MPB 8115 Lecture 2: 4b

<p>hi people, is there&#160;anyone who&#160;knowswhere I can find the solutions of Callen 2nd ed.? especially thechapter 7.</p>
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<p>Rubidium atoms are cooled to 0.16 &#956;K&#160; inan atom trap. What is their de Broglie wavelength?</p>
<p>I used&#160;&#955;=h/&#8730;(2&#960;mkT)and got 4.698x10^-7 m but it was wrong. Can't figure out for thelife of me what I did wrong. I converted mass to kg from amu, Kfrom&#160;&#956;K, and used the correct constants(6.626e-34;1.38e-23)</p>