A standing wave is formed as result of superposition of two plain waves that travel on the same string: y1(ac,t) = 15.5 m - cos(350 - t 2.1 - a3), y2(:c,t) = 15.5 m - 003(350 . t + 2.1 - 3:), where a: is in meters and t is in seconds. What is the distance between nodes? The distance between the nodes, d = 1.495 \\/ Units / . What is the position of the first anti-node (for a: > 0)? The first anti-node, x1, anti-node = 0.747 V Units m v V . What is the amplitude of oscillations at x = 0.4 m? The amplitude, A(x = 0.4 m) = Units _