Mathematics, 30.07.2019 06:00 gabrielgutierrez730

1. what is the wave speed of a wave that has a frequency of 100 hz and a wavelength of 0.30 m? 2. what is the wave speed of a wave that has a frequency of 50 hz and a wavelength of 0.10 m? 3. what is the frequency of a wave that has a wave speed of 20 m/s and a wavelength of 0.50 m? 4. what is the frequency of a wave that has a wave speed of 80 m/s and a wavelength of 0.20 m? 5. what is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m? 6. what is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 440 hz? 7. what is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 880 hz? 8. what is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 hz? 9. what is the wave speed of a wave that has a frequency of 50 hz and a wavelength of 2.0 m? 10. what is the wave speed of a wave that has a frequency of 100 hz and a wavelength of 0.50 m? answer fast

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Answer from: mmaglaya1

1. 30 Hz
2. 5 Hz
3. 40 m/s
4. 400 m/s
5. .48 m/s
6. .77 m/s
7. .39 m/s
8. .625 m/s
9. 100 Hz
10. 50 Hz

Answer from: abby28734

For 1: The wave speed of the wave is 30 m/s

For 2: The wave speed of the wave is 5 m/s

For 3: The frequency of the wave is 40 Hz

For 4: The frequency of the wave is 400 Hz

For 5: The frequency of the wave is 300 Hz

For 6: The wavelength of the wave is 0.773 m

For 7: The wavelength of the wave is 0.386 m

For 8: The wavelength of the wave is 0.625 m

For 9: The wave speed of the wave is 100 m/s

For 10: The wave speed of the wave is 50 m/s

Step-by-step explanation:

Wave speed is defined as the product of its wavelength and frequency.

Mathematically,

$\text{Wave speed}=\lambda\times \nu$

where,

$\lambda$ = wavelength of the wave

$\nu$ = frequency of the wave

For 1:

We are given:

$\lambda =0.30m\\\\\nu=100Hz$

Putting values in above equation, we get:

$\text{Wave speed}=0.30\times 100=30m/s$

Hence, the wave speed of the wave is 30 m/s

For 2:

We are given:

$\lambda =0.10m\\\\\nu=50Hz$

Putting values in above equation, we get:

$\text{Wave speed}=0.10\times 50=5m/s$

Hence, the wave speed of the wave is 5 m/s

For 3:

We are given:

$\lambda =0.50m\\\\\text{Wave speed}=20m/s$

Putting values in above equation, we get:

$20/s=0.50m\times \nu\\\\\nu=\frac{20}{0.50}=40s^{-1}$

Hence, the frequency of the wave is 40 Hz

For 4:

We are given:

$\lambda =0.20m\\\\\text{Wave speed}=80m/s$

Putting values in above equation, we get:

$80/s=0.20m\times \nu\\\\\nu=\frac{80}{0.20}=400s^{-1}$

Hence, the frequency of the wave is 400 Hz

For 5:

We are given:

$\lambda =0.40m\\\\\text{Wave speed}=120m/s$

Putting values in above equation, we get:

$80/s=0.20m\times \nu\\\\\nu=\frac{120}{0.40}=300s^{-1}$

Hence, the frequency of the wave is 300 Hz

For 6:

We are given:

$\nu =440Hz\\\\\text{Wave speed}=340m/s$

Putting values in above equation, we get:

$340/s=\lambda\times 440\\\\\lambda=\frac{340}{440}=0.773m$

Hence, the wavelength of the wave is 0.773 m

For 7:

We are given:

$\nu =880Hz\\\\\text{Wave speed}=340m/s$

Putting values in above equation, we get:

$340/s=\lambda\times 880\\\\\lambda=\frac{340}{880}=0.386m$

Hence, the wavelength of the wave is 0.386 m

For 8:

We are given:

$\nu =400Hz\\\\\text{Wave speed}=250m/s$

Putting values in above equation, we get:

$250/s=\lambda\times 400\\\\\lambda=\frac{250}{400}=0.625m$

Hence, the wavelength of the wave is 0.625 m

For 9:

We are given:

$\lambda =2.0m\\\\\nu=50Hz$

Putting values in above equation, we get:

$\text{Wave speed}=2.0\times 50=100m/s$

Hence, the wave speed of the wave is 100 m/s

For 10:

We are given:

$\lambda =0.50m\\\\\nu=100Hz$

Putting values in above equation, we get:

$\text{Wave speed}=0.50\times 100=50m/s$

Hence, the wave speed of the wave is 50 m/s

Answer from: Quest

a. 3/4 ÷ 1/8 = 6

step-by-step explanation:

in the question, the number line represents 3/4 divided into 6 equal units. each arrow represents a unit and there are a total of six arrows.

the size of each unit is 1/8 as shown.

showing that 1/8 divides 3/4 into 6 divisions:

3/4 ÷ 1/8

= 3/4 x 8/1

= 3/1 x 8/4

= 3 x 2

= 6

hence, the number line represents six divisions given by 3/4 ÷ 1/8.

Answer from: Quest

g(x) is the negative form of f(x)? because whenever its the negative form it reflects its self over the x axis. idk if this is right though.

step-by-step explanation:

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