University Admission Physics Exam
Question 1 of 30
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A progressive wave on a string is described by \( y(x,t)=0.020\sin(40\pi t-10\pi x) \), where \(x\) is in meters and \(t\) is in seconds. What is the wave speed?
Select one option.
A
\( 2.0\,\text{m s}^{-1} \)
B
\( 4.0\,\text{m s}^{-1} \)
C
\( 8.0\,\text{m s}^{-1} \)
D
\( 0.50\,\text{m s}^{-1} \)
E
\( 20\,\text{m s}^{-1} \)
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