FizziksGuy

Happy Holidays! [ATTACH=CONFIG]315[/ATTACH]I am thrilled to announce the release of Honors Physics Essentials, an algebra-based physics book designed to assist beginning physics students in their high school and introductory college physics courses as an invaluable supplemental resource in class as well as a review guide for standardized physics assessments such as the SAT Subject Test in Physics, PRAXIS Physics, and CST Physics exams. You can find it online at Amazon.com for only $12.95. Honors Physics Essentials is an easy-to-read guide to algebra-based introductory physics, featuring more than 500 worked-out problems with full solutions and covering topics such as: kinematics, dynamics, momentum, impulse, gravity, uniform circular motion, rotational kinematics, work, energy, power, electrostatics, circuits, magnetism, microelectronics, waves, sound, optics, thermal physics, fluids, and modern physics. The 384-page 6”x9” paperback book is integrated with the APlusPhysics.com website, which includes online question and answer forums, videos, animations, and supplemental problems to help students master Honors Physics Essentials. You can find more information at http://www.aplusphysics.com/honors. Volume discounts and e-book versions are available, as are class and site licenses for electronic versions starting as low as $3 per student. I have so many people to thank for their contributions to this endeavor that I hardly know where to begin. First, I'd like to thank all the fans of the first book, Regents Physics Essentials (RPE), and fans of the APlusPhysics website. It was your requests, feedback, and encouragement that prompted the writing of this book. Following the release of RPE, reader response was tremendous, and your requests for a similar book extending beyond the scope of the NY Regents Curriculum that could be used in physics classrooms across the country as well as for standardized test preparation made the development of this book a personal necessity. Second, I must thank my two outstanding editors, Jeff Guercio and Joe Kunz, who graciously took many hours out of their busy lives to help make this book (and Regents Physics Essentials) clear, concise, and readable. I'd also like to thank my student Emily, who first proposed turning our course notes into a review book, and Andrew, who reinforced that you can do anything if you set your mind to it. I'd also like to thank Muse, whose enthusiasm for this book has been contagious. Last, but certainly not least, I'd like to thank all the teachers and professors who contributed to this endeavor. In attempting to write a physics book that would serve the needs of Honors Physics students across the country (and beyond), the input of these teachers and professors has been instrumental in tailoring this book to the needs of a majority of students, while at the same time keeping the length (and cost) low enough to remain attractive to its intended audience. I've enjoyed working on this project throughout the past two years, but as in any extended project, I'm breathing a sigh of relief to have reached the finish line (at least for now). I hope you find the APlusPhysics website and family of resources a useful tool in your study / instruction of physics, and I look forward to growing our online learning community in the coming years. Thank you, thank you, thank you, and best wishes on an amazing 2012!

But now at least you have it -- which is the first step to using it!!! I'm so proud... :star:

What happens when you point the Hubble Telescope at a section of "empty" space...

You can view the page at http://www.aplusphysics.com/forums/content.php?169-New-Book-Release-Honors-Physics-Essentials

[ATTACH=CONFIG]308[/ATTACH]Honors Physics Essentials is an easy-to-read guide to algebra-based introductory physics, featuring more than 500 worked-out problems with full solutions and covering topics such as: kinematics, dynamics, momentum, impulse, gravity, uniform circular motion, rotational kinematics, work, energy, power, electrostatics, circuits, magnetism, microelectronics, waves, sound, optics, thermal physics, fluids, and modern physics. This book is designed to assist beginning physics students in their high school and introductory college physics courses as an invaluable supplemental resource in class as well as a review guide for standardized physics assessments such as the SAT Subject Test in Physics, PRAXIS Physics, and CST Physics exams. Honors Physics Essentials is integrated with the APlusPhysics.com website, which includes online question and answer forums, videos, animations, and supplemental problems to help you master high school physics. Check it out at http://www.aplusphysics.com/honors.

Perhaps asking your instructor for assistance after school would be a good idea...

Excellent... we should study conservation of angular momentum... how do you feel about Wednesday?

To find the net torque, recall that torque is force multiplied by distance when applied at a right angle. You know the radius of the disk, and the force applied (mg for your hanging mass)... use that to find your moment of inertia.

