5.84
1/3. l = 1/2. λ
1/3. 1,5 = 1/2. λ
λ = 1/3 . 1,5 / (1/2) = 1 m
a. v = λ. f = 1. 100
v = 100 m/s
b.
μ = m/l = 3.10⁻³ / 1,5 = 2.10⁻³
v = √F/μ
v²= F/μ
F = μ. v² = 2.10⁻³. 100²
F = 20 N
5.85
μ = m/l = ρ.V/l = ρ.A.l/l
μ = ρ. A = 8,9. 10³ . 0,25.10⁻⁶
μ = 0.002225 kg/m
f = v/2l = √F/μ / 2l
f = √(80/0.002225) / ( 2. 0,4 )
f = 189,6/0,8 = 237 hz
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
5.84
1/3. l = 1/2. λ
1/3. 1,5 = 1/2. λ
λ = 1/3 . 1,5 / (1/2) = 1 m
a. v = λ. f = 1. 100
v = 100 m/s
b.
μ = m/l = 3.10⁻³ / 1,5 = 2.10⁻³
v = √F/μ
v²= F/μ
F = μ. v² = 2.10⁻³. 100²
F = 20 N
5.85
μ = m/l = ρ.V/l = ρ.A.l/l
μ = ρ. A = 8,9. 10³ . 0,25.10⁻⁶
μ = 0.002225 kg/m
f = v/2l = √F/μ / 2l
f = √(80/0.002225) / ( 2. 0,4 )
f = 189,6/0,8 = 237 hz