A plane sound wave propagates along the \( x \)-axis. The damping coefficient of the wave is \( ... VIDEO
A plane sound wave propagates along the \( x \)-axis. The damping coefficient of the wave is \( \gamma=0.0230 \mathrm{~m}^{-1} \). At the point \( x=0 \) the loudness level is \( L=60 \mathrm{~dB} \). Find :
the loudness level at a point with coordinate \( x=50 \mathrm{~m} \);
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live
Other Videos By PW Solutions 2022-11-16 Prove that:
\[
\sin \frac{13 \pi}{3} \sin \frac{8 \pi}{3}+\cos \frac{2 \pi}{3} \sin \frac{5 \pi}... 2022-11-16 Which of the following is an amorphous solid?
(A) Graphite (C)
(B) Quartz glass \( \left(\mathrm... 2022-11-16 Circles are drawn through the point \( (2,0) \) to cut intercept of length ' 5 ' units on the \(... 2022-11-16 Prove the following by the principle of mathematical induction:
\( 1+3+5+\ldots+(2 n-1)=n^{2} \)... 2022-11-16 \( \mathrm{CN}^{-} \)рдПрдХ рдкреНрд░рдмрд▓ рдХреНрд╖реЗрддреНрд░ рд▓рд┐рдЧреЗрдВрдбреНрд╕ рд╣реИрдВред рдЗрд╕рдХрд╛ рдХрд╛рд░рдг рдпрд╣ рд╣реИ рдХрд┐ :
(A) рдЗрд╕рдореЗрдВ рдЛрдгрд╛рддреНрдордХ рдЖрд╡реЗрд╢ ... 2022-11-16 Tortlopsis utilis is the common bactenia, cultured in molasses and starchy materials like potato. 2022-11-16 A branch of science that deals with the maintenance of hives of honeybees for the production of ... 2022-11-16 рдЕрдиреБрдХреНрд░рдореЛрдВ рдореЗрдВ рдкреНрд░рддреНрдпреЗрдХ рдХрд╛ рд╡рд╛рдВрдЫрд┐рдд рдкрдж рдЬреНрдЮрд╛рдд рдХреАрдЬрд┐рдП, рдЬрд┐рдирдХрд╛ \( n \) рд╡рд╛рдБ рдкрд░ рджрд┐рдпрд╛ рдЧрдпрд╛ рд╣реИ :
\[
a_{n}=\fr... 2022-11-16 Classify each of the following equilibria as homogeneous or heterogeneous:
\[
2 \mathrm{~N}_{2} ... 2022-11-16 рд╕рд┐рджреНрдз рдХреАрдЬрд┐рдП рдХрд┐ рдлрд▓рди \( f(x)=\log \sin x \),
\( \left(0, \frac{\pi}{2}\right) \) рдореЗрдВ рдирд┐рд░рдиреНрддрд░ рд╡реГрджреНрдз... 2022-11-16 A plane sound wave propagates along the \( x \)-axis. The damping coefficient of the wave is \( ... 2022-11-16 For any complex number \( z \), the minimum value of \( |z|+|z-2 i| \), is 2022-11-16 Write a detailed note on parasitic adaptations in Ascaris. 2022-11-16 рдПрдХ рд╡рд┐рд▓рдпрди рдЬрд┐рд╕реЗ рдПрдХ рдЕрд╡рд╛рд╖реНрдкрд╢реАрд▓ рдареЛрд╕ рдХреЗ \( 30 \mathrm{~g} \) рдХреЛ \( 90 \mathrm{~g} \) рдЬрд▓ рдореЗрдВ рд╡рд┐рд▓реАрди рдХрд░рдХреЗ... 2022-11-16 Identify the false statement.
(A) DNA synthesis does not occur during the interkinesis of meioti... 2022-11-16 What is ionisation potential? Calculate it for hydrogen atom. 2022-11-16 рдкреНрд░реЛрдЯреЛрдбрд░реНрдо рдЙрддреНрдкрдиреНрди рд╣реЛрддреА рд╣реИ- (A) рдкреНрд░реЛрдореЗрд░рд┐рд╕реНрдЯреЗрдо рдореЗрдВ (B) рдХреИрдореНрдмрд┐рдпрдо рдореЗрдВ (C) рдкреНрд░реМрдХреИрдореНрдмрд┐рдпрдо рдореЗрдВ (D) рд╕рднреА рдореЗрдВ 2022-11-16 If \( f: R \rightarrow R \) given by
\[
f(x)=x^{3}+(a+2) x^{2}+3 a x+5
\]
is one-one, then a bel... 2022-11-16 Petals are usually brightly coloured and can be united or free in a flower. 2022-11-16 Find the equation of an ellipse whose foci are at \( (\pm 3,0) \) and which passes through ( 4,1... 2022-11-16 Which is the oldest breeding method?
(A) Introduction
(B) Selection
(C) Hybridisation
(D) Mutati...