Problem Solving with C++ (9th Edition)
9th Edition
ISBN: 9780133591743
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4, Problem 5PP
To maintain one’s body weight, an adult human needs to consume enough calories daily to (1) meet the basal metabolic rate (energy required to breathe, maintain body temperature, etc.), (2) account for physical activity such as exercise, and (3) account for the energy required to digest the food that is being eaten. For an adult that weighs P pounds, we can estimate these caloric requirements using the following formulas:
A. Basal metabolic rate: Calories required = 70 * (P/ 2.2)0.756
B. Physical activity: Calories required = 0.0385 * Intensity * P * Minutes
Here, Minutes is the number of minutes spent during the physical activity, and Intensity is a number that estimates the intensity of the activity. Here are some sample numbers for the range of values:
| Running 10 mph: | 17 |
| Running 6 mph: | 10 |
| Basketball: | 8 |
| Walking 1 mph: | 1 |
C. Energy to digest food: calories required = TotalCaloriesConsumed * 0.1
In other words, 10 percent of the calories we consume goes towards digestion.
Write a function that computes the calories required for the basal metabolic rate, taking as input a parameter for the person’s weight. Write another function that computes the calories required for physical activity, taking as input parameters for the intensity, weight, and minutes spent exercising.
Use these functions in a program that inputs a person’s weight, an estimate for the intensity of physical activity, the number of minutes spent performing the physical activity, and the number of calories in one serving of your favorite food. The program should then calculate and output how many servings of that food should be eaten per day to maintain the person’s current weight at the specified activity level. The computation should include the energy that is required to digest food.
You can find estimates of the caloric content of many foods on the Web. For example, a double cheeseburger has approximately 1000 calories.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Context: Measuring Air Quality
Levels of various air borne pollutants such as Nitrogen Monoxide (NO), Nitrogen Dioxide (NO2) and particulate matter (also called particle pollution) are all major contributors to the measure of overall air quality.
For instance, NO2 is measured using micrograms in each cubic metre of air (㎍/m3). A microgram (㎍) is one millionth of a gram. A concentration of 1 ㎍/m3 means that one cubic metre of air contains one microgram of pollutant.
To protect our health, the UK Government sets two air quality objectives for NO2 in their Air Quality Strategy
The hourly objective, which is the concentration of NO2 in the air, averaged over a period of one hour.
The annual objective, which is the concentration of NO2 in the air, averaged over a period of a year.
The following table shows the colour encoding and the levels for Objective 1 above, the mean hourly ratio, adopted in the UK.
Index
1
2
3
4
5
6
7
8
9
10
Band
Low
Low
Low
Moderate
Moderate
Moderate
High…
Engineers use both English and SI (Système International d’Unités) units on a regular basis. Some fields use primarily one or the other, but many combine the two systems. For example, the rate of energy input to a steam power plant from burning fossil fuels is usually measured in Btu/hour. However, the electricity produced by the same plant is usually measured in joules/s (watts). Automobile engines, by contrast, are often rated in horsepower or in ft lbf/s. Here are some conversion factors relating these different power measurements:
a) Generate a table of conversions from kW to hp. The table should start at 0 kW and end at 15 kW.
Use the input function to let the user define the increment between table entries. Use disp and
fprintf to create a table with a title, column headings, and appropriate spacing. The output should look like:
kW hP
0.0 0.00
2.5 3.35
5.0. 6.70
7.5 10.06
10.0 13.41
12.5…
The Harris-Benedict equation estimates the number of calories your body needs to maintain your weight if you do no exercise. This is called your basal metabolic rate, or BMR.
The calories needed for a woman to maintain her weight is:
WBMR = 655 + (4.3 × weight in pounds) + (4.7 × height in inches) − (4.7× age in years)
The calories needed for a man to maintain his weight is:
MBMR = 66 + (6.3 × weight in pounds) + (12.9 × height in inches) − (6.8 × age in years)
A typical chocolate bar will contain around 230 calories.
Write a java program that allows the user to input his or her weight in pounds, height in inches, and age in years. The program should then output the number of chocolate bars that should be consumed to maintain one’s weight for both a woman and a man of the input weight, height, and age.
NOTE: This is an application of a selection statement!
Input Data:
Use a named constant for the number of calories in a “typical chocolate bar.”
