PHYSICS HIGH SCHOOL

While sitting in your car by the side of a country road, you see your friend, who happens to have an identical car with an identical horn, approaching you. You blow your horn, which has a frequency of 260 Hz; your friend begins to blow his horn as well, and you hear a beat frequency of 6.0Hz .How fast is your friend approaching you?

Express your answer to two significant figures and include the appropriate units.

Answers

Answer 1

Answer:

Answer:

$v_s =7.74\ m/s$

Explanation:

given,

Speed of sound = 343 m/s

frequency of horn = 260 Hz

the friend is approaching, the frequency is increased by the Doppler Effect. The frequency is 266 Hz

using formula

$f' = (v)/(v-v_s)f_0$

$266= (343)/(343 - v_s)(260)$

$1.023= (343)/(343 - v_s)$

$343 - v_s = 335.26$

$v_s =7.74\ m/s$

the speed of friends approaching is equal to $v_s =7.74\ m/s$

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Answers

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Answers

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In the series circuit, if the current through r1 is 1.5 a, what is the current through r2?

Answers

In a series circuit, the current in all points of the circuit is the same. Hence, current through the resistor r2 is same as that of r1 that is 1.5 amperes.

What is series circuit ?

A circuit is the path through which current is passing which can be of open circuit or closed circuit. There are two ways in which the components are connected in the circuit namely, series and parallel.

In a series circuit, the electrical components are connected in a series fashion. Here, the current is the same in all points of the series circuit. But voltage will be different.

In the case of parallel circuits, the components are connected in a parallel fashion. The current passing through each parallelly connected device will be different.

Here, the two resistors are connected in series. Hence, the current passing through is the same that is 1.5 A for r2 also.

Find more on series circuits:

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In a series circuit the current is the same in every part of the circuit. So the current through r2 is 1.5A (the same that flows through r1)

What can be found in every skeletal muscle?

Answers

You can find muscle fibers, nerves, connective tissue, and blood vessels in every skeletal system. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

Answer:

D. tendons, nerves, blood vessels, and bones

Explanation:

Which of these charges has the greatest magnitude?a charge of -5
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