Answer: Δβ = 28.5278 dB
Explanation:
from the question we are given that;
the sound gathering area Ga = 15.0 cm²
total area Ae = 0.800 cm²
efficiency ε = 38 %
therefore we have that the effective gathering area of the stethoscope is;
As = ε Ga
As = 38 % × 15 = 5.7 cm²
But I ∝ 1/A
where Ie/Is = As/Ae
Ie/Is = 5.7/0.800 = 7.125
given that we are to assume that sound is transmitted into a stethoscope 100 times, this gives
I'e/I's = Ie/Is × 100 = 7.125 × 100 = 712.5
Δβ = βe - βs = (10dB) log (I'e/Io) - (10dB) log (I's/Io)
Δβ = (10dB) log (I'e/I's)
Δβ = (10dB) log (712.5) = 28.5278
Δβ = 28.5278 dB
cheers i hope this helps
Answer:
0.6 mL
Explanation:
This is a desire over have question, so first you will want to see your units are the same (mg to mg, g to g, etc).
Then after that , you will multiply with with the mL (which is 5) and divide by 25 mg, which is 0.6
3mg * 5mL / 25 mg = 0.6 mL since the mg units cancel out.
Answer: Scapular spine.
Explanation:
The spine is a bony prominence which protrudes from the dorsal surface of the scapula. It separates this dorsal surface into two uneven compartments: a supraspinal fossa, and a substantially larger infraspinal fossa.
Answer:the hip
Explanation:
You place it closest to the missing limb so if it was the arm you would clip near shoulder.
