?
This can be defined as the opposition to current flow in a circuit.
To calculate the total resistance, first we need to find the total resistance of the parallel resistor.
For parallel,
R' = (R₁R₂)/(R₁+R₂)............Equation 1Where:
R' = Total resistance of the parallel resistor.
From the question,
Given:
R₁ = 6 ohmsR₂ = 6 ohmsSubstitute these values into equation 1
R' = (6×6)(6+6)R' = 3 ohms.Finally, we combine the effective parallel resistance in series to the single resistance to the the total resistance of the circuit.
Rt = R'+R₃.................. Equation 2Where:
Rt = Total resistance of the circuit.From the question,
R' = 3 ohmsR₃ = 6 ohmsSubstitute these values into equation 2
Rt = 3+6Rt = 9 ohms.Hence, the total resistance of the circuit is 9 ohms.
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use pspice to model the amplifier in part 1. do an ac sweep of the circuit for a frequency range 1 khz-40 khz. show the gain of the circuit over this frequency band. comment on your observation (make sure that you use a small enough input signal that does not result in a nonlinear behavior for the amplifier).
Answers
In modeling the amplifier in part 1 using PSpice and performing an AC sweep of the circuit for a frequency range of 1 kHz, you will notice that the gain remains relatively constant within a certain frequency range and starts to decrease beyond a specific frequency. This indicates the bandwidth of the amplifier and the input signal over the given frequency range.to 40 kHz,
To compute this, follow these steps:
1. Open PSpice and create a new project. Choose an appropriate project name and location.
2. Create a new schematic by clicking File > New > Schematic, and name it accordingly.
3. Add the necessary components to your schematic, such as resistors, capacitors, and the amplifier. You can do this by clicking the "Place Part" icon in the toolbar or pressing the "P" key.
4. Connect the components according to the amplifier circuit diagram given in part 1. Use the "Place Wire" tool (or press "W") to connect the components.
5. Add an AC voltage source as the input signal for your amplifier. Ensure the input signal is small enough to avoid nonlinear behavior in the amplifier. For example, use a 1 mV amplitude input signal.
6. Set up an AC sweep simulation by clicking on the "Analysis" tab in the toolbar and selecting "AC Sweep." In the AC Sweep settings, configure the sweep type as "Decade," the number of points per decade as "10," and set the frequency range from 1 kHz to 40 kHz.
7. Add a voltage probe at the output of the amplifier by clicking on the "Place Voltage/Level Marker" icon in the toolbar or pressing the "M" key. This will measure the gain of the circuit over the specified frequency range.
8. Run the simulation by clicking on the "Run" button in the toolbar or by pressing the "R" key.
9. Once the simulation is complete, the gain of the circuit over the frequency range of 1 kHz to 40 kHz will be displayed in the form of a Bode plot. Observe the plot to analyze the circuit's gain and frequency response.
10. Comment on your observation.
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Question 4 Q.4.1 A properly designed extranet allows companies to reduce internetworking costs and gives participating companies a competitive advantage, which can lead to increased profits. 21, 22, 23 Q.4.3 The Independent Institute of Education (Pty) Ltd 2022 Q.4.4 Q.4.5 Write a brief including the following: Explain how an extranet improves coordination among business partners (3) Identify two companies that are using extranets as an internetworking platform (2) a. b. Q.4.2 In the context of Internet telephony, in addition to cost savings, list three advantages of Voice over Internet Protocol (VoIP). Q.4.6 C. Identify two challenges that must be overcome for designing a successful extranet (2) (Marks: 40) Explain a podcast and how it differs from a regular audio file Discuss social networking by addressing the following: • Briefly explain what social networking is (2 marks) • Provide three examples of social networking sites (3 marks) • For each identified site, explain how it helps a small business (6 marks) in your own words, define the Internet of Everything (loE) then explain how it differs from Internet of Things (IoT). Identify a well-known organisation of your choice then briefly explain two application examples in the organisation for each of the following • Internet Intranet (7) Page 4 of 5 2022 (3) (5) (4) (10)
Answers
To overcome this challenge, companies need to ensure that their systems are compatible with each other.
