Most popular questions and responses by Maka
  1. physic

    The windpipe of one typical whooping crane is 5.3 feet long. What is the fundamental resonant frequency of the bird's trachea, modeled as a narrow pipe closed at one end? (Assume a temperature of 35°C.) Hz Need Help? Read It

    asked on November 29, 2014
  2. physics

    A solid copper object hangs at the bottom of a steel wire of negligible mass. The top end of the wire is fixed. When the wire is struck, it emits a sound with a fundamental frequency of 135 Hz. The copper object is then submerged in water so that half its

    asked on November 29, 2014
  3. Algebra investment

    An investor had a total of 25,000 put into a portfolio of stocks, bonds, and mutual funds. In one year, he earned 8% on the stock investment, 10% on the bond investment and 6% on the mutual funds investment. The annual(simple interest) return was $1860. if

    asked on April 6, 2011
  1. Minimum Concentrations - Urgent help!

    8.0×10−2 M CaI2;K2SO4

    posted on July 31, 2017
  2. Chemistry


    posted on August 27, 2016
  3. Physics


    posted on December 2, 2015