A wave is decribed by the equation `y = (1.0mm) sin pi ((x)/(2.0cm) - (t)/(0.1s)). (a) Find the time period and the wavelength ? (b) Write the equation for the velocity of the particles. Find the speed of the particle at x = 1.0cm at time t = 0.01s, (c ) What are the speeds of the particles at x =3.0 cm 5.0 cm aned 7.0cm at t = 0.01 ? (d) What are the speeds of the particles at x = 1.0 cm at t= 0.011, 0.012, and 0.013s ?