Two waves on a string are given by the following functions: y1(x, t) = 4 cos(20t − 30x) (cm) y2(x, t) = − 4 cos(20t + 30x) (cm) where x is in centimeters. The waves are said to interfere constructively when their superposition |ys| = | y1 + y2| is a maximum, and they interfere destructively when |ys| is a minimum.∗(a) What are the directions of propagation of waves y1(x, t) and y2(x, t)? (b) At t = (π/50) s, at what location x do the two waves interfere constructively, and what is the corresponding value of |ys|? (c) At t = (π/50) s, at what location x do the two waves interferedestructively, andwhatisthecorrespondingvalue of |ys| can you please explain the step and graph it please

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.