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Why would a rat in the dessert have a longer loop of henle?
Why would a rat in the dessert have a longer loop of henle?
Why would a rat in the dessert have a longer loop of henle?
General Biology   irina   780   2   zzz   6 years ago
Calculate the current in a 12 volt battery that powers a single 30 ohms resistor?
Calculate the current in a 12 volt battery that powers a single 30 ohms resistor?
Calculate the current in a 12 volt battery that powers a single 30 ohms resistor?
Physics   irina   456   rjedlicka   6 years ago
Given Data Batt AH, UPS Capacity(KVA), Load Power(VA), & Batt no's or Batt Volt How to calculate Batt Backup t?
Given Data Batt AH, UPS Capacity(KVA), Load Power(VA), & Batt no's or Batt Volt How to calculate Batt Backup t?
Given Data Batt AH, UPS Capacity(KVA), Load Power(VA), & Batt no's or Batt Volt How to calculate Batt Backup t?
Physics   irina   331   zzz1090   6 years ago
Does anyone know how to calculate electricity costs for different appliances but using watts, amps etc?
Does anyone know how to calculate electricity costs for different appliances but using watts, amps etc?
Basically trying to find out what different appliances cost on a periodic basis.For example- -an appliance is a 1500 w unit, runs x amount of voltage, translated into how many kilowatt hours, times cost of kilowatt hours local electric company charges?
Physics   irina   470   4   RJW   6 years ago
A 5-W night-light is plugged into a 120-V circuit and operates continuously for 1 year. Calculate the followin?
A 5-W night-light is plugged into a 120-V circuit and operates continuously for 1 year. Calculate the followin?
A 5-W night-light is plugged into a 120-V circuit and operates continuously for 1 year. Calculate the following:

1.the current it draws,
2.the resistance of its filament,
3.the energy consumed in a year, and
4.the cost of its operation for one year at a rate of 15 cents/kWh.
Physics   irina   1723   Lexyz   6 years ago
Calculate Open Circuit Voltage?
Calculate Open Circuit Voltage?
Explain how to find the "open circuit voltage" of the battery.  You will explain in words (by explaining your equations) how you calculate the internal voltage of the battery.  Remember, you reader must be shown why Vb=Vm.

How do I do this?  I have to show a diagram as well.  What equation would I use?  The easiest way I know how to do this is use a voltmeter.
Physics   irina   376   2   rkearl27   6 years ago
Can i be an ER nurse right out of nursing school? (this is part of my other question i have posted as well)?
Can i be an ER nurse right out of nursing school? (this is part of my other question i have posted as well)?
Ill be done with nursing school in about 18 months, and i was not sure if i can be hired to work in the ED right out of school or will I need to work the floor for a while  before i can apply to the ED? Thanks
Nursing and Clinical   irina   865   4   grifin1978   6 years ago
AP chemistry studying please help?
AP chemistry studying please help?
Studying for the AP exam and can't figure out how to do these sorts of problems:

For a first order reaction with a rate constant k = 3.13 x 102 s-1, how long does it take for the concentration of the only reactant to become 40% of the original amount?
Academic Guidance   irina   613   fistpumporgy   6 years ago
How cool is Chemistry?
How cool is Chemistry?
I have reciently started my A-Levels and have chosen chemistry along with biology and french. I love all my subjects but chemistry is amazing!

I have reciently been thinking about going into a chemistry based career but dont know what the job prospects would be for me say if I were to study Chemistry with French?
or would I be better studying Pharmacy, as I have always seemed to wa
Academic Guidance   irina   544   2   Fisk71   6 years ago
what are some tipes for studying math?
what are some tipes for studying math?
hellow guys hope ya all doing good, i am kind of lost in math i want to get As in exams unfortunatly, i get B or C, i know most of people are good in math so if your one of the math geek please let me know how to become good in math and also what are some tips? i can do anything to learn math i just dont like my idiot professor i have no idea what the hek is he talking about but its
Academic Guidance   irina   513   2   lfh   6 years ago
If math and science are complex why should we expect God to be easy?
If math and science are complex why should we expect God to be easy?
I've seen a lot of questions put here on Y!A dealing with"If God is real why this?" or "I don't understand this so it must be untrue" but we study math and science in school for years. If their is a God wouldn't he be more complex then these things?

Wouldn't questioning his existence warrant more than a superficial glance?

