Consider the following scheme function. Is it tail recursive?
(DEFINE (fun1 x y)
(cond
((NULL? x) y)
((ZERO? (car x)) (fun1 (cdr x) (cons (car x) y)))
(ELSE (fun1 (cdr x) y)) )

Problem-solving becomes quicker and more effective thanks to RPN's elimination of the necessity for parenthesis in complicated calculations and keystroke reduction. The lowest two rows of the stack are always collapsed when an operator key (+ - x) is pressed. Thus, option C is correct.

The “infix notation” of conventional arithmetic expressions, in which the operator symbol appears between the operands, is in contrast to reverse Polish notation, also referred to as postfix notation. In real life, a stack structure makes it simple to assess RPN.

In contrast to the format we are accustomed to, infix notation, where the operator is between the numbers, the notation is chosen because the format that the equation is in makes it easier for machines to understand.

Therefore, ABC+-E×F-*+GHK*+/

Learn more about postfix here:

https://brainly.com/question/14294555

#SPJ4

It is to be noted that the statement that is true about the pricing model on AWS is: "Storage is typically charged per gigabyte." (Option B)

One is to note that Amazon Web Services (AWS), Inc. is an Amazon company that offers metered, pay-as-you-go cloud computing platforms and APIs to consumers, businesses, and governments. Clients frequently use this in conjunction with autoscaling.

AWS has a pay-as-you-go pricing model, so you only pay for the resources you utilize. The kind and quantity of resources utilized, the area in which the resources are hosted, and the length of time the resources are used are all factors that might impact the cost of utilizing AWS.

Learn more about AWS:
https://brainly.com/question/28903912
#SPJ1

The Correct option is MN/s.

SI is that it is an acronym for Système International in French. The metric system that is used for all measurements is the International System of Units (SI). In technological and scientific research, SI units play a crucial role. It is composed of seven base units, which define 22 derived units. The SI units can be expressed as fractional quantities or standard multiples.

The various quantities can be expressed in a variety of SI units used in physics. Base units and derived units are the two categories that can be used to classify the quantities.

Given unit kN/ms

where k = kilo = (10)³

N = newton

s = second

m = mili = (10)⁻³

so kN/ms = ((10)³ N)/((10)⁻³ s)

kN/ms = ((10)³ (10)³ N)/s  

base same power add (10)³ (10)³ = (10)⁶

(10)⁶ = mega = M

kN/ms = ((10)⁶N)/s

kN/ms = MN/s

Hence the MN/s is correct SI form.

Learn more about  SI unit;

https://brainly.com/question/12750330

#SPJ4

True, A switch belongs exclusively to its local network, whereas a router belongs to two or more local networks.

This is the main fundamental distinction between a switch and a router.

What is Local Area Network?

A group of different kinds of devices connected to one another in a single physical location/place, such as a building, office, or home, is known as a local area network (LAN). A LAN can be tiny or big, with one user's home network or hundreds of users and devices in an office or school as examples.

The fact that a LAN connects devices that are located in a single, constrained region is its sole distinguishing feature, regardless of size. A wide area network (WAN) or metropolitan area network (MAN), in contrast, spans a wider geographic area. A few WANs and MANs link numerous LANs collectively.

To know more about Network , visit: https://brainly.com/question/29675361

#SPJ4

Answer: border-radius

Explanation:

The force of given members in tension or compression are CD = 11.25 = 11.2 kN (C), CF = 3.21 kN (T), CG = 6.80 kN (C)

Rope bridges can support both themselves and the load they carry because tension forces cause material to be pulled and stretched in opposing directions. The rocks of an arch bridge press against one other to carry the weight because compression forces squeeze and push material inward. The bottom beam fiber tends to stretch when subjected to a normal vertical live load, whereas the top beam fiber tends to compress (tension). Comparatively speaking, the corresponding truss's bottom chord is under tension and its top chord is in compression. When two or more physical objects come into contact, they apply forces to one another. We label these contact forces differently depending on the objects that are in contact.

To learn more about  compression click here

brainly.com/question/30060592

#SPJ4

Utilize a capacitor with a physical area, a, that is half that of the original capacitor. quadruple.

