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ELEN [110]
3 years ago
7

The beat your doctor listens to through a sethoscope is the sound of the four values opening

Physics
1 answer:
djyliett [7]3 years ago
5 0

and closing .

The heart has 4 valves. They are what makes the lub-dub lub-dub sounds that can be heard from the chest.  

The mitral valve is located between the left atrium and the left ventricle. It closes the left atrium to collect oxygenated blood from the lungs and opens to pass it on to the left ventricle.

The tricuspid valve is located between the right atrium and the right ventricle. It closes the right atrium to hold unoxygenated blood and opens to pass it on to the right ventricle ensuring a one way flow.

The aortic valve is located between the aorta and the left ventricle. It closes the left ventricle and opens to the aorta to pass on the oxygen-rich blood to the body.

The pulmonary valve is located between the pulmonary artery and the right ventricle. It closes off the right ventricle and opens to pass on unoxygenated blood to the lungs.


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AlladinOne [14]
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6 0
3 years ago
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2.
gizmo_the_mogwai [7]

Answer:

a) P1=100kpa

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P2=50kpa

rearranging mathematically the expression for Boyle's law

V2=(P1V1)/P2=(100×6)/50=12m³

b) same apartment as in (a) but only the value of P2 changes

=> V2=(100×6)/40=15m³

Explanation:

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4 0
2 years ago
Will give brainlist!! Please help!!
Marrrta [24]

Answer:Electromagnetic Energy Example One

activity: cellphones

type of electromagnetic: radio waves

description: we all use our phones to make phone calls and to send a text!

Electromagnetic Energy Example two

activity: microwave

type of electromagnetic: microwave radiation

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Explanation:

i hope this helps you sorry if it doesn't

5 0
2 years ago
Mr. Mehta cut several 275-centimeter lengths of wallpaper to put in his
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Answer:

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1 meter = 100 centimeters.

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6 0
3 years ago
Unlike velocity, speed is scalar, which means it is described by ______<br> only.
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Hi there,

Unlike velocity,speed is scalar,which means it is described by MAGNITUDE only.

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