What would happen if we treated other things as SOME (not
Academic Guidance   irina   949   9   smkt025   6 years ago
If you are good in math can you give me some advice?
If you are good in math can you give me some advice?
Like any tips or anything for basic and up?
Or is there something special you do before you study math?
Academic Guidance   irina   1423   10   lfh   6 years ago
What is genetic jargon and genetic crosses?
What is genetic jargon and genetic crosses?
What is genetic jargon and genetic crosses?
Genetics and Developmental Biology   irina   530   2   rjt6250   6 years ago
the second generation of an offspring from a genetic cross is called the ___ generation?
the second generation of an offspring from a genetic cross is called the ___ generation?
a) F-1 b)F-2 c)hybrid d)testcross d)none
Genetics and Developmental Biology   irina   2091   8   rkim12   6 years ago
How do you do a punnett square mating homologous pair vg and +?
How do you do a punnett square mating homologous pair vg and +?
In a crossing of Drosophila (fruit flies), I have a fly with a deformed wing (vg) which is mated with a fly with a normal wing (+). How would you do a punnett square for this?
Genetics and Developmental Biology   irina   637   rkoch   6 years ago
Explain why proteins are not filtered out of the blood in the glomerulus.?
Explain why proteins are not filtered out of the blood in the glomerulus.?
This is a question on my human anatomy homework and I have checked my notes, but I cannot find it. Can anyone help me out? Thanks.
Anatomy and Physiology   irina   465   smithman_j   6 years ago
what is the maximum depolarization voltage?
what is the maximum depolarization voltage?
This has to do with some anatomy homework and the depolarization of axon membrane.
Anatomy and Physiology   irina   578   smithstevee   6 years ago
Do Astronomers need a PhD in Physics to be well paid?
Do Astronomers need a PhD in Physics to be well paid?
I know we need a PhD in Astronomy! But in Physics do we need a PhD to be well paid or a Master Degree is Fine? And in Maths?
Academic Guidance   irina   690   smmoh4   6 years ago
How many electrons have been removed from the sphere to raise it to this potential?
How many electrons have been removed from the sphere to raise it to this potential?
An isolated aluminum sphere of radius 2.5 cm is at a potential of 400 V. How many electrons have been removed from the sphere to raise it to this potential?
Chemistry   irina   359   2   obb   6 years ago
What is the ion symbol for the atom that has 4 neutrons, 3 protons and 2 electrons?
What is the ion symbol for the atom that has 4 neutrons, 3 protons and 2 electrons?
What is the ion symbol for the atom that has 4 neutrons, 3 protons and 2 electrons?
Chemistry   irina   431   illsternog   6 years ago
What is an enzyme cascade and how does it work?
What is an enzyme cascade and how does it work?
I have a midterm on Wednesday in my Perception course and our professor told us that there would for sure be a question about the enzyme cascade. He isn't the best lecturer and so his thoughts were quite scattered when he was describing it to us in terms of how an enzyme cascade can explain how the isomerization of just one visual pigment molecule can activate an entire rod receptor
Cell Biology   irina   320   juliar33   6 years ago
How could I solve an equation surrounded by parentheses and a 0 as an exponent?
How could I solve an equation surrounded by parentheses and a 0 as an exponent?
For example, how would I solve an equation that looks like "(a^2)^0"?
Mathematics   irina   766   8   mkaplan92   6 years ago
Why can galapagos penguins survive in the galapogas islands, despite their cold-weather adaptations?
Why can galapagos penguins survive in the galapogas islands, despite their cold-weather adaptations?
Need about 3-4 reasons if possible, thank you!
Other   irina   745   3   buddhadog   6 years ago
An inhibitor tha permanently blinds to enzymes involved in cellular respiration?
An inhibitor tha permanently blinds to enzymes involved in cellular respiration?
A is involved in the regulationof cell metabolism
B is always made of protein
C completly hydrogenated
D monoglycerides
E triglycerides
Biochemistry   irina   537   jules78245   6 years ago
To harden margarine, some of the vegtable oils are hydrogenated. How is vegtable oil hydrogenated?
To harden margarine, some of the vegtable oils are hydrogenated. How is vegtable oil hydrogenated?
To harden margarine, some of the vegtable oils are hydrogenated. How is vegtable oil hydrogenated?
Biochemistry   irina   381   2   tommyt_   6 years ago
why is photosynthesis referred to as a biochemical pathway?
why is photosynthesis referred to as a biochemical pathway?
why is photosynthesis referred to as a biochemical pathway?
Biochemistry   irina   1413   tomtom1   6 years ago
Why is photosyntesis referred to as a biochemical pathway?
Why is photosyntesis referred to as a biochemical pathway?
Why is photosyntesis referred to as a biochemical pathway?
Biochemistry   irina   450   jules78245   6 years ago
Identify each of following as occurring either in the light reaction of photosynthesis or during carbon fix?
Identify each of following as occurring either in the light reaction of photosynthesis or during carbon fix?
a. Sunlight & water are used to produce ATP & NADPH.
b. ATP, NADPH & carbon dioxide are used to produce glucose.
c. PGAL is formed.
d. Water is split to produce hydrogen ions & oxygen.
There are two of each.
THERE ARE 2 ANSWERS TO EACH.
Zoology and Botany   irina   420   3   davashkai   6 years ago
How many carbons enter each turn of Calvin cycle(light-independent cycle)?
How many carbons enter each turn of Calvin cycle(light-independent cycle)?
I know 3 carbons combine with 6 RuBP, but do all the 3 carbons enter the Calvin cycle at the same time? or they enter 1 by 1? Anyways, I just want to clarify how many carbons enter each turn of Calvin cycle. Thanks!
Zoology and Botany   irina   601   mig9399   6 years ago
what is the sine law used for?
what is the sine law used for?
what are u trying to find when using the sine law?
Mathematics   irina   1201   3   riojamsushi   6 years ago
What structures are contained in eukaryote cells that are not present in prokaryotic cells?
What structures are contained in eukaryote cells that are not present in prokaryotic cells?
What structures are contained in eukaryote cells that are not present in prokaryotic cells?
General Biology   irina   432   fivegrays   6 years ago
Is the only difference between ATP energy and ADP that ADP has one less phosphate?
Is the only difference between ATP energy and ADP that ADP has one less phosphate?
Also Is it true that ADP binds with Phosphate to create ATP?
thank you
Cell Biology   irina   479   4   rja5200   6 years ago
pepsin released into the stomach to digest protein.since stomach wall is protein why it cant be digested too?
pepsin released into the stomach to digest protein.since stomach wall is protein why it cant be digested too?
pepsin is an enzyme released into the stomach to digest protein. since stomach wall is made of protein, why is it not digested too?
Biochemistry   irina   1434   6   buddhadog   6 years ago
Does adding a protease enzyme to isolate DNA affect chromosome structure?
Does adding a protease enzyme to isolate DNA affect chromosome structure?
Does adding a protease enzyme to isolate DNA affect chromosome structure?
Biochemistry   irina   1275   smmoh4   6 years ago
1) A 40% saline solution is to be mixed with 60% saline solution to obtain 8 liters of a 55% saline solution..
1) A 40% saline solution is to be mixed with 60% saline solution to obtain 8 liters of a 55% saline solution..
How many liters of each solution should be used??

