Recent content by char808
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Solve Orbital Period for Two Identical Planets Around Star
Ok, do you have a resource on how to look at these problems? My book only covers 1 satellite around a planet. ∑Fm=GMm/r^2 +Gmm/(2r)2 So can I say:? mam= GMm/r2+Gmm/(2r)2 = mv2/r and T=2∏r/v- char808
- Post #3
- Forum: Introductory Physics Homework Help
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Solve Orbital Period for Two Identical Planets Around Star
Homework Statement Two identical planets (equal masses, m) move in identical circular orbits around a star (mass M) diametrically opposed to each other (opposite sides of the planet). Find an expression in terms of m, r, M and G for the orbital period T. Homework Equations...- char808
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- Gravity Orbits
- Replies: 4
- Forum: Introductory Physics Homework Help
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Engineering Mechanical vs. Civil engineering
I'm headed back to school for a civil engineering degree in a month. I already have a degree so I will have some space in my schedule for additional classes on top of what is required. I am interested in project management and working outside more than less. Any thoughts on what classes to look...- char808
- Post #35
- Forum: STEM Career Guidance
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What is the Correct Cross Product for Finding a Normal Vector?
I think I worded it incorrectly. Mostly I am interested in the cross products and if that particular cross product is correct. IE <1,-1,2> X <-1,1-0> = <-2, 3, 0> ignore the rest of it...- char808
- Post #3
- Forum: Calculus and Beyond Homework Help
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What is the Correct Cross Product for Finding a Normal Vector?
Homework Statement The whole problem is : Find eqn of plane through (2, 0, 2) perpendicular to vectors <1, -1, 2> and <-1, 1, 0> I am trying to figure out if I am making an error with cross products here... Find the normal (perpendicular) vector of <1, -1, 2> and <-1, 1, 0>...- char808
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- Plane
- Replies: 3
- Forum: Calculus and Beyond Homework Help
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Music Does Music Improve Study Focus?
I can't study without background music. I also cannot study at home and prefer places like coffee shops and I use the music to tune out what is going on around me.- char808
- Post #3
- Forum: Art, Music, History, and Linguistics
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What is your school work organization system?
One folder, one notebook for notes, one notebook for homework that isn't typed per class. A general "scratch notebook" for everything else. Everyone is different though.- char808
- Post #2
- Forum: STEM Academic Advising
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Postal Paradox: Risk Mail Theft or Take a Chance of Injury?
There are all sorts of lockable post office boxes. http://www.nationalmailboxes.com/roadside-mailboxes.html You can build a breakaway post by drilling 2 - 1.5in holes in a 4x4 pressure treated post. This is what DOT does for their signs on highways. When I was a kid, my parents had a...- char808
- Post #8
- Forum: General Discussion
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How Much Should I Save for Retirement and a House?
If you run the math on 100k loan at 3.875% invested in a home and compare it to the purchasing power of the same amount of money in 30 years at 4% inflation you will notice that the two numbers are very close to one another. Probably one of the few times where you can get a home mortgage...- char808
- Post #25
- Forum: STEM Career Guidance
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How Much Should I Save for Retirement and a House?
Also, to have the same purchasing power of $17,000 today, you will need to have access to ~$47,800 in 35 years assuming 3% inflation. http://www.calculatorweb.com/calculators/inflationcalc.shtml- char808
- Post #15
- Forum: STEM Career Guidance
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News Rod Blagojevich goes to jail - why not public service?
He already had his shot at public service and look how that turned out. A few years in a concrete cell might be in order this time around.- char808
- Post #3
- Forum: General Discussion
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How Much Should I Save for Retirement and a House?
I think if you have time to pay attention to what is going on in the stock market it can be a good place to invest some money. You really have to do your homework and pay attention to the fees you are paying to make it worthwhile. You can open an Etrade (or similar) account and not put any...- char808
- Post #12
- Forum: STEM Career Guidance
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News Newt Gingrich Calls for Repeal of Child Labor Laws in Impoverished Areas
Isn't it inappropriate to pay a worker under the age of 18 a lower minimum wage to do the same task (bag groceries, sweep floors) than an older worker? Why is the younger worker any less valuable than a similarly unskilled 18 year old?- char808
- Post #38
- Forum: General Discussion
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Engineering Career Change: Forestry -> Engineering
Because of the coursework required for my forestry degree, I will have to go back and retake courses at a higher level of rigor. IE - Chem 142 vs Chem 221 Unfortunately, I am fairly certain this will prevent me from applying to a masters program in engineering. I am looking at 3-3.5 years of...- char808
- Post #4
- Forum: STEM Career Guidance
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Engineering Career Change: Forestry -> Engineering
Career Change: Forestry --> Engineering I am contemplating returning to school to complete a BS in Engineering (possibly Environmental). I went to school 10 years ago planning to start an engineering program and was distracted by fighting wildland fires and ended up with a Forest Resources BS...- char808
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- Career Career change Change Engineering
- Replies: 3
- Forum: STEM Career Guidance