Tuesday
July 22, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

Post a New Question | Current Questions

THIS IS FOR MATH AND SCIENCE TUTORS
HAPPY PI DAY! A mathematician, a physicist, and an engineer are all given identicalrubber balls and told to find the volume. They are given anything theywant to measure it, and have all the time they need. The mathematician pulls out a measuring tape and records the ...
Friday, March 14, 2014 at 7:34pm

Science on dissolving
Some medicines are more effective if they dissolve slowly. How could you design a pill that would take longer to dissolve?
Friday, March 14, 2014 at 5:05pm

science
How can two parents with only one round allele between them (1 out of 4 alleles) produce an F1 generation in which 50% of individuals have round seeds? What appears to be the inheritance pattern for seed shape?
Friday, March 14, 2014 at 11:07am

science
If Mendel had only looked at a single cross that produced 10 offspring to determine the pattern of inheritance of seed shape in pea plants, what might he have inferred?
Friday, March 14, 2014 at 11:06am

science
What happened to the proportions of the two phenotypes as the F1 generation grew from 10 to 100 offspring? Why?
Friday, March 14, 2014 at 11:06am

science
Is this hypothesis in the right format?. When yeast and vinegar are put together, they will form an endothermic reaction.
Thursday, March 13, 2014 at 11:56pm

Earth science
The greenhouse effect is a result of A. consumption of fruits and vegetables that produce a biofuel. B. absorption and radiation of energy in the hydrosphere. C. absorption and radiation of energy in the atmosphere. D. consumption and radiation of energy in the atmosphere. D?
Thursday, March 13, 2014 at 11:29pm

Earth science
1. Which of the following is not a natural cause of climatic change? A. Earth's tilt B. Solar activity C. Human activity D. Volcanic activity I think it is C
Thursday, March 13, 2014 at 11:27pm

science
One property used to broadly classify elements is malleability. If a substance is malleable, it can be hammered, shaped, and flattened without shattering. Which group of elements has this property? A. Metals B. Metalloids C. Nonmetals D. Noble gases
Thursday, March 13, 2014 at 8:51pm

Science
How many moles of O2 are needed to react with 1.5 moles of SO2?
Thursday, March 13, 2014 at 7:55pm

Science
How many moles of O2 are needed to make 1.98 moles of SO3?
Thursday, March 13, 2014 at 7:55pm

science
how many moles of SO2 are needed to make 3 moles of SO3?
Thursday, March 13, 2014 at 7:54pm

Science
how many moles of SO3 are produced from 3 moles of O2?
Thursday, March 13, 2014 at 7:51pm

science pls help
i posted this earlier but got a confusing answer so pls help as best as u can asap! True or False 1. If a 40 kg person is accelerating at 10 m/s2, then the magnitude of the force acting on him or her is 400 N. (1 point) true false Multiple Choice 2. How much force is needed to...
Thursday, March 13, 2014 at 5:21pm

Language arts: check my answers
For questions 7–15, rewrite each sentence, adding commas where needed. (7) While I was researching skateboards I found an interesting old newspaper story. (8) In the June 29 1999 edition of the Mercury there was an article on skateboarding. (9) Some scientists in San ...
Thursday, March 13, 2014 at 5:13pm

science URGENT so need help
PLS HELP ASAP True or False 1. If a 40 kg person is accelerating at 10 m/s2, then the magnitude of the force acting on him or her is 400 N. (1 point) true false Multiple Choice 2. How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s2? (1 point) 62 N ...
Thursday, March 13, 2014 at 4:45pm

Science check my answers
Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? denitrification*** nitrogen fixation producer uptake of nitrogen consumer decomposition Which of the following is carried out by denitrifying bacteria? break down large, nitrogen-...
Thursday, March 13, 2014 at 4:38pm

math
Joe puts 5 books in his backpack as he leaves for school. He has 2 math books, 1 science book, and 2 history books. What is the probability that he will grab his science book out of his backpack without looking? I think 1/5 Jacquie has 4 sweaters that go with her new jeans. ...
Thursday, March 13, 2014 at 4:29pm

Science: my answers
Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? nitrogen-fixing bacteria denitrifying bacteria decomposers producers***
Thursday, March 13, 2014 at 4:14pm

MATH
Joe puts 5 books in his backpack as he leaves for school. He has 2 math books, 1 science book, and 2 history books. What is the probability that he will grab his science book out of his backpack without looking? I think 1/5 Jacquie has 4 sweaters that go with her new jeans. ...
Thursday, March 13, 2014 at 4:09pm

