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December 22, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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physical science
two forces act on an object f1 = 5N f2 = 7N when will the resultant force be maximum?
Thursday, August 21, 2014 at 4:17pm

Earth Science
Please help me with the following questions: 1. A scientist suspected that the increase in the acidity of ocean water could have a devastating effect on organisms such as snails because it could break down calcium carbonate, a chemical that makes up their shells. Which could ...
Thursday, August 21, 2014 at 3:25pm

science
If each resistor in a diagram is 95 Ù. What is the total current in the circuit if it is connected to a 120 V power supply?
Thursday, August 21, 2014 at 1:39pm

General Physical Science
A fishtank with inside dimensions of 65 cm X 45 cm X 80 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms?
Thursday, August 21, 2014 at 1:22pm

physical science
A car travels in a northward direction for a total distance of 512 km. The car completes this trip in 6 hrs. After resting the driver makes the return trip, the return trip only takes 5.5 hours. What is the average speed of the car over the entire trip?
Thursday, August 21, 2014 at 1:21pm

Science
A chemist notes that a solution turns blue when a chemical reaction takes place. Which of the following correctly describes the chemist's data? A.The data is a qualitative observation B.The data is a quantitative observation C.The data is a prediction D.The data is a ...
Thursday, August 21, 2014 at 12:13pm

science
The time units used by scientists to divide Earth's history are part of the
Thursday, August 21, 2014 at 11:48am

Math
Dominic collects sports science fiction and history books. He has 21 books about sports, 35 books about science fiction, and 14 about history. He wants the same number of each type of book on each shelf. What is the greatest number of each type of book on each shelf?
Wednesday, August 20, 2014 at 10:27pm

7th grade Math/Science
Can you help me with this science question: from sea level, the biosphere goes up about 9km and down about 19km. What is the thickness of the biosphere in meters? (there wasn't a formula in the workbook). Thanks
Wednesday, August 20, 2014 at 10:14pm

physical science
need help understanding how to do this problem. "A swimmer swims a half lap, moving from the left end to the right end of a pool that is 50 meters long. What is the distance and what is the displacement? Thanks...
Wednesday, August 20, 2014 at 8:48pm

physical science
On the question...a runner completes exactly 2 laps around a 400 meter track...what is the distance and what is the displacement? Would it be...800m for distance and 0m for displacement? Thanks...
Wednesday, August 20, 2014 at 8:30pm

Life science
Darwin and charles theory on leaves of many desert plants are reduce to thorns
Wednesday, August 20, 2014 at 3:57pm

science
victoria discovered a new way to keep her hands warm on a cold day. what scientific attitude is this an example
Wednesday, August 20, 2014 at 1:27pm

Computer
Which source trait should be considered when trying to ensure a paper or project is up to date? Help, if you would, I am not even sure what this question means.
Wednesday, August 20, 2014 at 12:10pm

Science
4)What geographic feature marks the last obstacle for Georgia's rivers on their way to the Atlantic Ocean? A)The Floridian Aquifer B)The valley and ridge region C)the Fall Line D)the Marshes of Glynn 7)Which northern Georgia region has relied predominantly on coal mining ...
Wednesday, August 20, 2014 at 12:10pm

Science
which of the following are impacts that the temperature climate has had on Georgia's development? A) encouraging crops with longer growing season B)Drawing immigrants from other locations C)encouraging tourism D)all of the above
Wednesday, August 20, 2014 at 10:45am

Science
A piece of magnesium ribbon weight 24g is burn in air an 40g magnesium oxide is formed. What mass of oxygen combined with the magnesium in this reaction
Wednesday, August 20, 2014 at 8:32am

physical science
what is the density of a cube with mass 50g & volume 2cm x 2cm x 2cm?
Wednesday, August 20, 2014 at 4:08am

Physical Science
I'm having trouble with the question: Critique the phrase "airspeed velocity of a swallow." What is meant by this. I know a swallow is a bird and velocity is the speed of an object and the direction of its motion. Not sure the question is asking. Thanks..
Tuesday, August 19, 2014 at 7:22pm

science
can you please help me find 3 good science experiment? for the science fair....
Tuesday, August 19, 2014 at 6:04pm

