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3 years ago

What causes abscess in breast in a 12 year old?

Biology

1 answer:

arlik [135]3 years ago

7 0

It can because of abrasions/lacerations or trauma

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Water flow improves in the aftermath of a forest fire because

EastWind [94]

Has to be one lol I don’t know but I can recommend a tutor

7 0

3 years ago

Pls help me unjumble and guess the words ty

VashaNatasha [74]

Answer:

Farming

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4 0

2 years ago

An owl has good night vision because its eyes can detect a light intensity as small as 5.0 × 10-13 W/m2. What is the minimum num

Lady bird [3.3K]

Answer:

Thus, the minimum number of photons per second is 77.34

Explanation:

Light intensity, $I_{min}$ = $5\times 10^{-13} W/m^{2}$

Pupil has a diameter, d = 8.5 mm

= 8.5 x $10^{-3}$ m

Radius of the eye, r = 4.25 x $10^{-3}$ m

∴ Area of the eye, A = $\pi .r^{2}$

= $3.14\times \left ( 4.25\times 10^{-3} \right )^{2}$

= $5.6\times 10^{-5} m^{2}$

Let $P_{min}$ be the minimum number of photons.

Therefore, $P_{min}$ = $I_{min}$ x A

= $5\times 10^{-13}$ x $5.6\times 10^{-5}$

= $2.8\times 10^{-17}$ W

Thus the minimum number of photons is given by

$N_{min}=P_{min}/E$

where E = $hc/\lambda$

= $\left (6.63\times 10^{-34}\times 3\times 10^{8} \right )/548\times 10^{-9}$

= $3.62\times 10^{-19} J$

Therefore, $N_{min}$ = $\frac{2.8\times 10^{-17}}{3.62\times 10^{-19}}$

= 77.34 photons per second

Thus, the minimum number of photons per second is 77.34

4 0

3 years ago

Can someone help me with 8 and 9 please

anyanavicka [17]

8. Genetic Code is <span>the nucleotide triplets of DNA and RNA molecules that carry genetic information in living cells, which is "language" for the genetic recipe book.</span>

9. No, the RNA has not undergone RNA processing yet. The AAC may be part of an intron--a non-coding sequence of RNA that is removed from the strand before exiting the nucleus and being translated into a protein.

8 0

3 years ago

How does Carbon cycle through earths systems?

levacccp [35]

Answer:

Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

Explanation:

8 0

3 years ago