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Andrew Zimmerman Jones

February Big Bang Episodes

By February 23, 2012

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Big Bang Theory Season 4 DVDThe last few weeks have had some hilarious episodes of CBS' The Big Bang Theory. They haven't all necessarily had a strong physics focus, but sometimes you can still have good television even without physics. (Amazing, I know, but it seems to be true!)

Here are the reviews of the episodes ... which contain links (where appropriate) to the related science:


Comments

March 9, 2012 at 8:38 am
(1) Anonymous says:

Dear Sirs,

I have been given a set of Physics questions for my A Level coursework but we have not covered it in class and though I have tried talking to my teacher about it he just says not to worry and that Physics is obviously not my thing as I am dense but I am now intrigued to know how one would answer the questions. I tried looking up the answer in textbooks from the library and on internet sites but still very confused so please can you help me.

I would appreciate it if you could explain the steps in a simple and basic language preferably non-scientific and tell me how one derives the answer you get to my questions as then perhaps I can attempt them again and see if I get the same answers as you.

Question 1: On 6 October 2008, a meteoroid designated 2008 TC3 was discovered by the automated Catalina Sky Survey 1.5m telescope at Mount Lemmon, Tucson, Arizona, USA. It exploded at a height of about 37km above Earth’s atmosphere in around 600 fragments. The meteorite had a total mass of about 10.5kg and was probably about 3.6m across. Assuming that it spherical in shape with a density of 3.0 x 10 cube3 kg m-3 what is the mass of the asteroid?

1b) Calculate the percentage of the meteoroid that survived to be found as meteorites on the ground and is this percentage making up the original meteoroid?

Question 2) The meteoroid was travelling at 25 km s-1 calculate its kinetic energy and given that the final explosion released around 3×10 9joules of energy calculate terminal velocity

In conclusion if you can help please thank you in advance and in regards to being considered dense and as it is for my A Level Physics coursework I rather stay anonymous.

I look forward to hearing from you shortly.
Regards Anonymous

April 15, 2012 at 7:17 pm
(2) SpaceGonk says:

These questions, word for word, are the questions being asked in a current Open University assessment for a level 2 science course. If anyone answers these questions they will be helping people cheat on an assessment that other people have worked hard to complete,

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