Physics, 21.08.2019 05:40 ashanti93

How do the layers of the sun relate to energy movement and solar phenomena?

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Answer from: lina93

The center of the sun, called the core, is made of very dense gas, with temperatures reaching abuot 15 million degrees celsius. under such high temperatures, some hydrogen particles collide and combine to form helium in a process called fusion. this process releases energy that travels through the core by radiation.
energy radiates outward from the core, the next layer is called the radiative zone. energy from the core moves through this layer by radiation. temperatures in this layer aren't high enough for fusion to happen.
the next layer is the convection zone. in the convection zone, energy moves mainly by convection. rising currents of hot gas in the convection zone carry energy toward the sun surface.

Answer from: Quest

elly's long hair:

a. if the salon only takes cash, then this isn't the problem. it doesn't matter how much she has in her checking account. she can't get a haircut until she has the cash.

b. if she has overdraft protection, then there's no problem. she can go ahead and write a check that her account can't cover, then sometime later, pay the bank some outrageous usury for loaning her a few bucks for a few days, but with beautiful hair.

c. if elly has some principles, and doesn't want to write a bad check, then now she has a problem. her desire for the new hairstyle is in conflict with her honesty and integrity.

d. if the bank will not process a check she writes, then even if she had a million $$ in her account, she couldn't use any of it. the amount she has in her account is not the problem. and if i may suggest, she might as well close her checking account, and put the money where it'll work for her. it's not doing her a bit of good in a checking account, since she can't write any checks.

justin can't pay the full balance:

a. he can't even handle the credit limit he has now. under no circumstances should he ask for a higher limit.

b. he can ask for the grace period to be extended. but that's no solution, the bank will almost certainly refuse anyway, and there are much better options. he knew the rules of his credit card when he started using it.

c. he definitely should pay the interest on the balance, plus as much of the balance as he can cover at the same time.

d. he definitely should pay the minimum otherwise they could shut down his card. he should also pay as much more as he possibly can. he should also remember the awkward situation he's in, stop buying stuff on credit that he can't afford, and avoid adding any more debt.

i'd say that justin's best best option isn't on this list of choices. what he has to do: pay as much as he can at least the minimum payment plus as much more as he can and then avoid adding more debt.

Answer from: Quest

a and c

c is 100% but i am confused in a

For which optical devices does d sometimes have a positive value

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