Science
Which best describes the similarities among elements included in the same column of the periodic table? A. They have the same state at room temperature. B. They have the same number of protons. C. They have the same number of electrons. D. They have similar chemical properties.
Thursday, March 13, 2014 at 4:02pm

Science
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, March 13, 2014 at 3:27pm

Science
What is the composition of the A horizon ? a. topsoil b. subsoil c. bedrock d. water Either b or d? ^^
Thursday, March 13, 2014 at 3:19pm

Science
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, March 13, 2014 at 3:15pm

Science
Which of the following is not an example of work? A. raising a barbell over your head B. picking up a box off the floor C. holding a tray in the cafeteria line D. pushing a box across the floor I think its C.
Thursday, March 13, 2014 at 3:12pm

Science
In what direction does an applied force move an object? It moves opposite right?
Thursday, March 13, 2014 at 3:10pm

science motion short answer
9. Provide three statements that demonstrate the importance of units when describing motion. (3 points) i dunno wut they r askin... so..... if u can help, 3 sentences would be gr8 pls help asp thx
Thursday, March 13, 2014 at 2:41pm

business law
Fortune 500 company that sells computer chips. A little company in the mid-west keeps underselling your company’s product. In response, you lower your product’s price, but only in the mid-west. The U.S. government declares that your company is in violation of the ...
Thursday, March 13, 2014 at 2:26pm

science (check answer?)
What does aluminum, germanium, and polonium have in common? A. They are gases. B. They have properties of metals and nonmetals. C. They are all metals. D. They have the same properties as the noble gases in the last column. (I think its B.)
Thursday, March 13, 2014 at 2:21pm

science
5. What is the net force acting on the object below? (1 point) its two 5N arrows pushing a block to the right, like this 5N -----> and the block is here 5N -----> and the block is here 0 N 5 N 10 N 25 N do u multiply, add or what???
Thursday, March 13, 2014 at 1:32pm

Science
What happens when yeast and hydrogen peroxide are mixed together? What happens when yeast, hydrogen peroxide, and dish soap are mixed together?
Thursday, March 13, 2014 at 1:31pm

science
3. A section of the Periodic Table of the Elements is shown. Based on the positions of the elements, the two elements that have the most similar chemical properties are — A. calcium and scandium B. calcium and titanium C. titanium and vanadium D. magnesium and calcium 4. ...
Thursday, March 13, 2014 at 12:56pm

Science
1. Of the following, the only change that is an example of a chemical change is — A. water evaporating from a puddle B. an iron nail rusting and turning an orange color C. a piece of paper being cut into smaller pieces D. a stick being broken in half 2. All of the ...
Thursday, March 13, 2014 at 12:49pm

8th Grade Science (Periodic Table)
1. What conclusions can be drawn about the relationship between the arrangement of elements on the periodic table and the patterns observed in their properties? Properties of elements are related to atomic numbers. Properties of elements are related to ductility. Properties of...
Thursday, March 13, 2014 at 12:39pm

science one question
2.Which of the following would be affected if a soaring eagle changed direction but remained at a constant speed? acceleration only velocity only*** acceleration and velocity neither i dont think it would be acceleration since the eagle stayed at a constant speed... help asap??
Thursday, March 13, 2014 at 12:29pm

science one question?
3. Which of the following is an example of a SI unit for distance? (1 point) mile meter second inch
Thursday, March 13, 2014 at 12:01pm

Physical Science
X-rays can take pictures of your bones but visible light cannot. Explain why. Homework question, please and thank you!
Thursday, March 13, 2014 at 11:52am

Science
If you wish to warm 100 kg of water by 20° C for your bath, show that 8370 kJ of heat is required.?
Thursday, March 13, 2014 at 6:39am

Science
How do you do science homework????????????????????????????????​????????????????????????????????????????​
Thursday, March 13, 2014 at 1:51am

Computer
A company is supplying 5 types of soft drinks like Pepsi, Sprite, Orange Soda, Cherry Soda and a new lemon drink to different stores. The company has a new promotion which gives a free dozen of lemon drink and free dozen of cherry drink for every 24 dozen of Pepsi, for every ...
Thursday, March 13, 2014 at 1:44am

Science question, only 1
Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is degrading slowly with time. Only water not present in oceans is available for living things to use. Once it ends up as groundwater, water...
Thursday, March 13, 2014 at 12:31am

Science check my answers
Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is degrading ...
Wednesday, March 12, 2014 at 10:44pm

TO DrBob222 or any science helper
identify the following formulas as acids, bases or salts: HCH3COO NaCL H2CO3 C6H8)7 Mg(OH) NaOH KBr Sr(OH)2 HNO3 please help really urgent :) thanks :)
Wednesday, March 12, 2014 at 9:58pm

