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inna [77]
3 years ago
8

Which structure contains cells that attach to the molecules we breathe in?

Physics
2 answers:
Sav [38]3 years ago
7 0
Sinus cavity search up the options and go to images and make the best of it if I’m wrong
Dmitriy789 [7]3 years ago
4 0

Answer:

I’m pretty sure it would be the sinus cavity

Explanation:

They are located on the sides of your nose and they help filter and add moisture to any air that is inhaled

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A freight train rolls along a track with considerable momentum. If it were to roll at the same speed but had twice as much mass,
fomenos

Answer:

The momentum would be doubled

Explanation:

The magnitude of the momentum of the freight train is given by:

p=mv

where

m is the mass of the train

v is its speed

In this problem, we have that the speed of the train is unchanged, while the mass of the train is doubled:

m'=2m

therefore, the new momentum is

p'=m'v=(2m)v=2(mv)=2p

so, the momentum has also doubled.

7 0
2 years ago
Please help question in photo
bonufazy [111]

Answer:

A.) the car

Explanation:

hope this helped <3

8 0
2 years ago
A 2,000 g quantity of C-14 is left to undergo radioactive decay. The half-life of C-14 is approximately 5,700 years. After going
Katyanochek1 [597]
Start with 2,000 grams.
After 1 half-life, 1,000 grams are left.
After another half-life, 500 are left.
After another half-life, 250 are left.
After another half-life, 125 are left.

That was FOUR half-lifes.

X = 4 .
8 0
3 years ago
Read 2 more answers
Using the right amount of significant figures, calculate the answer to the following problem, 215.5+101.02555
cestrela7 [59]

Answer:

This is how I figured it out:

  1. 215.5 rounded to one significant figure is 200
  2. 101.02555 rounded to one significant figure is 100.
  3. 200 + 100 = 300.

Hope this helps!

Explanation:

7 0
3 years ago
_____ are primarily found in an asteroid belt.
zvonat [6]
Asteroids are primarily found in an asteroid belt
4 0
3 years ago
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