Tuesday
October 21, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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Science
What is oxygen made of
Thursday, June 19, 2014 at 12:38pm

engineering science
The mass of a truck is 5000kg and it is stationary on an incline plane making an angle of 16 with the horizontal. The coefficient of friction
Thursday, June 19, 2014 at 2:54am

Maths literacy,history,life science,english,xhosa,life orantation,geography.
I'am doing grade 11 now and when i passed grd 12 next year.i want to know what caree is good for my subjects ,because i don't know what caree should i take.
Wednesday, June 18, 2014 at 5:27pm

science
Imagine that you have a rectangular swimming pool, but you have no idea how deep it is. You know that the pool has a volume of 216 m3 . You measured the dimensions of the pool and found that it is 15 m long and 6 m wide
Wednesday, June 18, 2014 at 9:30am

Physical Science
is the work needed to bring a car's speed from 0 to 10 km/h less than. qual to. or more than the work needed to bring its speed from 10 to 20 km/h? in the amounts of work are different, what is the ratio between them?
Tuesday, June 17, 2014 at 2:10pm

Science
1. Why is ice a faster surface for sleddikng than snow? a. Ice is flatter than snow. B. Ice is colder than snow. C. Ice provides less friction. D. Ice has less mass than snow. My answer- A
Tuesday, June 17, 2014 at 11:57am

computer
What are the steps in formatting texts?
Tuesday, June 17, 2014 at 11:40am

science
A force of 20 n gives a ball an acceleration of 4.0 m/s3 on a lever frictionless surface. what is the mass of the ball?
Tuesday, June 17, 2014 at 11:39am

Science (Chemistry)
4. A Beer’s Law plot was prepared for the reaction A(aq) + B(aq) AB(aq), plotting absorption over AB(aq) concentration. The linear equation for this plot was y = 78.3x. A solution was prepared by mixing 10.0mL of 0.100M A with 5.00mL of 0.100M B and adding enough ...
Monday, June 16, 2014 at 7:58pm

Statistics (Check Answer)
Hi can someone check my answer. I'm not sure why the computer keeps marking it wrong. **Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the finite ...
Monday, June 16, 2014 at 6:50pm

science:biology
what does the following carry. 1.artery 2.vein 3.pulmonary artery. 4.pulmonary vein 5.right auricle 6.right ventricle. 7.left auricle 8.left ventricle
Monday, June 16, 2014 at 12:22pm

Science
A 50-kg object moving at 12 m/s has a momentum of 600 kg ´ g m/s. What is the mass of an object, moving at 4 m/s that has the same momentum?
Monday, June 16, 2014 at 10:27am

algebra
computer manufacturing company would like to come up with a new laptop computer such that its monitor is 80 a square inches smaller than the present ones. Suppose the length of the monitor of the larger computer is 5 inches longer than its width and the area of the smaller ...
Monday, June 16, 2014 at 8:58am

Science
A rod of length L=1.80m is mounted to a wheel (solid cylinder) of radius R=8.00cm. A massless rope is wound on the wheel, and then connects to a block of mass m=0.250kg. The mass is released from rest and allowed to fall. 1. Find the tension in the rope. 2. How long does it ...
Monday, June 16, 2014 at 6:45am

science
LIFE
Monday, June 16, 2014 at 4:40am

com 200
Kyle has struggled to feel comfortable in science classes with labs since his junior year of high school, when a solution he was working with ignited. He was always cautious with chemicals but his lab partner that year enjoyed seeing what would happen when he mixed random ...
Sunday, June 15, 2014 at 11:53am

science
what is the difference between erosion transport and deposition????????????????????
Sunday, June 15, 2014 at 10:21am

Science
I REALLY REALLY NEED HELP SO 1.I need to do an essay asking you (me)to explain what is the difference between erosion,transport,and deposition?... 2.another essay asking me to explain you (me) to explain the destructive and positive effects of a volcanic erupyion?... 3.a short...
Saturday, June 14, 2014 at 4:24pm

Science
What form of pollution, if any, does each energy source cause? How does the economy influence energy source choices? How does location influence energy source choices?
Friday, June 13, 2014 at 8:42pm

science (check please (:)
Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers (the part of the root that people eat) of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato ...
Friday, June 13, 2014 at 5:56pm

science
PLEASE HELP I am trying to unscramble this word eyspoopcsadhohgogtasodou
Friday, June 13, 2014 at 11:57am

science (CHECK plz)
How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual...
Friday, June 13, 2014 at 11:48am

