The coin-changing problem is an optimization problem in computer science where the goal is to find the minimum number of coins needed to make a given amount of money. The problem is NP-hard, meaning that there is no known algorithm that can solve it in polynomial time.
What is algorithm?
An algorithm is indeed a finite sequence set exact instructions that is used in computer science and mathematics to solve a class of particular problems or carry out a computation. For performing calculations or processing data, algorithms are employed as specifications. Advanced algorithms can use logical and mathematical tests to guide the code execution through different paths, perform automatic deductions (also known as automated reasoning), and accomplish other tasks. With terminology like "memory," "search," and "stimulus," Alan Turing already used human features to metaphorically describe robots. A heuristic, on the other hand, is a method for addressing problems that may not be fully articulated or may not provide accurate or ideal solutions, particularly in problem domains when there's not a clearly defined proper or ideal conclusion.
To learn more about algorithm
https://brainly.com/question/15217393
#SPJ4
in the main method, ask how many rooms and the wire price per foot. write a loop to call the room estimate method to get info for each room. then call the display results method to print the results.
Answer:
Explanation:
how
bookmark question for later what are the names of manufacturers of heels with a list price of $50 or more? only show manufacturer names.
There are many manufacturers of heels with a list price of $50 or more. Some of these manufacturers include:
-Jimmy Choo
-Prada
-Christian Louboutin
-Gucci
-Valentino.
What is manufacturer?
A manufacturer is a person or business that turns raw materials into finished products using a variety of tools, machinery, and procedures, and then sells those products to consumers, distributors, distributors, retailers, or other manufacturers who can use them to make more complicated products. The economy is said to be significantly influenced by manufacturers. Manufacturing has a long history dating back to antiquity. The usual manufacturer, however, was a single trained artisan with helpers for many centuries. Each craftsperson guarded the methods of production and only taught apprentices. Only manual processes might be used for production.
To learn more about manufacturer
https://brainly.com/question/13440987
#SPJ4
D
Question 7
Commercial photographers attempt to produce images that will blend in and make little impact on
the public.
O True
False
1 pts
A
False. Commercial photographers attempt to produce images that will stand out and make a big impact on the public.
What is photographers?
A photographer often works as a freelancer, getting hired by different customers for specialised tasks. A client who hires a part-time or freelance photographer is expected to adhere to their every demand, as well as to put up a business strategy that makes options and price readily visible and understandable.
Photographers are in charge of the digital and physical development of their photos, as well as any or all editing that may be necessary. Simple cropping, adding/changing colours and shading, modifying sharpness and lighting, or deleting things to tidy up the image are all examples of editing techniques.
To learn more about photographers
https://brainly.com/question/28081565
#SPJ1
QUESTION 3 Explain the earthing systems relevant to SANS 10142-1.
Circuitry known as an earthing system links various electrical circuit components to the ground. It influences how strong and evenly short circuit currents are distributed throughout the system, as well as the consequences they have on the surrounding machinery and people.
What is an electrical circuit?
An electrical circuit is a system that connects electrical components or a model of such a system made out of electrical components. A network of closed loops that provides a path for the current to return is an electrical circuit.
A lamp, an electric motor, a computer, and connecting wires or transmission lines are examples of electrical circuit-using equipment. An electric circuit also contains a device that provides energy to the charged particles that make up the current, such as a battery or a generator.
To learn more about an electrical circuit, use the link given
https://brainly.com/question/2969220
#SPJ9
Three processes share four resource units that can be reserved and released only one at a time. Each process needs a maximum of two units. Show that a deadlock cannot occur.
A deadlock cannot occur because each process only needs a maximum of two resource units, and there are four resource units that can be reserved and released one at a time.
What is deadlock?
Any circumstance in which no member of a group of entities can move forward because each one is waiting for another member, including itself, to act, such as sending a message or, more frequently, releasing a lock, is referred to as a deadlock in concurrent computing. Due to the frequent usage of hardware or software locks in multiprocessing, parallel computing, or distributed systems to manage shared resources to implement process synchronisation, deadlocks are a typical issue in these environments. When a process or thread enters a waiting state due to a system resource being held by some other process that also is waiting for another resource which is being held by some other waiting process, a deadlock occurs in the operating system.
