Prep test42 Dec 2003 section 2 #23

ekamy
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Prep test42 Dec 2003 section 2 #23

Postby ekamy » Wed Sep 08, 2010 12:36 am

why the correct answer to this question is D, is anyone could explain?

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s0ph1e2007
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Re: Prep test42 Dec 2003 section 2 #23

Postby s0ph1e2007 » Wed Sep 08, 2010 12:53 am

haha the correct answer is E
so that might be your problem

ekamy
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Joined: Wed Jul 14, 2010 12:36 am

Re: Prep test42 Dec 2003 section 2 #23

Postby ekamy » Wed Sep 08, 2010 6:49 pm

Sorry about that. But why the answer would be E?

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gdane
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Re: Prep test42 Dec 2003 section 2 #23

Postby gdane » Wed Sep 08, 2010 7:16 pm

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.




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