3 years ago

Which statement is true about the atoms in helium gas?

Physics

2 answers:

Andre45 [30]3 years ago

8 0

B.
<span>They are not closely packed. </span>

Alex Ar [27]3 years ago

5 0

The answer is B :) I hope this helps

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A train going 14m/s moves 250 m while accelerating to a stop. What is the train’s deceleration?

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Answer:

-0.056 is the deceleration

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3 years ago

As pitch gets higher, wavelength gets?

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Wavelength gets shorter

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3 years ago

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Which of the following is the best thing to do after reading this

meriva

Look for scientific research about whether these claims are correct or not.

Explanation:

The best thing to do after reading this advertisement is to look for scientific research about whether these claims are correct or not.

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3 years ago

Unless indicated otherwise, assume the speed of sound in air to be v = 344 m/s. You have a stopped pipe of adjustable length clo

faltersainse [42]

Answer:

Length of pipe $= 0.057$ meter

Explanation:

Speed of a transverse wave on a string

$v = \sqrt{\frac{F}{\mu} }$

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Thus,

$\mu = \frac{m}{L}$

Substituting the given values we get -

$\mu = \frac{7.25 * 10^{-3}}{0.62}\\mu = 0.0117 \frac{Kg}{m}$

Speed of a transverse wave on a string

$v = \sqrt{\frac{4510}{0.0117} } \\v = 620.86 \frac{m}{s}$

For third harmonic wave , frequency is equal to

$f = \frac{nv}{2L}$

Substituting the given values, we get -

$f = \frac{3 * 620.86}{2 * 0.62} \\f = 1502.08$

Length of pipe

$L = \frac{nv}{4 f}$

Substituting the given values we get

$n = 1$ for first harmonic wave

$L = \frac{344* 1}{4*1502.08} \\L = 0.057$

Length of pipe $= 0.057$ meter

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4 years ago

In the circuit diagram, what does the symbol made of two Long lines and two short lines with a positive and a negative sign at e

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3 years ago