Thursday
December 8, 2016

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

science help PLS
When Jane visits a beach, she notices a sea stack has formed offshore. Which of the following best describes what caused the sea stack to form? Erosion hollowed out the rock in a seaside cliff. Deposition moved sand from the beach into an offshore pile. A large number of ...
Wednesday, April 20, 2016 by Oscar

science
can you please tell me some alkalis you would have in your house xxx
Wednesday, April 20, 2016 by Anonymous

Science
calculate the weight acting on an object of mass 10kg Taking g=10m/s
Wednesday, April 20, 2016 by EDGAR

Science
what volume of NH3 gas at s.t.p. is required to neutralise 40cm3 of 2M H2SO4?
Wednesday, April 20, 2016 by Anonymous

science
To conserve water, an animal's kidneys can pump ions across cell membranes, allowing water to move by
Tuesday, April 19, 2016 by Steve

Political Science
You learned about the Democratic Peace Theory. Define this theory. Explain its strengths and weaknesses. Tell how it has been used to inform public policymaking. Now, explain whether you think it should be used in public policymaking, and why in a 250-300 words response.
Tuesday, April 19, 2016 by Scinceis

science
when copper metal is added to silver nitrate in solution, silver metal and copper (II) nitrate are produced. what mass of silver is produced from 100.g Cu?
Tuesday, April 19, 2016 by Sandy

Science- Electric and Magnetic Potential Energy
1. At which position will the bar magnets most likely experience the least magnetic potential energy between them? D - position 4 2. A positively charged test object is moving toward the positive source charge in an electric field. B - It's potential energy increases 3. ...
Tuesday, April 19, 2016 by ImLegit

science-college physics
2. A certain wire of length L, cross-sectional area A is extended by an amount ‘e’ by a force F. Given that the young’s modulus of the material of the wire is E, Show that the; a. Energy stored in the wire is given by the expression (5) b. Energy per unit volume...
Tuesday, April 19, 2016 by hamunyela morga

technology
You want to discard your old computer and want to securely erase the data from your hard drive. What can you use to do this and what is the process called?
Tuesday, April 19, 2016 by danielle

science
1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body. C. A living thing dies and its skeleton is left exposed to ...
Tuesday, April 19, 2016 by Help please

science
how to find a solution with high buffer capacity?
Tuesday, April 19, 2016 by ayya

science
find the resistance of a nichrome wire of length 2.2m& diameter 2mm.
Tuesday, April 19, 2016 by Samiksha

computer science
An Internet service provider has three different subscription packages for its customers: Package A: For $9.95 per month 10 hours of access are provided. Additional hours are $2.00 per hour. Package B: For $13.95 per month 20 hours of access are provided. Additional hours are...
Monday, April 18, 2016 by ignatius

computer science
Write a program that will ask the user to enter the amount of a purchase. The program should then compute the state and county sales tax. Assume the state sales tax is 4 percent and the county sales tax is 2 percent. The program should display the amount of the purchase, the ...
Monday, April 18, 2016 by ignatius

science
a certain mass of gas occupies 600 cm3 and exerted 1.325*10^5 Nm^-2 pressure. at what temperature would the volume of the gas be halved?
Monday, April 18, 2016 by Anonymous

science
of the following ,which do all fish have gills fins scales movable jaws (I chose )
Monday, April 18, 2016 by farihah

Science HELP PLEASE!!!
I cant get this stupid question, this is disgusting and I just want to get this over with. What the word for when blood rushes towards your penis and gets bigger. A. Erection B. Sperm C. Vagina D. Puberty
Monday, April 18, 2016 by Cynthia

science
what can you infer from the fact of all life on earth is related f you go back far enough?
Monday, April 18, 2016 by hey

Science
Write a paragraph or make a PowerPoint to explain how genetic variation and environmental pressures can lead to change in an organism. Write a second paragraph that describes an example of a plant or animal that has changed due to these factors.
Monday, April 18, 2016 by Brii

Science
Daltons idea that atoms cannot be divided into smaller parts was was disproved by the discovery of______? The description of the structure of the atom is called the________? In a water molecule, two atoms of hydrogen and one atom of oxygen shared electrons. A _________ bond is...
Monday, April 18, 2016 by Summer Moriarty

science
What is osmosis
Monday, April 18, 2016 by mihlali

science and calculations
Calculate the heat necessary to raise the temperature of 500kg of water in the generator of the refrigerator from 10degree Celsius to 40degree Celsius. The specific heat capacity of water equal to 4.2kj/kgk
Monday, April 18, 2016 by Augustine

science-college physics
1. A mass of 20 kg is suspended at the end of a rubber cord of diameter 2.0 mm and length 100 cm. Find the period of vertical oscillations of the mass. [Take young’s modulus E, for the rubber = 2.0 x 108 Nm - 2].
Monday, April 18, 2016 by hamunyela morga

