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2 years ago

Describe electric discharge

2 answers:

8 0

An electric discharge is the release and transmission of electricity in an applied electric field through a medium such as a gas. Several types of electric discharges occur naturally on Earth (American Geophysical Union, 1986):

ASHA 777 [7]2 years ago

6 0

A Electric Discharge is the release and transmission of electricity.

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Short wavelengths, from high-pitched sounds, cause displacement of the basilar membrane near the oval window. true false

lakkis [162]

Answer:

True

Explanation:

Short wavelengths, from high-pitched sounds, cause displacement of the basilar membrane near the oval window, is a True statement.

Stapes bones transmit movement to the oval windows. Stapes cause the round window membrane to move out. This turn allows the movement of fluid within the cochlea. This leads to motion of inner cochlear inner hair and thus hearing is possible.

8 0

3 years ago

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To understand the concept of intensity; the relationship between the power of the source and the intensity of the wave; and the

frez [133]

Answer:

a. 4.77 W/ $m^{2}$

b. 2.122 W/ $m^{2}$

c. 13.78 W/ $m^{2}$

d. 69 km

Explanation:

power P of speaker = 60 W

distance d of speaker = 1.0 m

intensity I of speaker = P/4π $d^{2}$

I = 60/(4 x 3.142 x $1^{2}$ ) = 60/12.568

Intensity = 4.77 W/ $m^{2}$

at a distance of 1.5 m, intensity will be

I = P/4π $d^{2}$

I = 60/(4 x 3.142 x $1.5^{2}$ ) = 60/28.278

Intensity = 2.122 W/ $m^{2}$

combined intensity of the two front speakers will be 2 x 4.77 = 9.54 W/ $m^{2}$

combined intensity of the two back speaker will be 2 x 2.122 = 4.244 W/ $m^{2}$

total sound intensity perceived by the driver will be the superimposition of these four speakers.

I = 9.54 + 4.244 = 13.78 W/ $m^{2}$

Minimum discernible intensity of sound = $10^{-12}$ W/ $m^{2}$

each speaker produces 0.06 W of power.

We assume that each speaker spreads outward evenly.

from I = P/4π $d^{2}$ ,

d = $\sqrt{\frac{P}{4*\pi*I } }$

d = $\sqrt{\frac{0.06} {4*\pi*10^{-12 } }$ = 69094.35 m ≅ 69 km

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3 years ago

A __________ is a device designed to open and close a circuit by non-automatic means and to open the circuit automatically on a

strojnjashka [21]

Answer:

Circuit breaker

Explanation:

Circuit breaker is the devise designed to protect the circuit from over current by opening the circuit automatically. Breaker can also be off manually by toggle switch. Earlier fuses were used but circuit breakers have replaced them. Fuse and circuit breakers operates differently. in case of overloading fuses blown off and opens the circuit while circuit breaker opens the circuit automatically without being blown off.

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3 years ago

I NEED THE RIGHT ANSWER ASAP NO LINKS !!! This is a Science question

sergeinik [125]

Answer:

independent variable

Explanation:

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2 years ago

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What is the average velocity in the time interval 3 to 4 seconds