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Last edited Thu Aug 9, 2012, 09:43 PM - Edit history (1)
I guessed on a couple. But they were educated guesses. I was able to eliminate two answers and took my best shot.
Damn! A 1970's physics degree really helps. One of the toughies was #50. I couldn't have handled it without unit analysis.
on edit: and the catalytic converter one. Whew! I really sweated that one. It helps understanding the periodic table. Plus, help to the answer is often within the question itself. That led me to the correct choice.
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