The values of T and U depend on the respective 5th and 6th digits of your matric number as shown in Table Q2. For example, if your matric number is AD170154 gives the value of T = 6 and U = 2. (a) A siren has a sound power of 4 + T watts. Given Iref = 10-12 W/m² and at distance, r = 100 × U meters: (i) Calculate the sound pressure in decibels based on the intensity. (ii) Determine whether the siren will be heard at the distance, r= 100 × U meters or not?
The values of T and U depend on the respective 5th and 6th digits of your matric number as shown in Table Q2. For example, if your matric number is AD170154 gives the value of T = 6 and U = 2. (a) A siren has a sound power of 4 + T watts. Given Iref = 10-12 W/m² and at distance, r = 100 × U meters: (i) Calculate the sound pressure in decibels based on the intensity. (ii) Determine whether the siren will be heard at the distance, r= 100 × U meters or not?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
USE THIS NUMBER 190018
T= 9
U =2
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