Letω = angular speed (we can't do velocity with the given information),
f = frequency
ω = 2
π f
ω = 2
π (50 * 1000 Hz) = 100,000
π rad/sec ~= 314,159 rad/spec
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Sine and sign Sine is the mathemtical cyclic wave. The name is shortened to 'Sin'. Sign is to write one's name to a document.
with a sine wave
The period is 1 millisecond.
sine wave, with a period of 2pi/w
360 degrees