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iris [78.8K]
3 years ago
14

What happens to the wavelength as the frequency of a whale noise changes from 200hz to 300hz

Physics
1 answer:
rewona [7]3 years ago
4 0

Answer:

When there is an increase in the frequency of sound waves, the wavelength decreases.

Explanation:

Given data,

The frequency of the whale changes from 200 Hz to 300 Hz

The formula for frequency and wavelength is,

                             λ = v/f

Where v is the velocity of the sound waves in water (1531 m/s)

The wavelength at 200 Hz is,

                             λ = 1531/200

                                = 7.655 m

The wavelength at 300 Hz is,

                             λ = 1531/300

                                = 5.1 m

Hence, when there is an increase in the frequency of sound waves, the wavelength decreases.

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The normal is a line perpendicular to the reflecting surface at the point of incidence.
ladessa [460]

Answer:

True

Explanation:

The normal line is defined as the line which is perpendicular to the reflecting surface at the point where the incident ray meet with the reflecting surface.

The angle of incident is defined as the angle which is subtended by the incident ray with respect to the normal ray by consider the normal ray as the base line and angle is measured from the point where incident ray is incident on the reflecting surface of the mirror.

Similarly reflecting ray can be defined as the ray which is reflected after the incident of a ray and the angle subtended by the reflecting ray is measure with respect to normal ray by considering normal ray as a base line.

Therefore, the normal ray is the perpendicular line to the reflecting surface at the point of incidence.

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3 years ago
In doing a load of clothes, a clothes dryer uses 16 A of current at 240 V for 45 min. A personal computer, in contrast, uses 2.7
jasenka [17]

Explanation:

Given that,

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Let t' is the time for this computer to "surf" the internet. Again using formula of energy used as :

E=I'V't'\\\\t'=\dfrac{E}{I'V'}\\\\t'=\dfrac{1.03\times 10^7}{2.7\times 120}\\\\t'=31790.12\ s\\\\t'=8.83\ h

So, for 8.83 hours you could use this computer to "surf" the internet.

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Blank occurs when salt is evenly mixed with water
podryga [215]
I think solution because it dissolves
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All traditional oriental medicine recognizes that an energy force called _____ flows through the body.
valentina_108 [34]

All traditional oriental medicine recognizes that an energy force called Qi flows through the body.

Traditional Chinese medicine is predicated on the idea that qi, or the body's life force, travels along meridian channels and maintains equilibrium in a person's physical, mental, emotional, and spiritual well-being. The Feldenkrais technique is a type of somatic education that combines focused attention and gentle movement to improve human function and mobility. You can broaden your range of motion, boost your comfort level, and enhance your flexibility and coordination by using this method. This could involve your food, your workout routine, psychotherapy, relationship counseling, and more. therapies that are complementary or alternative, including acupuncture, chiropractic adjustments, homeopathy, massage, naturopathy, and others.

Learn more about force here-

brainly.com/question/13191643

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7 0
2 years ago
Which of the organisms shown below consists of only one cell? 1)pine tree 2)ameba 3)mushroom 4)earthworm
QveST [7]
Ameba. Hope this helps!!!
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