Two oscillations of the same direction and the same period are added: x1 = A1sin ω1t and x2 = A2sin ω2(t+τ), where A1 = 1 cm; ω1 = ω2 = π s–1; τ = 0.5 s. Determine the amplitude A and the initial phase φ0 of the resulting oscillation. Write its equation.
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