Science (energy)
1. What similarities do nuclear energy and chemical energy share? Choose all that apply. A. Both are types of kinetic energy. B. Both are types of potential energy. [CORRECT!] C. Both involve magnetic energy. D. Both involve stored energy. [CORRECT!] 2. A student is trying to ...
Monday, April 18, 2016 by newbie

physical science
How long will a 1.2 kW electric kettle take to heat 0.8 kg of water from 20°C to 100°C?
Sunday, April 17, 2016 by yah

science
a boy whose mass is 69kg climbs a tree 10m high in 12s .calculate the work done and power developed
Sunday, April 17, 2016 by latela

Science
What obstacles did Darwin's theory of natural selection and evolution face and how did he overcome these? I know one would be scientists in those days having different theories (obstacle)...
Sunday, April 17, 2016 by Stoof

Science
Why the earth rotate each 24 hours?
Sunday, April 17, 2016 by The earth

Science
A man walks 5m towards east and turns right and moves 12m. The magnitude of displacement is
Sunday, April 17, 2016 by Sivasaran

science
carbon moboxide reacts with hudrogen to produce methanol chemical equation: balanced equation:
Sunday, April 17, 2016 by sTanley

Physics
Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade 10th Grade 11th Grade 12th Grade College Adult ...
Sunday, April 17, 2016 by Rameel

Science
A car of mass 1200kg increases its velocity from 20m/s to 60m/s in 8seconds. Calculate the acceleration force on the car.
Sunday, April 17, 2016 by Lucky chembe

science
a helium nuclide of mass M1 moving with a velocity Vo is incident on a stationary nuclide of mass M2. After collision M1 was deflected through an angle x and M2 an angle y. If the velocities of the nuclides after collision were V1 and V2 respectively show that for an elastic ...
Sunday, April 17, 2016 by Henry

maths littercy ,agricultural science ,life science ,tourism , life orientatiom, ndebele and english
i completed my matric last year , now i don't know which carrer should i do or follow and in which college or university
Sunday, April 17, 2016 by simphiwe

science
A charge of 10 coulombs has been travelling through the wire of a simple circuit,with a current of 3 A. How long has the current been flowing?
Sunday, April 17, 2016 by mihlali

science
how does the electric field in space change when the air in the space is replaced be dielectric oil?
Sunday, April 17, 2016 by mukul

science
How is the virtual image produced by a converging lens different from the virtual image from a diverging lens?
Saturday, April 16, 2016 by tina

algebra
A laptop computer is purchased for $5000 . Each year, its value is 70% of its value the year before. After how many years will the laptop computer be worth $300 or less
Saturday, April 16, 2016 by kate

Science
Write a paragraph or make a PowerPoint to explain how genetic variation and environmental pressures can lead to change in an organism. Write a second paragraph that describes an example of a plant or animal that has changed due to these factors. Include graphics or pictures.
Saturday, April 16, 2016 by Aaliyah

science help pls
Which of the following is a technique used in relative dating? Beta decay Index fossil correlation Isotope ratios Radiocarbon dating is it d pls help me
Saturday, April 16, 2016 by Oscar

science help PLS
Examine the following diagram. Place the labeled layers in order from youngest to oldest. Diagram showing a section of rock strata. The bottommost layer is labeled 'A'; the layer directly on top of layer A is labeled 'B'; the layer directly on top of layer B is...
Saturday, April 16, 2016 by Oscar

ph science
a flight attendant pulls a wheeled suitcase, applying a 64-N force at a 35 degree angle to horizontal. how much work does she do in pulling the suitcase 45m f=d/t=64+35=99/2x45=2227.5
Saturday, April 16, 2016 by dana

science
A wagon 8kg travelling due east with a velocity of 10m/s collides with a second wagon of mass 12kg travelling due west at 2m/s. After collision the wagon moves off at 3m/s due east. Determine the magnitude and direction of the velocity of the 12kg wagon after collision.
Saturday, April 16, 2016 by Lucky chembe

science
assuming that sea water is an aqueous solution of NaCl its density is 1.025g/mL at 20C temperature and NaCl concentration is 3.5%(by mass), the normality of the sea water?
Saturday, April 16, 2016 by rajesh

help ms. sue/ science
how is a parallel circuit different from a series circuit? Need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​!!!!!!!!!!!!!!!
Friday, April 15, 2016 by Sally

