Tuesday
June 30, 2015

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

science 207
4. What can be done to prevent mine drainage from damaging the ecosystem? Utilize at least one scholarly resource to support your suggestions.
Monday, June 29, 2015 by Lisa

Science
What are the reasons why human being is considered the most intelligent animal in the earth?
Monday, June 29, 2015 by Emma

Science
What are the reasons why human being is considered the most intelligent animal in the whole universe?
Monday, June 29, 2015 by Emma

I am doing pure math, geography, english HL , afrikaans EAT, physical science, life science and life orientation.
Possible careers?
Monday, June 29, 2015 by Vicario

Science
Deduce Dalton's law of partial pressure from kinetic theory
Sunday, June 28, 2015 by Harday

Science
if 0.75 mole of helium gas occupies a volume of 1.5. what volume will 1.2 mole helium occupy at the same teperature and pressure?
Sunday, June 28, 2015 by Nicole

Science
0.02 mole of urea is dissolved in 250ml of solution. if density of solution is 1.10 g/ml . calculate percentage weight by weight and percentage weight by volume ?
Sunday, June 28, 2015 by Awadhesh kumar

Science
what happens to the brain as an individual grows older? a. what happens to the billions of nerve cells in the cortex as one becomes older? b. will the dead neurons be replaced? c. why is memory affected as one grows old?
Sunday, June 28, 2015 by zaree

Science
Which of the following describes the most important reason for repeating an experimental investigation? A. To verify the validity of the original findings B. To expand upon the original investigation C. To manipulate the independent variable D. To attempt to disprove the ...
Sunday, June 28, 2015 by Lil

science
Design a controlled experiment to test your hypothesis, describing how you would interpret your results. Please limit your response to one paragraph
Saturday, June 27, 2015 by hala

science
A copper ball is dropped from a vartical height 1200m.if the initial temptature of copper ball at the height is 12 degree celsius,what is its temperature on reaching the ground? Assume all its kinetic energy changes to heat energy and specific heat capacity of copper is 400 ...
Saturday, June 27, 2015 by nitesh srivastav

science
Why is see saw a first class lever?
Saturday, June 27, 2015 by shreyas

ICT
Is there any computer businessman here? I just need your answer. Thanks. Name of Proprietor/Practitioner: ___________________________________ Age: ________________________________________​__________________ Number of Years in Business: ...
Friday, June 26, 2015 by miles

ICT
I need to interview people who have Computer business, would you please answer it for me? Name of Proprietor/Practitioner: ___________________________________ Age: ___________________________________ Number of Years in Business: ___________________________________ Business ...
Friday, June 26, 2015 by miles

Atakpa science college zaki-biam
Two identical charges repel each other with a force 0.1mN and are moved additional 5.0cm a part the repulsive force is reduced to 25 x 10^-6N, (a) How far were they originally (b) what is the size of the charges
Thursday, June 25, 2015 by Terzungwe nicholas

Science physics
a machine was used to lift a load of 30N through a distance of 2metres. the effort applied was 10N through a distance of 8metres. calculate the mechanical advantage
Thursday, June 25, 2015 by Arnold

Science
why is it when we cook something sour like plums, it will tend to become sweeter & lose its sourness.
Thursday, June 25, 2015 by Mohammad

science
Octane (C8H18) is a liquid that combusts with oxygen gas (O2) to form water (H2O) and carbon dioxide (CO2). Write a balanced chemical equation for this reaction and explain the scientific principle (statement) that requires the balancing of an equation to make it conform to ...
Thursday, June 25, 2015 by Bookworm

Science
A scientist has noted a possible relationship between a certain chemical substance found in fish and the occurrence of kidney failure in humans. Which of the following preliminary steps should the scientist take before conducting a controlled experiment? A. Establish a cause ...
Wednesday, June 24, 2015 by Lil

science
Why is an incandescent bulb hot to touch when it has been switched on for a while?
Wednesday, June 24, 2015 by shrutika

science
A force of 16.0 newtons is sufficient to set a box that is at rest into motion. If the coefficient of static friction is 0.380, what is the normal force acting on the box?
Wednesday, June 24, 2015 by kevin

Computer Architecture/Assembly Question - Amdahl's
Can someone show me how to solve this problem? For a program that is 70% parallelizable, what will be the speedup relative to a uniprocessor from running it on a 4,8, and 16 way multiprocessor assuming perfect load balancing. Thanks!
Wednesday, June 24, 2015 by Fred

