Question:

A horizontal stretched string fixed at two ends is vibrating in its fifth harmonic according to the equation y(x, t) = 0.01m sin[(62.8m⁻¹x)]cos[(628s⁻¹t)]. Assuming π = 3.14, the correct statement(s) is/are: The number of nodes is 5; the length of the string is 0.25m; the maximum displacement of the midpoint of the string from its equilibrium position is 0.01m; the fundamental frequency is 100Hz.