1. The problem statement, all variables and given/known data The displacement from equilibrium caused by a wave on a string is given by y(x, t) = (−0.00217 m)sin[(44.4 m−1)x − (728 s−1)t]. i need to find (b) number of waves in 1 m waves (c) number of complete cycles in 1 s cycles (d) wavelength (e) frequency 3. The attempt at a solution i first thought the wavelenght was 44.4m because of the formula Acos2pi(x/λ - t/T) but then i realized that you had to use the other formula : Acos(kx - wt) so k = 1/44.4m = 2pi / λ so λ wave length is 278.97m ?? is this right? then w = 2pif = 1/728s so f = 2.186 * 10 ^-4 HZ and with λ and f you can find the Velocity not sure if i found λ and f right? can you please tell me if i did it right? b) number of waves in 1 m i'm guessing you find this by 1/λ (c) number of complete cycles in 1 s and you find this by doing 1/ T i just want to make sure this is right. if the λ and f are right so i can get the rest of the answer thank you!