I have no idea about these questions.

Question 8: Ocean waves with a wavelength of 9.0 m and velocity v = 1.20 m/'s can be modeled using the equation shown y (x, () = (0.80 m) sin [(0.698 m-1) (x - vo]- Note that x and y are in meters and t is in seconds. (a) From the multiple-choice A, B, C and D, choose the graph ofy (x, t) att = 0. A. y (m) 0.5 x (m) 5 10 15 -0.5 B. y (m) 0.5 x (m) 10 15 -0.5y (ml 0.5 X (m) D.5 (c) How has the wave moved between graph (a) and graph (b)? A. The wave has traveled 2.40 m to the left. B. The wave has traveled 2.00 m to the right. C. The wave has traveled 2.00 m to the left. D. The wave has traveled 2.40 m to the right