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FizziksGuy

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Everything posted by FizziksGuy

  1. FizziksGuy
    Use your kinematic equations. Start by writing what you know (initial velocity is 0, time is 0.3 seconds, and distance traveled can be measured from the drawing). Once you know three things, you can use your kinematic equations to solve for the other two (details here: https://www.aplusphysics.com/courses/regents/videos/KinEqns_Reg/KinEqns_Reg.html)
  2. FizziksGuy
    Welcome to APlusPhysics Carolyn!
  3. FizziksGuy
    Welcome Bala!
  4. FizziksGuy
    Might also consider this recent site, Strategic Option Investing.
  5. FizziksGuy
    Hi Terry -- based on popular request of instructors I don't give out the solutions to the lab, leaving it to instructors to formulate their solutions (otherwise it becomes a much less effective tool for classroom teachers as students could just copy the answers).
  6. FizziksGuy
    That's an initial velocity from a jump. Usain Bolt is looking at his whole body running where 12.27 m/s is a sustained speed.
  7. FizziksGuy
    Right, but it's ultimately a proof of 1 vs. 1, not an empirical derivation of g. You're proving something is itself if you use theoretical values.
  8. FizziksGuy
    Graphing the empirical k_delta_x vs. Msintheta would work, but not the theoretical. They want you to determine an empirical value for g, not do a mathematical exercise that results in a 1=1 proof.
  9. FizziksGuy
    See here:
  10. FizziksGuy
    I might start with a resource like this: https://opentextbc.ca/physicstestbook2/chapter/damped-harmonic-motion/ or this: https://www.toppr.com/guides/physics/oscillations/damped-simple-harmonic-motion/
  11. FizziksGuy
    Hi Muskkan. Damped oscillators are outside the scope of AP Physics 1/2, but happy to help if I can. How far have you gotten so far / where are you getting stuck?
  12. FizziksGuy
    The one about the ice skater? Can you be more specific?
  13. FizziksGuy
    Absolutely... want you to be 100% satisfied with your purchase. Refund complete.
  14. FizziksGuy
    Correct. When you purchase the book it specifically says it cannot be printed (part of the licensing deal with publishers). However, all of the question sets are available to print individually at https://www.aplusphysics.com/courses/regents/worksheets/ws_index.html.
  15. FizziksGuy
  16. FizziksGuy
    Hi ertugrultiyek. Sounds like a solid question. What have you tried so far?
  17. FizziksGuy
    Hi Myua, It's in the download section -- the previous "buy" button turns to a "download" button after you complete the purchase. To save you the trouble, however, I also e-mailed you the file.
  18. FizziksGuy
    Connecting to ground provides an infinite supply of electrons (or can be an infinite sink of electrons). If you ground a metal rod, and hold a negative rod near an end, negative charges will be repelled from the rod into the ground. If you then disconnect the rod from the ground, no charges can enter or leave the rod, so you're left with a net positive charge on the rod.
  19. FizziksGuy
    Page 78 in the book talks about charging by induction. This section should help you out. It doesn't matter which part of the metal rod is grounded, since it's a conductor.
  20. FizziksGuy
    All the best to you and yours as well! Merry Christmas!
  21. FizziksGuy
    I would think the final pressure would be atmospheric... 🙂
  22. FizziksGuy
    Hi Robin, and welcome! Your book is available in the Community --> Downloads section (from the same page where you purchase), but I've also e-mailed a copy to you for convenience. Thanks for the support!
  23. FizziksGuy
    I don't think anyone has ever gotten this far before. Kudos, WUV Our Work!!! 😎
  24. FizziksGuy
    Fantastic Kerbal season!
  25. FizziksGuy
    Terrestrial exploration accomplished!

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