science help pls pls
A scientific law can be best described as an explanation of a specific relationship a series of observations with contradictory data a phenomenon which works under changing conditions a description of specific relationships under given conditions is it a pls help me
Friday, April 15, 2016 by Oscar

science help pls pls
Derek designed an experiment to demonstrate interactions between Earth systems. He cleared a patch of land in his backyard and poured a glass of water from a height of 12 inches above the ground. A depression was formed on the land at the spot where the water hit the ground. ...
Friday, April 15, 2016 by Oscar

i really need help with science pls help
A scientific theory is proposed after several valid investigations. This makes scientific theories elaborate descriptions of observations the most powerful explanation scientists have to offer unchangeable by other scientists over a period of time unacceptable to a majority of...
Friday, April 15, 2016 by Oscar

i really need help with science pls help
The Hawaiian Islands are examples of islands that formed over a hotspot. Based on this information, which of the following processes formed the Hawaiian Islands? Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled. Tectonic ...
Friday, April 15, 2016 by Oscar

science help
Which of the following sets of characteristics describe what we know about the dwarf planets? Orbits the sun, has sufficient mass to assume a nearly round shape, and lacks the gravity to clear items near its orbit. Has sufficient mass to maintain a round shape, orbits the sun...
Friday, April 15, 2016 by Oscar

science help pls pls pls
A new object, Object Y, was discovered outside our solar system. Object Y is small and rocky, is not a satellite of any other object, and it does not have enough gravity to clear away smaller objects near its orbit. The characteristics of Object Y most closely resemble those ...
Friday, April 15, 2016 by Oscar

science help pls pls
Which of the following terms refers to the foamy bubbles of a breaking wave? Duration Fetch Speed Surf is it d pls help me
Friday, April 15, 2016 by Oscar

science pls help
Which of the following causes the formation of surf on a breaking wave? Beach erosion Low wind speeds Deposition of sand on a beach Friction with the ocean bottom at the coast is it d pls help me
Friday, April 15, 2016 by Oscar

Science
11.)Create a scale for your model thermometer. Divide the distance between the two marks into 5-mm intervals. Starting with the lowest point, label the intervals on the straw 0, 1, 2, 3, and so on. Describe your scale below.
Friday, April 15, 2016 by #FreeGucci

Math
40 students are in the science club. 45% are girls. New girls enter the club and now the percentage of girls is 56%. How many new girls join the club?
Friday, April 15, 2016 by Laurie

Art
What did the Vogel's artworks communicate about their historical interests? They collected works that were culturally popular. They collected works that depicted revolutions. They collected works that depicted the history of cities. ( my choice ) They collected works that ...
Friday, April 15, 2016 by Janet

Science "HELP"!
Passage:The particles of matter are in constant motion. The energy of motion is called kinetic energy, so the particles of matter have kinetic energy. As matter becomes warmer, its particles move faster. As a result, their kinetic energy increases. Temperature is related to ...
Friday, April 15, 2016 by #FreeGucci

I REALLY NEED HELP WITH THIS SCIENCE
The three things you can sort them into are: Executive branch, Legislative branch, and Judicial branch. Things you can sort are: crafts bills, directs military, interprets laws, declares wars, decides court cases, can impeach president, vetoes bills, decides if laws are ...
Friday, April 15, 2016 by Patrick

science
a rock is thrown 1.8 meters into the air. find how fast it was thrown?
Friday, April 15, 2016 by stacy

Writing/ Science
I need help formulating topics for an essay. Topic: Why is it important to learn about local energy programs. How will one benefit from it. Thank you
Thursday, April 14, 2016 by Engineer

i need help with science pls
PLEASE HELP ME! Uranium can supply energy for the world's electricity without emitting harmful greenhouse gases. Which of these statements best describes an outcome of uranium mining? a. The people living near the mines may suffer from diseases due to radiation b. The ...
Thursday, April 14, 2016 by Oscar

i really need help with science pls help
One student made the incomplete diagram shown below to represent the relationship between magma, igneous rocks, and metamorphic rocks. Individual labels for Magma, Igneous rocks, and Metamorphic rocks set up in a triangular shaped diagram. Which of these is the correct next ...
Thursday, April 14, 2016 by Oscar

i really need help with science pls help
Two groups of scientists got different results while studying about the origin of the universe. Which of these statements is most likely true about the results of the two groups of scientists? They were not repeated and verified. They provide new testable ideas to strengthen ...
Thursday, April 14, 2016 by Oscar

science help pls pls
Which statement best explains why the Big Bang Theory is the leading scientific explanation of the development of the universe over time? Its experiments reject all old theories on the origin of the universe. Its experiments yield different results every time they are repeated...
Thursday, April 14, 2016 by Oscar

science help pls pls
Infrared radiations are produced when a changing electric field creates a longitudinal wave parallel to it longitudinal wave perpendicular to it changing magnetic field parallel to it changing magnetic field perpendicular to it is it d pls help me
Thursday, April 14, 2016 by Oscar

