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The nucleus of some isotopes will spontaneously undergo nuclear decay. These isotopes are said to be radioactive. what causes the nucleus of an isotope to be radioactive? Question 17 options: A. the net
asked
Jul 9, 2018
Physics
high-school
2
answers
5
votes
129k
views
True or false the same amount of work is done when 7 pounds are lifted 100 feet as when 100 pounds are lifted 7 feet
asked
Apr 20, 2018
Physics
middle-school
2
answers
4
votes
118k
views
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