Science quick help needed
identify the following formulas as acids, bases or salts: HCH3COO NaCL H2CO3 C6H8)7 Mg(OH) NaOH KBr Sr(OH)2 HNO3 please help :) thanks :)
Wednesday, March 12, 2014 at 9:38pm

science
ok, so i saw somebody already put this question here a few min ago but the answer wuz confusing... 25. When an electric current is passed through water during the process of electrolysis, two gases are formed. One gas has a boiling point of –183°C and the other has a ...
Wednesday, March 12, 2014 at 9:01pm

Science... plz help~!
The popul Vuh indicates that the mayans valued
Wednesday, March 12, 2014 at 8:58pm

science, pls explain this!
25. When an electric current is passed through water during the process of electrolysis, two gases are formed. One gas has a boiling point of –183°C and the other has a boiling point of –253°C. Has a physical change or a chemical change occurred? Explain. (6 ...
Wednesday, March 12, 2014 at 8:28pm

please check(Social studies)
please check my answers thanks 1.B 2.C 3.B 4.B 5.C and D 1.How did the haitian revolution impact the history of the united states? A.It brought the united states into a war with spain over cuba. B.France no longer had haiti,so Napeleon was willing to sell louisiana. C.Slave ...
Wednesday, March 12, 2014 at 8:04pm

Science :(
4. Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain 5. Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is ...
Wednesday, March 12, 2014 at 7:32pm

Science URGENT
Hi, I am working on stoichiometry and limiting reactant problems. I have worked through examples in my book and I did them right and can solve for the excess, however there is one problem in the book that has confused me. I don't understand why they identified the limiting...
Wednesday, March 12, 2014 at 5:42pm

Science asap
1. Which of the following describes the correct sequence of events during the water cycle? precipitation → condensation → evaporation → runoff condensation → precipitation → runoff → evaporation runoff → condensation → ...
Wednesday, March 12, 2014 at 5:30pm

Science
Hi, I am working on stoichiometry and limiting reactant problems. I have worked through examples in my book and I did them right and can solve for the excess, however there is one problem in the book that has confused me. I don't understand why they identified the limiting...
Wednesday, March 12, 2014 at 4:35pm

Science 6th grade Earth's day and night ANSWERS
1. how does earth's rotation cause day and night? (1pt) As the earth rotates toward the east the sun appears to rise in the east and set in the west. 2.Roughly how many times does the earth rotate during each complete revolution? (1pt) 365. 3. Saturn's day is roughly ...
Wednesday, March 12, 2014 at 4:30pm

computers
What percent of my computer fleet will I have to replace every year in order to implement a 5-year rotation plan on my computing device
Wednesday, March 12, 2014 at 3:38pm

Science
which of the two conditions listed below are usually necessary in order for a fossil to form? possession of hard parts thick mud**************************** entrapment in oil rapid burial************************* Answers: 1. B and D Thank You.
Wednesday, March 12, 2014 at 3:23pm

Science
Is this correct. True or False. You can produce lower pressure by decreasing the area a force acts on. I think it is true.
Wednesday, March 12, 2014 at 2:19pm

Science
How many ice ages do scientist estimate have occurred during the last billion years? 3 5************************************* 6 7 How often do scientists say that recent cycles of advancing and retreating ice sheets occur? approximately every 100,000 years******* approximately...
Wednesday, March 12, 2014 at 2:09pm

Science
Which of the following is NOT a common landform caused by the passing of a glacier? Drumlins Esker Moraine Steppe ******************** There are sometimes flowing rivers within a glacier. True *************************** False Glaciers form and grow when the snowfall from one ...
Wednesday, March 12, 2014 at 1:55pm

PLS HELP ASAP 1 SUPER HARD & ANNOYING QUESTION
Use the diagram to answer question 13. so substance A looks like a row of three little circles on the top and bottom all organized (total six dots). substance b is all clumped together circles and is disorganized. 13. How can substance A and B be compared? Choose all that ...
Wednesday, March 12, 2014 at 1:47pm

PEOPLE, SCIENCE, AND THE ENVIRONMENT
. If all life ceased on Earth, how quickly would the atmosphere become like that of Venus and Mars? Explain.
Wednesday, March 12, 2014 at 1:34pm

Science... plz help~!
If a 40 kg person is accelerating at 10 m/s^2, then the magnitude of the force acting on him or her is 400 N. (1 point) True False
Wednesday, March 12, 2014 at 1:11pm