To learn more about deadlock
https://brainly.com/question/15125658
#SPJ4
Mark all the correct operation/s that first, rotate x with p. Then, rotate x with g
p - parent
g - grandparent
x - node
let p and g be respectively the parent and grand parent of x. p is the root. Make x the new root by rotating edge(x,p).The Zig_Zig case p is the left child of g and X is the right child of p,making g the new parent of x rotating edge(x,g).
What exactly is zig-zig rotation?Every node in zig rotation shifts one position to the right of where it currently is. When the item to be searched is either a root node or a left child of a root node, Zig rotation is used.Zig does not allow null or 0 as a value for normal pointers. Where T is the child type, they use the syntax *T. Dereferencing is accomplished using variable, and referencing is accomplished using &variable.A particular kind of binary search tree is the splay tree. The splay tree is not necessarily balanced, unlike other versions like the AVL tree, the red-black tree, or the scapegoat tree.To learn more about zig rotation refer to:
https://brainly.com/question/24522433
#SPJ4
Median Finder: Write a C++ program median.cpp that (a) calls a function fillVector to fill a vector with 100 random Integer values between 1 and 100, (b) calls a function displayVector to print out the vector values in 5 rows of 20 integers in columns that are 4 characters wide, (c) calls a vector-based version of the selection sort, sortVector, and calls displayVector again to show the sorted vector (d) calls a function getMedian that returns the median (the middle value in the sorted vector and (e) displays the median of the vector. FillVector, display Vector, sortVector, and getMedian each receive the vector as the sole parameter. getMedian returns the middle value for odd-sized vectors and returns the average of the two middle values for even-sized veatoes.
A C++ program median.cpp.
#include<bits/stdc++.h>
using namespace std;
// fill vector with random values from 1 to 100
void fill Vector(vector<int> &v){
srand (0);
for(int i = 0; i < 100; i++)
v[i] = rand()%(100) + 1;
}
// display vector
void display Vector(vector<int> &v){
for(int i = 0; i < 5; i++){
for(int j = 0; j < 20; j++) {
cout << v[20*i + j] << "\t";
}
cout << endl;
}
}
// sort vector
void sort Vector(vector<int> &v){
sort (v. begin(), v. end());
cout <<endl << endl;
display Vector(v);
}
// get median of vector
double get Median(vector<int> &v){
int s = v. size();
if(s%2 == 1)
return v[s/2];
return double(v[s/2] + v[s/2 - 1])/2;
}
int main() {
vector<int> v(100);
fill Vector(v);
display Vector(v);
sort Vector(v);
cout << get Median(v) << endl;
}
What is C++?
Bjarne Stroustrup created the overall object-oriented programming (OOP) language known as C++. As it contained all the characteristics of the C language with addition of consumer data types known as "classes," C++ was initially referred to as "C with classes." In 1983, it was renamed C++. Given that it has both high-level and low-level language features, C++ is regarded as an intermediate-level language. Pointers in C++ enable self-memory management, which speeds up a program's execution. The reserved space must later be explicitly released, though.
To learn more about C++
https://brainly.com/question/14426536
#SPJ4
while evaluating a gas valve that failed to open, the technician determined that; the gas valve knob was in the proper position - the thermostat was calling for heat - the valve is an electric ignition type - continuity of the main gas valve coil was good - and proper voltage was present at the main gas valve coil terminal(s). what action should the technician take next?
Replace the gas valve is the step that must be taken by the technician
What are the steps a technician needs to follow while evaluating gas valve?
Always inspect your valve to ensure that no damage occurred during shipping.Clean both the valve and the pipeline.Install the valve in the proper orientation. Many control valves can be installed vertically or horizontally depending on the flow direction.Ensure that the piping is properly supported and aligned with the valve.Allow enough headroom for normal operation and maintenance access to the valve.Changing a valve is usually a simple task. It takes longer as access to the furnace becomes more difficult. Most gas valve replacements take up to an hour. 1 to 2.5 hours | Valve replacements in attics, crawlspaces, and similar areas.
