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April 18, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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Science asap
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 Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication ...
Monday, March 17, 2014 at 10:31pm

human resources
ABC science, concerned about higher and higher health care costs has decided to implement the following changes in their employment relationships with ABC employees: 1. Employees must stop using tobacco products and the company will immediately prohibit on site use of tobacco ...
Monday, March 17, 2014 at 10:21pm

Science
I think its c
Monday, March 17, 2014 at 9:52pm

Science
There is a theoretical protein called largeX that helps to stimulate growth of the body during adolescence. The promoter on the lrgX gene that codes for it is normally able to have a protein bind to it that promotes transcription called largene. Largene, bound to the promoter...
Monday, March 17, 2014 at 9:06pm

6th grade - Lang Arts
Can you check the following? Find the verb phrase 1. Will you buy me a drink? ans: will buy 2. Sam is not going to the dance. ans: is going 3. Al should have mowed the lawn today. ans: should have mowed 4. Theresa will be playing her clarinet at the concert tonight. ans: will ...
Monday, March 17, 2014 at 8:55pm

Science
Also, can anyone explain this?
Monday, March 17, 2014 at 8:42pm

Science
Which of the following happens when a low-mass star runs out of fuel? Choose all that apply. A. Its core becomes a white dwarf B. Its outer layers form a nebula, or vast cloud of gas and dust C. its outer layers expand, and the star becomes a red giant D. gas and dust in a ...
Monday, March 17, 2014 at 8:40pm

Physical Science 9
what type of bond is a metal cation likely to form?
Monday, March 17, 2014 at 8:29pm

Physical Science 9
how did chadwicks discovery of nutrons change the atomic model
Monday, March 17, 2014 at 8:16pm

Physical Science 9
In an ionoic bond how many valence electrons would an atom have?
Monday, March 17, 2014 at 8:03pm

Science
(a) What magnitude of force must the worker apply? (b) How much work is done on the crate by this force? (c) How much work is done on the crate by frication? (d) How much work is done on the crate by normal force? (e) How much work is done on the crate by the gravity? (f) What...
Monday, March 17, 2014 at 7:03pm

Science
A factory worker pushes a 29.2kg crate a distance of 4.1m along a level floor at constant velocity by pushing downward at an angle of 28* below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25.
Monday, March 17, 2014 at 7:02pm

physical science
Period = 1/f = (1/5.3)10^-14 seconds distance = speed * time lambda = 3*10^8 m/s * (1/5.3)* 10^-14 = .566 * 10^-6 meters = 566 * 10^-9 meters 10^-9 meters is nanometers, usually used for visible light wavelength
Monday, March 17, 2014 at 4:59pm

science i try i have no idea
Try a dictionary or Google.
Monday, March 17, 2014 at 4:46pm

physical science
Green light has a frequency of about 5.3Hz~10Green light has a frequency of about 5.3Hz~ 10^{14}. Using the relationship speed of light (c)=fƒÉ find its wavelength in air.
Monday, March 17, 2014 at 4:17pm

social studies
You and the 3 or more aliases who all use the same computer of the same wi fi in your home in A_____, South Carolina.
Monday, March 17, 2014 at 3:40pm

science
A) atmosphere
Monday, March 17, 2014 at 2:15pm

Physical Science
This is the trouble with OTEC (Offshore Thermal Energy Conversion) where the difference in temperature between deep ocean water and water at the surface (in tropics of course) can be used to run a turbine system and generate electricity or whatever. However the efficiency is ...
Monday, March 17, 2014 at 2:06pm

Physical Science
heat in = SH * m * delta T SH = heat in / ( m* delta T)
Monday, March 17, 2014 at 1:38pm

Physical Science
go boom !
Monday, March 17, 2014 at 1:36pm

Physical Science
heat out = specific heat of water * mass of water * (30-0)
Monday, March 17, 2014 at 1:36pm

Physical Science
Heat out = Specific heat of ice * mass of ice * change in temp
Monday, March 17, 2014 at 1:34pm

Physical Science
P V = n R T well, R does not change :) R = P V/(nT) = P' .5V /(.5n 2T) = P'(.5)V/(nT) so .5 P' = P P' = 2 P
Monday, March 17, 2014 at 1:33pm