2) Jack invested $40,00, part at 4% and the rest at 6 %. The annual return is $1740. How much money is invested at each rate??

3) Samuel has some quarters and some nickels. If he has nine more than twice as many nickels as quarters, and the value of his coins is $5.35, how many nickels and quarters does he have?
Cell Biology   irina   500   2   tony   6 years ago
How much water sould be mixed with 7cups of salt to make 12% saline solution? ?
How much water sould be mixed with 7cups of salt to make 12% saline solution? ?
I got the answer of 58 and 1/3 cups of water. I don't understand how that is wrong. Pleas help!
Cell Biology   irina   341   toni_roscas   6 years ago
When a cell with 0.9% saline solution in the cytoplasm is placed into an environment of distilled water...?
When a cell with 0.9% saline solution in the cytoplasm is placed into an environment of distilled water...?
I need some help with this question.
When a cell with 0.9% saline solution in the cytoplasm is placed into an environment
of distilled water, the cells would ______?
Cell Biology   irina   509   3   buffalobills   6 years ago
What is the difference in the locations between mRNA and tRNA?
What is the difference in the locations between mRNA and tRNA?
Thank you.
Cell Biology   irina   216   2   davesch   6 years ago
What is its complimentary mRNA nucleotide sequence to a short chain of DNA?
What is its complimentary mRNA nucleotide sequence to a short chain of DNA?
Hi,
A short chain of DNA has the nucleotide sequence ATA CCG.  What is its complimentary mRNA nucleotide sequence?

How do I find the answer to the above question?  Could someone please explain to me what base pairing rules should be applied?  

Thank you in advance for your assistance, I really appreciate it!
Cell Biology   irina   445   4   midnightxxmal   6 years ago
Why must mRNA copies be made from DNA instead of DNA just doing the work itself?
Why must mRNA copies be made from DNA instead of DNA just doing the work itself?
Why must mRNA copies be made from DNA instead of DNA just doing the work itself? can you answer that?
Cell Biology   irina   556   2   Mig.Dela7   6 years ago
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