Step 2: Recognize that the general form of a wave equation is y(x, t) = A sin(kx - ωt), where A is amplitude, k is the wave number, and ω is the angular frequency.
Step 3: From the equation, identify k and ω. Here, k = 2π * 0.5 and ω = 2π * 4.
Step 4: Calculate k: k = 2π * 0.5 = π m⁻¹.
Step 5: Calculate ω: ω = 2π * 4 = 8π rad/s.
Step 6: Find the frequency f using the formula f = ω / (2π). So, f = 8π / (2π) = 4 Hz.
Step 7: Calculate the wavelength λ using the formula k = 2π / λ. Rearranging gives λ = 2π / k = 2π / π = 2 m.
Step 8: Use the wave speed formula v = f * λ. Substitute f = 4 Hz and λ = 2 m into the formula: v = 4 Hz * 2 m.