History,Maths Lit,life science and Geography
What courses can i do with these subjects??
Friday, June 13, 2014 at 8:01am

science
Calculate the mass% of different element present in H2SO4. Also show the solution.
Friday, June 13, 2014 at 2:36am

science (check plz)
1)When evolution was first proposed, which of the following was used as evidence to support the idea? A)observations of nature B)laboratory experiments C)extensive fossil collections*** D)genetic sequences
Thursday, June 12, 2014 at 11:35pm

Science
What is a stimulus?
Thursday, June 12, 2014 at 7:18pm

science (check please (:)
suppose a species od flowering plant produces primarily blue flowers but also some very pale blue (almost white) flowers the blue color attracts pollinators but the white color does not herbivores feed on this plant and locate it by its blue flower color the white flower color...
Thursday, June 12, 2014 at 6:34pm

science cant figure it out
4 What do scientists now think about the pace of evolutionary change? A Gradualism best explains the pace of evolutionary change. B Punctuated equilibrium best explains the pace of evolutionary change C A combination of both gradualism and punctuated equilibrium explains the ...
Thursday, June 12, 2014 at 3:02pm

science (check!)
Darwin assumed that evolutionary change was always slow and gradual. What was the first evidence that suggested evolutionary change might happen fast sometimes? a. homologous structures b. fossils c. reproduction rates*****? d. DNA sequences
Thursday, June 12, 2014 at 2:46pm

Science(electric circuits)
What is the conclusion about current in a parallel electric circuit
Thursday, June 12, 2014 at 1:56pm

physics
A 200 – W computer power supply is on 10 hours per day. If the cost of electricity is $0.15/kWh, what is the cost (to the nearest dollar) to run the computer every day for a year (365 days)?
Thursday, June 12, 2014 at 12:51pm

Science(electric circuits)
What is the conclusion about the potential difference(voltmeter readings) in a parallel electric circuit
Thursday, June 12, 2014 at 12:38pm

physical science(chemistry change)
Experiment of tiratic oxilic acid wih mass 4,5g and volume of 25ml,nd concentration of 0,05mol.dm.3 against volume of 14ml and 1,79mol.dm3 sodium hydoxide to determine the concentration of sodium hydroxide,,show all the working,aim,results,observation of result,discussion
Thursday, June 12, 2014 at 12:05pm

physical science(chemistry change)
Experiment of tiratic oxilic acid wih mass 4,5g and volume of 25ml,nd concentration of 0,05mol.dm.3 against volume of 14ml and 1,79mol.dm3 sodium hydoxide to determine the concentration of sodium hydroxide,,
Thursday, June 12, 2014 at 12:04pm

Science(electric circuits)
What is the conclusion about the potential difference(voltmeter readings) in a series electric circuit
Thursday, June 12, 2014 at 11:41am

science-chemistry
Calculate the number of moles of solute present in 450. g of an aqueous NaCl solution that is 0.565 % NaCl by weight
Thursday, June 12, 2014 at 11:11am

Science(electric circuits)
What happaned in the series electric circuit with the one bulb disconnected?please Explain
Thursday, June 12, 2014 at 10:35am

Science(electric circuits)
What is the conclusion about current in a series electric circuit
Thursday, June 12, 2014 at 10:10am

science (help)
What environmental pressures in the past do you think were most important in shaping the human species as it exists today?
Thursday, June 12, 2014 at 10:05am

intro to computer
Search: Your boss is very skeptical about the idea of storing his files up in the cloud rather than on a local storage drive. He asks you to give him the various advantages of cloud storage. Which of the selections below would not be a reason you give him? A. He won’t ...
Thursday, June 12, 2014 at 4:13am

Social Science
Name At least 10 sociologist together with their works
Wednesday, June 11, 2014 at 10:20pm

Science
What is the difference between conserving energy and energy efficiency? What are 5 benefits of conserving energy?
Wednesday, June 11, 2014 at 7:58pm

Keith
The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping. Assume that the number of hours a worker spends doing holiday shopping on an office computer follows an ...
Wednesday, June 11, 2014 at 6:54pm

physical science
Electrons are emitted from a conductor when the conductor is A. subjected to a small voltage. B. exposed to weak light. C. bombarded by high-speed electrons. D. cooled rapidly.
Wednesday, June 11, 2014 at 6:18pm

physical science
When an electron is displaced in a semiconductor, the hole that's left behind is A. attracted to the negative terminal of the voltage source. B. attracted to the anode of the voltage source. C. incapable of carrying a charge. D. considered and impurity in the crystal.
Wednesday, June 11, 2014 at 6:15pm

