Need a help with this programs for each of the following problem statements: - USE C++ to solve this. (Dev C++) - use of comment statements - use of descriptive variable names 1. (gcount) A program that will accept any number of grades for an exam. The grades will be input as 4 for an A, 3 for a B, 2 for a C, 1 for a D, and 0 for an F. After all grades have been entered, allow the user to enter -1 to exit. Output the number of grades in each category. - correct use of array of counters - correct use of loop - correct output

Need a help with this programs for each of the following problem statements: - USE C++ to solve this. (Dev C++) - use of comment statements - use of descriptive variable names 1. (gcount) A program that will accept any number of grades for an exam. The grades will be input as 4 for an A, 3 for a B, 2 for a C, 1 for a D, and 0 for an F. After all grades have been entered, allow the user to enter -1 to exit. Output the number of grades in each category. - correct use of array of counters - correct use of loop - correct output

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter3: Assignment, Formatting, And Interactive Input

Section: Chapter Questions

Problem 12PP: (General math) a. A balance has the following weights: 100 lb, 50 lb, 10 lb, 5 lb, and 1 lb. The...

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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 . . .
State whether each of the following is true or false. If false, explain why h) All arguments following the format control string in a printf function must be preceded by an ampersand (&).
(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.
-Convert SES variable to a factor and assign the value labels “low”, ”middle” and “high” to the 3 levels of thevariable. Then -Define the variables complic, comorb, depressi, diabetes as factors. For all these factors, a zero means “no” and a 1 means “yes”. Assign these value labels through the function factor() and check the change using str()
(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:
(General math) The volume of oil stored in an underground 200-foot deep cylindrical tank is determined by measuring the distance from the top of the tank to the surface of the oil. Knowing this distance and the radius of the tank, the volume of oil in the tank can be determined by using this formula: volume=radius2(200distance) Using this information, write, compile, and run a C++ program that accepts the radius and distance measurements, calculates the volume of oil in the tank, and displays the two input values and the calculated volume. Verify the results of your program by doing a hand calculation using the following test data: radius=10feetanddistance=12feet.
(Physics) a. The weight of an object on Earth is a measurement of the downward force onth e object caused by Earth’s gravity. The formula for this force is determined by using Newton’s Second Law: F=MAeFistheobjectsweight.Mistheobjectsmass.AeistheaccelerationcausedbyEarthsgravity( 32.2ft/se c 2 =9.82m/ s 2 ). Given this information, design, write, compile, and run a C++ program to calculate the weight in lbf of a person having a mass of 4 lbm. Verify the result produced by your program with a hand calculation. b. After verifying that your program is working correctly, use it to determine the weight, on Earth, of a person having a mass of 3.2 lbm.
(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.
C++ program chose the correct result for each of the following programming statements
(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:
Write C++ statements to accomplish each of the following
(General math) a. Write a C++ program to calculate and display the value of the slope of the line connecting two points with the coordinates (3,7) and (8,12). Use the fact that the slope between two points with the coordinates (x1,y1)and(x2,y2)is(y2y1)/(x2x1). b. How do you know the result your program produced is correct? c. After verifying the output your program produces, modify it to determine the slope of the line connecting the points (2,10) and (12,6). d. What do you think will happen if you use the points (2,3) and (2,4), which results in a division by zero? How do you think this situation can be handled? e. If your program doesn’t already do so, change its output to this: The value of the slope 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.