) You are tasked with calculating the cost of PCs for a new computer lab. Write a C++ program to: - Request and read in the required number, and net unit cost (OMR), of the PCs. - Calculate the total gross cost of the batch of PCs, after VAT has been applied at 5%. - Display the total gross cost

) You are tasked with calculating the cost of PCs for a new computer lab. Write a C++ program to: - Request and read in the required number, and net unit cost (OMR), of the PCs. - Calculate the total gross cost of the batch of PCs, after VAT has been applied at 5%. - Display the total gross cost

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter3: Assignment, Formatting, And Interactive Input

Section3.3: Using Mathematical Library Functions

Problem 10E

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-Program C 2. Not my Favorites by CodeChum Admin We've already done looping through a series of numbers and printing out its squares, so how about we level it up and go with cubes this time? I have a condition though; I don't want to be associated with numbers that are divisible by 3 or 5 so if an integer is divisible by either of the two, don't make their cube values appear on the screen, please. Care to fulfill my request? Instructions: Print out the cube values of the numbers ranging from 1 to 1000 (inclusive). However, if the number is divisible by either 3 or 5, do not include them in printing and proceed with the next numbers. Tip: When skipping through special values, make use of the keyword continue and put them inside a conditional statement. Output Multiple lines containing an integer. 1 8 64 343 512 . . .
(Electrical eng.) The amplification of electronic circuits is measured in units of decibels, which is calculated as the following: 10LOG(Po/Pi) Po is the power of the output signal, and Pi is the power of the input signal. Using this formula, write, compile, and run a C++ program to calculate and display the decibel amplification, in which the output power is 50 times the input power. Verify your program’s result by doing a hand calculation. After verifying that your program is working correctly, use it to determine the amplification of a circuit, where output power is 4.639 watts and input power is 1 watt.
(General math) The perimeter, approximate surface area, and approximate volume of an in-ground pool are given by the following formulas: perimeter=2( length+width)volume=lengthwidthaveragedepthundergroundsurfacearea=2( length+width)averagedepth+lengthwidth Using these formulas as a basis, write a C++ program that accepts the length, width, and average depth measurements, and then calculates the pool’s perimeter, volume, and underground surface area. In writing your program, make these two calculations immediately after entering the input data:lengthwidthandlength+width. The results of these two calculations should be used as needed in the assignment statements for determining the perimeter, volume, and underground surface area without recalculating them for each equation. Verify your program’s results by doing a hand calculation, using the following test data :length=25feet,width=15feet,andaveragedepth=5.5feet. After verifying that your program is working, use it to complete the following chart:
(Electrical eng.) For the series circuit shown in Figure 3.16, the voltage drop, V2 , across resistor R2 and the power, P2 , delivered to this resistor are given by the formulas V2=IR2andP2=IV2,whereI=E/(R1+R2). Using these formulas, write, compile, and run a C++ program that prompts users for values of E, R1, and R2 ; calculates the voltage drop and power delivered to R2 ; and displays the results. Check your program by using the test data E=10volts,R1=100ohms,andR2=200ohms. After finishing your verification, use your program to complete the following chart:
-Program C 5. Even Out by CodeChum Admin You know, I was lying when I said the last time that numbers associated with 3 are my favorite, because the one I actually like the most in the world are even numbers! But to make things harder for you, you have to pick the even numbers from a range of two given numbers. Ha! Now, let's try this one more time! Instructions: Input two integers in one line, separated by a space. The first integer shall represent the starting point, and the other, the ending point. Print out all even numbers that are within the range of the starting and ending point (inclusive or including the ending point). Input 1. The starting point 2. The ending point Output The first line will contain a message prompt to input the starting point. The second line will contain a message prompt to input the ending point. The last line contains the integers within the range. Enter·the·starting·point:·5 Enter·the·ending·point:·10 6·8·10
(Hydraulics) a. Design, write, compile, and run a C++ program that calculates and displays the velocity of water flowing out of the tube shown in Figure 2.19. The velocity of water flowing into the tube is 1 ft/sec, the input tube radius is 0.75 in, and the output tube radius is 0.5 in. The output velocity is given by this formula: vout=vin( r in r out )2 v outistheoutputvelocity.v inistheinputvelocity.routistheradiusoftheoutputtube.r inistheradiusoftheinputtube. b. Manually check the values computed by your program. After verifying that your program is working correctly, modify it to determine the output velocity for a tube having an input radius of 1 in and an output radius of .75 in, when water is flowing into the tube at a rate of 1.5 ft/sec.
2. State the values of the control variable x that are printed by the following “for” statement. Then change the code to C++ syntax, and write a complete program in C++ syntax using the code block shown below, run the program, then capture the screen and submit it. for (x = 5; x <= 22; x += 7) { printf("%u\n", x); }
QUESTION 2 Construct a C code to compute, to display the sum of five (5) integer numbers and determine the biggest and smallest number. (*apply appropriate library/header.)
(General math) a. A balance has the following weights: 100 lb, 50 lb, 10 lb, 5 lb, and 1 lb. The number of 100 lb and 50 lb weights required to weigh an object weighing WEIGHT pounds can be calculated by using the following C++ statements: //Determinethenumberof100lbweightsw100=int( WEIGHT/100)//Determinethenumberof50lbweightsw50=int( ( WEIGHTw100100 )/50) Using these statements as a starting point, write a C++ program that calculates the number of each type of weight needed to weigh a 789 lb object. b. Without compiling or running your program, manually check the effect of each statement in the program and determine what’s stored in each variable as each statement is encountered. c. After verifying that your algorithm works correctly, compile and run your program. Verify that the results your program produces are correct. After verifying that your program is working correctly, use it to determine the weights required to weigh a 626 lb object.
Problem 1 (#2.1.8). Determine whether these statements are true or false. a) ∅ ∈ {∅} b) ∅ ∈ {∅,{∅}} c) {∅} ∈ {∅} d) {∅} ∈ {{∅}} e) {∅} ⊂ {∅,{∅}} f) {{∅}} ⊂ {∅,{∅}} g) {{∅}} ⊂ {{∅},{∅}}
General math) a. Write a C++ program to calculate and display the midpoint coordinates of the line segment connecting the two endpoints given in Exercise 1a. Use the fact that the coordinates of the midpoint between two points with the coordinates x1,y1)and(x2,y2)are((x1+x2)/2,(y1+y2)/2). Your program should produce the following display (replacing the underscores with values your program calculates): ThexmidpointcoordinateisTheymidpointcoordinateis b. How do you know the midpoint values your program calculates are correct? c. After verifying the output your program produces, modify it to determine the midpoint coordinates of the line connecting the points (2,10) and (12,6). d. If your program doesn’t already do so, change its output to this: The x coordinate of the midpoint is xxx.xx The y coordinate of the midpoint is xxx.xx The xxx.xx denotes placing the calculated value in a field wide enough for three places to the left of the decimal point and two places to the right of it.
(Electrical eng.) a. The voltage gain of an amplifier is given by this formula: voltagegain=[275 23 2 +0.5 f 2 ]n f is the frequency in Hz. n is the number of stages in the amplifier. Using this formula, write, compile, and run a C++ program to determine the value of the voltage gain for a four-stage amplifier operating at a frequency of 120 Hz. Your program should produce the following display: At a frequency of xxxxx hertz, the voltage gain is yyyyy Your program should replace xxxxx with the frequency and yyyyy with the voltage gain. b. Manually check the value your program produces. After verifying that your program is working correctly, modify it to determine the voltage gain of a 12-stage amplifier operating at a frequency of 9500 Hz.