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  13. 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)
  14. AnitaMorton
    How do you calculate magnitude of acceleration of a cart during the time interval t=0 second to t=0.30 second? (#7 on p 18 of workbook)
  15. Xavier
    Sorry BrandyBoy72 ... but you got your circumference and area formulae mixed up! Circumference of a circle = 2πr not 2πr2 !! Area of a circle = πr2 Xavier June 2021
  16. nookrealestate
    nookrealestate changed their profile photo
  17. FizziksGuy
    Welcome to APlusPhysics Carolyn!
  18. cmpbllcarolyn
    Hello everybody! I'm Carolyn. I am glad to join you for the knowledge of the great science of physics! Carolyn time tracking software
  19. FizziksGuy
    Welcome Bala!
  20. FizziksGuy
    Might also consider this recent site, Strategic Option Investing.
  21. angela
    angela changed their profile photo
  22. maya

    Physics of Running

    maya commented on evan's blog entry in Evan Plattens blog

    "When the body uses the calories it has consumed, it is not very efficient at conserving this energy. As the leg muscles contract to propel the runner forward, about 75% of the chemical energy that the runner has consumed is lost due to the heat (thermal energy) that the body gives off as it converts it stores (potential) chemical energy into kinetic energy." Could you please tell me where you have sourced, or if this is a primary source, this statistic from. Thank you.
  23. Bala Govindaraju
    This is Bala! Great to join the Physics world! Catch up with you all😀
  24. Omoutreach
    I would like to let the sports bloggers know about a new blog -SchmelkeCue.blog Thanks Om
  25. Mookster70
    Actually Youwrong, you’re wrong. His quote when coating the sled is, “it’s a new non-caloric silicone-based kitchen lubricant.” The cereal varnish is something Clark was working on, that his boss asked him for details to include in a speech. Two different items. And your “requires a very easy and quick search...” tone sucks too, especially when (living up to your username) you’re wrong.
  26. RonaldJonesbad
    Best Badminton Sets Reviews And Guideline For all badminton lovers.
  27. ElijahKatzenell
    1) For 5.20, why’s c a correct answer? 2) Can someone please explain the answer for 5.33? I got 1, but the book says 3 is the correct answer.
  28. Youwrong
    this is wrong. It is not a kitchen lubricant but rather "cereal varnish" his company makes to keep milk from entering cereal. requires a very easy and quick google search to get the proper information. facepalm
  29. 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).
  30. TerryBrantley
    Where can i find the solution to this lab?
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