The wave function for a traveling wave on a taut string is (in SI units)

y(x,t)=0.390sin(13πt−πx+π/4)

a) What are the speed and direction of travel of the wave?

b) What is the vertical position of an element of the string at t=0,x=0.112m?

c) What is the wavelength of the wave?

d) What is the frequency of the wave?

e) What is the maximum transverse speed of an element of the string?