Please explain how HDFS provides redundancy for stored dataSolutionHDF.docx
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Please explain how HDFS provides redundancy for stored data Solution HDFS is designed to reliably store very large files across machines in a large cluster. It stores each file as a sequence of blocks; all blocks in a file except the last block are the same size. The blocks of a file are replicated for fault tolerance. The block size and replication factor are configurable per file. An application can specify the number of replicas of a file. The replication factor can be specified at file creation time and can be changed later. Files in HDFS are write-once and have strictly one writer at any time. The NameNode makes all decisions regarding replication of blocks. HDFS uses rack-aware replica placement policy. In default configuration there are total 3 copies of a datablock on HDFS, 2 copies are stored on datanodes on same rack and 3rd copy on a different rack. .
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Please help with the following- True or False On an H-R diagram- OB as.docx
Please help with the following.
True or False On an H-R diagram, OB association stars are found between the birthline and the main sequence. T Stars convert hydrogen to helium through a series of complex chemical reactions.T The Coulomb repulsion in the 1st step of the CNO cycle requires a minimum temperature of 16 million K for fusion to occur. T The Sun produces 10% of its energy by the carbon nitrogen oxygen cycle. T Helium-3 is produced in the 2nd step of the proton-proton chain. T 1. 2. 3. 4. 5.
Solution
1) False
OB associations are groups of stars born together but not bound to each other by their mutual gravity.
T Tauri Stars
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.
Please help! Let phi- R rightarrow S be a surjective homomorphism from.docx
Please help!
Let phi: R rightarrow S be a surjective homomorphism from the ring R to the ring S. Prove that if T is a subring of R, then the set W= {b S such that b = phi (c) for some c T } is a subring of S. [Be specific of how and where you use that T is a subring of R.]
Solution
Let a, b in W. Then a= phi(r) for some r in T and b = phi(t) for some t in T. Now to show a+b is in W, notice that a+b = phi(r)+phi(t)=phi(r+t). Since T is a subring and r and t are in T, then r+t is in T too. So a+b is in W. To show a*b is in W, notice that since T is a subring, r*t is in W. So a*b = phi(r)phi(t)=phi(rt). SInce rt is in T, a*b is inW. To show that -a is in W, notice that since T is a subring, if r is in T, so is -r. So, phi(-r) = -phi(r) = -a. Hence -a is in W. Finally, since T is a subring, 0 is in T. So 0 = phi(0), so 0 is in W too. By the subgring criterion, W is a subring. Please rate :).
.
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Please help with the following- True or False On an H-R diagram- OB as.docx
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True or False On an H-R diagram, OB association stars are found between the birthline and the main sequence. T Stars convert hydrogen to helium through a series of complex chemical reactions.T The Coulomb repulsion in the 1st step of the CNO cycle requires a minimum temperature of 16 million K for fusion to occur. T The Sun produces 10% of its energy by the carbon nitrogen oxygen cycle. T Helium-3 is produced in the 2nd step of the proton-proton chain. T 1. 2. 3. 4. 5.
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Let phi: R rightarrow S be a surjective homomorphism from the ring R to the ring S. Prove that if T is a subring of R, then the set W= {b S such that b = phi (c) for some c T } is a subring of S. [Be specific of how and where you use that T is a subring of R.]
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Please help me- I understand that iron(III) chloride is the correct na.docx
Please help me. I understand that iron(III) chloride is the correct name for FeCl3 . However I am confused. The subscript is clearly next to the chloride. Yet the Roman numeral three is next to the iron...
PartA Which one of the following is the correct name for FeCl3? View Available Hint(s) iron trichloride iron chloride iron(Ill) chloride iron chlorine Previous Answers Correct The iron ion in this compound carries a +3 charge, and that needs to be sho Provide Feedback 10
Solution
FeCl3 means three -Cl atoms are attached to Fe atom.
Each -Cl carries -1 charge so the charge for three -Cl are -3.
so in order to balance the negative charge, the charge on Fe should be +3 to get a neutral FeCl3 complex.
so the charge on Fe is +3 and it is represented in brackets next to Fe and the name is iron(III)chloride
.
Please help me with these Parent companies assume an important role o.docx
Please help me with these
Parent companies assume an important role on the joint Venture or alliance\'s board. Which of the following is not among the pivotal responsibilities of the board\'s members. Reviewing performance. Ensuring that employment practices do not impinge on cultural norms. Overseeing capital allocation decisions. Monitoring risk management practices and policies. Which of the following can inhibit a firm\'s ability to learn from the alliance? The interface manager is not the target user of the knowledge, The firm does not have an information system to diffuse the knowledge acquired. The firm does not share its knowledge with the other partner. The alliance knowledge is not codified.
Solution
16] OPTION-B
17] OPTION-D
.
Please help me solve this I already asked this question and someone so.docx
Please help me solve this I already asked this question and someone solved it incorrectly. Thank you.
