[问答题]
A wave whose wavelength u. (du4s+mw iti1*0few k:ygvgs 0.500 m is traveling down a 500 m long wire whose total mass is0g:ky ewfvg*1 25.0 kg. The wire is under a tension of 2000 N. (a) Determine the velocity of the wave on the wire. (b) Determine the frequency of this wave.