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Author Question: You and your surfing buddy are waiting to catch a wave a few hundred meters off the beach. The ... (Read 83 times)

casperchen82

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on: Jul 29, 2018
You and your surfing buddy are waiting to catch a wave a few hundred meters off the beach.
 
  The waves are conveniently sinusoidal, and you notice that when you're on the top of one wave and moving toward your friend, she is exactly halfway between you and the trough of the wave. 1.50 seconds later, your friend is at the top of the wave. You estimate the horizontal distance between you and your friend at 8.00 m.
  (a) What is the frequency of the waves?
  (b) Find the speed of the waves.
  What will be an ideal response?

Question 2

Ocean tides are waves that have a period of 12 hours, an amplitude (in some places) of 1.50 m, and a speed of 750 km/hr. What is the distance between adjacent crests of these waves?
 
  A) 9000 km
  B) 32,400 km
  C) 9000 m
  D) 32,400 m
  E) 2500 m


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Jayson

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: (a) 0.167 Hz (b) 5.33 m/s

Answer to Question 2

Answer: A


casperchen82

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Reply 2 on: Jul 29, 2018
Gracias!

ecabral0

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Reply 3 on: Yesterday
Excellent

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