Solution
given,
concentration of NH 4 NO 2 = 1.10 M
in volume = 2.20 L
step1
thus, moles of NH 4 NO 2 = 1.10 x 2.20 = 2.42 moles
step2
1 mole of NH 4 NO 2 can form 1 mol of N 2
2.42 moles of NH 4 NO 2 can form 2.42 moles of N 2
step3
pressure is only due to N 2 gas
p = nRT / v
p = 2.42 x 0.0821 x 298 / 2.20
p = 26.91 atm
step4
pressure in 10 L
p = nRT / v
p = 2.42 x 0.0821 x 25 /10
p = 5.92 atm
step5
change in pressure = 26.91 - 5.92 = 20.99 atm or (21 atm)
.
Please give me two thoughtful paragraphs for two of the following ques.docx
The CEO of Baldwin Company reported on 4 financial ratios to analysts instead of the 11 ratios prepared by the controller. Reporting fewer ratios allows the CEO to selectively disclose information that paints the company in a positive light. However, this risks misleading analysts and investors by omitting other important metrics, and could damage the company's reputation if seen as an attempt to hide negative financial details. The controller, who prepared all 11 ratios for the board, should advise caution to prevent legal and credibility issues from selective disclosure of only favorable information.
please give an example of the best and worst GUI you have seen and rea.docx
please give an example of the best and worst GUI you have seen and reasons why you think it was good/bad. How would you improve the bad example? Please provide screenshots or links if possible.
Solution
gui:graphical user interface
Blinkee.com: it is a site which contains a black color on the background and and the letters are two small to read and also the pictures all are animated.animation to certain extent is ok but if all the things are animated then it cannot look effective. there was two frames which is empty and the other very congested.
the good gui must contain atleast the fallowing things
easy to navigate
flexibility
usage of proper colors in the website
links must be properly done
best look and feel appearence
accuracy of the relavent topic in the particular gui
best usage of animation
.
please explain tooSolutionVHDL (Very High Speed IC Hardware descriptio.docx
please explain too
Solution
VHDL (Very High Speed IC Hardware description Language) is one of the standard hardware description language used to design digital systems. VHDL can be used to design the lowest level (gate level) of a digital system to the highest level (VLSI module). VHDL though being a rigid language with a standard set of rules allows the designer to use different methods of design giving different perspectives to the digital system. Other than VHDL there are many hardware description languages available in the market for the digital designers such as Verilog, ABEL, PALASM, CUPL, and etc but VHDL and Verilog are the most widely used HDLs. The major difference between hardware description programming languages and others is the integration of time. Timing specifications are used to incorporate propagation delays present in the system
.
Please describe cash flows from investing activities- and provide thre.docx
Please describe cash flows from investing activities, and provide three examples of cash inflows and three examples of cash outflows.
for discussion
*update don\'t answer it posted twice and points will not be awarded. thank you*
Solution
Cash flow from investment activities deals with either cash inflow or cash outflow due to investment decisions taken up by the company. It deals with acquiring or selling off companies long term / fixed assets.
Three examples of cash outflow from investment activites:
1. Buying Land or investment in furnitutes / fixtures
2. investment in stocks and debentures of other companies
3. Buying Another plant or Machinery
Three Examples of Cash inflows from investment activities.
1. Selling of old machineries
2. Selling of subsidiaries
3. Selling technology know -how
.
Please clear hand written for the answersSolution15- (c) An increase i.docx
Please clear hand written for the answers
Solution
15.
(c) An increase in temperature favours the formaiton of more H2S as the given reaction is endothermic. and in the equation heat ( deltaH ) is added at reactants side which means the forward reaction is endothermic in nature.
16.
(a) Shifts to a right
Increase in temperature favours endothermic reactions and it is given that the forward reaction is endothermic.
17.
(a) Shifts to the right
Decrease in temperature favours exothermic reaction and it is given that the forward reaction is exothermic.
18.
M1 * V1 / n1 = M2 * V2 / n2
M1 * 25.00 / 1= 0.102 * 28.52 / 1
M1 = Molarity of NaOH = 0.116 M
(a)
.
please answer the following- thanks!!! Question 3 (1 point) 6 Rutherfo.docx
please answer the following, thanks!!!
Question 3 (1 point) 6 Rutherford\'s experiment was important because it showed that: . The mass of the atom is uniformly distributed throughout the atom An atom is mostly empty space Radioactive elements give off alpha particles Gold foil can be made to be only a few atoms thick. A zinc sulfide screen scintillates when struck by a charged particle Save
Solution
Rutherford experimet showed that
An atom is mostly empty space
( this conclusion indicates atom has mass concentrated at center of atom whose volume is small compared to atom . center area is called nucleus contains protons and neutrons , while electrons lie around nucleus.)
.
Please answer questions 1-4- thank you!Solution1- Acids are the conpou.docx
Please answer questions 1-4, thank you!
Solution
1. Acids are the conpounds which give H+ ions in the aquous solution. Bases give OH- ions innthe aquous solutions.
Acids are the proton donors and bases are the proton acceptors.
2. Litmus paper is the most common indicator used in the labs. Litmus turns green ti basic and red to acidic. Other is methyl ornage shows pink in acidic medium and shows yellow in basic and phenophthaline etc.
3. HClO is an acid it can give H+ ions i.e proton.
Na2CO3 is formed by H2CO3 and NaOH. So it is a neutrilisation of weak acid with strong base so it will be a basic salt.
