Recent content by CherryXBOMB

  1. C

    Comparing the Heights of Water and Gasoline Columns in an Open U-Tube

    Homework Statement In an open U-tube, the pressure of a water column on one side is balanced by the pressure of a column of gasoline on the other side. (a) Compared to the height of the water column, the gasoline column will have (1) a higher, (2) a lower, or (3) the same height. Why? (b) If...
  2. C

    How Loud is a Rock Band in Terms of Power Output?

    Total Power output Sound! All right, nevermind, problem resumed. . A rock band has an average intensity level of 110 dB at a distance of 15 m from the speakers. Assuming the sound is radiated equally over a hemisphere in front of the band, what is the total power output? Relevant...
  3. C

    I must be wrong, instantaneous speed-Conceptual ?

    Oh and just in addition: we specifically addressed this issue in discussion and she said using "not enough information" was a completely legitimate answer...I just don't understand how it could be wrong.
  4. C

    I must be wrong, instantaneous speed-Conceptual ?

    Homework Statement Before charging into my physics teachers office to demand an explanation for my being correct and yet being marked wrong I figured I should try to back up my argument. Kim takes a trip leaving at noon and arriving at 4 pm. Here is the breakdown of her trip: 18 m/s for 3/4...