Algebra

Find the number of decibels for the power of the sound given. Round to the nearest decibel.
A rocket engine,
2.68 cross product 10−5
watts/cm2

asked by Viola
  1. 2.68*10^-5 watts/cm^2 to dB
    You want Watts/m^2
    so multiply by 10^4
    2.68 * 10^-1 Watts/m^2

    definition of dB for sound:
    dB = 10 log (watts/m^2 intensity /10^-12)
    = 10 log (2.68*10^11)
    =10 [ log 2.68 + 11 ]
    = 10 [ 11.428 ] = 114 dB LOUD !!!!

    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.32 cross product 10−5 watts/cm2
  2. Algebra 2

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.64 cross product 10−5 watts/cm2
  3. math104

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.64 cross product 10−5 watts/cm2
  4. algebra

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
  5. algebra

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
  6. algebra

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine,2.44 cross 10^(−5)watts/cm2.
  7. algebra

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.54 cross 10−5 watts/cm2
  8. math

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.37 cross 10−5 watts/cm2
  9. math

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
  10. math

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.37 cross 10−5 ( to the 5th power) watts/cm2 ( cm squared)

More Similar Questions