Hence to conclude the above steps must be taken while evaluating a gas valve
To know more on gas valve follow this link:
https://brainly.com/question/28196131
#SPJ4
what methods do you use to diagnose a problem with a copy machine
The methods to use diagnose a problem with a copy machine are :
Check the cartridge or Toner Issues Check for Wrinkled Pages Check for Paper JamsCheck for the copies are Too Light or Too Dark.What is copier maintenance?An agreement for continuing maintenance and repairs is known as a copier maintenance contract, and it is made with a firm like CEI to keep the copier in good working order for your business.The maintenance agreement serves as your copier's health insurance. It includes "check-ups" like toner and maintenance to keep it operating smoothly, as well as diagnostics and repairs in the event that it malfunctions or ceases functioning properly.Clean all of the device's surfaces that a user could touch with isopropyl alcohol (at least 70% concentration).Generally speaking, your printer maintenance kit should be updated every one to two years. The absolute least is once a year or once every other year.Learn more about copier maintenance refer to :
https://brainly.com/question/22547583
#SPJ9
Wherever possible, you should write automated tests. The tests are embedded in a program
that can be run every time a change is made to a system.
Software testing is a step in the software development process. To tell stakeholders about the software's quality, an investigation is conducted against the product.
What happens during the software testing process?Software testing is the procedure used to assess and confirm that a software program or application performs as intended. Bugs can be avoided, development expenses are decreased, and performance is increased.Stakeholders in testing include senior management, program and project managers, Scrum masters, developers, engineers, and architects, as well as specialists in operations, product ownership, and business analysis. Testers, however, should put the consumer first.An expert testing team carries out this kind of testing. The software development life cycle's initial stage, system testing, involves comprehensive testing of the entire application. To ensure that the application satisfies the functional and technological requirements, it is rigorously tested.To learn more about Stakeholders refer to:
https://brainly.com/question/15532995
#SPJ4
Scale of 2:1 if 1cm=5mm
Answer: 2 step by step
Explanation: ;) don't know if this helped or not
From the perspective of the stakeholder matrix, what category of stakeholders could pose a risk or create obstacles for a project?.
Power-Interest Matrix are the stakeholders that could pose a risk or create obstacles for a project.
Power-Interest Matrix:
In a stakeholder analysis, two variables have the greatest impact on the project: power and interest.
Power is the stakeholder's ability to halt or change the project. A government regulatory approval authority, for example, wields enormous power.The size of the overlap between the stakeholder's and the project's goals is defined as interest. A landowner, for example, whose house must be demolished to make way for a project, has a strong interest.What is Stakeholder matrix?
A stakeholder matrix is a visual representation of a stakeholder analysis. Stakeholder mapping, also known as stakeholder matrix creation, entails plotting stakeholders on an X- and Y-axis using two intersecting variables. The grid categorizes each variable as high or low, resulting in four quadrants of categories.
To learn more about Stakeholder, visit: https://brainly.com/question/20929113
#SPJ1
rod abc consist of two cylindrical portions ab and bc; it is made of a mild steel that is assumed to be elastoplastic with e
Two cylindrical parts, AB and BC, make up the rod ABC. It is constructed of mild steel, which is assumed to be elastoplastic with E=200GPa and Y=250 megabytes MPa.
One of the steels has a 25C starting temperature. What the two kids gave us were models of the material's flexibility. We continue to receive 200 GB. The degree of services and linear expansion coefficients are the same for all four.
The boy from extra sigma concurs. 250 megabytes of data were shot out. We must ascertain the level of stress on field road. The street road is visible. All for P. Health minus P. L. is equivalent. We can express this as having all four delta T because both of the responses were acceptable. All four of the sigma are equal to delta T. He consented to us slipping the numbers so we could calculate the temperature rise. is a temporary power of six equal to 250.