Use Scanner methods to enter the…
Chapter 4 Solutions
Problem Solving with C++ (9th Edition)
Ch. 4.2 - Prob. 1STECh. 4.2 - Convert each of the following mathematical...Ch. 4.2 - Write a complete C++ program to compute and output...Ch. 4.2 - Write and compile short programs to test the...Ch. 4.3 - Prob. 5STECh. 4.3 - Prob. 6STECh. 4.3 - Prob. 7STECh. 4.3 - Prob. 8STECh. 4.3 - Carefully describe the call-by-value parameter...Ch. 4.3 - Prob. 10STE
Ch. 4.3 - Write a function definition for a function called...Ch. 4.3 - Write a function definition for a function called...Ch. 4.3 - Write a function definition for a function isDigit...Ch. 4.3 - Write a function definition for a function...Ch. 4.4 - What is the purpose of the comment that...Ch. 4.4 - Prob. 16STECh. 4.4 - Prob. 17STECh. 4.4 - Carefully describe the process of program testing.Ch. 4.4 - Prob. 19STECh. 4.5 - If you use a variable in a function definition,...Ch. 4.5 - Suppose a function named Function1 has a variable...Ch. 4.5 - The following function is supposed to take as...Ch. 4.5 - Prob. 23STECh. 4.6 - Prob. 24STECh. 4.6 - Prob. 25STECh. 4.6 - Prob. 26STECh. 4.6 - Suppose you have two function definitions with the...Ch. 4.6 - This question has to do with the Programming...Ch. 4.6 - Prob. 29STECh. 4 - A liter is 0.264179 gallons. Write a program that...Ch. 4 - Modify your program from Practice Program 1 so...Ch. 4 - The price of stocks is sometimes given to the...Ch. 4 - Write a program to gauge the rate of inflation for...Ch. 4 - Enhance your program from the previous Practice...Ch. 4 - Write a function declaration for a function that...Ch. 4 - The gravitational attractive force between two...Ch. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Write a program that computes the annual after-tax...Ch. 4 - Write a program that asks for the users height,...Ch. 4 - Modify your program from Programming Project 2 so...Ch. 4 - Write a program that outputs the lyrics for the...Ch. 4 - To maintain ones body weight, an adult human needs...Ch. 4 - You have invented a vending machine capable of...Ch. 4 - Your time machine is capable of going forward in...Ch. 4 - Do Programming Project 11 from Chapter 3 except...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Write a simple assignment statement with one arithmetic operator in some language you know. For each component ...
Concepts of Programming Languages (11th Edition)
For the set of input waveforms in Figure 3-83, determine the output for the gate shown and draw the timing diag...
Digital Fundamentals (11th Edition)
Describe statement-level consistency.
Database Concepts (8th Edition)
The phrase "divide and conquer" means that all of the programmers on a team should be divided and work in isola...
Starting Out with Python (3rd Edition)
A file that contains a Flash animation uses the __________ file extension. a. .class b. .swf c. .mp3 d. .flash
Web Development and Design Foundations with HTML5 (9th Edition) (What's New in Computer Science)
Write an IfThen statement that sets the variable intFees to 50 when the Boolean variable blnIsMax equals True.
Starting Out With Visual Basic (7th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- (Mechanics) The deflection at any point along the centerline of a cantilevered beam, such as the one used for a balcony (see Figure 5.15), when a load is distributed evenly along the beam is given by this formula: d=wx224EI(x2+6l24lx) d is the deflection at location x (ft). xisthedistancefromthesecuredend( ft).wistheweightplacedattheendofthebeam( lbs/ft).listhebeamlength( ft). Eisthemodulesofelasticity( lbs/f t 2 ).Iisthesecondmomentofinertia( f t 4 ). For the beam shown in Figure 5.15, the second moment of inertia is determined as follows: l=bh312 b is the beam’s base. h is the beam’s height. Using these formulas, write, compile, and run a C++ program that determines and displays a table of the deflection for a cantilevered pine beam at half-foot increments along its length, using the following data: w=200lbs/ftl=3ftE=187.2106lb/ft2b=.2fth=.3ftarrow_forward(Thermodynamics) The work, W, performed by a single piston in an engine can be determined by this formula: W=Fd F is the force provided by the piston in Newtons. d is the distance the piston moves in meters. a. Determine the units of W by calculating the units resulting from the right side of the formula. Check that your answer corresponds to the units for work listed in Table 1.1. b. Determine the work performed by a piston that provides a force of 1000 N over a distance of 15 centimeters.arrow_forward(Heat transfer) The formula developed in Exercise 5 can be used to determine the cooling time, t, caused only by radiation, of each planet in the solar system. For convenience, this formula is repeated here (see Exercise 5 for a definition of each symbol): t=Nk2eAT3fin A=surfaceareaofasphere=4r2 N=numberofatoms=volumeofthespherevolumeofanatom Volume of a sphere sphere=43radius3 The volume of a single atom is approximately 11029m3 . Using this information and the current temperatures and radii listed in the following chart, determine the time it took each planet to cool to its current temperature, caused only by radiation.arrow_forward
