Is there a basis such that if we measure the bell state $\dfrac{|00\rangle+|11\rangle}{\sqrt2}$ the results might not be correlated at all (or at least not maximally)? For example $\dfrac{|00\rangle+|11\rangle}{\sqrt2}$ = $\dfrac{|++\rangle+|--\rangle}{\sqrt2}$ = $\dfrac{|LL\rangle-|RR\rangle}{\s...

In class we came across a problem that is essentially the following: "Suppose a source of sound has an intensity of 70 db. Suppose 9 additional sources produce the same sound in unison (so 10 identical sources of 70 db sound). What is the resulting sound intensity in db?" The solution uses the fa...

So there is this question in my text book that says us to arrange these following items by increasing density: Air, Exhaust from chimneys, honey, water, chalk, cotton and iron. Everything is straightforward except for Air and Chimney Exhaust. My answer was that Air is denser than chimney exhaust ...