To know more about megabytes click here:
https://brainly.com/question/2575232
#SPJ4
although the mechanism of the coupling process is not well understood, it is known that it rate appears to depend on the square of the concentration of the halide. with this in mind, explain the reason for the sequence of addition of the ether solution employed at the beginning of the formation of the grignard reagent in the experimental procedure above.
The sequence of addition of the ether solution is employed to prevent the grignard reagent from decomposing. The mechanism of the coupling process is not well understood, but it is known that the rate of the coupling process appears to depend on the square of the concentration of the halide.
What is employed?
A person who is employed either has a job or is engaged in something. Some individuals think that teenagers with employment are less likely to get into trouble than those without work. You are employed if you are working. The majority of persons who are working hold traditional full-time occupations, however an increasing proportion also work as independent contractors or in part-time jobs. This adverb can also be used to denote "used," as in the sentence "The used tactics for maintaining the classroom's quiet seem a touch extreme to me." The word employ, which means to "use, apply, occupy, or hire," is whence the adjective employed originates.
To learn more about employed
https://brainly.com/question/28016559
#SPJ4
Which additional load balancing method is supported in equal cost multipath (ecmp) load balancing when sd-wan is enabled?.
When SD-WAN is enabled, the volume load balancing approach is provided by equal cost multipath (ECMP) load balancing.
How does load balancing work?Load balancing techniques are thought of as a type of algorithm or approach used to fairly distribute incoming server requests or traffic among servers that are part of the server pool.It should be noted that when SD-WAN is enabled because that is its function, the volume load balancing approach is supported in equal cost multipath (ECMP) load balancing.When SD-WAN is enabled, the equal cost multipath (ECMP) load balancing technique supports the volume load balancing method.By adding entries for several best paths to the switch's forwarding layer and using a load balancing algorithm to recognize flows and distribute them to various paths, ECMP load balancing refers to spreading traffic more equitably.Learn more about equal cost multipath (ECMP) refer to:
https://brainly.com/question/28044760
#SPJ4
when analyzing data sets, such as data for human heights or for human weights, a common step is to adjust the data. this adjustment can be done by normalizing to values between 0 and 1, or throwing away outliers. for this program, adjust the values by dividing all values by the largest value. the input begins with an integer indicating the number of floating-point values that follow. output each floating-point value with two digits after the decimal point, which can be achieved as follows: print(f'{your value:.2f}')
The java program to illustrate the data set will be;
import java.util.Scanner;
public class LabProgram {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int n;
n = scan.nextInt();
while(n<=0){
n = scan.nextInt();
}
float val[] = new float[n];
for(int i = 0;i<val.length;i++){
val[i] = scan.nextFloat();
}
float max = val[0];
for(int i = 1;i<val.length;i++){
if(max < val[i]){
max = val[i];
}
}
for(int i = 0;i<val.length;i++){
val[i] = val[i]/max;
}
for(int i = 0;i<val.length;i++){
System.out.printf("%.2f ",val[i]);
}
System.out.println();
}
}
What is a java program?Java is a high-level, broad, object-oriented, and secure programming language created by Sun Microsystems, Inc.'s James Gosling in 1991.
Java programs are frequently asked about during interviews. These programs can be accessed via control statements, arrays, strings, oops, and so on.
Learn more about java program on:
https://brainly.com/question/26642771
#SPJ1
identify the variables identified by ginnett that are essential to the effective functioning of teams.
Two essential elements of effective teamwork that raise job satisfaction are open communication and mutual support.
What defines effective teamwork?Trust, open communication, and effective leadership are essential for effective teamwork, as well as a focus on shared objectives and shared accountability for success (or failure). But without respect and openness, the team Open communication and mutual support are two crucial components of successful teamwork that increase job happiness. will struggle to do tasks properly. Owning your obligations, maintaining accountability, and following through on your commitments are necessary for effective teamwork. Because team members depend on one another, if one individual falters, the entire project could be derailed. The team's members must have a good working relationship and mutual trust.To learn more about effective teamwork refer to:
https://brainly.com/question/3813692
#SPJ4
You want to make interface fa0/2 a memeber of VLAN2 on a Catalyst 2950XL switch. Which commands must you enter?