Science
How to find oxidation numbers ?
Tuesday, June 23, 2015 by Singh

pragati s.s.h.s.s
science:why is the units of power called derived?
Tuesday, June 23, 2015 by swostika bhattarai

physcial science
What are the wavelength limits of the audible range of the sound spectrum? (Use the speed of sound in air. The speed of sound in air is 344 m/s. The audible range of the sound spectrum contains frequencies as low as 30 Hz and as high as 25 kHz.)
Tuesday, June 23, 2015 by Christine

physcial science
Picnickers see a lightning flash and hear the resulting thunder 7.9 s later. If the storm is traveling at a rate of 20. km/h, how long, in minutes, do the picnickers have before the storm arrives at their location?
Tuesday, June 23, 2015 by Christine

Science
The rider of a ferris wheel moves at a rate of 0.18 m/s2. If the rider is 5.0 m from the center of the ferris wheel, What is his/her Velocity? Can't figure out if the RADIUS and RATE are the same and Which one is the radius/rate?
Tuesday, June 23, 2015 by LALA

Science
The rider to a Ferris wheel moves at a rate of 0.18m/s2. If the rider is 5.0m from the center of the Ferris wheel, what is his/her velocity?
Tuesday, June 23, 2015 by Alfonz

science
The reaction h2so4+naoh->bahso4+h20 is what reaction
Tuesday, June 23, 2015 by shibani

science
A sample consisting of 1.00 mol Ar is expanded isothermally at 0°C from 22.4 dm3 to 44.8 dm3 (a) reversibly, (b) against a constant external pressure equal to the final pressure of the gas, and (c) freely (against zero external pressure). For the three processes calculate ...
Monday, June 22, 2015 by Tris

science
what is the percent by volume of ethanol (C2H6O, or ethyl alcohol) in the final solution when 85 mL of ethanol is diluted to a volume of water? Show your calcutayions
Monday, June 22, 2015 by jeomen

Science
What fundamental force is the reason behind the following and why: 1. Ice ring formation around Saturn 2. Aging and sagging of the skin 3. Lightning 4. Navigation using a compass 5. A neutron transforming into a proton 6. The variety of elements as seen in the periodic table 7...
Monday, June 22, 2015 by Millie

Science
4g of an organic compound gave 2.34g of carbon 0.16g of hydrogen 0.46g of nitrogen 1.04g of oxygen.what is the empirical formula
Monday, June 22, 2015 by Samuel

geography.math lit,l.o,life science,english,sepedi and history
well among all those subject i'm good at sepedi, maths,history,english an geography,so is it possible for me to become a lawyer wth these subject?
Monday, June 22, 2015 by shakes

geography.math lit,l.o,life science,english,sepedi and history
well among all those subject i'm good at sepedi, maths,history,english an geography,so is it possible to become a lawyer wth these subject?
Monday, June 22, 2015 by shakes

Science
A brick mass of 4.5 kg is thrown rertical into the air the brick leave the hand at a velocity of 10 m/s find the kinetic energy the moment it leave the hand?
Sunday, June 21, 2015 by Dennis

science
A Molecule of H2 Can travel an average distance of 92 nm before it collides with another H2 molecule in a 2.09 L container that has 0.87 mol of H2 (g) with a total pressure of 0.98 atm. What is the temperature of the container in K? Assume the diameter of H2 to be 1.09 angstrom.
Sunday, June 21, 2015 by T.Asadi

ST MICHAEL NURSERY SECONDRY AND PRIMARY SCHOOL KONTAGORA
BASIC SCIENCE. A BOY OF MASS 50KG RUNS UP A FLIGHT OF 10 STAIRS EACH OF HEIGHT 0.2M IN 5 SECONDS CALCULATE HIS POWER.
Saturday, June 20, 2015 by FESTUS UGWOKE

Science
are volcanoes and mountain belts found in every country or continent? why? or why not?
Friday, June 19, 2015 by TRG

Science
mg +2Hcl --MgCl2. + h2 Calculate minimum volume of 0.1ml\L Please help
Friday, June 19, 2015 by Sarah

Science
mg +2Hcl --MgCl2. + h2 Calculate minimum volume of 0.1ml\L Please help
Friday, June 19, 2015 by Sarah

science
this is bio what would happen to the forest environnment if the lynx started being hunted for their skins?
Thursday, June 18, 2015 by Stoof

