<p>Have you guys heard of the book Problems in General Physics by IE Irodov?
It has an amazing collection of problems!</p>
<p>Yes, I co-authored that book. Thank you very much for the kind words.</p>
<p>Greenbat is attempting some humor. </p>
<p>I made it, but I don’t think it’s worth the effort to study for the semifinals.</p>
<p>And if anyone wants the Irodov book, it is a very good resource. I have the PDF of the book and solutions manual. </p>
<p>The list is official now! According to the AAPT website the cut off score is 12.5 </p>
<p>@Holocaust Adolf Hitler would be proud of your accomplishment. Keep fantasizing about holocausts dude.</p>
<p>@Holocaust lol nice username</p>
<p>I also have the Irodov. Many of its problems are truly at a different league. But sometimes I found them even too hard for the USAPho.</p>
<p>@tbradsworth, how are you doing? are you upset about not passing the f=ma?</p>
<p>@xiaorui Is this you? <a href=“Sherry Xiaorui Wang - Principal - SpringLight Education Institute | LinkedIn”>http://■■■■■■■■■■■■■■■■/pub/sherry-xiaorui-wang/14/b28/2a1</a></p>
<p>Son passed. Looking forward to semifinal exam. Hope he can do better in subjects other than mechanics.</p>
<p>And then, we realize that greenbat23 is from another country? possibly?</p>
<p>anyways, official list is out.</p>
<p>anyways, official answers are out</p>
<p><a href=“http://www.aapt.org/physicsteam/2014/upload/exam1-2014-2-2-answers.pdf”>http://www.aapt.org/physicsteam/2014/upload/exam1-2014-2-2-answers.pdf</a></p>
<p>And #19 is indeed a straight slanted line. @tbradsworth, could you elaborate on the ■■■■■■■ FUNDAMENTAL FLAW THAT MAJORIN MADE? Or simply come out of hiding and apologize! That would help too! :)</p>
<p>@ParentOfUtahBoy, and @greenbat23. Im talking about the helicopter dragging a rope problem. His solution was to model it like a ball dropped from a moving object, making a parabolic path as it moves down due to the horizontal velocity. I’m not sure how that takes the tensions from the string into account, but I believe him. </p>
<p>Anyways, once the AAPT opens for today, I’ll call them and see if I can find out anything more.</p>
<p>@ParentOfUtahBoy, and @greenbat23. Im talking about the helicopter dragging a rope problem. His solution was to model it like a ball dropped from a moving object, making a parabolic path as it moves down due to the horizontal velocity. I’m not sure how that takes the tensions from the string into account, but I believe him. </p>
<p>Anyways, once the AAPT opens for today, I’ll call them and see if I can find out anything more.</p>
<p>sciencechamp24: congrats on RSI acceptance. If you attend RSI your airtickets to MD will be wasted.</p>
<p>Hello @parentofutahboy. I don’t understand why his plane tickets to MD will be wasted. Do you think the sole purpose of attending the physics camp is to make IPhO? Perhaps some people enjoy the experience of physics camp, and don’t go blindly after a ridiculous goal to satisfy their unappeasable pride, which apparently is the only reason people like you participate in competitions. Am I wrong? If I am, I profusely apologize and retract my statement. But I’d love if you could elaborate.</p>
<p>@ParentOfUtahBoy What is your son’s name. I’d love to meet someone from Utah that is of male gender. </p>
<p>Do you need to be a citizen to be in Usapho camp?</p>
<p>@sciencechamp24 was accepted by RSI and he booked air ticket to MD physics camp. He cannot attend both programs because of time and location conflict.
@greenbat23: For my son, the purpose for attending a camp is mainly for future college application, which will lead to other good thing like ideal (and enjoyable) job etc. Enjoyment and pride? Maybe. What is wrong about them?</p>