I'm glad it went well and you thought that the book helped -- magnetism is one of the trickier topics in physics, and for many (myself included), you don't really "get it" the first or second time through. Random Sports Response: I can't wait to see the 49ers and Steelers match up on the 19th!!!

Nice analysis. Good luck tonight and take it easy on that knee!

Excellent. How can you apply this to air bags in cars?

I'd love to see how he'd do against pro soccer players in that goal. :beaten:

Test post for Skimwords which includes the term eBay. eBay should be turned into a Skimword.

Great analysis up to the conversion to mph... 279 in/sec is roughly 16 mph.

Excellent! Should have sent a video camera home with you!

Video highlights from the 2011 Irondequoit High School physics catapult competition.

In my previous career as a microelectronic engineer, we regularly worked with a gas known as silane (SiH4), a pyrophoric gas, which means it ignites spontaneously in air. Even better, for safety reasons they kept it outside the building in a bunker, which I had a great view of from my office window. :livid: It's fun to look at some of the safety precautions used when dealing with pyrophoric gases... double contained lines, shut-off valves, etc.

Truly outstanding!

A brief walk-through of retarding (drag) forces as an assist for AP-C physics students.

Our study of rotational kinematics and moment of inertia will play a big role in understanding the gymnast's rotations from a physics perspective. From a performance perspective, it looks like magic to me!

NOT uncommon at all. Physics takes time to sink it (that's why we try to end units and leave a few days for problem solving / practice / sink in before pulling it all together on an exam). I spent five years as an undergraduate learning how to make transistors, but didn't understand how one worked until I was a senior... some things just need to stew and sift for a while. :-)

nice... nothing says physics like blood and vomit on ice!

The following is an actual question given on a University of Washington chemistry midterm. The answer was so "profound" that the professor shared it with colleagues, which is why we now have the pleasure of enjoying it as well. Bonus Question: Is Hell exothermic (gives off heat) or endothermic (absorbs heat)? Most of the students wrote proofs of their beliefs using Boyle's Law, (gas cools off when it expands and heats up when it is compressed) or some variant. One student, however, wrote the following: First, we need to know how the mass of Hell is changing with time. So we need to know the rate at which souls are moving into Hell and the rate at which they are leaving. I think that we can safely assume that once a soul gets to Hell, it will not leave. Therefore, no souls are leaving. As for how many souls are entering Hell, let's look at the different religions that exist in the world today. Some of these religions state that if you are not a member of their religion, you will go to Hell. Since there are more than one of these religions, and since people do not belong to more than one religion, we can project that all souls go to Hell. With birth and death rates as they are, we can expect the number of souls in Hell to increase exponentially. Now, we look at the rate of change of the volume in Hell; because Boyle's Law states that in order for the temperature and pressure in Hell to stay the same, the volume of Hell has to expand as souls are added. This gives two possibilities: 1. If Hell is expanding at a slower rate than the rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all Hell breaks loose. 2. Of course, if Hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over. So which is it? If we accept the postulate given to me by Ms. Teresa Banyan during my Freshman year--"...that it will be a cold day in Hell before I sleep with you."--and take into account the fact that I still have not succeeded in having sexual relations with her, then #2 cannot be true; and thus I am sure that Hell is exothermic and will not freeze. THE STUDENT RECEIVED THE ONLY "A" GIVEN

The Official Unabashed Scientific Dictionary defines a transistor as a nun who's had a sex change.

The following is a little known, true story about Albert Einstein (attributed to Paul Harvey). Albert Einstein was just about finished his work on the theory of special relativity, when he decided to take a break and go on vacation to Mexico. So he hopped on a plane and headed to Acapulco. Each day, late in the afternoon, sporting dark sunglasses, he walked in the white Mexican sand and breathed in the fresh Pacific sea air. On the last day, he paused during his stroll to sit down on a bench and watch the Sun set. When the large orange ball was just disappearing, a last beam of light seemed to radiate toward him. The event brought him back to thinking about his physics work. "What symbol should I use for the speed of light?" he asked himself. The problem was that nearly every Greek letter had been taken for some other purpose. Just then, a beautiful Mexican woman passed by. Albert Einstein just had to say something to her. Almost out of desperation, he asked as he lowered his dark sunglasses, "Do you not zink zat zee speed of light is zery fast?" The woman smiled at Einstein (which, by the way, made his heart sink) and replied, "Si." And know you know the rest of the story.