coreen

Most popular questions and responses by coreen
  1. physics

    You are riding your bicycle directly away from a stationary source of sound and hear a frequency that is 2.5% lower than the emitted frequency. The speed of sound at the temperature that day is 339 m/s. What is your speed? f = f0(v + vo)/v. Here, vo is the

    asked on April 30, 2007
  2. physics

    Speakers A and B are vibrating in phase. They are directly facing each other, are 7.4 m apart, and are each playing a 72.0 Hz tone. The speed of sound is 343 m/s. On the line between the speakers there are three points where constructive interference

    asked on April 29, 2007
  3. Environmental science

    what is the difference between primary and secondary succession

    asked on November 23, 2008
  4. physics

    An organ pipe is open at both ends. It is producing sound at its sixth harmonic, the frequency of which is 257 Hz. The speed of sound is 343 m/s. What is the length of the pipe

    asked on May 1, 2007
  5. Physics

    Suppose the skin temperature of a naked person is 34 degree celsius when the person is standing inside a room whose temperature is 23 celsius. The skin area of the individual is 1.5m^2. (a) Assuming the emissivity is 0.80, find the net loss of radint power

    asked on April 13, 2007
  6. physics

    An organ pipe is open at both ends. It is producing sound at its sixth harmonic, the frequency of which is 257 Hz. The speed of sound is 343 m/s. What is the length of the pipe The open pipe has to be of length lambda/2, and odd number. Fundamental L=

    asked on May 1, 2007
  7. Environmental Science

    describes environmental benefits and challenges of urbanization. In your own words, include descriptions of two 1996 award winners, discussing how they overcame one of the challenges mentioned in your presentation.

    asked on December 3, 2008
  8. physics

    The fundamental frequency of a string fixed at both ends is 375 Hz. How long does it take for a wave to travel the length of this string? Please check my answer Solution: f=v/2L v=2Lf t=1/2f=l/v 1/2(375hz)= .0013 sec

    asked on May 1, 2007
  9. physics

    A spiral staircase winds up to the top of a tower in an old castle. To measure the height of the tower, a rope is attached to the top of the tower and hung down the center of the staircase. However, nothing is available with which to measure the length of

    asked on April 1, 2007
  10. eth 125

    What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences?

    asked on January 10, 2009
  11. Eth 125

    What do you believe is the future of Asian diversity in America?

    asked on January 9, 2009
  12. evironmental Science

    describes environmental benefits and challenges of urbanization.

    asked on December 2, 2008
  13. CULTURAL DIVERSITY

    Consider racial imbalances in education, the economy, family life, housing, criminal justice, health care, and politics. Of these societal challenges facing modern African Americans, which do you think are most difficult to overcome, and why?

    asked on November 30, 2008
  14. environmental science

    What is the greatest challenge of secondary succession

    asked on November 23, 2008
  15. eth 125

    a. What do these statistics reveal about Asian diversity in America? b. What do you believe is the future of Asian diversity in America? Cultural Makeup 13.1 million U.S. residents are Asian or Asian in combination with other races 943,000 estimated number

    asked on January 10, 2009
  16. Culture diversity

    describing the role civil disobedience played in the Civil Rights Movement.

    asked on December 1, 2008
  17. Environmental Science

    Explain the four factors that produce changes in population size. Which factors are affecting the population size? What do you predict will happen to the nutria population after all the land is depleted of the nutrias’ food resource?

    asked on November 29, 2008