Extranet is a platform that allows businesses to interact and exchange data with their partners. This allows the sharing of information between the companies and reduces internetworking costs. The extranet helps to increase coordination between business partners in the following ways:Encourages sharing of information: The extranet allows companies to share data with their partners. This allows the partners to stay updated on the latest trends in the market and come up with new business ideas. It also allows companies to improve their supply chain and speed up delivery times. Improves communication: The extranet allows companies to communicate more effectively with their partners. This is done through the use of chat rooms, message boards, and email. This allows partners to exchange ideas and discuss business strategies in real-time.Identify two companies that use extranets as an internetworking platform:Two companies that use extranets as an internetworking platform are:a. Walmart: Walmart uses an extranet to manage its supply chain.
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what are advantages of using sinusoidal Voltages
Answers
Answer:
The advantages of using a pure sine wave for your appliances and machinery are as follows: Reduces electrical noise in your machinery.
translates to no TV lines and no sound system hum.
Cooking in microwaves is quicker.
Explanation:
The smoothest signal is a sine wave, and sine waves are the basis of all functions.
Every other continuous periodic function is a basis function, which means that it can be described in terms of sines and cosines.
For instance, using the Fourier series, I can describe the fundamental Sinusoidal frequency and its multiples in terms of the triangle and square waves.
what determines the kind of fault? question 74 options: direction of stress intensity of stress the presence of water moment magnitude g
Answers
Earth scientists categorize faults based on the dip, or angle of the fault with regard to the surface, and the slide direction. Dip-slip faults, which move in the direction of the dip plane, can either be defined as normal or reverse (thrust), depending on how they move.
What factors affect what kind of fault develops at a plate boundary?The degree of stress affects the kind of fault that develops, and we typically divide it into three categories: compression, tension, and shear.
What categories of errors exist?There are four different types of faulting: oblique, strike-slip, reverse, and normal. A typical fault occurs when the rocks above the fault plane, also known as the hanging wall or footwall, move downward in relation to the rocks below the fault plane, or the footwall.
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of the three types of hazard controls – engineering, administrative, and personal protective equipment (ppe) – ppe is the last line of defense.
Answers
Of the three types of hazard controls – engineering, administrative, and personal protective equipment (PPE) – PPE is the last line of defense: True.
What is OSHA?OSHA is simply an abbreviation for occupational safety and health administration that was created under the Occupational Safety and Health Act, so as to develop work-safety standards for workers and providing precautionary measures against all workplace hazards.
The three types of hazard controls.Generally, there are three types of hazard controls and these include the following:
Engineering Controls. Administrative Controls. Personal Protective Equipment (PPE).What is PPE?PPE is an acronym for personal protective equipment and it can be defined as a terminology that is used to denote any piece of equipment which offer protection to different parts of the body while working in a potentially hazardous environment.
Also, some examples of personal protective equipment (PPE) used to protect the different parts of the body are:
RespiratorsFace maskFace shieldGlovesBootsHelmetAccording to occupational safety and health administration (OSHA), the use of a faulty personal protective equipment (PPE) should be the last line of defense.
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Complete Question:
Of the three types of hazard controls – engineering, administrative, and personal protective equipment (PPE) – PPE is the last line of defense. True or False?
EMISSIONS ASSESSMENT
What is the best recommendation you can make to your
customers to prevent emissions systems failure?
Running only ethanol-free gas in their vehicle
Wait until the gas light comes one before filling the car up
Regular maintenance of the fuel and emissions system
Regularly grease tie rod ends
Select Submit
Answers
Answer:
The best recommendation to prevent emissions systems failure is to regularly maintain the fuel and emissions system.
