Question
A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength of 7.30 cm. If the cork is 12.0 m from shore, how long does it take a ripple passing the cork to reach the shore?
Answers
Henry
12m / 7.3*10^-2m/cy = 164.38 cycles.
164.38cy / 2cy/s = 82.2s.
164.38cy / 2cy/s = 82.2s.