3 years ago

Select the two true statement about a free body diagram

Physics

2 answers:

Andrew [12]3 years ago

5 0

It’s 1 and 4bjdjdjdjfndjd

BabaBlast [244]3 years ago

3 0

Answer: 1and4

Explanation:

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Two sound waves have equal displacement amplitudes, but wave 1 has two-thirds the frequency of wave 2. What is the ratio of the

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Answer:

$\dfrac{I_1}{I_2}=\dfrac{4}{9}$

Explanation:

c = Speed of wave

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Intensity of sound is given by

$I=\dfrac{1}{2}\rho c(A\omega)^2\\\Rightarrow I=\dfrac{1}{2}\rho c(A2\pi \nu)^2$

So,

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We get

$\dfrac{I_1}{I_2}=\dfrac{\nu_1^2}{\nu_2^2}\\\Rightarrow \dfrac{I_1}{I_2}=\dfrac{\dfrac{2}{3}^2\nu_2^2}{\nu_2^2}\\\Rightarrow \dfrac{I_1}{I_2}=\dfrac{4}{9}$

The ratio is $\dfrac{I_1}{I_2}=\dfrac{4}{9}$

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C.<span>Molecules can move more rapidly and freely and change states.
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When the force of air resistance on the skydiver
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Helga [31]

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