Locate the centroid x of the shaded area.

ME 3600 Notes – Week 6 Chapter 8: Signals Periodic: To repeat regularly over a period of time or space y(t+T =y(t) yt)=Asin(ωt+ϕ) [rad ] A=Amplitude ω=circular frequency s ω=2πf t=time [s]Φ=phase [rad] f=frequency [Hz=1/s] 2π 1 = T=period [s]= ω f 2 2 yt)=Acos (ωt)+Bsin ωt =Ccos ωt+ϕ ) C=√(A +B ) −1B π ϕ=tan A = 2 −ϕ A usually associated with cosine, B with sine