Essential University Physics: Volume 1 (4th Edition) Clone

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 14 - Exercises and Problems - Page 272: 59

Answer

10 meters

Work Step by Step

We use the equation for intensity to find the value of x, which we will call the distance that you need to be at: $ x = r_{15}\sqrt{\frac{I_{15}}{I_x}}=15 \sqrt{\frac{750}{270}}= 25 m$ Subtracting this from where you started, we find: distance $= 25-15=10\ m$
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