Concept explainers
The Speed of Sound in Gases
When sound travels through a gas, its speed depends primarily on the density of the medium. The less dense the medium, the faster the speed will be. The following table shows the approximate speed of sound at 0 degrees centigrade, measured in meters per second, when traveling through carbon dioxide, air, helium, and hydrogen.
Medium | Speed (Meters per Second) |
Carbon dioxide | 258.0 |
Air | 331.5 |
Helium | 972.0 |
Hydrogen | 1,270.0 |
Write a
Input Validation: Check that the user has selected one of the available menu choices. Do not accept times less than 0 seconds or more than 30 seconds.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
EBK STARTING OUT WITH C++
Additional Engineering Textbook Solutions
Web Development and Design Foundations with HTML5 (8th Edition)
Java: An Introduction to Problem Solving and Programming (7th Edition)
Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
Java How To Program (Early Objects)
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
- One way to determine how healthy a person is by measuring the body fat of the person. The formulas to determine the body fat for female and male are as follows: Body fat formula for women: A1 = (body weight x 0.732) + 8.987 A2 = wrist measurement (at fullest point)/3.140 A3 = waist measurement (at navel) x 0.157 A4 = hip measurement (at fullest point) x 0.249 A6 = forearm measurement (at fullest point) x 0.434 B = A1 + A2 A3 A4 + A5 Body fat = body weight - B Body fat percentage = body fat x 100/body weight Body fat formula for men: A1 = (Body weight x 1.082) + 94.42 A2 = wrist measurement x 4.15 B = A1 A2 Body fat = body weight B Body fat percentage = body fat x 100/body weight Write a program to calculate the body fat of a person.arrow_forwardassuming a variable y has been assigned the value 6, what is the value of!(y<7)arrow_forwardPositive integer:-7.arrow_forward
- The Ibra College of Technology has an automated system that calculates the overall grade for each student of a class. The system gets to know the number of students in a class from the teacher. For each student, it asks their name and the number of subjects they took. For each subject, they ask the score. They then take the average of the scores of all the subjects, divide it by 10 and display the name and GPA for each student. Read the number of students in a class, the name and the number of subjects for each student. Then read the scores of each subject for each student, calculate the GPA by averaging the scores and dividing the average by 10. Finally, display the name and GPA for each student.arrow_forwardThe (x, y) coordinates of the hand at the top of a robot arm are given by: x = L, cos(8,) + L, cos(8, + 0,) y = L, sin(0,) + L,sin(8, + 02) Where Li and L2 are the distances of the parts of the arm from the shoulder to the elbow and from the elbow to the hand, 01 and 02 are the angles that these parts make with the x-axis. These angles can be expressed as: 0,(t) = a,t5 + a,t“ + azt³ 02(t) = bịt5 + b;t + b3t³ where t is the time. We assume that the arm starts to move at t= 0s and stops at tf=2s. The conditions that the angular position G1(t), angular velocity and angular acceleration should meet at the final time tf = 2 (in sec) are expressed in the following matrix form and allow us to obtain the coefficients a1, az and a3: 25 24 23 3x22||a2 = [az. [01f – 010] 5x24 4x23 | 20x23 12x22 6x2 with 0lf=43x/180, 610 = -197/180. a) Use MATLAB left division to solve the above system and get the coefficients a1, az and as b) Similarly the coefficients b1, bɔ and b3 can be obtained by solving a…arrow_forwardThe unit of convection current density is * O Ampere per Meter O Ampere O Volt per Meter O Ampere per Square Meterarrow_forward
- The total nuclear binding energy is the energy required to split a nucleus of an atom in its component parts: protons and neutrons, or, collectively, the nucleons. It describes how strongly nucleons are bound to each other. When a high amount of energy is needed to separate the nucleons, it means nucleus is very stable and the neutrons and protons are tightly bound to each other. The atomic number or proton number (symbol Z) is the number of protons found in the nucleus of an atom. The sum of the atomic number Z and the number of neutrons N gives the mass number A of an atom. Figure 1: Binding Energy in the Nucleus The approximate nuclear binding energy Eb in million electron volts, of an atomic nucleus with atomic number Z and mass number A is calculated using the following formula: See pictures The binding energy per nucleon (BEN) is calculated by dividing the binding energy (Eb) by the mass number (A). You are asked to write a program that requests the user for a valid atomic…arrow_forwardThe 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_forwardG = 4 , H = 7 , I = 6arrow_forward
- Interest Rates Savings accounts state an interest rate and a compounding period. If theamount deposited is P, the stated interest rate is r, and interest is compounded m timesper year, then the balance in the account after one year is P⋅(1+rm)m. For instance, if$1000 is deposited at 3% interest compounded quarterly (that is, 4 times per year), thenthe balance after one year is1000⋅(1+.034)4=1000⋅1.00754=$1,030.34.Interest rates with different compounding periods cannot be compared directly.The concept of APY (annual percentage yield) must be used to make the comparison. TheAPY for a stated interest rate r compounded m times per year is defined byAPY=(1+rm)m−1.(The APY is the simple interest rate that yields the same amount of interest after oneyear as the compounded annual rate of interest.) Write a program to compare interestrates offered by two different banks and determine the most favorable interest rate. SeeFig. 4.24.arrow_forwardCode,. Urgentarrow_forwardoctal numbers are made using the eight digits 0,1,2,3,4,5,6,7. How many octal numbers are 4 digits long, where the first digit must be from 1 to 7arrow_forward
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrC++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage LearningEnhanced Discovering Computers 2017 (Shelly Cashm...Computer ScienceISBN:9781305657458Author:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. CampbellPublisher:Cengage Learning
- Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage LearningProgramming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:CengageEBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT