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Alex Ar [27]
3 years ago
11

At a particular temperature, the speed of sound is 330 m/s and its frequency is 990 Hz. Choose the correct wavelength of this so

und wave.
m
Physics
2 answers:
koban [17]3 years ago
8 0

Answer:

1/3 M

I hope this helps :) sorry its late

Leona [35]3 years ago
5 0

Answer:

1/3 m

Explanation:

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2 years ago
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A mass of 0.450 kg rotates at constant speed with a period of 1.45 s at a radius R of 0.140 m in the apparatus used in this labo
Mamont248 [21]

Answer:

1.603 s

Explanation:

Given that

Initial mass, = 0.45 kg

Initial period, = 1.45 s

Initial radius, = 0.14 m

Final mass, = 0.55 kg

Final period, = ?

Final radios, = 0.14 m

Since we are finding the rotation period of two masses of same radius, we can assume that the outward force is the same in both cases. This means that

m₁r₁ω₁² = m₂r₂ω2²

Where, ω = 2π/T, on substituting, we have

0.45 * 0.14 * (2π / 1.45)² = 0.550 * 0.14 * (2π / T₂)²

0.45 / 1.45² = 0.550 / T₂²

T₂² = 0.550 * 1.45² / 0.45

T₂² = 2.56972

T₂ = √2.56972

T₂ = 1.603 sec

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2 years ago
If you run the 100 m track at a velocity of 5.0 m/s, what is the time needed?
Tresset [83]
100/5= 20, 20 seconds is the time needed.
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2 years ago
Will a solid metal sphere hold a larger elaectric charge than a hollow sphere of the same diameter?Where does the charge reside
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3 years ago
What evidence supports the theory that there is a black hole at the center of our galaxy?
777dan777 [17]

Explanation:

Scientist and astronomers have observed that large gas clouds and massive stars are orbiting around in an accelerated manner in center of our galaxy that is milky way. A massive star S2's motion has been studied and it is found that the star is revolving around the center of the galaxy. From this scientist have confirmed presence of super massive black hole of 3 million solar masses lurking around the center of milky way.

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3 years ago
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