Recent content by Pepsi24chevy

  1. P

    Help with a vehicle roll problem

    I thought something about that, but I don't have a radius. The professor did make up this problem, so maybe he forgot to tell us all the info.
  2. P

    Help with a vehicle roll problem

    I want to calculate the roll of a car going around a turn that is bank 24 degrees at a velocity of 160mph and a track width of 50 inches. TO be honest I am not sure where to start with the data I am given. It would seem to be a simple dynamics problem
  3. P

    Determine the energy required to accelerate a car

    ok thanks, I got it now. I wasn't clearly thinkin about how the 40 factors in.
  4. P

    Determine the energy required to accelerate a car

    So i got 1/2*1300[(60000/2600)^2-(10000/3600)^2]*((1kJ/kg)/(1000m^2/s^2)) for the change in the kinetic energy. I still don't see where the vertical rise of 40m comes into play...
  5. P

    Determine the energy required to accelerate a car

    energy problem... I got a problem that goes likethis: Determine the energy required to accelerate a 1300 kg car from 10 to 60km/h on an uphill road with a vertical rise of 40m. Ok i know that work is the itegral of force which is ma. But what about this vertical rise of 40m? Does this...
  6. P

    Minimum Uncertainty of Electron's Momentum

    well the answer should be in kg*m/s that's why i feel i am missing something, but its probably just a conversion or something?
  7. P

    Minimum Uncertainty of Electron's Momentum

    am i missing some or would it be 1.05e-34J/10e-10?
  8. P

    Minimum Uncertainty of Electron's Momentum

    In an atom, an electron is confined to a space of roughly 10^-10 meters. If we take this to be the uncertainty in the electron's position, what is the minimum uncertainty in its momentum? delta(x)delta(p)>h (this is how it was derived in the previous parts to the problem) Ok so i know px...
  9. P

    Velocity and frame of reference question

    Hey I am just lookin for some guidance here of what equations to use for this problem. My teacher gave us likea hint, but the hints are from the book used in the previous course and since i am a transfer stuident, i do not have this book. Anyway the question goes as followed... You are...
  10. P

    2 internal reflection questions

    so for the second one, i am going to get a triangle with a base of 2.8 and a angle of 27 degrees. So I do tan(27)*2.8 and the H of the triangle? I am sure i am probably just setting this up wrong, but I dont' know.
  11. P

    2 internal reflection questions

    One of my problems reads, 1. Determine the maximum angle for which the light rays incident on the end of the pipe in Figure P35.38 are subject to total internal reflection along the walls of the pipe. Assume that the pipe has an index of refraction of 1.40 and the outside medium is air...
  12. P

    Calculating Radiation Pressure Needed to Balance Sun's Gravity

    Ok, i got a problem that reads as followed. Suppose that a perfectly reflecting circular mirror is initially at rest a distance R away from the sun and is oriented so that the solar radiation is incident upon, and perpendicular to, the plane of the mirror. What is the critical value of...
  13. P

    Calculate Amplitude of EMF Induced by Radio Station

    Sry, i think i put this in the wrong forum last time. Here is the problem i have been working on. An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3.20 kW. A dipole receiving antenna 70.0 cm long is at a location 4.00 miles from the...
  14. P

    Resistance of a light bulb question

    no but thanks for the link. I think that should of helped me get an idea
  15. P

    How Do You Solve Complex Electrical Circuit Problems?

    well for 1, i gto Vmax =sqrt2 *120. Then i used I max = (Vmax/wL) a then i substitued into i(t) = imaxsin wt then i did Ul= 1/2Li^2 and i got .005 but i am pretty sure this isn't correct. for 2 i did Xc= 1/(5e-6*60*2pi) then i did 120/530 and got .226 but I don't believe that is correct...