The waves is a string (all in SI units) are y 1 = 0.6 sin (10 t – 20 x) and y 2 = 0.4 sin (10 t + 20x), mass per unit length of string is 10 –2 kg/m. Net energy transfer per unit time through any section of the string is –
Text Solution
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CHECK THE SOLUTION
(0.0500 W)
ρ s = µ = mass per unit length = 10 –2 kg
v = 
= 
= 0.5 m/s
P 1 = 
× 10 –2 × (10) 2 × (0.6) 2 (0.5) = 0.09 J/s
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