Recent content by cuttooth

  1. C

    Finding angular velocity based on x vs t graph

    Homework Statement I am given the attached graph (excuse my abysmal homemade graph!). On the y-axis, I presume that it is displacement (x). The x-axis is time. This graph looks like SHM, but I could be wrong! The graph rises from 0 to 2 every 2 seconds, and drops back to 0 on the y-axis...
  2. C

    Do Two Glued Metal Bars Bend Identically Due to Identical Thermal Coefficients?

    Homework Statement There is a picture of two metal bars that are glued together of equal length (doesn't specify the type of metals). At 0 degrees C, they are not bent. At 20 degrees C, they are both equally bent (still attached together, bent the same way). Do they have the same or...
  3. C

    How to Calculate the Nernst Potential for a Lead Storage Battery?

    Homework Statement For the lead storage battery the overall reaction is: Pb(solid) + PbO2(solid) + 2H+ + 2HSO4- --> 2PbSO4(solid) + 2H2O(liq.) for which standard potential, E°, is 2.04 volts. Calculate E for this battery when the concentration of H2SO4 is 8.1 M, that is both H+ and HSO4- = 8.1...