3 years ago

What do lungs do in your body ?

2 answers:

5 0

We have millions of alveoli under our lungs, they diffuse oxygen molecules in our blood, then they get transported to every organ of our body through our Heart

Hope this helps!

ipn [44]3 years ago

5 0

They provide oxygen to your blood which in return is sent throughout your body oxygenating the other parts of the body such as the muscles, brain, etc.

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A wave is moving at 18 m/s. If its wavelength is 3 meters, what is its frequency?

Vlada [557]

here's the solution,

we know that,

=》

$wave \: speed = wavelength \times frequency$

so,

=》

$18 = 3 \times f$

=》

$f = \dfrac{18}{3}$

=》

$f = 6$

frequency = 6 hertz

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2 years ago

Which is a way that biotechnology has not helped society

nata0808 [166]

I would select answer C

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2 years ago

Leah watches a toy car move across a table at a constant speed. The car moves across the table in one direction and falls off th

Sedbober [7]

In order to change the direction and speed, a net external force is required. A net external force is an unbalanced force which will change the direction and gives the speed in the opposite direction. Hence, its an unbalanced force from the joey that pushes the car in the other direction due to which it the car starts to move back to Leah. Without, unbalanced force there is not change in the direction of the car's motion.

Hence, option B is correct.

5 0

2 years ago

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0.0135 kg of steam at 100°C is

lora16 [44]

Answer:

33333.35 kg

Explanation:

I got it right on Acellus, rounded to 33300 sigfigs

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2 years ago

in a human cannonball a person is shot from a cannon with a barrel that is 3.05 m long. 16700 J of work are done to accelerate t

ankoles [38]

The work done to accelerate the acrobat is given by
$W=Fd$
where F is the force applied and d the distance of application of the force.
If the barrel is 3.05 m long, then d=3.05 m. Therefore we can find the force:
$F= \frac{W}{d} = \frac{17600 J}{3.05 m} =5475 N$

6 0

3 years ago