B. My gange girls sen sec school (science)
A hot plate of an electric oven connected to a 220V line has two resistance coils A and B, each of 24 ohms resistance, which may be used separately, in series, or in parallel. What are the currents in the cases?
Thursday, June 18, 2015 by Radhika

science
Darren the astronaut traveled to Planet U-427, a planet that is as big as Earth but is half the mass of Earth. What can you say about Darren's weight in this planet?
Wednesday, June 17, 2015 by ej

Math
Of the 597 students at Duzine Elementary School, 19% have a computer at home. About how many students have a computer at home?
Wednesday, June 17, 2015 by Anonymous

science
The driver of a 1125 kg. dump truck exert a sudden broke with a force of 2500n . calculate the acceleration of the truck upon a sudden brake
Wednesday, June 17, 2015 by dyna fe

physical science chemistry
If 25 cm^3 of the potassium hydroxide (KOH) solution was used to neutralise 35cm^3 hydrochloric (HCl)solution, determine the concentration of the hydrochloric acid solution. Thanks
Wednesday, June 17, 2015 by jonathan

science chemistry
Brandon prepares a potassium hydroxide solution (KOH) that he uses during a titration to determine the unknown concentration of a hydrochloric acid solution calculate the mass of potassium hydroxide that is need to prepare 250 cm^3 of a standard 0,125 mol.dm^-3 KOH solution.
Wednesday, June 17, 2015 by dennis

science
Darren the astronaut traveled to Planet U-427, a planet that is as big as Earth but is half the mass of Earth. What can you say about Darren's weight in this planet?
Wednesday, June 17, 2015 by ej

Science
What is the atmosphere's role in the exchange of gases on Earth?
Tuesday, June 16, 2015 by Victoria

Science Help. Thank You! (:
how does petroleum affect the environment? please no links thank you! (:
Tuesday, June 16, 2015 by ilovelasagna

Earth Science
What is the atmosphere's role in the exchange of gases on Earth?
Tuesday, June 16, 2015 by Victoria

physical science
An input force of 20 newtons is applied to a lever at a distance of 2 meters from the fulcrum. An object 0.5 m away from the fulcrum (and on the other side) is lifted by the 20-N force. What is the output force? A. 10 N B. 20 N C. 40 N D. 80 N
Tuesday, June 16, 2015 by tetianna

Science
What is the mass if a bag if its weight is 9.5N? What is its weight when it is brought to the moon?
Tuesday, June 16, 2015 by Jeric

science
Time of evaporation of 250ml of water at room temperature
Tuesday, June 16, 2015 by sjdooa

science
An astronaut has a mass of100kg. She recedes from her spacecraft using spurts of gas from a small unit on her back. If the force generated by the gas spurt is 50N, calculate her acceleration.
Tuesday, June 16, 2015 by april

physical science
A car is driving at an average speed of 100km/hr for 2 hours, then drives an average of 50.0km/hr for one hour. what was the average speed of the 3 hours? 100.0km/h 100.0km/h +50.0km/h =250.0km/3h 250.0km/3h divided by 3h =83.3km/h
Monday, June 15, 2015 by Teresa

Science Help. Thank You! (:
What are the three of the most widely used energy sources in California?
Monday, June 15, 2015 by ilovelasagna

Science 207
Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 2 3 4 5 6 7 8 POST LAB QUESTIONS 1. Develop hypotheses on the ability of oil, vinegar, and laundry detergent ...
Monday, June 15, 2015 by Lisa

Science 207
Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 2 3 4 5 6 7 8 POST LAB QUESTIONS 1. Develop hypotheses on the ability of oil, vinegar, and laundry detergent ...
Sunday, June 14, 2015 by Lisa

Science
When you change the dna code to mRNA, will A become U or T?
Sunday, June 14, 2015 by Ryan

science chemistry
A basic amino acid,arginine,has a molar mass of 174g.mol^-1.it has the following percentage composition:41,38% carbon, 18,39% of oxygen,32,18% of nitrogen and 8,O5% of Hydrogen.determine the molecular formular of arginine
Sunday, June 14, 2015 by bob

queen's science Academy
A stone is dropped from the top of a tall building and at the same time another stone is thrown vertically upward from the ground level with a velocity of 20m/s the stones meet exectity 2s after their release how tall is the building
Sunday, June 14, 2015 by Aisha naabba

