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Alina [70]
4 years ago
10

Average atomic mass of strontium

Biology
1 answer:
djyliett [7]4 years ago
6 0
Average atomic mass is 87.62 +- 0.01 u
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At birth Himalayan rabbits are usually
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C

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Suppose the phloem of a seed plant is damaged and does not function properly.
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Explanation:

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How would someone with diabetes know they need medical help?
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3 years ago
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.
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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
1) Gases diffuse most efficiently across a (1point) A) thin, moist, selectively permeable membrane. B) thin, moist, impermeable
saul85 [17]
A thin, moist, selectively, permeable membrane.
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3 years ago
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