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3 years ago

Which region of the ear gathers information and funnels sound

Physics

2 answers:

Marianna [84]3 years ago

4 0

The outer ear is the part of the ear that takes up the sound waves and funnels them into the canal.

Answer: Option A

<u>Explanation: </u>

The outer ear is a region of the ear that gathers the information and then funnels the sound into the middle ear. The phrase “funnels the sound” means that the waves of sound are converted into vibration.

These vibrations are then changed as the nerve signals by cochlea present in the inner ear. These nerve signals are read by the brain and the information is received.

Alona [7]3 years ago

3 0

B. The inner ear.

Hope this helps!

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kozerog [31]

Answer:

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∠i = ∠r

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2 years ago

A resistor with an unknown resistance is connected in parallel to a 13 Ω resistor. When both resistors are connected in parallel

larisa86 [58]

Answer:

R2 = 10.31Ω

Explanation:

For two resistors in parallel you have that the equivalent resistance is:

$\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}\\\\$ (1)

R1 = 13 Ω

R2 = ?

The equivalent resistance of the circuit can also be calculated by using the Ohm's law:

$I=\frac{V}{R_{eq}}\\\\R_{eq}=\frac{V}{I}$ (2)

V: emf source voltage = 23 V

I: current = 4 A

You calculate the Req by using the equation (2):

$R_{eq}=\frac{23V}{4A}=5.75\Omega$

Now, you can calculate the unknown resistor R2 by using the equation (1):

$\frac{1}{R_2}=\frac{1}{R_{eq}}-\frac{1}{R_1}\\\\R_2=\frac{R_{eq}R_1}{R_1-R_{eq}}\\\\R_2=\frac{(5.75\Omega)(13\Omega)}{13\Omega-5.75\Omega}=10.31\Omega$

hence, the resistance of the unknown resistor is 10.31Ω

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