Science
Could you make sure I'm correct? What is true of the work of all scientists? scientists ask testable questions and devise ways to answer those questions through experimentation or observation
Tuesday, August 19, 2014 at 5:52pm

science
you have a ball of steel and a ball of iron both of the same volume. The ball of of steel has a larger mass. Is it denser, less dense, or does it have the same density as the ball of iron. Explain.
Tuesday, August 19, 2014 at 4:53pm

Physical science
Calculate the volume(at STP) Of these compounds (a) 1,5 mol oxygen gas (b) 0,01 mol of hydrogen chloride gas (c) 3 mol helium
Tuesday, August 19, 2014 at 2:40pm

Science
Calculate the number of (a) atoms in 50 dm^3 nitrogen gas (b)nucleons in 10 cm^3 fluorine gas
Tuesday, August 19, 2014 at 2:26pm

Science
Justin wants to be the captain of an aircraft carrier when he gets out of school. Which subjects should Justin study to help him prepare for his career? A.biomedical science and meteorology B.oceanography and paleontology C.chemistry and biology D.physics and computer science ...
Tuesday, August 19, 2014 at 2:08pm

science
you have a ball of steel and a ball of iron both of the same volume. The ball of of steel has a larger mass. Is it denser, less dense, or does it have the same density as the ball of iron. Explain.
Tuesday, August 19, 2014 at 2:04pm

Science
Which branches of science do pharmacists need knowledge of to do their job properly? A.physics and chemistry B.biology and chemistry C.chemistry and geology D.physics and computer science Is the answer B?
Tuesday, August 19, 2014 at 1:59pm

science
In the space is there any aliens?
Tuesday, August 19, 2014 at 9:55am

Science
Your younger brother who wishes to be a pilot reads a news article about a search and rescue plane. In this search and rescue operation, an ultra-light aircraft travelling north at 30 km/hr encounters a 40 km/hr crosswind. After explaining to him that a crosswind is wind that ...
Tuesday, August 19, 2014 at 9:45am

Science
Can someone please help me on my science?? I'm kinda new here. Thanks :)
Tuesday, August 19, 2014 at 9:05am

Science
In general, what would a scientist do after forming a testable question? A. Design an experiment B. Develop a hypothesis C. Draw a conclusion D. Analyze data (I think B. is that the right answer)
Tuesday, August 19, 2014 at 8:54am

Science
A science teacher was curious to see whether offering money for good grades would increase student peformance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not offered any money. What...
Tuesday, August 19, 2014 at 8:52am

science
If it takes more than a few experiments to find the answer to a particular problem, it means that the scientist has failed and is not a very good researcher.
Tuesday, August 19, 2014 at 8:18am

Science
What is the formula used for finding the gravitational pull of a particular mass in physics?
Monday, August 18, 2014 at 10:55pm

Environmental Science
Answer the questions about the following processes in the space provided below. You only need to indicate a process by its number. For each question list as many processes as apply. Process 1: 6 CO2 + 6 H2O → C6H12O6 + 6 O2 Process 2: C6H12O6 + 6 O2 → H2O + 6 CO2...
Monday, August 18, 2014 at 7:06pm

physical science (chemistry)
calculate the number of atoms in 50 dm3 nitrogen gas
Monday, August 18, 2014 at 4:35pm

life science
why do desert plants have thorns instead of leaves ?Explain the answer according to theories of Charles Darwin and Jean Baptiste de Lamarck
Monday, August 18, 2014 at 12:42pm

Science
A car weighing 15,000N rounds a curve of 60m at an angle of 30 degrees. Find the friction force acting on the tires when the car is travelling at 100kph. The coefficient of friction between tires and the road is 0.90
Monday, August 18, 2014 at 3:54am

dav science
a machine gun fires 25 g bullets at the rate of 600 bullets per minute with a speed of 200 m/s. calculate the force required to keep the gun in position.
Sunday, August 17, 2014 at 9:52pm

science(biology)
state three secondary functions of roots,stems and leaves
Sunday, August 17, 2014 at 6:32pm

history, life science, cat, maths lit
What career path can I follow with these subjects?
Sunday, August 17, 2014 at 1:46pm

math
a computer is being lowered into the ocean from a platform. at this moment it is 210 feet below surface and being lowered 150 feet every 30 minutes. how to write this in the form of an expression?
Sunday, August 17, 2014 at 12:13pm

history, life science, cat, maths lit
What career path can I follow with these subjects?
Sunday, August 17, 2014 at 8:32am

science cbse school
a force of 10 newton gives a mass m1 an acceleration of 2m/s2 and a mass m2 an acceleration of 4m/s2.what acceleration would it givr if both the masses are tied together?
Sunday, August 17, 2014 at 4:16am