STATISTIC HELP
1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing probability and answer the questions that follow. Plain Brown Blue Green Orange Red Yellow Probability 0.3 0.1 0.1 0.1 0.02 ??? ...
Wednesday, March 12, 2014 at 1:08pm

science help
What causes hurricanes to form in central america and the caribbean? A.trade winds B.extreme heat C.lack of cloud cover D.drought
Wednesday, March 12, 2014 at 12:44pm

SCIENCE HELP ASAP PLZ! ONLY ONE QUESTION!!!!!!!!
which of the following is not a benefit provided by a social group a) instinct to run from predators b) access to mate c) protecting young d) learning to recognize predators
Wednesday, March 12, 2014 at 12:44pm

SCIENCE HELP ASAP ONLY ONE QUESTION!!!!!!!!!!!!!!!
which of the following is an example of corporate behavior A) a lion hunting a zebra B) Two male peacocks fighting over a female peacock C) A hyena stealing a cheeta's kill D) a bluejay calling to signal the presence of a hawk
Wednesday, March 12, 2014 at 12:42pm

SCIENCE HELP ASAP PLZ!
Which of the following helps ensure a group’s access to resources it needs for survival? A) courtship ritual B) hibernation C) conditioning D) territorial behavior
Wednesday, March 12, 2014 at 12:37pm

science(check answers)
2.C 3.A 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B.engines C.mines D.turbines 3.which of the following is not among the advantages of generating nuclear energy? A.It does not release carbon dioxide into the atmosphere. B.it ...
Wednesday, March 12, 2014 at 11:56am

science(check answers)
1.A 2.A 3.D 4.C 1.Is the following statement true or false?Solar panels collect energy from the sun that can then power a lamp in a home. A.True B.False 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B.engines C.mines D.turbines 3....
Wednesday, March 12, 2014 at 11:23am

science(check answers)
5.B 7.C 5. The process of desertification can occur when A. plants usually found in the desert replace trees that have been cut down B. farmers use contour farming techniques C.an area of forest is clear-cut D.an area of forest is selectively cut 7. Which of the following ...
Wednesday, March 12, 2014 at 12:13am

Science
Which of the following is NOT a way that machines provide a mechanical advantage? a.change direction b.change distance c.change power d.change force
Wednesday, March 12, 2014 at 12:08am

science(check answers)
1.True 2.A 3.B 4.C 5.C 6.B 7.C 8.D 1. Aquaculture is the practice of farming sea organisms as a renewable food source. A. True B. False. 2. Selectively cutting down trees on an area of land can be best described as A. cutting down certain trees while leaving other trees ...
Tuesday, March 11, 2014 at 11:36pm

Science
May someone please explain the process of respiration of animals.
Tuesday, March 11, 2014 at 11:16pm

science(check answers)
i dont think the answer could be A. so i pick B. One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a fossil fuel D. it cannot be used up
Tuesday, March 11, 2014 at 11:01pm

science(check answers)
1.D One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a fossil fuel D. it cannot be used up
Tuesday, March 11, 2014 at 10:57pm

science(check answers)
1. A 2. C 3. A 4. D 1. Coal, oil, and natural gas are inexpensive sources of fuel which do not cause pollution when used. A. true B. false 2. One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a ...
Tuesday, March 11, 2014 at 10:44pm

science
if electrons are caused to fall through a potential difference of 100000 volt,determine their final speed if they were initially at rest.
Tuesday, March 11, 2014 at 10:13pm

Science
what mass of sulphuric acid must be added to a 750 ml to have a ph of 2.27
Tuesday, March 11, 2014 at 10:01pm

science
Can u unscramble these letters into a word? ATSETLECTOICNP
Tuesday, March 11, 2014 at 9:40pm

English Answer Check--Please, help me!
Underline the clauses in the following sentences. Identify each as an adverb clause or a noun clause. 1. When _he discovered the data were corrupt_, Swift knew he had to do something. A: Adverb clause. 2. Henderson belived that _any Multivac provided_ was unreliable. A: Noun ...
Tuesday, March 11, 2014 at 9:08pm