Physical Science
greater than Carnot cycle 1 - (Tcold/Thot) T in KELVIN (dge C + 273)
Monday, March 17, 2014 at 1:30pm

Physical Science
if you mix hot and cold water and get warm water the entropy is higher, even if the energy did not change. The availability of that energy is what changed. Between a glass of hot water and a glass of cold water you can run an engine. However there is not much you can do with a...
Monday, March 17, 2014 at 1:28pm

Physical Science
increase
Monday, March 17, 2014 at 1:23pm

Physical Science
The entropy of an isolated system always do what when natural processes occur?
Monday, March 17, 2014 at 12:34pm

Physical Science
The second law of thermodynamics forbids a heat engine to have thermal efficiency of what?
Monday, March 17, 2014 at 12:34pm

Physical Science
A sample of gas has its number of molecules halved, its Kelvin temperature doubled, and its volume halved. What is the new pressure, relative to the original pressure?
Monday, March 17, 2014 at 12:33pm

Physical Science
On a winter day the temperature drops from –5°C to –15°C overnight. If a pan sitting outside contains 0.49 kg of ice, how much heat is removed from the ice for this temperature change?
Monday, March 17, 2014 at 12:32pm

Physical Science
An ice tray with 175 g of water at 30°C is placed in a freezer at –9°C. How much energy must be removed from the water to lower its temperature to the freezing point?
Monday, March 17, 2014 at 12:32pm

Physical Science
If the volume and the number of molecules remain constant for a gas, a temperature increase causes the pressure to do what?
Monday, March 17, 2014 at 12:31pm

Physical Science
When 8 kcal of heat is added to 2.4 kg of a substance, its temperature increases 23 C°. What is the specific heat of the substance?
Monday, March 17, 2014 at 12:30pm

Math
a citizens group wants to determine people's opinions about a new road. The members of the group conduct a survey at the largest part of the mall in the city. Which best describes the sampling method used by the citizens' group? A.) convenience sample B.) random sample...
Monday, March 17, 2014 at 12:23pm

Science
B. Mechanical digestion.
Monday, March 17, 2014 at 9:14am

Science
Some animals, but not humans, have an organ called a gizzard located near the top of their digestive tract. This organ is small and can contain small rocks. It also has thick, muscular walls. Based on this physical description, which of the following is most likely to be the ...
Sunday, March 16, 2014 at 11:25pm

Science
these answers fu....cking suck a....ssholes
Sunday, March 16, 2014 at 8:40pm

Science
Rain forest is only one type of environment and trees are only one group of plants. Organisms either adapt to their environment or die.
Sunday, March 16, 2014 at 8:37pm

science
how do you explain the millions of different substances found on earth
Sunday, March 16, 2014 at 8:24pm

science (?)
Which wave? https://www.google.com/search?client=saf​ari&rls=en&q=calculate+amplitude+of+a+wa​ve&ie=UTF-8&oe=UTF-8
Sunday, March 16, 2014 at 8:09pm

Science
Agree with Jay.
Sunday, March 16, 2014 at 8:08pm

Science
Different from what? Each different substance has distinct chemical and physical properties.
Sunday, March 16, 2014 at 8:07pm

Physical Science 9
Add water, run the filtrate thru a filter, leaving iron, and sand, and wood. use a magnet to take away the iron. physically pick out the wood chips, leaving the sand. Now, evaporate the salt water, leaving salt.
Sunday, March 16, 2014 at 4:56pm

Biology help please!
opinion on an hypothesis? Is this being taught by a science teacher? We only get into trouble when we start to espouse opinions on hypothesis... Think: what do wolves do? Second, if wolves were removed, what then would the limits on deer population be? Food? Water? What would ...
Sunday, March 16, 2014 at 4:53pm

Physical Science 9
2 H2O ----> 2 H2 + O2 That is a reaction in the outer valence electron shells so despite being a physicist, I call it chemical.
Sunday, March 16, 2014 at 3:48pm

Physical Science 9
when an electric current is passed through water 2 gasses are formed is this a chemical or physical change
Sunday, March 16, 2014 at 3:44pm

Physical Science 9
How would you separate a mixture of iron fillings , salt, sand, and wood chips
Sunday, March 16, 2014 at 3:06pm