Science
In the early 1900s, Alfred Wegener noticed that some of the Earth's continents looked like they might fit together like a jigsaw puzzle. He also observed that the continents that looked like they fit together had similar plants, animals, and rock formations. From this ...
Friday, August 15, 2014 at 11:29am

Science
Is the unit of measurement for a particle beam FLUX - the femtobarn ??? Thanks
Friday, August 15, 2014 at 7:19am

visual basic programming
Write a Visual Basic program that will calculate the assessment marks of a student taking the Computer Programming subject in College. The program must be able to determine the total result and finally display the grade of that student. The program will also ensure that each ...
Thursday, August 14, 2014 at 8:17pm

science
the melting point of pure benzoic acid and pure naphthol are 122.5 and 123 degree Celsius respectively. you are given a pure sample that is known to be either pure benzoic acid or 2- naphthol. describe a procedure you will use to determine the identity of the sample.
Thursday, August 14, 2014 at 6:51pm

science (chemistry)
filter paper is a poor material on which to powder a solid before introducing it into a melting tube .explain why?
Thursday, August 14, 2014 at 6:35pm

Science
The upper layer of the ocean contains an abundance of microorganisms that carry out photosynthesis, such as algae. Why would this make the upper layer rich in oxygen?
Thursday, August 14, 2014 at 4:05pm

fundinjobo high science
a mass of 80 grams of hydrogen gas is heated with nitrogen gas to produce ammonia gas .what is the mass of ammonia that will be produced
Thursday, August 14, 2014 at 12:29pm

science
what do sporangia, cone and flowers have in common? how do they differ?
Wednesday, August 13, 2014 at 8:06pm

science help
where are the science helpers is this a connection for math help only
Wednesday, August 13, 2014 at 4:19pm

Earth Science
A scientific hypothesis can become a theory if? a- the entire scientific community accepts it b- the hypothesis is tested extensively and competing hypothesis are eliminated c- there are no other competing hypothesis d- the hypothesis can be tested at least once My answer is B
Wednesday, August 13, 2014 at 2:49pm

math
What is the area of a square computer screen with 21-in. sides? A. 84 sq. in. B. 220 sq. in. C. 42 sq. in. D. 441 sq. in. please help
Wednesday, August 13, 2014 at 2:42pm

science
What do sporangia, cones, and flowers have in common? How do they differ?
Wednesday, August 13, 2014 at 2:27pm

mathematics (word problems)
A prize for a computer contest includes a computer worth 1/2 of the value of the prize, a monitor worth 1/2 of the remaining value, a modem worth $200, and software worth $150. What is the total value of the prize. This is so challenging, I need help.
Wednesday, August 13, 2014 at 2:12pm

Science
If a nuclide has a decay constant of 10^-6 s-1 what is its half life ??? I think it is 0.693 / 10^-6 = 693000 or 6.93 x 10^5 Is this right ...
Wednesday, August 13, 2014 at 11:51am

MATH
The first month's dues will be used to rent a film about computer-related careers, to purchase a reference book, and to buy refreshments for the next meeting. If 1/2 of the money is spent on her film, 1/4 of the remainder is used for refreshments, and $7.50 is spent on the...
Tuesday, August 12, 2014 at 2:38pm

Earth Science
what is the driving force for the movement of the lithospheric plates? a- heat from the sun b- unequal distribution of heat within Earth c- heat in the atmosphere d- unequal distribution of heat from the oceans My answer is B
Tuesday, August 12, 2014 at 1:41pm

math lit, life science, geography and cat
Hi im a Matric learner and would really like to know what careers I could possibly look into with my subjects listed above Thank you
Tuesday, August 12, 2014 at 1:22pm

Science
What is Biological adaptation. Please explain in plain words.
Monday, August 11, 2014 at 1:46pm

physical science
calculate the number of molecules in 30g water
Monday, August 11, 2014 at 10:39am