As a substitute energy storage component, a capacitor can be used in place of batteries. In situations where a sudden surge of power is required, capacitors are frequently used as energy storage components.

A capacitor, in contrast to a battery, is a component of a circuit that momentarily stores electrical energy by dispersing charged particles between (often two) plates to produce a potential difference. When a capacitor is charged, it may discharge all of its stored energy far more quickly than a battery.

To know more about capacitor  visit :-

https://brainly.com/question/17176550

#SPJ4

Answer:

CURRENT (AMPERAGE) or Amp or amp or amps

Explanation:

CURRENT is the quantity or flow rate of electrons moving past a point within the circuit in one second. Current flow is also known as amperage, or amps for short. Higher voltage will produce higher current flow, and lower voltage will produce lower current flow.

The unit of electricity that typically expresses the volume of electron movement in a circuit is known as the ampere.

Electrons may be characterized as the types of subatomic particles which are always revolving around the nucleus of an atom. These types of subatomic particles are negatively charged in nature. Electrons were discovered by J.J. Thomson.

According to the context of this question, the measurement of the current is determined by the fact that it describes the quantity or flow rate of electrons moving in a circuit.

Ampere is the international unit that is specifically utilized in order to measure current. The unit of current, amperes expresses the number of electrons that generally flows past a point in a circuit over a given time.

Therefore, the unit of electricity that typically expresses the volume of electron movement in a circuit is known as the ampere.

To learn more about the Current flow, refer to the link:

https://brainly.com/question/29537921

#SPJ2

Your question seems incomplete. The most probable complete question is as follows:

Which unit of electricity expresses the volume of electron movement in a circuit?

A permanent split capacitor (PSC) motor that is running and up to speed will have the start winding: A) energized.

In Electrical engineering, an electric motor can be defined as an electrical machine that is designed and developed to convert electrical energy into kinetic energy, especially through electromagnetic induction.

A permanent split capacitor (PSC) Motor simply refers to a type of single-phase alternating current (AC) motor in which the capacitor is permanently connected, rather than being connected only when it is starting.

This ultimately implies that, the start winding of a permanent split capacitor (PSC) Motor is energized when it is running and up to speed.

Read more on electric motor here: https://brainly.com/question/479333

#SPJ1

Complete Question

A permanent split capacitor (PSC) motor that is running and up to speed will have the start winding ____.

A) energized

B) de-energized

C) in series with the run winding

D) removed from the circuit

Ethernet is not a type of circuit that needs to be considered when planning for technology design capacity.

Ethernet has been used for connecting devices in wired LANs and wide area networks for years (WAN). Through a protocol—a set of guidelines or common network language—it enables devices to communicate with one another.

Ethernet is the term used to describe how network devices format and transmit data so that other devices connected to the same LAN or campus network can recognize, receive, and process the data. The actual, sheathed wiring used for data transmission is called an Ethernet cable.

Ethernet is most likely used by connected devices that connect wirelessly but use cables to access a physically localized network. End users of all types, including businesses and gamers, depend on the reliability and security of Ethernet connectivity.

Learn more about Ethernet

https://brainly.com/question/1637942

#SPJ4

Possible, tensile strength increases with molecular weight. Therefore the linear and isotactic polymer will have the higher tensile strength.

Possible, tensile strength increases with molecular weight. Therefore the linear and isotactic polymer will have the higher tensile strength.

1) Possible, With an increase in molecular weight, tensile strength rises. As a result, polymers that are linear and isotactic will have a greater tensile strength.

2) It seems unlikely that both polymers display the same level of enhanced tensile strength, but we lack sufficient data to determine how much is raised and which polymer exhibits a greater value.

3) Due to a higher number of covalent bonds, network polymers may, in general, have higher tensile strengths than branch structures.

To learn more about isotactic polymer refer to:

https://brainly.com/question/13846558

#SPJ4

On mountain roads, if you have __5__ or more vehicles behind you, you must use turnouts to let them pass.

