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salantis [7]
3 years ago
14

I’m lost on what to do

Biology
1 answer:
icang [17]3 years ago
7 0

Answer:

me too

Explanation:

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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
<span>c =3.8* 10^{8} m/s
</span>
<span>c=λ*f
</span>⇒ λ= \frac{c}{f}
⇒ λ= \frac{3.8* 10^{8}}{9.4* 10^{9}}
⇒ <span>λ</span>=0.04 m

5 0
4 years ago
Chemicals that help chemical reactions occur at
nikitadnepr [17]
(4) organic catalysts

The job of catalysts in chemical reactions is to make the reaction go faster by lowering the amount of energy needed to activate the reaction. If less energy is needed for the reaction to occur, then the reaction can go faster because a large energy build-up is not needed.
8 0
3 years ago
8. Genetic engineering has directly increased productivity in which<br><br> U.S. industry?
frosja888 [35]

Answer:

Agriculture  

Explanation:

Genetic engineering can be defined as the use of genetic techniques aimed at modifying the genome of living organisms, thereby being used to develop Genetically Modified Organisms (GMOs). In the USA, genetic engineering methodologies have been used in agriculture to improve crop yields and reduce costs (for example, by reducing the need to use pesticides). Some of the most important genetic engineering techniques that nowadays are being used in agriculture research include biolistic transformation, <em>Agrobacterium</em>-mediated transformation, the CRISPR-Cas9 genome editing system, etc.

8 0
3 years ago
Carbohydrates contain _____.
Gwar [14]

Answer:

D

Explanation:

Carbo (Carbon) Hydr (hydrogen) Ates (Oxygen)

8 0
3 years ago
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Help please
photoshop1234 [79]
The answer is C because the independent variable is what you change in the experiment and you are changing the concentration of sugar
8 0
3 years ago
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