This is Giancoli Answers with Mr. Dychko. Each binary digit represents a power of two in decimal system so the first digit is, if it is set as a one then that represents two to the power of zero which is a decimal quantity one. And if the next digit is set it represents two to power of one which would be two but its not set. So that doesn't make anything but the next place value is set which is two to the power two, so that's quantity four and then this next place value is set which is two to the power of four which makes decimal quantity 16 and then two to the power six is set which makes decimal quantity 64, add these together and you get 85 is the decimal representation of 01010101.

Find us on:

Giancoli Answers, including solutions and videos, is copyright © 2009-2024 Shaun Dychko, Vancouver, BC, Canada. Giancoli Answers is not affiliated with the textbook publisher. Book covers, titles, and author names appear for reference purposes only and are the property of their respective owners. Giancoli Answers is your best source for the 7th and 6th edition Giancoli physics solutions.