Science
*Cement is 70% CaO by mass *Concrete is 17% cement by mass *Concrete masses 150lbs. per cubic feet *There are 27 cubic feet in a cubic yard *15 cubic yards required for house of concrete. CaCo3(s)---CaO(s)+CO2(g) 1.) How many kg. of carbon dioxide were liberated to make your ...
Saturday, August 9, 2014 at 10:55pm

science
What are the six types of simple machines?
Saturday, August 9, 2014 at 12:16pm

science
Why will foot print stay on the moon forever?
Saturday, August 9, 2014 at 4:22am

science
Which is the biggest flower of all?
Saturday, August 9, 2014 at 4:18am

Science
Why carbon brushes is used in machinary, while carbon z a non metal?
Saturday, August 9, 2014 at 3:15am

Science
A car converts 1000 J of energy from a sample of fuel. 750 J of heat (thermal energy) is produced by the engine, 150 J of heat is produced in the transmission, drive train, etc., and 100 J of work is done to move the car. How efficient was the process of burning fuel for the car?
Friday, August 8, 2014 at 11:06pm

life science
why these fossils important discoveries?
Friday, August 8, 2014 at 12:09pm

science
I answered this already. Should you multiply the answer in letter b to 2? QUESTION: Phil Younghusband is a sensational striker of the Philippines National Football team Azkals. An avid fan of his claims that Phil can kick the football and give it an initial speed of 50 m/s. If...
Friday, August 8, 2014 at 7:50am

science
Two students perform a simple experiment. One flicks a dime from the edge of a table. At the same instant, the other student drops a quarter from the same height. Ignoring air resistance, which coin strikes the floor first? Explain why. My own answer.. is this right? "in ...
Friday, August 8, 2014 at 7:48am

Environmental Science
H.B.D. Kettlewell observed that peppered moths in the forests of England were becoming darker in color over time. In addition, he observed that pollution had turned the tree trunks black. He thought it would be easy for birds to spot and capture light-colored moths resting on ...
Thursday, August 7, 2014 at 9:43pm

Science
Imagine that you are part of a research team that is working to control the spread of the Japanese beetle. This is an insect pest from Japan first discovered on the east coast of the United States in 1916. Since that time it has been spreading slowly south and west. The grubs ...
Thursday, August 7, 2014 at 9:11pm

computers
when you connect to a remote VPN server with your laptop running windows 8 what key item is your computer allocated
Thursday, August 7, 2014 at 4:35pm

Math
John has 5 computer games. Julian has twice as many computer games as John. How many computer games do they have in all?
Wednesday, August 6, 2014 at 7:26pm

Psyc, statistics
Introduction to Hypothesis Testing In an article entitled “Science and ethics in conducting, analyzing, and reporting psychological research” in the journal Psychological Science (1994), psychologist Robert Rosenthal examines the relationship between a researcher&#...
Wednesday, August 6, 2014 at 5:41pm

Life Science, Geography, BSTD's and Mathematics
im in GRADE10, im doing those subjects: maths, lyf science, geog and bstd's. So I need help about which job i can get for doing those subjects?
Wednesday, August 6, 2014 at 1:03pm

science
how to measure length accurately using meter scale?
Wednesday, August 6, 2014 at 12:37pm

SCIENCE
A 1.5 kg book on top a shelf has a PE (Potential Energy) of 29.4 J. How high is the shelf?
Wednesday, August 6, 2014 at 10:16am

SCIENCE
A 1.5 kg book on top a shelf has a PE of 29.4 J. How high is the shelf?
Wednesday, August 6, 2014 at 10:00am

Qualitative analysis
Computer sales over the past 4 months have been 35, 34, 38, and 44 units. Using a 3-month moving average, forecast sales for the next month. Using a 3-month weighted moving average with the weights 3, 2, and 1, and with the most weight on the most recent data, forecast the ...
Tuesday, August 5, 2014 at 9:38pm

science
doing a biology project and they want us to figure out how long it takes to cook 6 different foods at 5 different temperatures and gather 30 seperate data points. They want us to identify an x(independent) and a y(dependent) variable that can be recorded on a table. Would x be...
Tuesday, August 5, 2014 at 7:17pm

