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formula powerboats
Physics problem about Doppler Effect?
A wave on the surface of the ocean with wavelength 44m is traveling east at a speed of 18m/s relative to the ocean floor. If on, this stretch of ocean surface, a powerboat is moving 15m/s (relative to the ocean floor), how often does the boat encounter a wave crest, if the boat is traveling a) west and
b) east?
Please show formulas.
(a) V(wave) = 18 m/s
V(boat) = 15 m/s
V(net) = 33 m/s
V = fλ, therefore f = V(net)/λ = 33/44 = 0.75 per sec
(b) V(net) = 18 - 15 = 3 m/s
f = V(net)/λ = 3/44 = 0.07 per sec
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formula powerboat sodertalje
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Australian Formula Powerboats bound for Geelong – Power Boat – World –
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