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kakasveta [241]
3 years ago
10

What are machines fueled by?

Physics
2 answers:
sveta [45]3 years ago
7 0
A or D most likely d so I pick D
Ilia_Sergeevich [38]3 years ago
3 0
(AB) & (CD)
Most machines are fueled by gasoline and electricity
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ch4aika [34]
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4 years ago
What is the velocity of a dog who travels south 50 meters in 9 seconds
julia-pushkina [17]
Roughly 5.6 meters per second (m/s)

Velocity is determined by distance divided by time. In this case, we divide 50 meters by 9 seconds, giving us the dog’s velocity of 5.55555 (repeating) meters per second. We can round to 5.6 m/s if needed.
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3 years ago
Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y
AnnyKZ [126]

The wavelength of the interfering waves is 3.14 m.

<h3>Calculation:</h3>

The general equation of a standing wave is given by:

y = 2A sin (kx) cos (ωt)                            ......(1)

The given equation represents the standing wave produced by the interference of two harmonic waves:

y = 3 sin (2x) cos 5t                                .......(2)

Comparing equations (1) and (2):

k = 2

We know that,

k = 2π/λ

λ = 2π/k

λ = 2 (3.14)/ 2

λ = 3.14 m

Therefore, the wavelength of the interfering waves is 3.14 m.

I understand the question you are looking for is this:

Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 3 sin (2x) cos 5t where x is in m and t is in s. What is the wavelength of the interfering waves?

Learn more about interfering waves here:

brainly.com/question/2910205

#SPJ4

5 0
2 years ago
Determine the speed
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4 years ago
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Answer:

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Explanation:

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