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  4. FizziksGuy

    3.43Q

    Exactly .7 seconds after the ball is released, you don't (yet) know how far it has fallen. You could solve for the displacement of the ball after 0.7 seconds, however. If, instead, the problem had asked "how fast is the ball traveling the instant before it hits the ground," in that case you would use 4.0 meters as the displacement, but you would not know t (elapsed time).
  5. Vienna

    3.43Q

    How come the displacement of the ball won’t be 4m?
  6. The Victor Central School District in Victor, NY (a suburb of Rochester) is looking for a full-time physics teacher. Details in the link. https://www.applitrack.com/victorschools/onlineapp/default.aspx?Category=High+School+Teaching&AppliTrackJobId=1525&AppliTrackLayoutMode=detail&AppliTrackViewPosting=1
  7. Hi RegentsScholar06. All of the content is still on the site, just in different places (in the Worksheets sections as well as the Community section, which wasn't available when the first book was published), and all of the videos are still available on the site, just not in Flash format, but more modern streaming formats (and also through YouTube). Unfortunately I don't see as I'll have time to perform such a significant upgrade on the site in the near future to convert the manually-developed Flash content into HTML5, an extremely significant undertaking. All the Best, Dan
  8. anybody else love these classic forum emoticons? They’re so corny yet I love them anyways. anyways, I was wondering. What’s your favorite feature of this site? Mine is the badge system, a bit generic but I love it nonetheless. My hope is to collect all the badges one day.
  9. Forever now solidified with the invention of the Gauss Rifle, which I anticipate will soon lead to magnetic food delivery systems. Don’t quote me on this.
  10. Hello all, you’re in for a treat with the first blog post in *checks notes* FIVE YEARS? Well, I suppose this will be relevant enough. I’ve discovered the site through my physics regents review book, and the big day is soon upon me: tomorrow, in fact, is my Physics regents. I hope I do well! I realize it isn’t a Monday, but I felt inclined to share. have a great day to you all, and enjoy this meme.
  11. This is Breaking Bad tier dialogue in the best possible way.
  12. I think you’re right, though I would need access to the Empire State Building and a cadaver to conduct such an experiment. I’m trying to decide what would be harder to get.
  13. I’ve noticed much of the online connectivity promised in my Regents Physics book is unsupported nowadays due to Flash being discontinued. Is there any chance of this ever being fixed?
  14. How could a pen fall vertically without fins for directional control? It would start tumbling like the proverbial penny.
  15. Just my two cents. I think, some will go to the ground too, since most of the weight will "evaporate", i.e. burn, support structure will bounce back to where it was before the weight was placed on it. But yes most of it will fly away with the molecules, you can think of a dry ice put on a trampoline, trampoline will depress, those heavy pellets disintegrate turn into small peaces - CO2 gas molecules - and fly away and take bits of the potential energy with them and trampoline will straighten out.
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