Phyiscs Definition and 63 Threads

In mathematics, the commutator gives an indication of the extent to which a certain binary operation fails to be commutative. There are different definitions used in group theory and ring theory.

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  1. K

    Phyiscs or mech eng better suited for energy study

    I am currently a physics math major with a strong interest in solar energy. I am early enough in my degree to switch majors. My intention is to pursue graduate study but I want to make sure I am on the right track. I wanted to know what was a better fit for career researching and working...
  2. M

    Where Can I Find Old AP Physics Multiple Choice Questions?

    Does anyone have a link or multiple choice questions for old AP physics B or C?
  3. K

    And, at the moment, I cannot answer your question.

    Homework Statement 3. A 3.0 kg block starts from rest at the top of a 30 degree incline and accelerates uniformly down the incline, moving 2.0 m in 1.5s. a. find the magnitude of the acceleration of the block b. find the coefficient of kinetic friction between the block and the incline c...
  4. S

    Finding work with a phyiscs bachelor in the US

    I know that over here it's not very common to quit school after receiving your bachelor and not continue for your master's degree, so your chances of finding suitable work with only a bachelor's degree are slim. What's it like in the US? I heard just having a bachelor's degree there is pretty...
  5. T

    How can I prepare for my first year of physics in 11th grade?

    im taking physics for the first time next year.(ill be in 11th grade.)can anyone suggest things to read or try or anything? and suggestions would be appreciated.:smile:
  6. M

    The Phyiscs of Air Hockey - Lifting up the puck

    I have this crazy idea to make an air hockey table out of some junk laying around the basement. Before I waste my time messing around with an old table and vacuum I figured I would brush up on my basic physics to figure some stuff out. Lets say we want to lift up a lightweight hockey puck...
  7. S

    Using waves in high school phyiscs, im looking for a proper tutorial.

    I'm having a great deal of trouble finding resources for high school level wave tutorials, every tutorial i come across is either poorly made or more into physics 12 or first year university stuff. If anyone could link me a site or article it would be much appreciated...
  8. I

    Programs Should You Pursue a Physics PhD? Advice from Brian Schwartz

    Dont Do Phd In Phyiscs! http://www.phys.psu.edu/~endwar/jobs/schwartz.html Brian Schwartz (Brooklyn College and American Physical Society) "Is There Life After the Physics PhD?" Physics Colloquium, Oct. 10, 1996, 3:30 PM, 101 Osmond. and some associated meetings. [Removed rest of text the...
  9. F

    Size of your undergrad phyiscs department

    Just curious what the number of students in other people's undergrad physics departments have been.
  10. Q

    Programs Computational Simulations and a Phyiscs Phd

    I will be applying to graduate school this coming winter, and I'm having difficulty deciding what field I should be directing my effort towards. My background: I have a bachelor's a physics, and my senior project was to write an N-body program that simulated galaxy collisions with the inclusion...
  11. B

    Calculating Electric Field Energy in Hydrogen Bohr Atom | 1.00e-15 Radius

    Cannot Figure This Out? How would I calculate the total electric field energy assuming that an electron and a proton have a radius of 1.00e-15 "This is a hydrogen Bohr Atom as well"
  12. A

    Calculating Speed of Human Eye Lens: f-stop = 4

    A human eyeball is about 2 cm long and the pupil has a maximum diameter of about 5 mm. What is the speed of this lens? f-stop = 2 cm / .5 cm f-stop = 4 is this it? I'm not sure if I found the right formula in my book thanks
  13. T

    What is the role of computers in the field of physics?

    [SOLVED] Computational Phyiscs Can anyone tell me what computational physics is all about? I'm "into" computers in general and was planning on doing a computer science degree until my interest in physics turned me away from it. The idea of a career that includes both computers and physics would...
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