The commands you must enter to make fa0/2 a member of VLAN2 on a catalyst 2950XL switch is int fastEthernet 0/2 and switchport access vlan 2
The display port-security connection fastethernet 0/2 command displays a connection in a secure manner, suggesting that it's been disabled due to security controls. In this situation, another device connected to port F0/2 is causing a violation by delivering a frame with such a destination MAC address apart from 0200.1111.1111. Rejoins connection variety design mode, allowing you can configure the very same variables on many channels at the same moment. To convert a port or a group of ports into accessible ports, just use the interface configuration entry VLAN command. A port in accessible mode has only one VLAN defined on the connection, and it is only able to carry traffic for one VLAN. On a Cisco IOS, this interface configuration accessible VLAN function creates a Layer 2 interface.
Learn more about fastethernet 0/2 and switchport access vlan 2 here: https://brainly.com/question/27874920
#SPJ4
the left rear brake drum is scored, but the right rear drum looks as good as new. technician a says the left-side drum should be resurfaced and the right-side drum should be reinstalled without resurfacing. technician b says both sides should be remachined to a similar diameter. who is correct?
Technician b is correct because the left rear brake drum is scored, but the right rear drum looks as good as new then both sides should be remachined to a similar diameter.
A brake drum is a revolving cylinder-shaped component that is friction-activated by a set of shoes or pads pressing outward against it. Drum brakes are brakes where shoes are pressed against the inner surface of the drum. Drum brakes are frequently used at the rear. Compared to disc brakes, these brakes have more parts and are more difficult to maintain, but they cost less to make and are simple to add an emergency braking mechanism. The front and rear brakes are standard equipment on all automobiles. Your car may have a "disc brake" system on all four wheels, a "drum brake" system on all four wheels, or a combination of the two. Typically, the front brakes of your car have a disc system, and the rear brakes have a drum system.
Learn more about brake drum here:
https://brainly.com/question/14937026
#SPJ4
Discuss the implications of security breaches on technology adoption. Are people hesitant to use the Internet or wireless technology for purchases due to security concerns? Are people hesitant to use technology because of privacy concerns? Are these concerns warranted and are they influenced by age, race, or gender?
Security breaches can have a number of implications for technology adoption.
What is Security breach?
Any incident that results in unauthorised access to data, applications, services, networks, and/or devices by circumventing their underlying security mechanisms is considered a security breach. A security breach occurs when an unauthorised individual or application enters a private, confidential, or unauthorised logical IT perimeter. A security violation is another term for a security breach. A security breach is one of the first stages of a malicious intruder's security attack, such as a hacker, cracker, or malicious application. When the security policy, procedures, and/or system are violated, security breaches occur. A security breach can range from low-risk to highly critical, depending on the nature of the incident.
One of the most direct implications is that people may become hesitant to use the Internet or wireless technology for purchases due to security concerns. If people are worried that their personal information may be compromised in a security breach, they may be less likely to use online or mobile platforms for shopping or banking. Additionally, people may be hesitant to use technology because of privacy concerns. If people are worried that their data may be accessed or used without their consent, they may be less likely to use certain technologies. These concerns may be warranted, and they may be influenced by age, race, or gender.
To learn more about Security breach
https://brainly.com/question/23077661
#SPJ4
a data flow diagram (dfd) shows _____.
A data flow diagram (DFD) shows how a system transforms input data into useful information.
What is data?In Computer technology, data simply refers to any representation of factual instructions or information in a formalized and structured manner, especially as a series of binary digits (bits), symbols, characters, quantities, or strings that are used on computer systems in a company.
What is a data flow diagram (DFD)?A data flow diagram (DFD) can be defined as a type of chart that is designed and developed to illustrate how information is moved and transformed in a computer system or process.
This ultimately implies that, a data flow diagram (DFD) can be used to show data inputs, data outputs, storage locations, and all of the routes that are required.
