phys207hw1.sxw

# Prob 130 this question

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Unformatted text preview:     ¨ ¨ ¥¦  © ¦ ¥ ©  L 3 and represents volume (c). ¦ ¨ ¦¦ © ¨ ¥ ¨ ¦ ¥ ¨  ¥ ¥ ¦  ¥ © ¥ Prob 1.30) This question asks us to recall what we used in Prob 1.6. We used that the number of atoms in a system can be determined by the ratio of the mass of the system to that of the atom. Writing the equation we get: m sun 1.99 10 30 kg N 1.19 10 57 atoms 27 mH 1.67 10 kg Note the number of significant figures is three. Prob 1.38) For this problem we recall that the ratio of A to B can be expressed as the fraction A/B. Also recall that for a sphere of radius r, the surface area and volume: (38.1) A 4 r2 3 (38.2) V 43 r (a) Thus, the...
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## This note was uploaded on 07/28/2010 for the course PHYS 207 taught by Professor Winnokur during the Fall '06 term at University of Wisconsin Colleges Online.

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