Problem Solving with C++ (9th Edition)
9th Edition
ISBN: 9780133591743
Author: Walter Savitch
Publisher: PEARSON
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Chapter 4, Problem 4P
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In physics, an object that is in motion is said to have kinetic energy. The following formula can be
used to determine a moving object's kinetic energy:
KE = ½ m v2
The variables in the formula are as follows: KE is the kinetic energy, m is the object's mass in
kilograms, and v is the object's velocity, in meters per second. Write a function named
kineticEnergy that accepts an object's mass (in kilograms) and velocity (in meters per second) as
arguments. The function should return the amount of kinetic energy that the object has.
Demonstrate the function by calling it in a program that asks the user to enter values for mass and
velocity.
//
// Write a function that calculates the amount of money a person would earn over
// a period of years if his or her salary is one penny the first day, two pennies
// the second day, and continues to double each day. The program should ask the
// user for the number of years and call the function which will return the total
// money earned in dollars and cents, not pennies. Assume there are 365 days
// in a year.
//
function totalEarned (years) {
// Insert your code between here and the next comment block.
Do not alter
//
// any code in any other part of this file.
// Insert your code between here and the previous comment block.
// any code in any other part of this file.
Do not alter //
//
var years = parseInt(prompt('How many years will you work for pennies a day? '));
var totalDollarsEarned = totalEarned (years);
alert('Over a total of ' + years + ', you will have earned $' + totalDollarsEarned);
In physics, an object that is in motion is said to have kinetic energy. The following formula can be
used to determine a moving object's kinetic energy:
KE = ½ m v?
The variables in the formula are as follows: KE is the kinetic energy, m is the object's mass in
kilograms, and v is the object's velocity, in meters per second. Write a function named
kineticEnergy that accepts an object's mass (in kilograms) and velocity (in meters per second) as
arguments. The function should return the amount of kinetic energy that the object has.
Demonstrate the function by calling it in a program that asks the user to enter values for mass and
velocity.
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...
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- In physics, an object that is in motion is said to have kinetic energy. The following formula can be used to determine a moving object’s kinetic energy: KE = 1⁄2 mv2 The variables in the formula are as follows: KE is the kinetic energy in joules, m is the object’s mass in kilograms, and v is the object’s velocity in meters per second.Write a function named kineticEnergy that accepts an object’s mass (in kilograms) and velocity (in meters per second) as arguments. The function should return the amount of kinetic energy that the object has. Demonstrate the function by calling it in a program that asks the user to enter values for mass and velocity.arrow_forwardThe following formula can be used to determine the distance an object falls due togravity in a specific time period:d =112 gt2The variables in the formula are as follows:• d is the distance in meters,• g is 9.8,• and tis the time in seconds that the object has been falling.Write a function named fall i ngDi stance that accepts an object's falling time (in seconds)as an argument. The function should return the distance, in meters, that the object hasfallen during that time interval. Write a program that demonstrates the function by callingit in a loop that passes the values 1 through 10 as arguments and displays the return value.arrow_forwardWrite a program to gauge the rate of an employee’s raise from the previous year. The program asks for their annual salary in this year and the previous year. It estimates the hike percentage as the difference in their salary from the previous year divided by the previous year’s salary. Your program should allow the user to repeat this calculation as often as the user wishes. Define a function to compute the hike percentage for an employee. The hike rate should be a value of type double giving the rate as a percentage, for example 5.3 for 5.3%.arrow_forward
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