Econometrics
Hello I have this econometrics question that I have to solve without computer. (True model) yi = B0 + B1x1i + B2x2i + B3x3i + ui (Regression model) ^yi = 13.16 - 0.052(x1i - x21) + 0.2x3i SST = 1833 R^2 = known R^2 (bar) = known n = known with the standard errors being ...
Tuesday, June 10, 2014 at 10:20pm

Statistics
Can someone please help me answer these questions? I have tried every method I know and the computer still keeps marking the answers as incorrect. Thanks for the help! 1) If the number of 18-34 year olds sampled is equal to the value identified in part "a"(value=157...
Tuesday, June 10, 2014 at 6:08pm

Computer programming?
What is jsp structures regrading to computer programming?
Tuesday, June 10, 2014 at 2:47am

Science
The air pressure on Pikes Peak in Colorado is approximately 600 millibars. What is the relationship between air pressure at the top of Pikes Peak and at sea level, where air pressure is 1013 millibars?
Tuesday, June 10, 2014 at 1:23am

Computer Science!!!! Help!!!
The book is not doing anything for me. Anyone know where I can find step by step tutorial of this? Specifically for Visual Basic 2012? And not just a simplified version, I mean EXACTLY how to do this. I have been looking through YouTube, my textbook (An Introduction to ...
Monday, June 9, 2014 at 7:40pm

science
A uniform disk with radius 0.320m and mass 28.0kg rotates in a horizontal plane on a frictionless vertical axle that passes through the center of the disk. The angle through which the disk has turned varies with time according to è(t)= (1.20rad/s)t + (8.70rad/s^2)t^2 my...
Monday, June 9, 2014 at 2:04pm

Engineering science
a 50kg mass is suspended from a spring, causing it to extend by 30mm. calceolate the spring stiffness? The mass is then pulled down a distance of 90mm and released. calculate the frequency of the resulting motion, assuming that this is simple harmonic, calculate the velocity ...
Monday, June 9, 2014 at 1:18pm

science
what is the importance of solid solutions and liquid solutions found at home
Monday, June 9, 2014 at 10:22am

Lea408
can someone please tell me if I am right Like optical scanners, capacitance fingerprint scanners generate an image of the ridges and valleys that make up a fingerprint. But instead of sensing the print using light, the capacitors use electrical current. (Points : 1) True False...
Sunday, June 8, 2014 at 11:00pm

science
calculate the mass of Cuso4.5H2O required to prepare 500 cm3 of a 0.400 m/dm-3 solution
Sunday, June 8, 2014 at 5:56am

science (Eating and allergies)
Well, can people be allergic to seeds? Recently I have been throwing up after eating. I realised everything causing my sickness was seeds, but I feel like no one else has this. I've eaten tomatoes ( I don't like them but it was in my mum's pasta sauce) and the ...
Sunday, June 8, 2014 at 4:29am

Science - chemistry
The osmotic pressure of a solution of MgCl2 is 5.43 atm at 25 oC. How much of the salt is dissolved in 250.0 ml of water?
Sunday, June 8, 2014 at 3:14am

Science - chemistry
The SO2 present in air is mainly responsible for the phenomenon of acid rain. The concentration of SO2 can be determined by titration against a permanganate solution of known concentration as follows: SO2 + MnO4^-1 -> SO4^-2 + Mn2+ (unbalanced) Balance the equation showing ...
Sunday, June 8, 2014 at 3:03am

physical science
A solution that contains a large amount of salt and a small amount of water is said to be a __________ solution. A. dilute B. unsaturated C. concentrated D. saturated
Saturday, June 7, 2014 at 8:43pm

Science
2.38g of black copper oxide is completely reduced by hydrogen to give copper and water. What are the masses of copper and water
Saturday, June 7, 2014 at 5:40pm

Science
2. Two identical masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other? (1 point) The faster object has the same kinetic energy as the slower object. The faster object has less ...
Saturday, June 7, 2014 at 5:10pm

science
The rest mass of a particle is 10^-24kg.It is moving with a velocity of 1.8*10^18m/s. Calculate its mass when it is in motion.
Saturday, June 7, 2014 at 2:20pm

