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Mrac [35]
3 years ago
11

A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?

Physics
1 answer:
Darya [45]3 years ago
5 0
-- Speed = (distance) / (time to cover the distance) = 840/2.5 = 336 m/s

-- Frequency = (speed) / (wavelength) = 336/0.70 = 480 Hz. 
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Oksana_A [137]

Answer:

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Explanation:

Given

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6 0
3 years ago
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ziro4ka [17]

Answer:

I think no.2 the answer

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3 0
3 years ago
In a simple machine, the energy input is 120 J. If the efficiency of the machine is 80%, calculate the energy output
pashok25 [27]

Answer:

<h2>96 Joules</h2>

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output \:  =  \: 0.8 \times 120

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Hope this helps...

Good luck on your assignment...

4 0
3 years ago
Please answer me!!! asappp​
Anastasy [175]

Answer:

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Explanation:

Yes it is lol

5 0
2 years ago
What is the wavelength of a wave if the wave speed is 24 m/s and the frequency is 48 Hz?
Mice21 [21]

Answer:

Wavelength is 0.5

Explanation:

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4 0
3 years ago
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