Search found 67 matches

by ET2020
December 26th, 2019, 3:36 pm
Forum: Ping Pong Parachute B/C
Topic: Ping Pong Parachute B/C
Replies: 355
Views: 35101

Re: Ping Pong Parachute B/C

What have people done to prevent their rocket from flipping mid-flight? I've tried adjusting a few things but the rocket always seems to flip when it reaches the top, which is causing inconsistencies with parachute deployment.
by ET2020
December 21st, 2019, 7:54 am
Forum: Regionals & States
Topic: New York 2020
Replies: 240
Views: 25120

Re: New York 2020

Name wrote: hm let's make this a bit interesting
1. Columbia
2. Stuyvesant
3. Ward Melville
4. FM
5. Kellenberg
6. Syo
7. Mount Academy
8. GNS
9. Staten Island Tech
10. Brooklyn Tech
Ooh these are some interesting predictions! What makes you think Stuyvesant will make it to nationals this year?
by ET2020
June 3rd, 2019, 7:13 am
Forum: Mission Possible C
Topic: Scores Discussion
Replies: 31
Views: 7279

Re: Scores Discussion

Anyone know what the top scores at nats were?
by ET2020
March 16th, 2019, 5:32 pm
Forum: 2019 Regionals & States
Topic: New York 2019
Replies: 299
Views: 48453

Re: New York 2019

Congratulations to Ward Melville and Columbia! It was a great competition and I’m glad that all of the events ran smoothly. Also, I just want to point out that Columbia set a new record as the only team to ever score under 100 at New York States. They absolutely look like a top 5 national team.
by ET2020
March 16th, 2019, 4:28 pm
Forum: Mission Possible C
Topic: Scores Discussion
Replies: 31
Views: 7279

Re: Scores Discussion

1348 won New York State with an 85 second target. We had 9 tasks but no touches.
by ET2020
March 9th, 2019, 12:35 pm
Forum: 2019 Question Marathons
Topic: Astronomy C
Replies: 55
Views: 8616

Re: Astronomy C

Two stars orbit in a binary system. Star A's orbit traces a circle with an apparent radius of 600 milliarcseconds, while star B's orbital traces a circle with an apparent radius of 200 milliarcsecond. Star A is a main sequence star with a luminosity of 4.2 solar luminosities and an apparent magnitud...
by ET2020
February 26th, 2019, 8:39 pm
Forum: 2019 Question Marathons
Topic: Astronomy C
Replies: 55
Views: 8616

Re: Astronomy C

Attempt:|Galaxy A: 2.692*10^27 W = 7.03 solar luminosities M = 4.83-2.5log(L) = 2.71 d = 10^([m-M+5]/5) = [b]68.48 pc[/b] (this is an impossibly close galaxy, but you can still do the math with it) Galaxy B: P (days) = 365.25*0.04252 = 15.53 days M = -2.81logP - 1.43 = -4.78 Now this is the tricky ...
by ET2020
February 26th, 2019, 11:59 am
Forum: 2019 Study Events
Topic: Astronomy C
Replies: 125
Views: 24497

Re: Astronomy C

I've noticed that there seem to be two different equations used to calculate recessional velocity from redshift. The more commonly used one, v = Z*c, works fine for relatively close objects, but creates a problem for objects with redshifts > 1. The equation is problematic because it implies that we ...
by ET2020
February 20th, 2019, 3:36 pm
Forum: 2019 Regionals & States
Topic: New York 2019
Replies: 299
Views: 48453

Re: New York 2019

Where can the results to this poll be found? I'd like to see what people are saying.
by ET2020
February 20th, 2019, 3:21 pm
Forum: 2019 Nationals
Topic: Way Too Early Predictions
Replies: 402
Views: 55059

Re: Way Too Early Predictions

Div C: 1. Troy 2. Acton-Boxborough 3. Mason 4. Solon 5. WWPN (or WWPS) 6. Mounds View 7. 7L/Clements 8. Boca Raton 9. Columbia 10. Harriton 11. Mira Loma 12. New Trier This is looking like one of the most competitive groups of teams in years. I listed 12 because all of them seem like easy top 10 pla...

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