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3 years ago

A sound wave with a frequency of 300 hertz is traveling a medium at a speed of 320 meters/second. What is it’s wavelength

Physics

2 answers:

user100 [1]3 years ago

8 0

Wavelength = (speed) / (frequency)

Wavelength = (320 m/s) / (300 / sec)

Wavelength = (1 and 1/15) m/s

erik [133]3 years ago

8 0

Answer:

1.07m

Explanation:

Wavelength of a wave is the distance between two successive crest and trough of a wave. It can be expressed as the ratio of the speed of the wave (v) to its frequency (f)freq 300

Mathematically,

wavelength (¶) = speed of wave (v)/frequency (f)

Given speed = 320m/s and frequency = 300Hertz

Wavelength = 320/300

Wavelength = 1.07m

The wavelength of the wave is therefore 1.07m

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Tomtit [17]

Answer:

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Explanation:

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Andrews [41]

Answer:

Explanation:

Hi there,

To get started, recall the kinematic equations from either a textbook, equation sheet, etc. Kinematic equations are used when acceleration is constant, as stated in the prompt.

Best way to use kinematic equations is to see which variable you are looking for, then which variable is unknown to you and is not needed for that equation.

a) average velocity

Takes the form of:

$v_a_v_g=\frac{d_t_o_t_a_l}{t}=\frac{v+v_0}{2}$ this is the literal definition of average velocity; initial plus final divided by 2.

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b) the final velocity

We can still use the average velocity formula, as the other two equations that include final velocity have acceleration variable which is unknown as of now.

Solve for final velocity:

$v=(2v_a_v_g)-v_o = 2(41 \ m/s) - (8 m/s) = 74 m/s\\$ this makes sense, since a velocity later in time is higher than a velocity earlier in time. It is increasing with increasing time because of acceleration.

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There are two equations that can be used to solve this, but we will use the less time-consuming one, but both produce same answer:

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Notice, change in velocity over change in time, and acceleration is constant. When acceleration is constant, it models a linear function, and acc. is just slope!

Study well and persevere. If you liked this solution, hit Thanks or give a rating!

thanks,

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