Science
Classify each of the following as examples of kinetic or potential energy. a) a car driving along a level road. b) an elastic band is stretched to twice its normal length c) a book is at rest on the top shelf of a bookcase d) a lightning bolt produces thunder that travels at ...
Friday, June 6, 2014 at 8:13pm

political science
What institutional factors lead to a slow legislative process? Is the process too slow? If so, what can be done to speed it up?
Friday, June 6, 2014 at 6:47pm

science
10. Which soil layer contains the most humus? (1 point) A horizon B horizon C horizon D horizon its the O horizon, i know this. But i guess it wants you to tell which is closest 14. Which of the following usually causes creep? (1 point) volcanic activity freezing and thawing ...
Friday, June 6, 2014 at 6:45pm

Science
a)How much work is required to lift a 35-kg object from the ground 3.0 m into the air? b) How much gravitational potential energy did this object gain?
Friday, June 6, 2014 at 5:58pm

Science
Calculate the hydroxide ion of a solution of almond extracted of PH 3.8
Friday, June 6, 2014 at 5:43pm

Science
Ms. Sue please help. 8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point) increasing the slope of the ramp reducing the friction between the wagon wheels reducing the length of the wagon handle increasing the friction between the wagon ...
Friday, June 6, 2014 at 3:52pm

Science - chemistry
Calculate the volume of 0.05 M NaOH which must be added to 100 cm3 of 0.05 M methanoic acid to obtain a buffer of pH 4.23. (Ka for methanoic acid = 1.77 x 10-4)
Friday, June 6, 2014 at 10:11am

Science - chemistry
Calculate the pH of a solution prepared by adding 36 cm3 of 0.15 M methanoic acid to 27 cm3 of 0.20 M NaOH. (Ka for methanoic acid = 1.77 x 10-4)
Friday, June 6, 2014 at 9:50am

Science
WHY IS fecl2 formed instead of fecl3 when iron reacts with dilute hydrochloric acid?
Friday, June 6, 2014 at 5:25am

physical science
When the temperature of the air is 25 degrees Celsius, the velocity of a sound wave traveling through the air is approximately A. 332 m/s B. 320 m/s C. 357 m/s D. 347 m/s
Thursday, June 5, 2014 at 11:18pm

science pls help asap!!!
Which of the following statements about continental glacial movement is correct? A. continental glaciers can only flow uphill b. continental glaciers can flow in all directions*** c. continental glaciers can only flow downhill d. continental glaciers do not flow at all. A ...
Thursday, June 5, 2014 at 8:46pm

Science
Identify the benefits that your space mission might provide for modern society. Explore the possibility of connecting your space mission with satellites that are already gathering information as they orbit Earth. I don't understand what does this mean?
Thursday, June 5, 2014 at 6:23pm

Science
Calculate the work done in each of the following situations. a) A horse pulls a wagon with a force of 1200 N and moves it 15 m. b) A cable lifts an elevator 16 m by using a cable with a tension force of 2500 N.
Thursday, June 5, 2014 at 6:17pm

science 1 question!!!
1. How are continental glaciers different from valley glaciers? (1 point) Valley glaciers can flow in all directions as they move, while continental glaciers move down slopes already cut by rivers. Continental glaciers flow in all directions as they move, while valley glaciers...
Thursday, June 5, 2014 at 5:50pm

science
When you do work to lift an object, what form of energy does the object gain
Thursday, June 5, 2014 at 5:42pm

Earth Science
Hello! I try to do my homework to the best of my ability. I want to make sure that my answers are correct. My answers will be (*). Please help me if you can.... 1. _______ was the first person to propose the idea of moving continents as a scientific hypothesis. A. Antonio ...
Thursday, June 5, 2014 at 12:43pm

science
find the mole fraction of sodium in 25% by massof sodium amalgum
Thursday, June 5, 2014 at 6:59am

science
An unsecured astronaut is floating in deep space. He switches on a hand held drill. The drill bit begins rotating clockwise with high angular velocity. Describe what happens to the astronaut- drill system and explain why.
Thursday, June 5, 2014 at 3:35am

science
UNSCRAMBLE RDOCRROUTINEDEVELOPMENT to make 2 words having to do with the reproductive system
Wednesday, June 4, 2014 at 11:38pm