HELPPP
I printed out a summer activite to test my skill on science and i found some that i stumbled upon and couldnt figuire out so help? If im wrong then please correct me. 2.A 3.B 4.B 5.A 6.B 2.Giraffes have long necks that allow them to eat leaves in trees. What is this an example...
Tuesday, August 5, 2014 at 12:01am

math
Maria, who has been a computer consultant for the past 5 years, has 100 regular customers. Her standerd fee is $90 per hour. She decided to raise her fees, and folowing some research and based on her previous experience, she expects that she will lose a customer for every $1 ...
Monday, August 4, 2014 at 11:39pm

Science(check answers)
I printed out a summer activite to test my skill on science and i found some that i stumbled upon and couldnt figuire out so help? If im wrong then please correct me. 2.A 3.B 4.B 5.A 6.B 2.Giraffes have long necks that allow them to eat leaves in trees. What is this an example...
Monday, August 4, 2014 at 10:06pm

computer history
History,business study,tourism,zulu,maths literacy,english and life orientation. Am doing those subject and am in grade 11 I don't knw what career must I take anybody can help me my digit please 0724306682
Monday, August 4, 2014 at 5:08pm

science (physics)
A projectileis given an initial velocity of icap + 2jcap . The catesian equation of its path
Monday, August 4, 2014 at 12:50pm

science (physics)
A projectileis given an initial velocity of icap + 2jcap . The catesian equation of its path
Monday, August 4, 2014 at 11:33am

science
1.) what energy transformation are taking place when a ball is dropped from 1.0 m, bounces and tries to 0.80 m, bounces again and rises to 0.64m? What is the efficiency of the energy transformations of ball during a bounce?
Monday, August 4, 2014 at 5:58am

Science (Physics)
Two resistors 3ohms and 6ohms are connected in parallel across a 6V battery, what is the current flow through the 3ohms resistors? Just the formula please.
Sunday, August 3, 2014 at 10:37pm

Science
3 resistors having the same resistance value are wired in parallel, how does the equivalent resistance compare to the resistance value of a single resistor? 1) The equivalent resistance is thrice the value of a single resistor. 2) The equivalent resistance is the same as the ...
Sunday, August 3, 2014 at 10:35pm

earth science
The greenhouse effect is a result of A. absorption and radiation of energy in the atmosphere. B. consumption and radiation of energy in the atmosphere. C. absorption and radiation of energy in the hydrosphere. D. consumption of fruits and vegetables that produce a biofuel. i ...
Sunday, August 3, 2014 at 12:53pm

statistics
The trends in international mathematic and science study (TIMSS) in 2007 examined eighth grade proficiency in math and science. The mean mathematics scale score for the sample of eighth grade students in the US was 508.5 with a standard error of 2.83. Construct a 95% ...
Saturday, August 2, 2014 at 7:14pm

science
Calculate the buoyant force in air on a kilogram of gold (whose density is about 19 grams per cubic centimeter). The density of air is 1.3 ✕ 10-3 grams per cubic centimeter. Remember that the buoyant force is equal to the weight of a volume of air that is equal to the ...
Saturday, August 2, 2014 at 4:33pm

agriculture,maths literacy,life science,geography
which career im going to enter in with?
Friday, August 1, 2014 at 4:30pm

math
Four students at a computer fair competed against each other in a space-travel game. Chris scored 2/3 as many points as the winner Pat. Rich scored 1/2 as many points as Chris. Tome scored 100 points, which was 90 points less than Rich's score. How many points did Pat score?
Friday, August 1, 2014 at 11:51am

science
Consider a rotating platform such as you used in lab. Imagine that it is initially rotating at some angular velocity. You drop a disk, that is not rotating, onto the top of the rotating platform so that it sticks to the rotating platform and begins rotating along with the ...
Friday, August 1, 2014 at 8:55am

science
a mixture of gases contains 64g of methane, 64g of oxygen and 64g of sulphur dioxide. The pressure of the mixture is 210 kpa. what is the partial pressure (in kpa) of the methane expected to be?
Thursday, July 31, 2014 at 11:29pm

science
forces of 20N to the south,40N to the northeast, and 10N to be east act on the object.the magnitude of resultant force is a)10N b)39 N c)20 N d)46 N
Thursday, July 31, 2014 at 11:09pm

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