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Softa [21]
3 years ago
8

Which best explains how rotation affects the colors we see in the sky at dawn and dusk?

Chemistry
1 answer:
prisoha [69]3 years ago
5 0

<em>I think that the answer is C.)</em>

<em>It makes the most sense because one or two of the other options talk about the sun getting closer to the earth which makes no sense. Also, the Earth's spinning speed does not slow down so that rules out option B. Lastly, the answer cannot be A whereas the sun's light does not fade, rather the Earth spins with a shadow casting over its back due to no sunlight on that facing side.</em>

<em>Hope this helps and have a nice day.</em>

<em>-R3TR0 Z3R0</em>

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Independent variable in your own words
Ronch [10]

Explanation:

<em>An</em><em> </em><em>independent</em><em> </em><em>variable</em><em> </em><em>is</em><em> </em><em>defines</em><em> </em><em>as</em><em> </em><em>the</em><em> </em><em>variable</em><em> </em><em>that</em><em> </em><em>is</em><em> </em><em>changed</em><em> </em><em>or</em><em> </em><em>controlled</em><em> </em><em>in</em><em> </em><em>a</em><em> </em><em>scientific</em><em> </em><em>experiment</em><em>. </em>

6 0
3 years ago
What percent of I-125 has decayed if there are 37.5g of the original sample left?
garri49 [273]

Answer:

[(x-37.5)/x]*100%

62.5%  (assuming the original sample weighs 100.0g)

Explanation:

Let's say that the original sample is x

Mass of I-125 which has decayed: x-37.5

Percentage of decayed mass: [(x-37.5)/x]*100%

Please recheck, for this may not be the correct answer

6 0
3 years ago
The table above lists the wavelength range, frequency range, possible uses, and hazards of the seven types of electromagnetic ra
marusya05 [52]

Answer: A. Gamma Ray

Explanation:

X-ray scans can diagnose possibly life-threatening conditions such as blocked blood vessels, bone cancer, and infections. However, x-rays produce ionizing radiation—a form of radiation that has the potential to harm living tissue. However, the risk of developing cancer from radiation exposure is generally small.

Please mark brainliest if it helped :)

4 0
3 years ago
If you add 90 mL of 0.15M stock solution, to 10 mL of water, what is the new concentration?
lyudmila [28]

0,15 moles of NaOH-------in------------1000ml

x moles of NaOH------------in--------100ml

x = 0,015 moles of NaOH

final volume = 150ml

0,015 moles of NaOH---in-------150ml

x moles of NaOH--------------in-----1000ml

x = 0,1 moles of NaOH

answer:  0,1mol/dm³  (molarity)

6 0
3 years ago
Which substances have high electrical conductivity?
USPshnik [31]
Copper and gold is the answer I believe
5 0
3 years ago
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