- Quadratic Root Solver For a general quadratic equation y = ax? + bx + c, the roots can be classified into three categories depending upon the value of the discriminant which is given by b2 - 4ac First, if the discriminant is equal to 0, there is only one real root. Then, if the discriminant is a positive value, there are two roots which are real and unequal. The roots can be computed as follows: -b+ Vb? – 4ac 2a Further, if the discriminant is a negative value, then there are two imaginary roots. In this case, the roots are given by b ь? - 4ас 2a 2a Programming tasks: A text file, coeff.txt has the following information: coeff.txt 3 4 4 4 1 4 Each line represents the values of a, b and c, for a quadratic equation. Write a program that read these coefficient values, calculate the roots of each quadratic equation, and display the results. Your program should perform the following tasks: • Check if the file is successfully opened before reading • Use loop to read the file from main…arrow_forwardPython Knapsack Problem: imagine you are carrying a knapsack with capacity to hold a total of weight C. You are selecting among n items with values A={a_1, a_2, ... , a_n} and associated weights W={w_1, w_2, ... , w_n}. Here the weights and values are all positive. You wish to maximize the total value of the items you select not exceeding the given weight capacity, example, maximize sum_{a in A} such that sum_{w in W} <= C. Note that you can only select your items once. Reformulate this as a bottom-up dynamic programming problem as follows. Define K_{i,j} as the highest possible value sum considering items 1 through i and total weight capacity j (j <= C). What is the base case i.e. K_{0,j} for all j and K_{i,0} for all i. What is the loop statement?arrow_forwardWhile each of us has had a reading of our blood pressure taken, many of us may not know what blood pressure actually means. Blood pressure is expressed as a ratio of the maximum (systolic) and minimum (diastolic) pressure found in the aorta during one cardiac cycle. These pressure values are measured in millimeters of mercury (mmHg). Determining abnormal blood pressure is critical for diagnosing and averting a number of serious health problems (e.g. heart disease and stroke). Doctors therefore make decisions about the potential for serious health problems based on a few simple calculations. One simple calculation of interest is pulse pressure (PP). The pulse pressure of an individual can be computed as the difference between the systolic and diastolic pressures. Create a Java class file called PulsePressureIST140. This program will compute a user's pulse pressure based on two inputs: the systolic pressure (a int value) and the diastolic pressure (an int value). Once the input is…arrow_forward
- While each of us has had a reading of our blood pressure taken, many of us may not know what blood pressure actually means. Blood pressure is expressed as a ratio of the maximum (systolic) and minimum (diastolic) pressure found in the aorta during one cardiac cycle. These pressure values are measured in millimeters of mercury (mmHg). Determining abnormal blood pressure is critical for diagnosing and averting a number of serious health problems (e.g. heart disease and stroke). Doctors therefore make decisions about the potential for serious health problems based on a few simple calculations. One simple calculation of interest is mean arterial pressure (MAP). The mean arterial pressure is the average pressure during the cardiac cycle. The MAP of a normal, resting heart can be computed by the formula: MAP = DP + (1/3)PP where DP is the diastolic pressure and PP is the pulse pressure. Create a Java class file called MeanArterialPressure. This program will compute a user's mean arterial…arrow_forwardplease use python The following equations estimate the calories burned when exercising (source): Women: Calories = ( (Age x 0.074) — (Weight x 0.05741) + (Heart Rate x 0.4472) — 20.4022 ) x Time / 4.184 Men: Calories = ( (Age x 0.2017) + (Weight x 0.09036) + (Heart Rate x 0.6309) — 55.0969 ) x Time / 4.184 Write a program using inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively. Output calories burned for women and men. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:print('Men: {:.2f} calories'.format(calories_man)) Ex: If the input is: 49 1 55 148 60arrow_forwardINTRODUCTION: Heat conduction from a cylindrical solid wall of a pipe can be determined by the follow T1-T2 q = 2nLk R2 In R. where: q is the computed heat conduction in Watts. k is the thermal conductivity of the pipe material in Watts/°C/m. L is the length of the pipe in cm. Ri is the inner radius of the pipe in cm. R2 is the outer radius of the pipe in cm. Ti is the internal temperature in °C. T2 is the external temperature in °C. ASSIGNMENT: Write a C program that will allow the user to enter the inner and outer radii of the pipe, the the internal and external temperatures. Once the user enters the input values, the programarrow_forward
- The mitotic index is a calculated value that represents the percentage of cells in a sample that are actively dividing. It involves counting the total number of cells present including those actively dividing or those in interphase, the total number of cells that are actively dividing (not including interphase), and then calculating what percentage of the total cells are actively dividing (the percentage undergoing mitosis). The formula is: Mitotic index= # of cells in mitosis / # of cells in total x 100% Use this formula to calculate the mitotic index for the diagram seen in Question 5. Show your calculations (you can use * for multiplication and / for division if you prefer) and indicate your final answer as a percentage rounded to the nearest tenth of a percentage (1 decimal place). Note: The mitotic index seen in this simulation is much higher than you would see in a real tissue sample. The sample was simulated this way so that the counting and calculations would be easier…arrow_forwardSection: FactThyroid function is measured using a factor called TSH, which stands for thyroid-stimulatinghormone. A TSH test is a blood test that measures this hormone. TSH normal values are 0.5 to 5.0mIU/L. If TSH is over 5.0 thyroid is underactive. On the other hand, if TSH is less than 0.5 thyroid isoveractive.arrow_forwardCalculating the amount of miles per gallon you received on your last tank of gas by dividing the total distance you've travelled since your last fill-up by the number of gallons of gas bought would be an example of how to use a(n) formula.a. heuristic b. morpheme a. heuristic b. morphemeOverextension c. algorithm d. overextensionarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
Control Structure in Data Structure - Data Structures - Computer Science Class 12; Author: Ekeeda;https://www.youtube.com/watch?v=9FTw2pXLhv4;License: Standard YouTube License, CC-BY