FizziksGuy
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Everything posted by FizziksGuy
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Yes, equations given for both parts of the exam.
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Glad to hear it went well. The center of mass concept is one that many times allows you to solve problems more simply than traditional 'plug and chug' formulas. You'll find it useful in a variety of units in the course!
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Thanks much! Looking forward to using these right after our spring break!
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Google is your friend: http://electron6.phys.utk.edu/101/CH7/phase_transitions.htm
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acts like a wire
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Sounds like you'll have a head start on our "post-AP" project!
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Not quite sure I understand what "Mr. Fullerton is for the boys" means, but glad to hear you've gotten something out of the course. I, too, am glad you've stuck with it. Couple more weeks of pushing and the finish line is in sight!
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I was right with you up to the part where you said "it isn't that horrible of a movie." The missus made me sit through it once. The post-viewing fever lasted three days. I was right with you up to the part where you said "it isn't that horrible of a movie." The missus made me sit through it once. The post-viewing fever lasted three days.
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And of course there's that whole "Gallifrey and the Daleks are time-locked" complication. As corny and goofy as the show is, what always impresses me is the quality of the writing... and I'm really enjoying the fact that my 7-year-old is now all about watching Doctor Who with her dad whenever mom isn't home (Mommy would find it 'inappropriate.')
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So thrilled you've enjoyed the course. Recognizing it's the most technically challenging (as well as highest workload), and coupling that with an exceedingly frustrating instructor who is happy to sit back and let you struggle, you've done a mighty nice job in stepping up to the challenge. Only a couple weeks left... don't let up!
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You're on the home stretch of a mighty difficult course, not just in content but also in terms of level of independence. You've done well -- keep it up for just a few more weeks!
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The Physics of Moving On :(
FizziksGuy commented on ajgartland22's blog entry in My Life, Baseball and Physics
Sure been nice having you in here! -
The Physics of Tank Armor
FizziksGuy commented on VagueIncentive's blog entry in Actual Physics from an Actual Physics Student
Nice post! I appreciate how you put some time and thought into it. -
When the switch is first closed, the capacitor acts like a wire. Both B and D will have no effective resistance because there is a short from one side of the battery to the other where the capacitor is. For a split second, they will have near zero resistance, and a very large spike in current.
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It depends where on the object that force is being applied.
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It depends on where you set your reference angle for theta -- I'd defined mine from a perpendicular perspective. You could also have cosine instead depending upon your starting point.
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Checked: A) B=D, C, A, E; D, B=C, A=E There is a typo in an early edition of the book
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Once the lid pops off, there's no longer a pressure differential holding the lid. Therefore you have 800N up, and 4 N down, for a net of 796 N up.
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It's actually pretty cool to learn about all the safety mechanisms working inside... I took a class where we spent about an hour looking at all the engineering that goes into a standard Glock (chosen because they're very reliable and simple) -- and it really gives you an appreciation for the level of detail and creativity that goes into strong design.
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This is a right hand rule question. You'll have to think in three dimensions. As current flows through the wire to the right, a magnetic field is created which travels around the wire. Above the wire (in the air above the book if you're looking at it on paper), the direction of this field is toward the bottom of the page. Below the wire (down into the book if you're looking at it on paper), the direction is toward the top of the page. This relates back to the section on Fields due to Current-Carrying Wires on pages 173-174.
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To think about this one, recognize there are free charges in the wire (sea of electrons, it's a conductor.) Those charges are moving in a magnetic field. Moving charges in a magnetic field experience a force, which will manifest itself in terms of an electric potential difference.
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PaVG #16: Zelda and the Song of Storms Paradox
FizziksGuy commented on OcktoByte's blog entry in Physics and Video Games
Lots of wibbly wobbly timey wimey stuff here... -
Off to a great start!
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Yup, great catch! Updating...
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Space Engine
FizziksGuy commented on VagueIncentive's blog entry in Actual Physics from an Actual Physics Student
Absolutely beautiful. And you put that first video together? Great dramatic musical selection to go with it!!!