3. The sinusoidal wave on a (very long) y (cm) The diagram shows a snapshot graph 5 ( of the wave at t = 0.00 s. The 4 frequency of the wave is 8.0 Hz. For all questions, show your work so I can 2 ' ' follow your reasoning. 0 X(m) a. What is the speed of the _2 10 2O wave? (3 points) _4 b. Write the wavefunction for the wave? Finding numerical values and units for all constants in the equation, and state whether terms are positive or negative. (12 points) string shown is travelling to the left. c. What is the speed of the particle located at x = 2.0 m at time t = 0.00 s? (10 points)