4 years ago

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1 answer:

Elena-2011 [213]4 years ago

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I think it is Circulatory & muscular because it is Improving your endurance and provides numerous health benefits, including better heart health, protection from injury and weight control..?

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A stationary horn emits a sound with a frequency of 228 Hz. A car is moving toward the horn on a straight road with constant spe

stiks02 [169]

Answer: 26.84 m/s

Explanation:

Given

Original frequency of the horn $f_o=228\ Hz$

Apparent frequency $f'=246\ Hz$

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$\Rightarrow f'=f_o\left(\dfrac{v+v_o}{v-v_s}\right)$

Where,

$v_o=\text{Velocity of the observer}\\v_s=\text{Velocity of the source}$

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Thus, the speed of the car is $26.84\ m/s$

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