Explanation:
Please help me i need help on this problem
Answers
The correct answer is I mentioned earlier, the question lacks specific information that is needed to provide a precise answer. The number of millimeters indicated by a Vernier caliper will depend on the position of the sliding scale and the Vernier scale relative to the object being measured.
To use a Vernier caliper, the object being measured is placed between the jaws of the caliper, and the position of the sliding scale is adjusted until it touches the object being measured. The position of the sliding scale is then read off the main scale in millimeters, and the position of the Vernier scale is read off the Vernier scale. The difference between the main scale reading and the Vernier scale reading gives the measurement to the nearest fraction of a millimeter. Therefore, without specific information about the position of the sliding scale and Vernier scale relative to the object being measured, it is impossible to provide a specific answer. If you can provide more information, such as the position of the sliding and Vernier scales, I may be able to give you a more precise answer.
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6. What is the resistance of a curling iron that draws 12 A of current on a 120 V circuit?
Answers
Answer:
10 ohms Ω
Explanation:
V = IR
120 = I(12)
120/12 = 10Ω
Match the example to the model type it represents.
1. The client complains about the way the keyboard feels
1.mock-up
2. The engineering team tests how the tire treads on a new SUV perform on 2.various road conditions
preproduction model
3. The engineering team performs tests on the efficiency of the manufacturing process used for a recumbent bicycle
3.presentation model
Answers
Answer:
represnt
Explanation:
Weight, density, electrical conductivity, and coefficient of thermal expansion are examples of _______ properties.
Answers
Answer:
"Physical" would be the right approach.
Explanation:
Those properties would be that can be established without even any alteration throughout the identification of that same object. Property (whenever color, compressive strength, vapor pressure) of substance which does not require a biochemical alteration including its representation.So the answer here is just the perfect one.
What is land administration and cadastral survey
Answers
Cadastral surveying is the sub-field of cadastre and surveying that specialises in the establishment and re-establishment of real property boundaries. ... A cadastral surveyor must apply both the spatial-measurement principles of general surveying and legal principles such as respect of neighboring titles.
What type of drill bit can produce a blind hole with a flat bottom
Answers
Answer:
end mill 4 flute
Explanation:
you can simply hook it up
in welding connections, the additional metal, sometimes referred to as metal, is deposited from a special electrode, which is part of an electrical circuit that includes the connected part, or metal. group of answer choices a.
Answers
In welding connections, the additional metal often referred to as filler metal, is deposited from a special electrode, which is part of an electrical circuit that has the connected part, or welding rod metal. Thus, D. 'filler; welding rod' is the correct answer.
Filler metal is referred to any material that is used to join two pieces of metal during soldering or welding. As the two items are held together, the filler metal is melted between the two to produce a bridge. After the filler dries, it combines with the items on either side to produce a permanent bond. While welding rods are pieces of metal that are heated to high temperatures and used as a filler to fuse other metals together. Thus, for this question option 'D' holds the correct answer.
"
Complete question:
In welding connections, the additional metal, sometimes referred to as metal, is deposited from a special electrode, which is part of an electrical circuit that includes the connected part, or metal. group of answer choices
A: base; flux
B: flux; shielded
C: base; welding rod
D: filler ; welding rod
"
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If a blender uses 110 volts and 20 amperes how many watts is it using?
Answers
Answer:
2200 watts
Explanation:
# of Watts = Volts × Amps
# of Watts = 110 × 20# of Watts = 2200 wattsHave a lovely rest of your day/night, and good luck with your assignments! ♡
Most methods of transportation rely on some sort of infrastructure to drive, steer, navigate, or direct at some point or another in a journey. Which category of transportation system is least reliant on infrastructure?(1 point)
Answers
Answer:
Most methods of transportation rely on some sort of infrastructure to drive, steer, navigate, or direct at some point or another in a journey. Which category of transportation system is least reliant on infrastructure?(1 point). road
Explanation: