How does the Doppler effect help a Beluga whale determine whether a fish is going away from it or toward it

Answers

Answer 1

Answer: If the Beluga Whale makes a sound that hits a fish moving towards it, the frequency of the sound that the Beluga gets back will be increased (higher pitch). If the fish was moving away when the sound hit it, the sound will come back to the whale in a lower frequency (lower pitch). So depending on what sound the whale hears reflected off the fish, it can tell if the fish is moving away or closer.

Related Questions

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Why were efficient bureaucracies needed for the nation-state to develop?
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The North American Free Trade Organization (NAFTA) is an example of what type of region? Cultural, economic, Physical, or Political

What percentage of the land in Australia is used for agriculture

Answers

55% is the correct answer.

Approximately 53% of Australia's total land area was used for agriculture. On a state basis, Tasmania had the smallest proportion of farm land (24% of state area) while the highest was in Queensland (81% of state area).

The Ring of Fire is a major belt of volcanic activity circling the Pacific Ocean.a. True
b. False

Answers

Yes, this is true!

This Ring on Fire goes from the Southen Tip of South America, and all the Pacific Coast of both South and North America, through the Bering Strait and on the Pacific Coast of Asia, including Japanese Islands, and circles Australia, thought at a distance from it.

Answer:

true

Explanation:

Whats another name for hawaiian islands?

Answers

The first western name for the Hawaiian Island was Sandwich Islands - this was the name given by James Cook when he visited the Islands in 1778 (the name doesn't have anything to do with the characteristics of the islands, it was a name in honour of a person).

Satellite imagery is used most often with __________. A.

aerial photography

B.

GIS

C.

GPS

D.

radar

Answers

Answer: C - GPS
GPS (global positioning system) uses the satellite to transmit and receive signal, indicating about one's location.

Hope it helped!

Satellite imagery is used most often with GPS

Reagan surveyed a number of her classmates about what time they usually go to bed. Of the fifteen classmates she asked, nine said 10 p.m. What central angle measure would you use to represent this group on a circle graph?

Answers

Answer:

A pie chart

Explanation:

A pie chart can simply be used to measure and represent her observation. From the given parameters;

the total number of students = 15

Number of students that said 10pm = 9

using the pie chart; we take each measure to be fraction of the angles in a circle.

Angle subtended by the 9 students = $(9)/(15)$ x 360 = 216°

Answer:

central angle measured is 60%

Explanation:

Given information

Total number of 15 student out of which 9 said , they go to bed at 10 p.m

To represent the group on circle follow following steps

Total are total 15 students

9 out of total 15 student said 10 pm

therefore $(9)/(15) = 0.60 = 60%$

answer

central angle measured is 60%

Did agriculture bring overwhelming benefits and progress? a) Yes, agriculture led to significant benefits and progress. b) No, agriculture had many disadvantages and setbacks. c) It had mixed consequences, with both benefits and drawbacks. d) Agriculture's impact varied by region and culture.

Answers

Answer: a) Yes, agriculture led to significant benefits and progress

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A goal of financial regulatory agencies is to

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From Earth, the planet __________ is visible to the naked eye.a. Mercury c. the moon b. Ceres d. Pluto