Before passing a bus or truck, be sure you can see the driver in the side mirror. To safely and quickly pass the truck or bus, signal loudly, then move into the left lane and speed up. Stay out of the blind spot. In order to observe any items through the rear view glass on the right side and rear of the car, you should be backing up with your head pointed toward the right rear of your vehicle. Driving on two-way streets is simpler since you can readily observe the approaching cars. Never cross the centerline when you get close to a hill's top.

To learn more about mountain roads click the link below:

brainly.com/question/21065899

#SPJ4

A binary number is a number that is expressed using the base-2 numeral system or binary numeral system, a way of expressing numbers in mathematics that typically only employs the symbols "0" (zero) and "1." (one).

A numeral system, also known as a system of numeration, is a method of writing numbers; it is a type of mathematical notation used to consistently represent a set of numbers by using digits or other symbols.

In various numeral systems, the same set of symbols can represent various numbers. For instance, the number "11" stands for the numbers eleven in the decimal system, which is used in everyday life, three in the binary system, which is used in computers, and two in the unary system.

                             Binary                       Octal               Hexadecimal

1)       173              = 10101101₂                  = 255₈                = AD₁₆

2)      299.5         = 100101011.1000₂      = 453.4₈              = 12 B.8₁₆

3)      735.75        = 1011011111.1100₂       = 1337.6₈             = 2 DF.C₁₆

Learn more about binary

https://brainly.com/question/16612919

#SPJ4

To alter the program so that a valid password consists of 10 charac- ters, 6 of which must be digits and the other 4 letters.

A password is a group of characters used to verify a user's identity on a computer system. You might, for instance, need to log in to a computer account. You must enter a true username and password in order to access your account. The term "login" is frequently used to describe this combination. Passwords are private to each user, whereas usernames are typically public knowledge.

Most passwords are made up of a number of characters, which can typically include letters, numbers, and the majority of symbols but not spaces. While picking a password that is simple to remember is a good idea, you shouldn't make it so straightforward that anyone can figure it out.

//CODE//

#include <iostream>

#include <cstring>

#include <cctype>

// #include

using namespace std;

// function prototypes

bool testPassWord(char[]);

int countLetters(char *);

int countDigits(char *);

int main() {

char passWord[20];

cout << "Enter a password consisting of exactly 10 characters, 6 digits and the other 4 letters:"

<< endl;

cin.getline(passWord, 20);

if (testPassWord(passWord))

cout << "Please wait - your password is being verified" << endl;

else {

cout << "Please enter a password with exactly 10 letters, 6 digits and 4 other"<< endl;

cout << "For example, my1237Ru99jhsggs is valid" << endl;

}

// Fill in the code that will call countLetters and countDigits and will

// print to the screen both the number of

// letters and digits contained in the password.

cout << "There are " << countLetters(passWord)

<< " letters in the password.\n";

cout << "There are " << countDigits(passWord) << " digits in the password.\n";

if (countLetters(passWord) == 10 && countDigits(passWord) == 6 && strlen(passWord)==20) {

cout << "password: " << passWord << endl;

} else

cout << "So, password: " << passWord << endl;

system("PAUSE"); // Pause the system for a while

return 0;

}

//**************************************************************

// testPassWord

//

// task: determines if the word in the character array passed to it, contains

// //exactly 10 letters,  6 digits and 4 other letters.

// data in: a word contained in a character array

// data returned: true if the word contains 10 letters, 6 digits and 4 other letters

// digits, false otherwise

//

//**************************************************************

bool testPassWord(char custPass[]) {

int numLetters, numDigits, length;

length = strlen(custPass);

numLetters = countLetters(custPass);

numDigits = countDigits(custPass);

// Check valid password consists of 10 characters,6 of which must be digits

// and the other 4 letters

if (numLetters == 10 && numDigits == 6 && length == 20)

return true;

else

return false;

}

//**************************************************************

// countLetters

//

// task: counts the number of letters (both

// capital and lower case)in the string

// data in: a string

// data returned: the number of letters in the string

//

//**************************************************************

int countLetters(char *strPtr) {

int occurs = 0;

while (*strPtr != '\0') {

if (isalpha(*strPtr))

occurs++;

strPtr++;

}

return occurs;

}

//**************************************************************

// countDigits

//

// task: counts the number of digits in the string

// data in: a string

// data returned: the number of digits in the string

//

//**************************************************************

int countDigits(char *strPtr) {

int occurs = 0;

while (*strPtr != '\0') {

if (isdigit(*strPtr)) // isdigit determines if the character is a digit

occurs++;

strPtr++;

}

return occurs;

}

Learn more about passwords

https://brainly.com/question/15016664

#SPJ4

Bolting is used to assemble semi-hermetic compressors rather than welding. The primary distinction between hermetic and semi-hermetic compressors is this.

