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Prep test42 Dec 2003 section 2 #23
Posted: Wed Sep 08, 2010 12:36 am
by ekamy
why the correct answer to this question is D, is anyone could explain?
Re: Prep test42 Dec 2003 section 2 #23
Posted: Wed Sep 08, 2010 12:53 am
by s0ph1e2007
haha the correct answer is E
so that might be your problem
Re: Prep test42 Dec 2003 section 2 #23
Posted: Wed Sep 08, 2010 6:49 pm
by ekamy
Sorry about that. But why the answer would be E?
Re: Prep test42 Dec 2003 section 2 #23
Posted: Wed Sep 08, 2010 7:16 pm
by gdane
ekamy wrote:Sorry about that. But why the answer would be E?
The physics professors whole argument revolves around the belief that all types of ball lightning have the same cause, in this case superheated plasma in which electrical resistance fails, and that that cause would emit intense light.
Since the instances of ball lightning that the professor observed didnt have these characteristics, he believes that superheated plasma with failed electrical resistance is never a factor in causing ball lightning. Hence his assumption is what E says.
Using the assumption negation technique this answer is confirmed. "What would weaken the professors conclusion that superheated plasma..." If you negate E, it very much weakens the professors conclusion.
I hope this cleared things up for you.