Jump to content

FizziksGuy

Administrators
  • Content Count

    2,754
  • Joined

  • Last visited

  • Days Won

    47

Everything posted by FizziksGuy

  1. I sent the WebAssign folks this blog post. Haven't heard anything back to date...
  2. Great job finding applications of physics concepts to the wider world!
  3. I'm still trying to figure out why, if they could take out the death star with the ramming/light speed maneuver, wouldn't you have done that with the FIRST ship to run out of fuel?
  4. You're more than halfway there... keep up the good work!
  5. Hi SamDiab. What have you done so far to get started in this problem? If it has you stumped so far, I'd recommend listing what is given, what you're asked to find, and then looking for potential relationships between the two. For example: m=1.2 kg h=1.4 m t=8 hrs = 28,880 s P= 0.50 hp = 37.28 W Find: mass lifted (then you can divide by 1.2 kg/brick to get number of bricks)
  6. I agree... would be much more exciting if it actually dropped in free fall!
  7. Wow, we're in agreement on something!!! I think Dr. Tyson does some wonderful things, but also believe there's further opportunity for respecting and leaving room for the thoughts of others. Which I imagine he does internally, though at times his external image seems to cling more strongly to the black-and-white (which is part of being an entertainer).
  8. Close, but as the angle in radians approaches zero, cosine of the angle won't approach zero... it should approach 1.
  9. Name: Brainiac - Electric Fence Category: Electricity & Magnetism Date Added: 2017-12-18 Submitter: FizziksGuy Electric Fence Experiment Richard Hammond shows the Brainiacs how fun Electricity can be. Also, yes, if you are in the air when the electricity goes through, you don't get a shock. You don't get shocked if the circuit (box to fence to person to ground to box) doesn't complete. On top of that, the end where he ALMOST shakes Hammond's hand, he doesn't. Also, the slight gap in time between feet hitting ground and the shock can be attributed to the 1-2 second delay caused by the fence not being constantly on. Brainiac - Electric Fence
  10. Electric Fence Experiment Richard Hammond shows the Brainiacs how fun Electricity can be. Also, yes, if you are in the air when the electricity goes through, you don't get a shock. You don't get shocked if the circuit (box to fence to person to ground to box) doesn't complete. On top of that, the end where he ALMOST shakes Hammond's hand, he doesn't. Also, the slight gap in time between feet hitting ground and the shock can be attributed to the 1-2 second delay caused by the fence not being constantly on.
  11. The concept of moment of inertia is demonstrated by rolling a series of cylinders down an inclined plane. Visit physicsworld.com for more videos, webinars and podcasts. http://physicsworld.com/cws/channel/m...
  12. Name: Walter Lewin Demonstrates Moment of Inertia Category: Rotation Date Added: 2017-12-05 Submitter: FizziksGuy The concept of moment of inertia is demonstrated by rolling a series of cylinders down an inclined plane. Visit physicsworld.com for more videos, webinars and podcasts. http://physicsworld.com/cws/channel/m... Walter Lewin Demonstrates Moment of Inertia
  13. View File SimuLAB: Motion in a Circle Interactive simulation lab activity where students explore quantities describing circular motion. Submitter FizziksGuy Submitted 11/30/2017 Category UCM & Gravity  
  14. Version 1.0.0

    44 downloads

    Interactive simulation lab activity where students explore quantities describing circular motion.

    Free

  15. View File SimuLAB: Universal Gravitation APlusPhysics Simulation Interactive simulation to explore the basic relationships in Newton's Law of Universal Gravitation using Geogebra. Submitter FizziksGuy Submitted 11/29/2017 Category UCM & Gravity  
  16. Version 1.0.0

    28 downloads

    Interactive simulation to explore the basic relationships in Newton's Law of Universal Gravitation using Geogebra.

    Free

  17. View File SimuLAB: Coulomb's Law APlusPhysics Simulation Lab handout to accompany the APlusPhysics Coulomb's Law mini-lab simulation activity. Submitter FizziksGuy Submitted 11/29/2017 Category Electricity  
  18. Version 1.0.0

    24 downloads

    Lab handout to accompany the APlusPhysics Coulomb's Law mini-lab simulation activity.

    Free

  19. Draw separate free body diagrams for each of the objects, showing the direction of the forces on each object. For example, for the (2m) mass, you would have a dot with an arrow to the left (T3), and an arrow to the right (T2). The up and down arrows (forces Fn up and mg down) are balanced, so we'll focus on the x-direction. Writing Newton's 2nd Law in the x-direction, since T2 is in the positive direction, we'll leave it as positive, and since T3 is in the -x direction, it will be negative. Therefore T2-T3 = (2m)a.
  20. And THIS is why I avoid New York City...
  21. Fantastic blog post, and a great start on understanding some of the conceptual ideas around time dilation!
  22. Full contact billiards... cool!

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

×
×
  • Create New...