H2O is neutral.
H3BO3 is boric acid. As the name suggests its an acid it can donate H+.
4. Anything less than pH=7 is acidic uptill 1.
pH=7 is neutral
pH>7 is basic uptill 14
.
Please answer in a clear manner to get the points- Thanks for the help.docx
Please answer in a clear manner to get the points. Thanks for the help.
1. What are the number of links and number of joints of each planar linkage shown below? Determine the mobility of each mechanism
Solution
the nof degrees of freedom = no of variables - no of constraint
each body has 3 variables ie x y and roration and each joint(revolute and translational) corresponds to 2 constraint equation and high pair forms 1 constraint
prob1. number of bodies except ground =9
number of revolute joints =7
number of translatioanl joints= 1
mobility = 3*9 -(2*7+2*1) =11
2. number of bodies except ground =7
number of revolute joints =8
number of translatioanl joints= 2
number of higher pair= 1
mobility =3*7 - (8*2+2*2+1)
=1
.
Please answer bothSolution18- Nature chose polyamides to form proteins.docx
Nature chose polyamides to form proteins because polyamides are made through condensation reactions of amino acids that eliminate water molecules. These protein structures have chains stabilized by hydrogen bonding between nitrogen atoms on one chain and oxygen atoms from the carbonyl groups on another chain. This hydrogen bonding stabilizes the protein structure in a way that is not possible with esters. Nature selects monosubstituted amides over disubstituted amides for proteins due to disubstitution increasing steric effects that destabilize the protein chains and disrupt important hydrogen bonding between chains, which stabilize the primary, secondary, and quaternary protein structures.
Phe following GC data was obtained on a Polar column- The 10 possible.docx
Phe following GC data was obtained on a Polar column. The 10 possible organie compounds are listed in the table. Based on your knowledge orga Gc, label each of the peaks as 1 through 10, based on their Retention Times and explain why. (20 points) 1Acetone 2 Pentane 3 Propanol 4 Methyl ethyl ketone 5 Hexane 6 Butanol 7 3-Pentanone 8 Heptane 9 Pentanol 10 Octane ? 8 10 12 14 16 18 2 4 Time (min)
Solution
Peaks from left to right:
Peak 1: pentane( lowest retention time)
Peak 2: hexane
Peak 3: heptane
Peak 4: octane
Peak 5: acetone
Peak 6: methyl ethyl ketone
Peak 7: pentanone (retention time 4 minutes)
Peak 8: propanol (4.5 minutes)
Peak 9: butanol (9.5 minutes)
Peak 10: pentanol (highest retention time; 18 minutes)
.
Patients in shock experience decreased delivery of O2 to tissues- decr.docx
Patients in shock experience decreased delivery of O2 to tissues, decreased activity of the pyruvate dehydrogenase complex, and increased anaerobic metabolism. Excess pyruvate is converted to lactate, which accumulated in tissues and in the blood, causing lactic acidosis. Since O2 is not a reactant or product of the citric acid cycle, why do low levels of O2 decrease the activity of the pyruvate dehydrogenase complex?
Solution
pyruvate dehydrogenase complex is found in only mitochondria ( we know that mitochondria is the power house of the cell as well as the cell respiration will takes place means what ever the enzymes present in mitochondria they are more active at high oxygen level ) this enzyme requires five cofactors namely TPP,lipoamide,FAD,coenzyme A,and NAD +
the conversion of pyruvate to acetyl CoA finished when reduced lipoamide is converted to oxidized lipamide
.
Perform an analysis of the social - demographic- technological- econom.docx
Perform an analysis of the social / demographic, technological, economic, environmental / geographic, and political/legal / governmental segments to understand the general environment facing Union Pacific.
Solution
Social/demographic
The social demographic segment reflects the population size, the age structure, the ethic and income mix, and the geographic distribution. The Great Lakes Corporation employs over 3700 people. (1) The population for Indianapolis, Indiana where the Great Lakes Corporation affects has increased at a rate of 6.6% from 2000 to 2010. (2)
Technological
The Great Lakes Corporation will need to increase or expand its technology concerning the use of leaded gasoline. Technology can be costly when it comes to trying to come up with ways to eliminating a product that is harmful to consumers. Even though the corporation has had time to study what to do with the lead gasoline, there doesn
.
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Chapter 2
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Chapter 3
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Please explain how HDFS provides redundancy for stored dataSolutionHDF.docx
- 1. Please explain how HDFS provides redundancy for stored data Solution HDFS is designed to reliably store very large files across machines in a large cluster. It stores each file as a sequence of blocks; all blocks in a file except the last block are the same size. The blocks of a file are replicated for fault tolerance. The block size and replication factor are configurable per file. An application can specify the number of replicas of a file. The replication factor can be specified at file creation time and can be changed later. Files in HDFS are write- once and have strictly one writer at any time. The NameNode makes all decisions regarding replication of blocks. HDFS uses rack-aware replica placement policy. In default configuration there are total 3 copies of a datablock on HDFS, 2 copies are stored on datanodes on same rack and 3rd copy on a different rack.