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Author Question: What is a rip current? Describe the shorelines shape as a result of rip currents, and the cause of ... (Read 151 times)

lb_gilbert

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on: Jul 13, 2018
What is a rip current? Describe the shorelines shape as a result of rip currents, and the cause of the distinct shape.
  What will be an ideal response?

Question 2

The _______________ of a wave is the time it takes for two crests to pass a point.
  Fill in the blank with correct word.


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hramirez205

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Reply #1 on: Jul 13, 2018
Answer to Question 1

ANSWER: As waves pile up water onshore, water streams back offshore to create a rip current. Some high-energy beaches show a prominent scalloped shoreline with cusps five to ten meters apart, a suspicious sign of rip-current danger. Such rip currents can persist for long periods. Permanent rip currents can develop at groins, jetties, or rock outcrops, where water flowing against those structures piles up and is forced to flow offshore along the structure. A scalloped beach may form in an area of rip currents because each current erodes sand as it flows offshore, leaving the beach slightly indented at the point of offshore flow.

Answer to Question 2

ANSWER: period


lb_gilbert

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Reply 2 on: Jul 13, 2018
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
Wow, this really help

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