The amplitude:

$\overline{){\mathbf{A}}{\mathbf{=}}{{\mathbf{x}}}_{\mathbf{m}\mathbf{a}\mathbf{x}}}$

Frequency:

$\overline{){\mathbf{F}}{\mathbf{=}}\frac{\mathbf{1}}{\mathbf{T}}}$

The general wave equation of a sinusoidal wave:

$\overline{){\mathbf{x}}{\mathbf{=}}{\mathbf{A}}{\mathbf{c}}{\mathbf{o}}{\mathbf{s}}{\mathbf{(}}{\mathbf{\omega}}{\mathbf{t}}{\mathbf{+}}{\mathbf{\varphi}}{\mathbf{)}}}$

**Part A**

From the graph, the maximum value of x is 20 cm

**Part A**

What is the amplitude of the oscillation shown in the figure? (Figure 1)

Express your answer to three significant figures and include the appropriate units.

**Part B**

What is the frequency of this oscillation?

Express your answer to two significant figures and include the appropriate units.

**Part C**

What is the phase constant?

Express your answer to two significant figures.

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