A certain transverse wave is described by

y$($x$,$t$)=$Bcos$[2$$($xL$$t$)]$y$($x$,$t$)=$Bcos$[2$$($xL$$t$)],$

where BB $=6\mathrm{.}20$ mmmm$,$ LL $=26\mathrm{.}0$ cmcm$,$ and $=4\mathrm{.}00102$ ss$.$

Part A

Determine the wave's amplitude.

Express your answer in meters.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

AA $=$

nothing

mm

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Part B

Determine the wave's wavelength.

Express your answer in meters.

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$=$

nothing

mm

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Part C

Determine the wave's frequency.

Express your answer in hertzes.

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ff $=$

nothing

HzHz

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Part D

Determine the wave's speed of propagation.

Express your answer in meters per second.