Physical Science 9
mass heat in = specific heat * mass * temperature rise
Sunday, March 16, 2014 at 2:59pm

Physical Science 9
a compound
Sunday, March 16, 2014 at 2:58pm

Physical Science 9
when exposed to the same amount of heat for the same amount of time, a 3 g sample of copper will experience a greater temperature change then a 12 g sample of copper due to its smaller what?
Sunday, March 16, 2014 at 2:45pm

Physical Science 9
a substance made of two or more elements chemically combined in a set ratio or proportion is called what
Sunday, March 16, 2014 at 2:41pm

Physical Science 9
Pressure. When you reduce the pressure over a liquid surface to below vapor pressure, it boils off. If you increase the pressure, it does not boil until a higher temperature (eg - pressure cooker). The pressure is high enough in the can to hold the contents in a liquid state, ...
Sunday, March 16, 2014 at 2:39pm

Physical Science 9
the contents of a can of air freshener are gaseous when sprayed but remain a liquid in the can due to what?
Sunday, March 16, 2014 at 2:32pm

Science
a substance made of two or more elements chemically combined in a set ratio or proportion is called what
Sunday, March 16, 2014 at 1:14pm

Science
when molecules of water vapor in the air come into contact with a cold can of soda they lose energy slow down and form a liquid due to a decrease in what?
Sunday, March 16, 2014 at 1:07pm

Science
do pure substances have different chemical and physical properties?
Sunday, March 16, 2014 at 12:35pm

science
Calculate the amplitude of a wave
Sunday, March 16, 2014 at 12:29pm

Science
I would say gas. A gas moves around freely and has lots of energy.
Sunday, March 16, 2014 at 12:08pm

Science
Particles have enough energy to break free from each other and can move around freely; particles spread out in different directions solid liquid gas molecule my answer is molecule
Sunday, March 16, 2014 at 12:07pm

science
350g ofwater at 30 degree celcius is contained in a copper vessel of mass 50g. Calculate the mass of ice required to bring down the temperature of the vessel and its content at 5 degree celcius.
Sunday, March 16, 2014 at 8:02am

Science
Determine the pkb of methylamine if the kb is 4.4*10^-4.
Sunday, March 16, 2014 at 6:02am

Science... plz help~!
F = m*a = 40 * 10 = 400 N.
Saturday, March 15, 2014 at 9:18pm

English
We are not as close as we once were, at least not since the thing happened. We were sitting in science class when I decided to look at her notebook. I noticed that she wasn't taking notes. I think this would be first person
Saturday, March 15, 2014 at 7:11pm

Science
How does adaptation explain the patterns of distribution of plant and animal species in the world? My answer is: If you were in the rain forest, the plants on the forest floor will die because there's tall trees blocking the sunlight. The trees adapt and grow larger.
Saturday, March 15, 2014 at 6:34pm

Science
I would think it's D, but I'm not sure.
Saturday, March 15, 2014 at 5:56pm

Science
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 Would the correct answer be A?
Saturday, March 15, 2014 at 5:50pm

Science
You're welcome.
Saturday, March 15, 2014 at 5:39pm

Science
Thanks
Saturday, March 15, 2014 at 5:27pm

Science- Last question
Which of the following is true of carbon? Carbon is present in all organisms and in the atmosphere.* Carbon moves from consumers to producers. Carbon must be fixed by bacteria before other organisms can use it. Carbon can only be released from dead organisms by decomposers.
Saturday, March 15, 2014 at 5:26pm

Science
http://www.youtube.com/watch?v=kg9azAnsB​co
Saturday, March 15, 2014 at 5:23pm

Science
How does matter move through the biosphere?
Saturday, March 15, 2014 at 5:20pm

Science
#1 depends. what if the climate change involves cooling?
Saturday, March 15, 2014 at 5:14pm

physical science
seconds
Saturday, March 15, 2014 at 5:12pm

Introduction to Computers
You have probably used 3 of these devices, and no information was lost. The other is your computer's internal memory, which loses all data when the computer is shut down.
Saturday, March 15, 2014 at 5:09pm

science
even if you don't know #1, it's evident from the other questions that this is an exercise set involving matrices. #10: a=2 Now, what ideas do you have on the others?
Saturday, March 15, 2014 at 5:08pm