The crucial components of semi-hermetic compressors are housed in a cast iron housing. Even though they are still housed together, the motor and compressor are still accessible. Instead of the system failing completely, this enables maintenance checks and the repair or replacement of pieces as they deteriorate.

Centrifugal force causes the oil to flow, which lubricates hermetic compressors. While having an oil pump and what is known as forced lubrication, semi-hermetic compressors do not.

Gas pours into the area of low pressure through a suction valve input. The suction valve closes during the piston's upstroke, forcing the exhaust valve to open as a result of mounting pressure. The gas is compelled through the system's discharge, or high pressure, side after being compressed.

Know more about compressors here:

https://brainly.com/question/9131351

#SPJ4

The Python code that can help in the Programming Exercise  is given below:

import math

def sphere_properties(radius):

 diameter = 2 * radius

 circumference = diameter * math.pi

 surface_area = 4 * math.pi * radius * radius

 volume = 4/3 * math.pi * radius * radius * radius

 print("Diameter: ", diameter)

 print("Circumference: ", circumference)

 print("Surface Area: ", surface_area)

 print("Volume: ", volume)

radius = float(input("Enter the radius of the sphere: "))

sphere_properties(radius)

The above code defines a function sphere_properties that takes the radius of the sphere as input and calculates the diameter, circumference, surface area, and volume of the sphere. The value of π is obtained from the math module.

Therefore, the function prints the values of the diameter, circumference, surface area, and volume of the sphere.

Learn more about Programming from

https://brainly.com/question/26497128

#SPJ1

Using the knowledge of computational language in JAVA  it is possible to write a code that method called panemarched to return if the string is a valid password.

import java.util.Scanner;

// main class

public class Main {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

// read string password from user

System.out.print("Please enter the Password: ");

String passwordString = sc.next();

// call function and print the result

System.out.println(passwordCheck(passwordString));

}

// method to check the password

// outputs true if correct and false otherwise

// input argument is a string of password

public static boolean passwordCheck(String password) {

// strings of alphabets and numbers

String alpha = "abcdefghijklmnopqrstuvwxyz";

String numeric = "1234567890";

// if length of password string is less than 8 we return false

if (password.length() < 8) {

return false;

}

// else we check the characters

else {

// loop to check each char in the string

for (int i = 0; i < password.length(); i++) {

String temp = Character.toString(password.charAt(i));

// if character is not an alphabet or a number we return false

if ((alpha.contains(temp) == false) && (numeric.contains(temp) == false)) {

return false;

}

}

// if code reaches here means the password is correct

return true;

}

}

}

See more about JAVA at brainly.com/question/29897053

#SPJ1

A highlight table is used to: A. visualize the relative proportion of values in a table.

In Computer technology, tableau can be defined as an interactive data visualization software application (program) that is designed and developed by an American interactive data visualization software organization, with a primary focus on data visualization and business intelligence.

In Computer technology, a highlight table can b defined as a type of table that is designed and developed to display, show, illustrate, represent, or visualize categorical data in a text table with the aid of a color.

Read more on data here: brainly.com/question/26207955

#SPJ1

A part that stops the blades from feathering is a latch mechanism made of springs and lock pins.

A mechanism in feathering propellers allows the pitch to be adjusted to an angle of around 90 degrees. A propeller is typically feathered when the engine is unable to generate enough power to turn it. The drag on the aircraft is decreased by angling the propeller parallel to the direction of flight.

Feathing is the term used to describe this procedure. On an engine that has failed or has been turned off on purpose, feathering the propeller during flight significantly minimizes the drag that would result from the blade pitch in any other state.