Read more on data here: brainly.com/question/26207955
#SPJ1
Which of the following correctly demonstrates the use of an array initializer list? Choose all that apply. int[] my_array = {1, 2, 3, 4, 5); int[] my_array = [1, 2, 3, 4, 5]; int my_array = (1,2,3,4,5); int my_array = new {1, 2, 3, 4, 5); none of these
int[] my_array = {1, 2, 3, 4, 5}; correctly demonstrates the use of an array initializer list.
What is an array?
An array is a data structure in computer science that consists of a collection of elements, each of which is identified by at least one array index or key. A mathematical method is used to compute the position of each element from its index tuple in an array. An array of ten 32-bit (4-byte) integer variables with indices 0 through 9 may, for example, be stored as ten words at memory addresses 2000, 2004, 2008,..., 2036, with the element with index I having the address 2000 + I 4).
To learn more about array
https://brainly.com/question/28632808
#SPJ4
now let's imagine we need to access just the name of the first student in the list. enter the line of code that would access to just the first student's name:
The line of code that would access to just the first student's name will be students[0].name
What is code?
For the purposes of communication and information processing, a code is a set of principles that transforms information—such as a letter, word, sound, picture, and gesture—into another form, sometimes shorter or secret, for storage on a storage device or for transmission over a communication channel. An early example is the development of language, which allowed people to express verbally what they were thinking, seeing, hearing, or feeling to others. However, speaking restricts the audience to those present at the time the speech is delivered and limits the range of communication to a distance a voice may travel. The ability to communicate across time and space was greatly expanded by the discovery of writing, which transformed spoken words into pictorial symbols. Encoding is the process of transforming data from a source to symbols for transmission or storage.
To learn more about code
https://brainly.com/question/28818771
#SPJ4
stress concentration does have effects on brittle materials on their behavior even under static loads. however, the geometric stress concentration is often ignored for cast-brittle materials, such as cast iron. why? choose the best answer.
Because local yielding or deformation occurs in ductile materials and thus reduces the concentration, stress concentration in ductile materials is not as severe as it is in brittle materials.
In the part design, a stress concentration is a location where the stress is much higher than it is elsewhere. The geometry of the part's sharp corners, holes, notches, or grooves is what most frequently causes stress concentrations. In order to ensure the component functions properly and safely, it is crucial to analyze it for stress concentration. The system's balance may be further hampered and serious repercussions may result if the fabricated or produced component is not entirely functioning under stress. The term "stress concentration" refers to a location that exhibits an abrupt geometric transition or discontinuity and is characterized by high localized stress relative to the body's average stress.
Learn more about concentration here:
https://brainly.com/question/13441104
#SPJ4
in a family of four, what is the probability that no two people have birthdays in the same month? (please assume that all months have equal probability.)
First of all, you should mention that the 4 persons respective dob's are not known to you because if their dob's are known before hand, then there is no probability (because the outcome is known to you).
By assuming that we don't know their dob's, we proceed to the problem.
you are designing a beam with a span of 20 ft. assuming: you are to use a992 steel a wide flange w10x22 was picked the maximum moment of the beam is 52 kip-ft. what is the max allowable unbraced length to prevent lateral-torsional buckling?
The max allowable unbraced length to prevent lateral-torsional bucklingis 575 inc
span =20 ft
useing a992 steel
250*b²/a
250*5.75²/10.17=812.74
so unsupported length to prevent latral torsion is 575 inc
The term "lateral torsional buckling" (LTB) refers to the twisting and lateral displacement caused by applied stresses that are directed away from the longitudinal axis of an unconstrained beam. Unrestrained steel beams are those that have a compression flange that can rotate and move (or displace) freely. Two stiffnesses added to any plate simulate lateral-torsional restraint: In the local coordinate system of the plate, lateral (shear) S [N] was applied in the direction of the y axis. Local plate coordinates with torsional C [Nm/m] applied around the x axis. An uncontrolled beam may experience lateral torsional buckling. When a compression flange on a beam can move laterally and rotate, it is said to be unrestrained.
