- #1
DEWANA
- 14
- 0
Hi guys I hope U can help me with this calculation...
Im very bad in Physics...I have no Idea how to caluculate this equation
And I don't no how to start...please helppp mee...It help me very much to see how you calculate it THANK YOU VERY MUCH:
It says:
Use the data from the table below to calculate the specific acousstic impedance, Z of
i) air, ii) skin, iii) fat. Use the equation Z = pc
Medium Densit (p) kg m-3 Ultrasound velocity (c) m s-1
air 1.3 330
skin 1060 1540
fat 925 1450
Using the following equation:
α = (Z2 - Z1)
(Z2 + Z1)
caluculate the intensity reflection coefficient, α at iv) an air-skin boundry, v) a skin-fat boundry. Show all stages of your working.
Im very bad in Physics...I have no Idea how to caluculate this equation
And I don't no how to start...please helppp mee...It help me very much to see how you calculate it THANK YOU VERY MUCH:
It says:
Use the data from the table below to calculate the specific acousstic impedance, Z of
i) air, ii) skin, iii) fat. Use the equation Z = pc
Medium Densit (p) kg m-3 Ultrasound velocity (c) m s-1
air 1.3 330
skin 1060 1540
fat 925 1450
Using the following equation:
α = (Z2 - Z1)
(Z2 + Z1)
caluculate the intensity reflection coefficient, α at iv) an air-skin boundry, v) a skin-fat boundry. Show all stages of your working.