Recent content by key

  1. K

    What Are Some Challenging Physics Mechanics Questions?

    could you please tell me the ones i got wrong i will show you my work for those thanks
  2. K

    What Are Some Challenging Physics Mechanics Questions?

    Hi can i please get some help with these questions 1.A sphere of mass M, radius r, and rotational inertia I is released from rest at the top of an inclined plane of height h If the plane is frictionless, what is the speed vcm, of the center of mass of the sphere at the bottom of the...
  3. K

    What Are the Correct Answers to These Physics Multiple Choice Questions?

    Hi can someone please help me with these multiple choice questions A sphere of mass M, radius r, and rotational inertia I is released from rest at the top of an inclined plane of height h as shown above. 1. If the plane is frictionless, what is the speed vcm, of the center of mass of...
  4. K

    Need Help with 2004 AP Physics C Mechanics Section Answers?

    Hi i have the 2004 ap physics c multiple choice exam but I do not have the answers for the mechanics section. I would be willing to trade a lot of exams just for the answers to the mechanics section. thank you
  5. K

    Equilibrium Help: Solving for Tangential Speed in a Rolling Wheel Problem

    A wheel of diameter 0.700 meters rolls without slipping. A point on the top of the wheel moves with a tangential speed of 2.00 m/s with respect to the ground. 1. If the wheel suddenly stops spinning and skis along the ground then a. v=rω b. v>rω c. v<rω thank you
  6. K

    Calculating Forces on a Uniform Platform in Equilibrium: Physics Problem

    I got 21.25 for F left and -73.75 for F right. Is that right?
  7. K

    Calculating Forces on a Uniform Platform in Equilibrium: Physics Problem

    a person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post on the left end...
  8. K

    Design a mechanism which knocks over can

    i figured it out thanks
  9. K

    Design a mechanism which knocks over can

    sorry but i am trying hard and like i said before all my ideas have been taken in my class so i can not use them
  10. K

    Design a mechanism which knocks over can

    sorry but I still don't know what to do
  11. K

    Design a mechanism which knocks over can

    the can has to be upward you can not turn upside down
  12. K

    Design a mechanism which knocks over can

    sorry you can make holes inside the can or the lid for the trigger
  13. K

    Design a mechanism which knocks over can

    i am sorry but i really don't know please please help and the can top has to be closed
  14. K

    Design a mechanism which knocks over can

    i am sorry but is there anything that does not involve fire Also how would i set up the fuse and balloon
  15. K

    Design a mechanism which knocks over can

    no see the ideas i had were the same as others and only one person can use an idea there are no limits on technology
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