science chemistry
A given mass of helium(gas)occupies a volume of 3,6m^3 at a pressure of 105 kPa.if the temperature remains constant,calculate volume of the gas if the pressure is decreased to 70 kPa.
Sunday, June 14, 2015 by melissa

science chemistory
CaCO3 2HCl forms CO2 CaCl2 H2O 1.calculate the molar mass of calcium chloride produce 2.calculate the number of moles of calcium carbonate 3.calculate the mass of calcium carbonate
Sunday, June 14, 2015 by kem

physical science chemistry
Fill in the missing words Ionisation energy, water, melting point, electronegativity, non-polar, solvent, pair, boiling points, polar A covalent bond is formed when a 1________ of electrons is shared between the bonding atoms.when the electrons are shared equally,a 2_______ ...
Sunday, June 14, 2015 by kem

Science
Marie and Pierre Curie coined which term to describe the ability of certain elements to give off radiation spontaneously? Florescence Rarefaction Radioactivity** Electromagnetic (**=my answer)
Saturday, June 13, 2015 by I Need Help :/

Science living environment Regents
When you change the dna code to mRNA, will A become U or T?
Saturday, June 13, 2015 by John

Computer Science
A public transport company provides three types of transports to its passengers to travel from city A to city B of different state. The three types of transports are train, bus and taxi. Each transport has different charges and maximum seats limit. The table below shows the ...
Saturday, June 13, 2015 by Tiffany

Science
If you have a rocket with a mass of 30.0 kg, how much thrust will be needed to have a thrust to weight ratio of 3:1?
Friday, June 12, 2015 by Lucy

Science
1. Two 20.-newton forces act concurrently on an object. What angle between these forces will produce a resultant force with the greatest magnitude? (1) 0° (2) 45° (3) 90.° (4) 180.° 2. A rock is thrown straight up into the air. At the highest point of the rock...
Friday, June 12, 2015 by Jess

Science
Two 20.-newton forces act concurrently on an object. What angle between these forces will produce a resultant force with the greatest magnitude? (1) 0° (2) 45° (3) 90.° (4) 180.°
Friday, June 12, 2015 by Kim

science
) If an ocean is opening at a rate of 5 cm/year and it has been doing so at the same rate for 10 million years, approximately how wide is that ocean?
Friday, June 12, 2015 by Alex

Computers
Your sister is considering purchasing a tablet computer that utilizes RT as the operating system. She asks you if RT is any different from her Windows 8 desktop she has at home. What do you tell her? A. Unlike her Windows 8 PC, RT does not have a tile-based interface. B. RT is...
Friday, June 12, 2015 by Jay

science
5 L OF H2 GAS WAS COLLECTED OVER WATER AT 25 CELCIUS AND 750 MM PRESSURE CALCULATE THE VOLUME OF DRY H2 AT STP AQUEOUS TENSION AT 25 CELCIUS IS 23 MM
Friday, June 12, 2015 by ritika agarwal

Science
I have 59.73 grams of a solid dissolved into water. The total is now 115ML of water. I added the water into a beaker already containing said solid. I did not measure how much water I put into the beaker. 59.73g/115ML=0.51g/ML My question is. Is this the correct way to mix and ...
Thursday, June 11, 2015 by Dave

science
after starting from rest, a car acceleraters uniformly 1.2 m/s^2 for 20 s. it then continues driving at a constant velocity for 19s longer. what is the average velocity for 39 s ?
Thursday, June 11, 2015 by Anonymous

Science
What is the density of a substance with a mass of 0.0450 kg and a volume of 26.4 ml
Wednesday, June 10, 2015 by Diana

science
Two velocity each 5 ms/s are inclined to each other at 60degree. Find their resultant
Wednesday, June 10, 2015 by Animesh

Science
One of the most common commercial methods for the production of pure silicon that is to be used for the manufacture of semiconductors is the Siemens process (see Figure P5.3.5) of chemical vapor deposition (CVD). A chamber contains a heated silicon rod and a mixture of high-...
Tuesday, June 9, 2015 by Tyla

algebra
The price of a new computer is p dollars. The computer is on sale for 20% off. Which expression shows the savings that are being offered on the computer?
Tuesday, June 9, 2015 by jada

science
Ram is 35 kg sitting 120 cm away from the pivot while Hari is 30 kg sitting at another end of seasaw. How far should Hari sit from the pivot point? Calculate
Tuesday, June 9, 2015 by dips

