Recent content by JKaufinger

  1. J

    Solving for x in y = (x+4)/(x+3): Is it Possible?

    Wow... I can't believe that it was a simple 2 steps from there. I just seem to have a problem with solving for x when it is in a numerator and denominator (I had another problem like this and someone else had to figure it out for me) lol thanks
  2. J

    Solving for x in y = (x+4)/(x+3): Is it Possible?

    Homework Statement How would you solve for x in y = (x+4)/(x+3) Homework Equations The Attempt at a Solution y(x+3) = (x+4) xy+3y=x+4 -x+xy+3y=4 x-xy-3y=-4 ... That is the closest to anything familiar I could come. This isn't really a homework question but how would you...
  3. J

    What is the Exponential Inverse for Identity Element 1?

    Let me explain why I think log and root don't work for this, but first let me reiterate some things: In addition and multiplication, the inverses have this property: When they are added (or multiplied) to the original, non-inverted number, they equal the identity element (0 and 1 respectively)...
  4. J

    What is the Exponential Inverse for Identity Element 1?

    Oh and let me also add that taking a higher operation, and applying the negative, will result in the lower operation's inverse. x * -1 = the additive inverse = -x x ^ -1 = the multiplicative inverse = 1/x So to find the exponential inverse, then that would be the negative tetration (the...
  5. J

    What is the Exponential Inverse for Identity Element 1?

    What is the exponential inverse? And first let me explain what I mean when I am talking about inverse. I am not talking about anything where f(f-1(x)) = x What I mean is in one operation, when that operation is applied onto the inverse of that operation it equals the identity element of...
  6. J

    Is Motion Absolute or Relative in Different Frames of Reference?

    I keep hearing how motion only exists relative to something else. But what if there is some object in space, and it is the only object in the universe. It has some kind of propulsion system, and it activates it, goes to a certain speed, then stops accelerating. Is that object really moving, or...
  7. J

    How Does the Speed of Light Remain Constant in a Moving Spacecraft?

    I know there is an answer to this somewhere, so please forgive me for not being able to see it :) When people say that light will always be measured at a constant speed, no matter where you are, what do they mean? Say we are in a spaceship which is standing still. Inside the spaceship, we...
  8. J

    Wave-particle duality and electromagnetic waves

    I always pictured the wave nature as the "main" feature of EM radiation (since it is just propagating fields, it seems much more like a wave), and the particle nature as the "main" feature of particles with rest mass. Am I just asking unanswered questions? Am I correct in thinking that they...
  9. J

    Wave-particle duality and electromagnetic waves

    But you see, I understand EM radiation. The problem I have is with the definition of other matter as waves. Scientists have created diffraction on electrons and neutrons, so I'll use those as an example. For example, what defines the "frequency" of the electron? Same goes for neutrons. What is...
  10. J

    Wave-particle duality and electromagnetic waves

    Hey everybody thanks for answering my questions. I have a few comments to make: So if I am getting this straight, then according to wave-particle duality, matter has properties of particles and of waves. My confusion is in the fact of what the wave components are made of? If we can think of...
  11. J

    Wave-particle duality and electromagnetic waves

    I have three points: 1. According to wave-particle duality, even regular matter can be classified as a wave instead of a particle, for example, an electron or a neutron. My question is, what is this a wave of? A photon is a wave of oscillating electric and magnetic fields. Are electrons, say...
  12. J

    Electric and magnetic fields experiment

    I have a simple question here that I seem not to be able to figure out. If you have a regular bar magnet, it emits a magnetic field around it. So, if you create an experiment and found out how far that field reached, you would see that the field doesn't go very far. Maybe like 3 inches (~...
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