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  1. garthenar

    Intensity and Interference Patterns (double slit)

    I'm not entirely sure. My professor said that I should use the equation (I_0)cos^2(Φ/2) with I_0 equaling the intensity at the origin of the two slit model. So I'm assuming that the 4(I_0) has something to do with the the intensity one slit would produce. We havent done single slits so I'll have...
  2. garthenar

    Intensity and Interference Patterns (double slit)

    Wait, I though the central max was at y =0. Where is the central max?
  3. garthenar

    Intensity and Interference Patterns (double slit)

    I'm still on part a. I think that i may have the wrong equation for intensity. I'm not sure I'm using the right numbers for the "first minimum". I started with getting the wavelength λ=(ax)/D since the first minimum occurs at m = 0.5 I multiplied the distance to the first minimum by 2 to get...
  4. garthenar

    Quartus II 18.1 (light version) -- problem getting functional simulation to work

    Sorry for the long wait time. Schools being chaotic since they're trying to figure out how to put everything online as a stop gap for the Corona Virus. Removing the "." did not work although I'm sure what you suggested will come in handy. I'm going to see if I can find a professor or Grad...
  5. garthenar

    Quartus II 18.1 (light version) -- problem getting functional simulation to work

    changed the location where the simulation is storing Lab4.vwf.vt to qsim/work and fixed it to the point where the simulation completes but now wont open the completed file automatically. I'm going to check and see if it opens manualy in a bit but the new screen is I can open Lab4.vwf.vt...
  6. garthenar

    Quartus II 18.1 (light version) -- problem getting functional simulation to work

    editide line 4 of the model sim script from vlog -work work Waveform.vwf.vt to vlog -work work Lab4.vwf.vt reduced the error to but it should be noted that the flow progress readout is way, way longer than it was. I don't know if I've gotten closer to getting this to work or if I've f'ed...
  7. garthenar

    Quartus II 18.1 (light version) -- problem getting functional simulation to work

    Homework Statement:: None. This is part of implementing a project and not an actual question. It's a technical problem or equipment failure. Relevant Equations:: The Code I get is; Error: (vlog-7) Failed to open design unit file "Waveform.vwf.vt" in read mode. [Mentor Note -- moved to the...
  8. garthenar

    Comp Sci Boolean simplification of a larger term?

    I notice that I forgot about the absorption law. Thank you. I knew it would be something obvious.
  9. garthenar

    Comp Sci Boolean simplification of a larger term?

    That it's redundant. But I need to know what laws cause it to be redundant. (In my class we're required to list the laws we use with each step.)
  10. garthenar

    Comp Sci Boolean simplification of a larger term?

    I was asked to use De Morgans law to find the complement of a particular equation, I applied the law correctly and simplified my solution down to A'B'CD'+CA+CB'+D'A+D'B' I ran the problem through a boolean simplifier to check my work...
  11. garthenar

    Engineering Designing an adjustable voltage source using only resistors and a pot

    I solved the problem after I got a little bit of sleep. I didn't fully understand how to wire the potentiometer but I got it figured out. Thank you for your help.
  12. garthenar

    Engineering Designing an adjustable voltage source using only resistors and a pot

    Thank you. It turns out I had the potentiometer wired wrong. It was my first time using one and I didn't realize that the resistance between the two inputs was the total value of the internal resistor. After some sleep I got my circuit working and I'm having a lot of fun with it.
  13. garthenar

    Engineering Designing an adjustable voltage source using only resistors and a pot

    Thank you. It turns out I had the potentiometer wired wrong. I figured out how to use it right after I checked the resistance between each leg. My circuit is working properly now and I'm having a great time with it.
  14. garthenar

    Engineering Designing an adjustable voltage source using only resistors and a pot

    The problem is that I need a single output that will range from -2 to +2 v. Unfortunately I don't know how to accomplish that with a single potentiometer. That's why I had that strange setup before. How do I combine the separate voltages into a single output?
  15. garthenar

