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physics problems

Forums: Physics, Do My Homework
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haniya
 
Reply Tue 3 Jun, 2014 06:57 am
if half life of a substance is 3.8 days and its quantity is10.38g .Then the quantity Left after 19days Will be?
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Type: Question • Score: 4 • Views: 629 • Replies: 4
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fresco
 
  2  
Reply Tue 3 Jun, 2014 10:36 am
@haniya,
The substance undergoes 19/3.8 halvings.
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bobsal u1553115
 
  0  
Reply Tue 3 Jun, 2014 02:45 pm
@haniya,
Hmmmm .... I wonder how many 3.8 days are in 19 days? Hmmmmmmm .....
now do it yourself.
cicerone imposter
 
  1  
Reply Tue 3 Jun, 2014 02:50 pm
@bobsal u1553115,
Answer: 5
cicerone imposter
 
  1  
Reply Tue 3 Jun, 2014 04:38 pm
@cicerone imposter,
or 0.324375g
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