Science
I agree.
Saturday, March 15, 2014 at 4:56pm

Science
Studies indicate that fertilizers from nearby farm fields have entered a lake. Which of the following describes a likely change in this ecosystem in the future? A.Algae populations will increase and trout populations will decrease.* B.Algae populations will decrease,and trout ...
Saturday, March 15, 2014 at 2:56pm

Science
Which of the following is true of carbon? Carbon is present in all organisms and in the atmosphere.* Carbon moves from consumers to producers. Carbon must be fixed by bacteria before other organisms can use it. Carbon can only be released from dead organisms by decomposers.
Saturday, March 15, 2014 at 2:27pm

Science
Thanks :^)
Saturday, March 15, 2014 at 2:15pm

Science
I agree.
Saturday, March 15, 2014 at 2:13pm

Science
Roseate spoonbills are wading birds that live in the Everglades of Florida. These birds eat a diet of shrimp, fish, amphibians, and aquatic plants. Which of the following sets of words could be used to classify this species? autotroph, omnivore, predator heterotroph, herbivore...
Saturday, March 15, 2014 at 2:04pm

Science
Yes.
Saturday, March 15, 2014 at 1:13pm

Science
Oh. So is it 1?
Saturday, March 15, 2014 at 1:09pm

Science
I disagree. http://science.howstuffworks.com/life/bi​ology-fields/cave-biology3.htm
Saturday, March 15, 2014 at 1:06pm

Science
Cave ecosystems are characterized by extremely low light levels. What role does photosynthesis play in a cave ecosystem? 1: Photosynthesis is essential because it provides the original energy source for all food chains in this ecosystem. 2: photosynthesis is essential only for...
Saturday, March 15, 2014 at 12:58pm

Science
I agree.
Saturday, March 15, 2014 at 11:49am

Life science, history, geography, and maths literacy
Its evene wrc for me coz am doin the same subjects and physical sciences
Saturday, March 15, 2014 at 8:19am

physical science
a particle moves from rest and accelerated at 5.00m/s2. how long does it take to travel m?
Saturday, March 15, 2014 at 7:29am

Science (Chemistry)
The answers all are in google. we are not here to do your homework. look it up before posting here.
Saturday, March 15, 2014 at 6:41am

science
1 A ……... is a rectangular array of numbers that are enclosed within a bracket . horizontal set vertical matrix 2 When the numbers of rows is equal to the numbers of columns equal to 'n'. Where m=n. Then is called….. a square matrix a column a row a ...
Saturday, March 15, 2014 at 6:21am

science
1 What is a set of real or complex numbers or elements arranged in rows or columns to form a rectangular array. set matrix determinant real numbers 2 If A.x= λx ,where A= ∣∣∣∣211232−​;212∣∣∣∣ ,determine the eigen ...
Saturday, March 15, 2014 at 6:16am

Science
Kudzu is a climbing vine native to Japan and China. It was introduced in the U.S. in the late 1800s. Today, this plant is common along roadsides in the Southeast, where it takes over and destroys native vegetation. Kudzu would be classified as a(n) ____________ species. My ...
Saturday, March 15, 2014 at 2:23am

science

Saturday, March 15, 2014 at 1:36am

Science
1. Which of the following can be expected to occur as climate change continues on Earth? (1 point) decreased melting of sea ice decreased migration of pests and pathogens increased freshwater sources increased coastal flooding* 2. Which piece of children’s’ ...
Friday, March 14, 2014 at 10:35pm

Science (Chemistry)
. Complete all the following for the reaction (NH4)2S + Cd(NO3)2 --> CdS(s) + NH4NO3 1. Balance this equation 2. Write the ionic equation 3. Write the net ionic equation
Friday, March 14, 2014 at 10:00pm

Science
You are welcome :)
Friday, March 14, 2014 at 8:42pm

Science
Thanks Damon :)
Friday, March 14, 2014 at 8:42pm

Science
That seems reasonable. See for example: http://www.britannica.com/EBchecked/topi​c/967311/nitrogen-fixing-bacteria
Friday, March 14, 2014 at 8:39pm

Science
____ bacteria carry out the conversion of gaseous nitrogen to a biologically useful form of nitrogen. My answer is "nitrogen-fixing" (This is fill in the blank)
Friday, March 14, 2014 at 8:31pm

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

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