A series of parallel linear water wave fronts are traveling directly toward the shore at 15.5 cm/s on an otherwise placid lake.
A long concrete barrier that runs parallel to the shore at a distance of 3.10 m away has a hole in it. You count the wave crests and observe that 75.0 of them pass by each minute, and you also observe that no waves reach the shore at ±62.3cm from the point directly opposite the hole, but waves do reach the shore everywhere within this distance.
Part A
How wide is the hole in the barrier?
Part B
At what other angles do you find no waves hitting the shore?
Enter your answers numerically separated by commas.
Part A
How wide is the hole in the barrier?
Part B
At what other angles do you find no waves hitting the shore?
Enter your answers numerically separated by commas.
1 answer:
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