SCIENCE
Joseph jogs from one end "A" to another end "B"of a straight road in 300 metre in 2 minutes 50 seconds and then turns around and jogs 100 metre back to point"c"in another 1 minute.What is the Joseph'S average speed and velocity from "A&...
Tuesday, June 9, 2015 by RAI

science
Which of the following properties of water explains its characterization as the universal solvent? Which of the following properties of water explains its characterization as the universal solvent? A. Kinetic energy of liquid water molecules B. High specific heat C. Polarity ...
Tuesday, June 9, 2015 by wedi

Kainantu sec..science(chemistry)
How many moles of O2 are there in the above sample at the initial temperature and pressure?
Tuesday, June 9, 2015 by Tema Andrew

Kainantu sec..science(chemistry)
A sample of O2 gas occupies 1.93L at a pressure of 10.0atm at 100 degree celsius. What volume will the sample occupy at stp?
Tuesday, June 9, 2015 by Tema Andrew

Kainantu sec..science(chemistry)
At stp what volume of SO2 gas will be produced when 2.00g of CS2 is burned
Tuesday, June 9, 2015 by Tema Andrew

Science
how many of earth's atmospheres is on you at sea level?
Monday, June 8, 2015 by Rosy

science
Two forces P and Q whose resultant is 10Newton are at right angles to each other. If P makes 30 degrees with resultant.Show me the workings of the magnitude of Q in Newton and the diagram of the vectors.
Monday, June 8, 2015 by Anonymous

science
A car is travelling at 20m/s along a road. A child runs out into the road 50m ahead and the car driver steps on the brakes pedal. What must the car’s deceleration if the car is to stop just before it reaches the child?
Monday, June 8, 2015 by abhishek

meyisi s s s
geography, life science, history, l o , maths lit, english and xhosa
Monday, June 8, 2015 by sinemvelo luthando

science
Arthropoda Chelicerata Merostomata (horseshoe crabs) Arachnida (spiders, mites, scorpions) Pycnogonida (sea spiders) Crustacea Copepoda (small crustaceans) Cirripedia (barnacles) Malacostraca (crabs, lobsters, shrimp) Uniramia Insecta (insects) Chilopoda (centipedes) Diplopoda...
Sunday, June 7, 2015 by wedi

physical science
A man applies a force of 150N to pull a 20kg box with a rope that makes an angle of 60percent with the horizontal.The box experience a kinetic friction of 15N. Calculate the acceleration of the box.
Saturday, June 6, 2015 by mandy

Science
A species of flowering plant produces vibrant blue flowers. The flowers attract both pollinators that spread the plant's pollen and herbivores that feed on the plant. An adaptation occurred through several generations of plant species, and the plant is now known for its ...
Friday, June 5, 2015 by Anonymous

science
A NEGLIGIBLY SMALL current is passed through a wire of length 15 m and of uniform cross-section 60x 10^7 m2 and its resistance is measured to be 50.what is the restivity of the material at the temperature of the experiment.
Friday, June 5, 2015 by sarita

science
Calculate the volume of solution that has a vapour pressure of 25.8 mbar and contains 200.3 g of galactose, C6H12O6, at a temperature of 22.0 °C. The vapour pressure of pure water at 22 °C is 26.40 mbar, the density of water is 1.00 g mL-1, and assume no change in ...
Friday, June 5, 2015 by Jane Smith

Science (Physics)
A conductor carries a current of 25 A and is at right angles to a magnetic field. The flux density is 0.8 Tesla and the length of the conductor in the field is 35 cm. Calculate the force acting on the conductor, and the value of the force if the conductor is inclined at 35 ...
Thursday, June 4, 2015 by Eren A

computer programming
HotelRoom class programming . Replace Disply_Number() and Display_Guest() methods by the methods Get_Number() and Get_Guest(), respectively , so that each returns a pointer to the corresponding instance variable. Recode main() as necessary .
Thursday, June 4, 2015 by Nancy

Physical science paper 1 june exam
What is Reflection?
Thursday, June 4, 2015 by Lonwabo

science
An electromagnetic calorimeter made of Pb that has inside a Co-60 source with the activity 4 Ci.The two gamma rays emmited have the energies 1.173 MeV and 1.332 MeV. Calculate the time after that the temperature of the calorimeter rises with T=10 K. C=92J/K (for Pb)
Thursday, June 4, 2015 by A.

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