The vertical height of an ocean wave from a crest to a trough is 10 meters. What is the amplitude of the ocean wave?

Physics

2 answers:

natima [27]3 years ago

6 0

The amplitude of the wave would be 5 meters.

Fed [463]3 years ago

5 0

Answer:

Amplitude, A = 5 m

Explanation:

It is given that, the vertical height of an ocean from a crest to trough is 10 meters.

The attached figure shows the vertical height from a crest to a trough is 10 m. We know that the maximum displacement of the wave is called its amplitude. A represents the amplitude of wave. It is the distance from the baseline to the crest or to the trough.

So, the amplitude of the ocean wave must be equal to half of wave's height i.e. 10/2 = 5 meters.

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A bee wants to fly to a flower located due North of the hive on a windy day. The wind blows from East to West at speed 6.68 m/s.

Aleonysh [2.5K]

Answer: $53.31\°$ East of North

Explanation:

We have the following data:

Speed of the wind from East to West: $6.68 m/s$

Speed of the bee relative to the air: $8.33 m/s$

If we graph these speeds (which in fact are velocities because are vectors) in a vector diagram, we will have a right triangle in which the airspeed of the bee (its speed relative to te air) is the hypotense and the two sides of the triangle will be the <u>Speed of the wind from East to West</u> (in the horintal part) and the <u>speed due North relative to the ground</u> (in the vertical part).

Now, we need to find the direction the bee should fly directly to the flower (due North):

$sin \theta=\frac{Windspeed-from-East-to-West}{Speed-bee-relative-to-air}$