Learn more about torsional here:
https://brainly.com/question/14893980
#SPJ4
Which of the following Belt Levels usually require a Six Sigma Project be completed before a Six Sigma Certification is awarded?
A . White Belt
B . Yellow Belt
C . Green Belt
D . Black Belt
E . Master Black Belt
F . None of the Above
G . All of the above
It is to be noted that "All of the above" (Option G) Belt Levels must be completed before a Six Sigma Certification is awarded.
What is a Six Sigma Certification?Six Sigma is a certification program that teaches employees how to analyze processes and results in the objective of eliminating waste and faults. There are numerous levels of certification, ranging from main end user to master Six Sigma user.
Six Sigma is a quality control certification that teaches employees how to analyze processes and outcomes in order to eliminate waste and faults. Certification levels range from primary end user to master Six Sigma user who serves as a senior quality control member.
It is to be noted that the ASQ Six Sigma Black Belt exam is a demanding and tough exam. The disciplined study, experience, and a solid preparation and test-taking plan are required. Many students study for months and then fail.
Learn more about Six Sigma:
https://brainly.com/question/16180406
#SPJ1
Solar energy is incident on a black parking lot with an intensity of 1000W∕m2 and 90% of it is absorbed.What is this in Btu/hr per square meter?
The solar energy in Btu/hr per square meter is 3069 Btu/hr per square meter.
How to calculate the value?From the information, the solar energy is incident on a black parking lot with an intensity of 1000W∕m2 and 90% of it is absorbed.
It should be noted that the efficiency is illustrated as:.= Useful energy / Total energy × 100
90% = Useful energy / Total energy × 100
90% = Useful energy / 100 × 100
Useful energy = 900 watts
It should be noted that 1 watt = 3.41 BTU/hr
Therefore, 900 watts will be:
= 900 × 3.41
= 3069 btu/h
Learn more about energy on:
brainly.com/question/13881533
#SPJ1
Suppose that a digitized colour TV picture is to be transmitted from a source that uses a matrix of 800 X 600 picture elements (pixels), where each pixel can take on one of 256 intensity values. Assume that 28 frames are sent per second? Compute the source rate R (bps)? (Hint: Check the basic colour combination in a colour picture)
Answer:
Example problem
Explanation:
(a) The source rate can be calculated as the product of the picture sample size and number of pixel per sample size.
Given:
Picture sample size = 480 * 500. The number of pictures sent per second = 30.
Hence sample size = 480 * 500 * 30 = 7.2e6.
Since each pixel (sample) can take one of 32 values (voltage levels), hence it needs
l
o
g
2
32
=
l
o
g
2
2
5
=
5
∗
l
o
g
2
2
=
5
∗
1
=
5
bits/pixel (bits/sample).
The source rate R is (bps) = 7.26 * 5 = 36e6 bps.
2. (50 points) understanding mips add comments to each line of the following mips code and describe in a sentence or two what it computes. assume that $a0 is used for the input and initially contains n, a positive integer. assume that $v0 is used for returning the output value. begin: addi $t0, $zero, 0 // addi $t1, $zero, 1 // loop: slt $t2, $a0, $t1 // bne $t2, $zero, finish // add $t0, $t0, $t1 // addi $t1, $t1, 2 // j loop // finish: add $v0, $t0, $zero //
Comments are added to each line of the following mips code and describe in a sentence.
#t0=sum=0 commont for first code
#t1=i=1
# (n<i)? or (i>n)?
# exit loop if (i>n)
# sum = sum + 1
# i = i + 2
# repeat loop
# result = sum
Result $v0 is the sum of the odd positive integers 1 + 3 + 5 + … which are less than or equal to n.
A comment in computer program is an explanation or annotation that can be read by programmers and is included in the source code of a computer program. They are added to the source code to make it simpler for humans to understand it, and compilers and interpreters typically ignore them.
Learn more about code here:
https://brainly.com/question/14461424
#SPJ4