Search found 101 matches

March 17th, 2012, 10:08 am
Forum: 2012 Study Events
Topic: Astronomy C
Replies: 176
Views: 30618

Re: Astronomy C

Do you guys know where a good source would be to get to the more complicated mathematics portion of this event? I think I have built a good basis already and am ready to try to reach for another level.
March 17th, 2012, 10:07 am
Forum: Mission Possible B
Replies: 58
Views: 14464

In your opinion guys, what constitutes the beginning and ending of the third class lever task?

In my opinion, the lever activating is the beginning and the ending is when the object stops at its final placement. Is this similar to what you guys are getting at?
February 24th, 2012, 8:42 am
Forum: 2012 Study Events
Topic: Astronomy C
Replies: 176
Views: 30618

Re: Astronomy C

thank you! the links i found helped! but, how did you find the absolute magnitude from the light curve? or is it a given variable in the equation?
There is a relationship that you need to find using this: http://outreach.atnf.csiro.au/education ... tions.html
February 24th, 2012, 8:15 am
Forum: 2012 Study Events
Topic: Astronomy C
Replies: 176
Views: 30618

Re: Astronomy C

Are you getting 3.48 E7 ly (1.07 E7 pc)? RandomPerson and I both tried the question independently and both of us got the answer above - I'd say key is wrong, unless all three of us are doing the same thing wrong and not realizing it. I did try extremes (using the peaks and troughs for app. mag., an...
February 23rd, 2012, 11:45 am
Forum: 2012 Study Events
Topic: Astronomy C
Replies: 176
Views: 30618

Re: Astronomy C

Can someone walk me through what I am doing wrong in the MN Regionals Test on the test exchange # 27? So, they gave the light curve of the Cepheid Variable. I determined the average apparent magnitude to be + 24.9. I then said that the period was 25 days. I used this in the period luminosity relatio...
March 27th, 2011, 8:12 am
Forum: Mission Possible C
Replies: 89
Views: 19523

Re: Circular to Linear

I also used the winch system. However after reading the clarifications and seeing that no gears were allowed...I was wondering does the motor have gears inside of it that would cost points for the task? I had asked this question earlier in the year and Dark Sabre and Primate do a good job explainin...
March 12th, 2011, 9:10 pm
Forum: Mission Possible C
Replies: 123
Views: 22762

Has anyone seen dry ice at competition yet? o__o
March 9th, 2011, 5:04 pm
Forum: 2011 Invitationals, Regionals, and States
Topic: South California
Replies: 130
Views: 19449

Re: South California

haha, yeah C-23! I should be studying instead of typing this haha.
March 8th, 2011, 7:42 pm
Forum: 2011 Invitationals, Regionals, and States
Topic: South California
Replies: 130
Views: 19449

Re: South California

Team numbers are out.
March 4th, 2011, 8:55 pm
Forum: General Competition
Topic: How many medals and ribbons have you earned?
Replies: 63
Views: 5265

Re: How many medals and ribbons have you earned?

The Invitationals explins it all.

I think my medal count is around 20?
From about 4 years + regionals.