# Revision history of "Giancoli Physics (5th ed) Chapter 30"

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• (cur | prev) 11:10, 3 March 2009‎ ‎ . . (11,443 bytes) (+237). . (/* 44. 55-Cs-124 has a half life of 30.8 s. (a) if we have 7.8 micrograms initially, how many nuclei are present? (b) How many are present 2.0 min later? (c) What is the activity after this time? (d) After how much time will the activity drop to les)
• (cur | prev) 11:08, 3 March 2009‎ ‎ . . (11,206 bytes) (+483). . (/* 44. 55-Cs-124 has a half life of 30.8 s. (a) if we have 7.8 micrograms initially, how many nuclei are present? (b) How many are present 2.0 min later? (c) What is the activity after this time? (d) After how much time will the activity drop to les)
• (cur | prev) 11:02, 3 March 2009‎ ‎ . . (10,723 bytes) (+2). . (/* 44. 55-Cs-124 has a half life of 30.8 s. (a) if we have 7.8 micrograms initially, how many nuclei are present? (b) How many are present 2.0 min later? (c) What is the activity after this time? (d) After how much time will the activity drop to les)
• (cur | prev) 13:38, 2 March 2009Cmurray (talk | contribs). . (10,721 bytes) (+43)
• (cur | prev) 13:34, 2 March 2009Cmurray (talk | contribs). . (10,678 bytes) (+58)
• (cur | prev) 13:33, 1 March 2009Cmurray (talk | contribs). . (10,620 bytes) (+256). . (44. Question)
• (cur | prev) 13:31, 1 March 2009Cmurray (talk | contribs). . (10,364 bytes) (+16). . (37. The decay constant of a given nucleus is 5.4 x 10<sup>-3</sup> s<sup>-1</sup>. What is its half-life)
• (cur | prev) 13:30, 1 March 2009Cmurray (talk | contribs). . (10,348 bytes) (+162). . (37. Question)
• (cur | prev) 13:29, 22 January 2008‎ ‎ . . (10,186 bytes) (+224). . (Problems)
• (cur | prev) 13:20, 22 January 2008‎ ‎ . . (9,962 bytes) (+9,962). . (New page: ==Problems== ===1. Question=== <blockquote> 3727 MeV/c<sup>2</sup> </blockquote> Table of Contents ---- ===2. Question=== <blockquote> Solution goes here </blockquote> [[#top ...)