From the question, we are told that:
Wave speed, V = 3.0 m/s
Wave frequency, F = 9 Hz.
The formula for calculating wavelength = V /F
Wavelength = 3 / 9 = 0.33 m.
The correct option is A.
Answer:
λ₂ = 1.8 m
Explanation:
given,
wavelength of the string 1 = 0.90 m
frequency of the string 1 = 600 Hz
wavelength of string 2 = ?
frequency of the string 2 = 300 Hz
we now,

now,


λ₂ = 2 x 0.9
λ₂ = 1.8 m
Hence, the wavelength of the second string is equal to λ₂ = 1.8 m
In circuit theory, the voltages of parallel components are equal, while the currents of series components are equal. In that sense, ideal voltage sources can be freely connected in series, but must be of equal values to be connected in parallel. Similarly, ideal current sources can be freely connected in parallel, but must be of equal value to be connected in series.
2N- if it is sliding at a constant velocity, the net force (total force)=0 so the applied force and friction force are equal to make 0