    Engineering Designing an adjustable voltage source using only resistors and a pot

    I need to create a powersupply that takes in a +5 and -5v and has an adjustable output that varies between -2 and +2 v using one potentiometer. I already came up with a design myself but it did not work. I need some help figuring this out. I think my idea for how to get specific positive or...
  16. garthenar

    Current Through LR Circuits

    I'm going to be working on capacitors sometime tomorrow so you can expect a follow up on that. Thank you for all of your help.
  17. garthenar

    Current Through LR Circuits

    I know that the current in the circuit isn't going to change instantaneously as the inductor is going to resist any change to magnetic flux due to self induction...? If the current cant change instantaneously then voltage can't change instantaneously right? so an inductor resists rapid changes...
  18. garthenar

    Current Through LR Circuits

    It's not from the book its from our homework (I checked to see if there was a comparable problem before posting) We are using University Physics 14th edition by Young and Freedman and This homework corresponds to Chapter 30.
  19. garthenar

    Current Through LR Circuits

    is the equation I found in the book for the current through an LR-circuit. The problem is I cant find anything in the text I have that deals with resistors in series vs parallel, if a coil acts as a short, etc. So can I ask you... 1) is this equation valid for both resistors in parallel and...
  20. garthenar

    Power related to the EMF of an adjustable coil in a magnetic field

    Thank you, Once I realized that I would taking the derivative of (2[m/s])t in the Emf equation everything fell together.
  21. garthenar

    Power related to the EMF of an adjustable coil in a magnetic field

    Sleep deprivation. I'll see if I can fix it.
  22. garthenar

    Power related to the EMF of an adjustable coil in a magnetic field

    I'm already stuck on A. I'm hoping once I figure that out the rest will just fall into place but be prepared for this to take awhile. I understand how to use Faraday's law to get the current or voltage of the system based off the movement of the bar but I have no Idea how to relate the rate of...
  23. garthenar

    Solving for a neutralizing B0 in a Thomson Cathode Ray (Algebra?)

    This is unfortunate. I confirmed what you told me about the units but my answer is still wrong. I have double checked the values they gave me, adjusted the resolution of my constants (eg. the charge and mass of the electron) and even tried changing signs. My answer makes sense to me but is...
  24. garthenar

    Solving for a neutralizing B0 in a Thomson Cathode Ray (Algebra?)

    I've attached a picture from the problem, the given equations, and my work so far. I knew I had a problem when My units wouldn't check out. This should just be simple algebra but It's not working. Please help me to understand what I am doing wrong.
  25. garthenar

    Thomson Experement, Derive deltaY between E=0 and E=E0

    I checked the rules and, they mention that I can post my solution so I,LL go ahead and do that. Mods have mercy.
  26. garthenar

    Thomson Experement, Derive deltaY between E=0 and E=E0

    I had no idea I could do a velocity triangle. I'll try that later after I have the spare time. I did solve the problem by splitting the problem up into two stages. The first stage with a constant, positive acceleration and a second stage with a=0 and V0y = Vy from stage 1. After I get some rest...
  27. garthenar

    Thomson Experement, Derive deltaY between E=0 and E=E0

    some more thoughts.... Can I use my constant acceleration equations after the particle leaves the loop (F=0 so a=0) using my time d/V0 to calculate the vertical velocity of the particle as it leaves the E field and then calculate that as it moves over the remaining distance L over a time of, im...
  28. garthenar

    Thomson Experement, Derive deltaY between E=0 and E=E0

    Yes, then I tried using the angle of the triangle formed by the displacement where the electron emerges from the plates and the length of the plates (d) to calculate of the larger triangle of sides (delta y) and (d+L) but that aparently does not work. I know that the electron only experiences a...
  29. garthenar

    Thomson Experement, Derive deltaY between E=0 and E=E0

    There are more parts to this problem but I can't get to those until I finish this one. I have attached figure.1 and some my work so far, including my answer which the system rejected. (I had to copy my work from my original sheet as it contained sensitive information I didn't want to upload)...
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