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2 years ago

Which phrase best describes a gravitational force?

SAT

1 answer:

irinina [24]2 years ago

6 0

Answer:

A force that pulls objects towards each other.

Explanation:

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In air, a sound wave with a frequency of 196 hz has a wavelength of about 1.76 meters. what is the wavelength of a wave if the f

Aloiza [94]

The wavelength of the sound wave if the frequency is increased to the given value is 0.44m.

Given the data in the question;

Frequency of sound wave a; $f_a = 196Hz = 196s^{-1}$

Wavelength of sound wave a; $\lambda _a = 1.76m$

Speed of sound wave; $v =\ ?$

Frequency of sound wave b; $f_b = 784Hz = 784s^{-1}$

Wavelength of sound wave b; $\lambda _b = ?$

<h3>Wavelength</h3>

Wavelength is simply the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.

It is expressed as;

$\lambda = \frac{v}{f}$

Where v is velocity and f is frequency.

First, we calculate the velocity of the sound wave in air from sound wave a.

$\lambda = \frac{v}{f}\\ \\1.76m= \frac{v}{196s^{-1}}\\\\v = 1.76m * 196s^{-1}\\\\v = 344.96m/s$

Now, we determine the wavelength of sound wave b using the velocity of sound wave in air calculated above.

$\lambda = \frac{v}{f}\\ \\\lambda = \frac{344.96m/s}{784s^{-1}}\\\\\lambda = 0.44m$

Therefore, the wavelength of the sound wave if the frequency is increased to the given value is 0.44m.

Learn more about wavelength: brainly.com/question/27120701

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2 years ago

One function of money is to allow comparisons between goods. For example, it would be difficult to compare "apples to oranges" i

cluponka [151]

Answer:True

Explanation:

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3 years ago

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How to add maths??? teacher gave question me to!:

Law Incorporation [45]

Answer:

The answer is 4

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If mGEF is thirteen less than five times mDEG and mDEF = 149. Find mGEF.

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3 years ago

Jerimiah is studying Wave A and Wave B. Wave A is traveling at 3 hertz, and Wave B is traveling at 1.2 hertz.

Inga [223]

The prediction about the waves if they were to crash into each other is that The resulting wave would travel at 4.2 hertz.

<h3>What is the wave about?</h3>

Note that:

Constructive interference of the waves is one that leads to an increase in amplitude or frequency of any kind of waves.

Hence:

F' = 3 Hz + 1.2 Hz

= 4.2 Hz

Destructive interference of the waves is one that lowers the amplitude or frequency of waves and as such:

F' = 3 Hz - 1.2Hz = 1.8 Hz

The prediction about the waves if they were to crash into each other is that The resulting wave would travel at 4.2 hertz.

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brainly.com/question/1451845

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