Write the equation for a (harmonic) wave traveling in the negative direction along the x-axis and having an amplitude of 0.010 m, a frequency of 550 Hz, and a speed of 330 m/s.
a) y = 0.01 sin(550π(x/330) - 2πft)
b) y = 0.01 sin(550π(x/330) + 2πft)
c) y = -0.01 sin(550π(x/330) - 2πft)
d) y = -0.01 sin(550π(x/330) + 2πft)
