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1 year ago

What changes occur in the atmosphere as you go higher?.

Biology

1 answer:

solong [7]1 year ago

3 0

Answer:

Air pressure drops, and temperatures get colder.

Explanation:

Hope this helps!!

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A communications satellite transmits a radio wave at a frequency of 9.4 x 10^9 Hz. What is the signal’s wavelength? Assume the w

sergejj [24]

To calculate this we will use the light equation:
$c=$ λ $*f$

We have Frequency $f=9.4* 10^{9}Hz$ .
We know that speed of light in vacuum is $c =3.8* 10^{8} m/s$ .
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).

So:
$f=9.4* 10^{9}1/s$
 $c =3.8* 10^{8} m/s$

 $c=$ λ $*f$
⇒ λ $= \frac{c}{f}$
⇒ λ $= \frac{3.8* 10^{8}}{9.4* 10^{9}}$
⇒ λ $=0.04 m$

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3 years ago

Mitochondria are responsible for providing( )for the cell. Aerobic respiration happens in the mitochondria.

QveST [7]

Answer:

energy rich molecules

Explanation:

Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. The biochemical processes of the cell are known as cellular respiration.

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2 years ago

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Which type of fish are sharks?

MaRussiya [10]

Answer:

B. Cartilaginous fish

Explanation:

Sharks have a cartilaginous skeleton. Cartilage is less dense than bone which allows sharks to move quickly through the water without using too much energy.

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1 year ago

Magnifying Living Things

tekilochka [14]

Answer:

"bark" (and any subsequent words) was ignored because we limit queries to 32 words

Explanation:

-_-

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1 year ago

Which Statement isna conclusion?

tekilochka [14]

Answer: C

Explanation:

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2 years ago