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Sound level L in units of decibel (dB) is determined by
where p is the sound pressure of the sound (in Pascals, abbreviated Pa), and p0 is a reference sound pressure equal to
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- Write a program that calculates the potential energy of 3 charges q1 = 1, q2 = 2, q3 = 3 located at points (1,2, 3), (3, –4, –5), and (-4, 2, –6) respectively. The units are coulombs for charge and meters for coordinates. The energy is given by the expression 9293 9193 9142 + T12 U = k r23 T13 where is the distance between the charges q; and q;, and k = 9 × 10º in SI units. Tij Your program should print the result on the screen.arrow_forwardA number in base 2 (binary) is a number such that each of its digits is 0 or 1. To convert from binary to decimal (base 10), the digits starting from the right are multiplied by powers of 2 (starting at 0) and added. For example, the value in decimal of 10011 is calculated as follows: 1 ×2º+ 1 ×21+ 0 ×2²+ 0 ×2³+ 1 ×24=19 Write a program that reads from the user a 5-digit integer representing a value in binary and displays its equivalent value in decimal. Note that if the user enters an integer which digits are other than 0 or 1, the program displays a message stating that the number is not valid. Sample Run 1: Enter a 5-digit integer made of Os and ls: 10011 10011 in decimal is 19 Sample Run 2: Enter a 5-digit integer made of Os and 1s: 13001 13001 is not validarrow_forwardf. A laborant in a laboratory does a number of antigen tests in one day. Write a program that simulates the number of antigen tests done in a day in a laboratory, displays the number of positives and negatives, and calculates the % of positives in one day. Your program needs to first generate a random number that will show the number of tests done in a day. One laboratory in a day cannot do more than 100 tests and less than 1 (they do at least one). Then for each of the tests, your program needs to generate a random number to show whether they are positive or negative. In order to write this program, you need to have the following three functions used by the main function: test result (void): This function generates a test result. It should randomly return either one or zero. 1 means positive test result and 0 means negative test result. float positive percentage (int,int) : This function takes the total number of positives and the total number of tests and returns the % of positives.…arrow_forward
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- C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning