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Lostsunrise [7]

3 years ago

10

While watching a movie a spaceship explodes and there is a loud bang and flash of light. What is wrong with this scene? Explain

how you know using evidence and scientific reasoning from the lesson.

1 answer:

Ksenya-84 [330]3 years ago

4 0

Well if the ship was in space their shouldn’t be a loud bang. Because you can’t hear anything in space

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Svetradugi [14.3K]

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An organ pipe open at both ends has two successive harmonics with frequencies of 220 Hz and 240 Hz. What is the length of the pi

Harman [31]

Answer:

The length is $l = 8.6 \ m$

Explanation:

From the question we are told that

The frequencies of the two successive harmonics are $f_1 = 220 \ Hz$ , $f_2 = 240 \ Hz$

The speed of sound in the air is $v_s = 343 \ m/s$

Generally the frequency of a given harmonic is mathematically represented as

$f_n = \frac{n v }{2l}$

Here n defines the position of the harmonics

Now since the position of both harmonic is not know but we know that they successive then we can represented them mathematically as

$220 = \frac{n v}{2l}$

and

$240 = \frac{(n+1) v}{2l}$

So

$\frac{(n + 1 ) v}{2l} - \frac{n v}{2l} = 240-220$

=> $\frac{v}{2l} = 20$

=> $l = 8.6 \ m$

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vesna_86 [32]

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Induced EMF and Current in a Shrinking LoopShrinking Loop. A circular loop of flexible iron wire has an initial circumference of

vodomira [7]

Answer:

Explanation:

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