A series of parallel linear water wave fronts are travelingdirectly toward the shore at 15.0 cm>s on an otherwise placid lake.A long concrete barrier that runs parallel to the shore at a distance of3.20 m away has a hole in it. You count the wave crests and observe that75.0 of them pass by each minute, and you also observe that no wavesreach the shore at -+61.3 cm from the point directly opposite the hole,but waves do reach the shore everywhere within this distance. (a) Howwide is the hole in the barrier? (b) At what other angles do you find nowaves hitting the shore?

A series of parallel linear water wave fronts are travelingdirectly toward the shore at 15.0 cm>s on an otherwise placid lake.A long concrete barrier that runs parallel to the shore at a distance of3.20 m away has a hole in it. You count the wave crests and observe that75.0 of them pass by each minute, and you also observe that no wavesreach the shore at -+61.3 cm from the point directly opposite the hole,but waves do reach the shore everywhere within this distance. (a) Howwide is the hole in the barrier? (b) At what other angles do you find nowaves hitting the shore?

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Question

A series of parallel linear water wave fronts are traveling
directly toward the shore at 15.0 cm>s on an otherwise placid lake.
A long concrete barrier that runs parallel to the shore at a distance of
3.20 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 -+61.3 cm from the point directly opposite the hole,
but waves do reach the shore everywhere within this distance. (a) How
wide is the hole in the barrier? (b) At what other angles do you find no
waves hitting the shore?

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