English Answer Check--Please, help me!
Underline the clauses in the following sentences. Identify each as an adverb clause or a noun clause. 1. When _he discovered the data were corrupt_, Swift knew he had to do something. A: Adverb clause. 2. Henderson belived that _any Multivac provided_ was unreliable. A: Noun ...
Tuesday, March 11, 2014 at 9:06pm

science(check answers)
please check my answers 1. B 2. A 3. D 4. A 1.B 2.A 3.D 4.A 1.All renewable resources are inexhaustible A.true B.false 2.Some fuels,called biofuels,are made from plants.They are used in cars and other machines biofuels would fit best in which of the following categories A. ...
Tuesday, March 11, 2014 at 9:04pm

science(check answers)
please check my answers 1. B 2. A 3. D 4. A 1.B 2.A 3.D 4.A 1.All renewable resources are inexhaustible A.true B.false 2.Some fuels,called biofuels,are made from plants.They are used in cars and other machines biofuels would fit best in which of the following categories A. ...
Tuesday, March 11, 2014 at 8:18pm

science
Are there important aspects of your personality that were not addressed by this questionnaire? If so, which ones? just make up something. answer in detail regarding hexaco inventory
Tuesday, March 11, 2014 at 6:11pm

science
How accurately do you think your best friend or a close family member would be able to answer these questions about you? Are there some aspects of your personality that are more private than others? answer in detail regarding hexaco inventory
Tuesday, March 11, 2014 at 6:10pm

science
What personality traits do you think this hexaco inventory measured? answer in detail
Tuesday, March 11, 2014 at 6:07pm

science
3. Liquefied air (assuming it is only O2 and N2) is kept in a container where pressure and temperature can be controlled. a. What is the maximum temperature at which the mixture exists as a liquid? If this temperature is kept constant, what is the minimum pressure to keep the ...
Tuesday, March 11, 2014 at 2:13pm

Statistic Please Check
Check this out please Thanks Lesson 3 Unit 2 Probability Couplements, Disjoint Events and the addition Rule 1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing probability and answer the...
Tuesday, March 11, 2014 at 11:44am

Science :(
Which of the following describes the correct sequence of events during the water cycle? precipitation → condensation → evaporation → runoff condensation → precipitation → runoff → evaporation runoff → condensation → evaporation...
Tuesday, March 11, 2014 at 10:44am

Science Help PLEASE!!
1. What happens to the levels of surface water and groundwater during a drought? Surface water and groundwater levels increase during drought. Surface water and groundwater levels decrease during drought. There is no change in the levels of surface water and groundwater during...
Tuesday, March 11, 2014 at 10:15am

English
I'm writing a personal essay for an internship. Is everything in this essay clarified? Where can I expand? I don't know about you but I like living. And in order for me (and those who proceed me) to live a nice, long and happy life, we have to do something about the ...
Tuesday, March 11, 2014 at 3:52am

science
2. Alex, a fresh graduate chemical engineer, started his job by a mission requested by his boss. He was supposed to prepare a small amount of ethylene in the lab, to use it later for polyethylene synthesis. His boss, OE, also known as “The Monster” did not provide ...
Tuesday, March 11, 2014 at 1:52am

science
Calculate the mass percent composition of each element in each compound.
Monday, March 10, 2014 at 8:43pm

Science
If 33.7 grams of LiOH dissolve in enough water to make a 231-gram solution, what is the concentration in percent by mass?
Monday, March 10, 2014 at 5:38pm

Please Help Me :( Science: Biology, Genetics!
Please help me with science genetics questions? Thanks to all who answer!! :) 1. Chromosome pairs contain different versions of genes, which are called ________. 2. The process in which body cells are duplicated in order to grow and repair body tissues is called _____________...
Monday, March 10, 2014 at 5:22pm

Science, Genetics
Please help me with science genetics questions? Thanks to all who answer. :) 1. Chromosome pairs contain different versions of genes, which are called ________. 2. The process in which body cells are duplicated in order to grow and repair body tissues is called _____________. ...
Monday, March 10, 2014 at 4:28pm

science
In the following diagram, the greem ball changes direction after colliding with the red ball because the red ball has more momentum. True <---- False 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100 kg m/s <---- ...
Monday, March 10, 2014 at 3:37pm

Science
What is the formula to find density when weight is 90N, Vol is 45ml, Mass is 9.0g
Monday, March 10, 2014 at 3:30pm

science
Hannah is comparing a rock from a riverbed and a rock from deep underground. One is very smooth, and the other has very rough edges. Explain why each rock was probably found in that location.
Monday, March 10, 2014 at 2:43pm

Science help
A student combined water, sugar, and salt into a beaker. Which of the following statements are true? a. The individual substances can be separated by physical means.** b. The individual substances cannot be separated by physical means. c. A new substance is made of two or more...
Monday, March 10, 2014 at 2:11pm

science
Every year Eli and his family visit Great sand dunes desert in Colorado.Elliott notices that more dunes with varied shapes and sizes appear each year.Explain what causes phenomenon.
Monday, March 10, 2014 at 1:58pm

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