Science
What are the personal, societal, and scientific implications of alpha-1 antitrypsin deficiency? I googled, but couldn't find any info on this????? please help!!!!!!!!!!1
Wednesday, June 4, 2014 at 11:19pm

physical science
The density of water is the greatest at a temperature of A. 0 Kelvin B. 277 Kelvin C. 273 Kelvin D. 4 Kelvin
Wednesday, June 4, 2014 at 10:35pm

computer programming
1. Scanf 5 names of you and your friends 2. Printf hi to all of them. 3. Ask all of them for their ages. 4. Printf the information in tables as shown below. Name age StudName1 19 StudName2 20 StudName3 18 StudName4 34 StudName5 12 5. Use selection statement to do the following...
Wednesday, June 4, 2014 at 9:31pm

Science
10. Metal cations are atoms that have a positive charge. What type of bond is a metal cation likely to form? (1 point) covalent bond double bond single bond ionic bond my answer is d
Wednesday, June 4, 2014 at 7:59pm

science
All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
Wednesday, June 4, 2014 at 7:34pm

science
Function/ Human Structure/ Plant Structure 1. Gas exchange 1. lungs 1.Stoma 2. Circulation 2. Blood vessels 2.Xylem 3. Water intake 3. mouth 3.Roots 4. Energy intake 4. mouth 4.Chloroplasts 5. Internal support 5. skeleton 5.Stem 6. Energy Storage 1. Fat cells 1. Vacuole 7. ...
Wednesday, June 4, 2014 at 7:21pm

science
All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
Wednesday, June 4, 2014 at 7:09pm

Science ecosystems
Paper Glass Aluminum Wooden ruler Sand Steak Pork chops Salad Bread Hair Cotton fabric Wool Cheddar cheese Can you tell why ? It is urgent ! Are they. Biotic or abiotic
Wednesday, June 4, 2014 at 7:01pm

Science ecosystems
Paper Glass Aluminum Wooden ruler Sand Steak Pork chops Salad Bread Hair Cotton fabric Wool Cheddar cheese Can you tell why ? It is urgent !
Wednesday, June 4, 2014 at 6:30pm

science
As part of their job, meteorologists use data to make weather predictions. How accurate are their predictions? What are other scenarios in which you would use data to make a prediction? How would you defend your prediction using data? can you please tell me in your perspective?
Wednesday, June 4, 2014 at 5:44pm

science
a cube has sides that are 3.0cm long. The mass of the cube is 54g. Calculate the density of the cube.
Wednesday, June 4, 2014 at 4:02pm

Science
Mrs. Sue please help! 1. Which is most likely to be part of an ionic bond? (1 point) an atom with no valence electrons an atom with one valence electron an atom with two valence electrons an atom with three valence electrons 2. To form an oxygen molecule (O2), two oxygen atoms...
Wednesday, June 4, 2014 at 3:51pm

science
suppose we have 10 liters of water in a 20 liter bucket and we submerge a one liter soda bottle with water. The buoyant force on a submerged one liter bottle is equal to?
Wednesday, June 4, 2014 at 1:40pm

science
An object is thrown up with a velocity 30m/s. If the acceleration due to gravity is 10m/s2. Cal. I) its velocity after 2s. II) the maximum height reaches. III) the time taken for the take object to come to rest.
Tuesday, June 3, 2014 at 6:39pm

Science
1. Which of those traits are inherited by a dog? J. barking to go outside K. a preference for certain dog food L. the color of its eyes M. walking on a leash 2. during which stage of its life is a moth most likely to damage clothes? J. egg k. larva l. pupa m. adult thanks!
Tuesday, June 3, 2014 at 2:46pm

Science Please Help Me
1.A weatherman reports, “The storm waves are about 2 meters high and about 35 meters apart.” What properties of waves is the reporter describing? (1 point) A.frequency and wavelength B.wavelength and wave speed C.amplitude and wavelength D.amplitude and frequency 2. ...
Tuesday, June 3, 2014 at 1:53pm

fixed question (science check plz)
A portion of the amino acid sequence of an enzyme from a worm is shown below. -Q-Q-Q-N-N-N-C-C Analyze the same portion of the same enzyme taken from several other organisms. Place them in order from most closely related to the worm most distantly related to the worm. -Q-R-Q-N...
Tuesday, June 3, 2014 at 1:46pm

science (help)
a portion of amino acid sequence of an enzyme froma worm is shown below -Q-Q-Q-N-N-N-C-C analyze the same portion of the same enzyme taken from several other organisms place them is order from most closely related to the worm to the most distantly related to the worm...
Tuesday, June 3, 2014 at 1:43pm

Science Plzz Help
12. Which of the following types of pathogens can only reproduce itself if it takes over host cells? A. fungi B. bacteria C. virus D. protozoa****
Tuesday, June 3, 2014 at 1:17pm

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