Recent content by NeedsHelp1212

  1. N

    Why is Physics So Hard? Advice to Improve

    last day of school today! I'm not sure what my final grade is until report cards are mailed out but I am hoping i somehow got to an A+ for the year. The final exam was surprisingly easy and i feel i aced it. The bad news is AP physics will most likely not be available in my school next...
  2. N

    How much energy can a solar panel collect in one hour?

    i was thinking about P= E/S. The intensity is power/area. So 1400/600= 2.33. But how do we relate this intensity to E/S (s being 3600 seconds).
  3. N

    How much energy can a solar panel collect in one hour?

    Homework Statement The average intensity of sunlight at the top of the Earth's atmosphere is about 1400 W/m^2. What is the maximum energy that a 20 m × 30 m solar panel could collect in one hour in this sunlight? Homework Equations Not sure what equation to use The Attempt...
  4. N

    What orientation will give the minimum mutual inductance?

    If its perpendicular, then cos 90= 0, so you would get a minimum. And when it's parallel cos 0= 1 so you get a maximum? I got this from looking at the magnetic flux which is proportional the mutual inductance if everything else is kept constant.
  5. N

    What orientation will give the minimum mutual inductance?

    my book does not say how the mutual inductance is calculated. I read online that you simply add then up if they are connected in series.
  6. N

    Test Tommorrow, Electric Fields

    what corner has the 45 micro charge.
  7. N

    Test Tommorrow, Electric Fields

    So the distance from the center to each corner is .371. I found the diagonal then divided by 2. ***Please help with my mutual inductance question!
  8. N

    Test Tommorrow, Electric Fields

    the test charge is assumed to be positive so its actually attracted to negative charges and repelled from positive charges. At least that is what my book says and what I learned. And do you have the length for one side of the square or I guess you can just make up a value? Because to find the...
  9. N

    What orientation will give the minimum mutual inductance?

    Homework Statement Suppose a fixed distance separates the centers of two circular loops. What relative orientation of the loops will give the maximum mutual inductance? What orientation will give the minimum mutual inductance? Homework Equations none The Attempt at a Solution...
  10. N

    Why is Physics So Hard? Advice to Improve

    What is up everyone! I finished with an A+ in the 3rd marking period and just got 1 more marking period to go. But i actually decided to take ap physics next year as a senior. This is crazy, at the beginning of the year I HATED PHYSICS and was horrible at it, but now i actually like physics and...
  11. N

    What is the vacuum wavelength of the incident light in nm?

    He went over it all, thank you for the help as well! I get it now
  12. N

    Calculating masses of 2 objects pushing off of one another

    (136 kg) * 0 m/s = m1 (1.2 m/s) + m2 ( -.9 m/s) 0 = 1.2m + -.9 m Keep in mind they are separate variables You also have m1 + m2 = 136. So put those equations on top of each other and i like to use elimination. Here is the work: 1.2m -.9 m = 0 -1.2(m1 + m2 = 136)...
  13. N

    What is the vacuum wavelength of the incident light in nm?

    Homework Statement When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of reflected light is observed is 296 nm. What is the vacuum wavelength of the light in nm...
  14. N

    Why is Physics So Hard? Advice to Improve

    As of this point no, but i remember looking ahead in the book and i definitely saw stuff about optics
  15. N

    Why is Physics So Hard? Advice to Improve

    got a 94:) Highest grade in my period :)
Back
Top