To know more about engine visit:-

https://brainly.com/question/23918367

#SPJ4

Backlogs for products and sprints are essential to agile planning. They list every action that needs to be taken to complete a project in detail.

Every product team is in charge of jotting down fresh suggestions and requests for improvements. These inputs are what fuel innovative business practises and a supportive workplace culture. However, you must do more than serve as a sounding board for various ideas. You require a method for compiling and assessing requests for your current roadmap. Most product teams utilise a backlog of some form to organize ideas and ongoing project.

Agile approaches are the foundation of the backlog idea. Many teams continually prioritize what to build and when using adaptive planning strategies. Even teams that do not strictly adhere to the agile methodology now frequently use backlogs to organize and prioritise work items.

Know more about project here:

https://brainly.com/question/29417593

#SPJ4

Using the knowledge in computational language in JAVA it is possible to write a code that Capture screen and edit video with filters, effects, music. You can draw on screen while recording, easily record phone screen with internal/external voice.

package com.exchange;

class Recv

{

private String lhs;

private String rhs;

private String error;

private String icc;

public Recv(

{

}

public String getLhs()

{

return lhs;

}

public String getRhs()

{

return rhs;

}

}

public class Convert extends HttpServlet {

   protected void processRequest(HttpServletRequest req, HttpServletResponse resp)

           throws ServletException, IOException {

       String query = "";

       String amount = "";

       String curTo = "";

       String curFrom = "";

       String submit = "";

       String res = "";

       HttpSession session;

       resp.setContentType("text/html;charset=UTF-8");

       PrintWriter out = resp.getWriter();

       /*Read request parameters*/

       amount = req.getParameter("amount");

       curTo = req.getParameter("to");

       curFrom = req.getParameter("from");

       try {

           query = "+ amount + curFrom + "=?" + curTo;

           URL url = new URL(query);

           InputStreamReader stream = new InputStreamReader(url.openStream());

           BufferedReader in = new BufferedReader(stream);

           String str = "";

           String temp = "";

           while ((temp = in.readLine()) != null) {

               str = str + temp;

           }

                 Gson gson = new Gson();

           Recv st = gson.fromJson(str, Recv.class);

           String rhs = st.getRhs();

                   StringTokenizer strto = new StringTokenizer(rhs);

           String nextToken;

           out.write(strto.nextToken());

           nextToken = strto.nextToken();

           if( nextToken.equals("million") || nextToken.equals("billion") || nextToken.equals("trillion"))

           {

               out.println(" "+nextToken);

           }

       } catch (NumberFormatException e) {

           out.println("The given amount is not a valid number");

       }

   }

   protected void doGet(HttpServletRequest request, HttpServletResponse response)

           throws ServletException, IOException {

       processRequest(request, response);

   }

   protected void doPost(HttpServletRequest request, HttpServletResponse response)

           throws ServletException, IOException {

       processRequest(request, response);

   }

   public String getServletInfo() {

       return "Short description";

   }// </editor-fold>

}

See more about JAVA at brainly.com/question/29897053

#SPJ1

At high temperatures, there is a large amount of radiative heat transfer via the fibre insulation employed in thermal protection systems (TPS) (1200 C).

At high temperatures, fibre insulation used in thermal protection systems (TPS) radiatively transfers a substantial amount of heat (1200 C). The TPS's ability to insulate can therefore be significantly affected by reducing the radiative heat transfer through the fibre insulation. Directly applying reflective coatings to the individual fibres of a fibrous insulation should reduce radiative heat transfer, resulting in a less effective thermally conductive insulation. Sol-gel processes have been used to create coatings with high infrared reflectivity. By using this method, fibre insulation can receive uniform coatings without noticeably increasing its weight or density. To assess coating performance, ellipsometry, scanning electron microscopy, and Fourier Transform infrared spectroscopy have all been used.

Know more about uniform here:

https://brainly.com/question/14716338

#SPJ4

The best time delay rating for a fuse used in semiconductor circuits is standard.

What is a fuse?

A fuse is an electrical safety device that protects an electrical circuit against overcurrent in electronics and electrical engineering. An integral part of it is a metal wire or strip that melts under excessive current flow, blocking or interrupting the current. The service distribution panel contains fuses as an over-current safety measure.

It basically consists of a metal piece that melts when it gets too hot. In accordance with their use in various applications, fuses can be categorized as "One Time Only Fuse," "Resettable Fuse," "Current Limiting and Non-Current Limiting fuses," and "Current Limiting and Non-Current Limiting."

To learn more about a fuse, use the link given
https://brainly.com/question/29585696
#SPJ4

Answer: modem then router

Explanation: the wireless signal you will get is from the router but to get that signal you need to have the modem working.

Answer:

True

Explanation:

The Currency Exchange Programming for max amount of the target currency to 1 unit of the selected currency can be written using python.

The programming code in python is,

#The given code start

import sys

for line in sys.stdin:

   print(line, end="")

   #The given code end

   break

list_foreign_exchange = line.strip()

selected_currency = ""

target_currency = ""

found = False

max1 = 0

for line in sys.stdin:

   print(line, end="")

   if list_foreign_exchange == "":        

       list_foreign_exchange = line.strip()

   elif selected_currency == "":

       selected_currency = line.strip()

   else:

       target_currency = line.strip()

       break

if selected_currency == target_currency:

   print("0")  

else:

   currency = []

   currency_string = list_foreign_exchange.split(";")

   for cur in currency_string:

       currency.append(cur.split(","))

   for cur in currency:    

       if (selected_currency == cur[0]) and (target_currency == cur[1]):        

           max1 = float(cur[2])

           found = True

           break

   max2 = 1

   tried_index = 0

   ref = selected_currency

   for cur in currency:

       if ref == cur[0]:

           ref = cur[1]        

           max2 *= float(cur[2])

           if cur[1] == target_currency:

               found = True

               break

   if found == True:

       if (max2 > max1):

           print(max2)

       else:

           print(max1)

   else:

       print('-1.0')

In the code above, we use loop statement to iterate each currency and IF-ELSE function to check the each condition, so we can get the result exactly to the goal.

You question is incomplete, but most probably your full question was

(image attached)

Learn more about loop here:

brainly.com/question/26098908

#SPJ4

Once the needs have been defined in the logical network design, the next step is to develop a technology design.

Practical applications are used to illustrate the engineering scope, content, and professional practises in technological design. In order to solve engineering design problems and create innovative designs, students in engineering teams use concepts and abilities from technology, science, and mathematics.

Engineering design criteria like design effectiveness, public safety, human factors, and ethics are researched, developed, tested, and evaluated by students. For students interested in engineering, design, innovation, or technology, this course is a must-take.

Students who take Technological Design are prepared for the capstone Engineering Design course, which serves as a transitional course for post-secondary study.

Learn more about technological design

https://brainly.com/question/20162876

#SPJ4

Regarding GC (Garbage Collection) in Java, the statements that is true is option B:

In regards to array and ArrayList in Java, the  statement that is false is option A: ArrayList is mutable but array is immutable

In Java, the GC (Garbage Collection) process is responsible for automatically deallocating the memory space occupied by objects that are no longer in use. This helps to prevent memory leaks and improve the efficiency of the Java application.

Note that An array is immutable, which means that its size cannot be changed once it is created. In contrast, an ArrayList is a dynamic data structure that can store an expandable list of elements.

Learn more about ArrayList from

https://brainly.com/question/8045197

#SPJ1

An implicit cursor is automatically created in procedural sql when the sql statement returns only one value.

In order to interact with and modify databases, programmers use SQL (Structured Query Language). Many businesses must learn SQL if they want to make the most of the mountains of data they collect. Here is all the information you need to know about accessing and modifying data using SQL.

Users can access specific data they need at any time by using SQL, which helps manage the information stored in databases.

Even though SQL is a straightforward programming language, it is incredibly strong. In actuality, SQL is capable of adding data to database tables, altering data in already-existing database tables, and deleting data from SQL database tables. SQL can also change the database structure by adding, deleting, and altering tables.

Learn more about SQL

https://brainly.com/question/25694408

#SPJ4