Science
Do all organisms get the same amount of energy? Why or why not? I would think that organisms get different amounts of energy since some need more and others need less. Like a plant would need different amounts of energy from a bear. A plant would get more energy, it is a ...
Thursday, April 14, 2016 by Scarlet

science
calculate weight by volume for 0.8molal urea,density of solution is 1.14gram per ml
Thursday, April 14, 2016 by kk

Science
Identify and describe the features found in the ocean basin floor
Thursday, April 14, 2016 by Nikki

Science
1. Which of the following is a correct description of a tornado? (1 point) a large swirling, low-pressure system that forms over the warm Atlantic Ocean a winter storm with wind speeds of at least 56 km/h and low visibility a violently rotating column of air in contact with ...
Thursday, April 14, 2016 by correct me if wrong.

science-college physics
Searches Related to 1. A mass of 20 kg is suspended at the end of a rubber cord of diameter 2.0 mm and length 100 cm. Find the period of vertical oscillations of the mass. [Take young’s modulus E, for the rubber = 2.0 x 108 Nm - 2
Thursday, April 14, 2016 by hamunyela

science
A torch bulb is marked with 2.4 volts and 0.75 A calculate the power dissipated
Thursday, April 14, 2016 by abongile

Maths Lit, Geography, English, LO, EGD, Afr.
I am very good at Geo and EGD. Because I didn't take Physical Science, I cannot get into varsity for any engineering degree courses. Can you make alternative career choices available that might include these two subjects?
Thursday, April 14, 2016 by Tanner Gibson

science
solubility product of Ca(OH)2at 25'C is 4.42*10^-5. A 500ml of saturatee solution of it is mixed with an equal volume of 0.4M NaOH .How muchb Ca(OH)2 PREcipited
Thursday, April 14, 2016 by Bhupal Guragain

Science
A car is travelling at 25m/s. The driver takes his foot off the accelerator and slows down. His decceleration is two metres per second squared. How long does it take him to reach speed of fifteen metres per second squared?
Thursday, April 14, 2016 by Marato

science/biology
introduction to cane toad
Thursday, April 14, 2016 by hannah

science
What is the effect of temperature on viscosity of liquid s and why
Thursday, April 14, 2016 by varun

science
which of the following is a posioned gas? option- (a)carbondioxide (b)nitrogen(c)none of these (d) carbon monoxide
Wednesday, April 13, 2016 by pankaj

science
Combining 0.280 mol of Fe2O3 with excess carbon produced 19.4 g of Fe.
Wednesday, April 13, 2016 by lex

Science at National University OF Samoa
2-bromobutane heat with 2M NaOH. What is the observation and the chemical reaction for the reaction?
Wednesday, April 13, 2016 by Terry Manu

science
10 students whose combined mass is 700 kg ride down 30 m in a elevator. How much thermal energy is produced in the elevator system by the loss in gravitational potential energy of the students
Wednesday, April 13, 2016 by nat

Science
If the Earth was tilted so that the Arctic and the Antarctic were in the equator's location, how would it affect the climate?
Wednesday, April 13, 2016 by Keon

Science
For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, the concentration of H2 is 3.00 mol/L, ...
Wednesday, April 13, 2016 by Kat

science help pls pls
A star is observed from two positions of Earth in its orbit, in summer and winter. Which of these is the best method to calculate the approximate distance of the star from Earth? measure the parallax and use it in calculations measure the red shift of emitted light and use it ...
Wednesday, April 13, 2016 by Oscar

Science
The opening to the tracheal system (respiratory system) in insects is the spiracle. trachea. alveolus. bronchus. stomata.
Wednesday, April 13, 2016 by Emma

science (correct please)
(1) Which of the following is an ectothermic vertebrate A) butterfly B) lizard C) eagle D) dog ~~~~~~~~~~~~~~~~~~~~~~~~~ My answer: B ~~~~~~~~~~~~~~~~~~~~~~~~~ (2) which of the following animals is an invertebrate? A) goldfish B) horse C) turtle D) grasshopper...
Wednesday, April 13, 2016 by Yuno Gasai

science
Which of the following is something you should do after severe weather occurs? - clean up flood waters *** - stay away from windows - create a family safety plan - invite friends to see the damage
Wednesday, April 13, 2016 by tay

Science
1. In the real world there are many insulators that you encounter every day. Give an example of a material that is an insulator and another material that is a conductor that you may use on a regular basis. Why do you think these materials were chosen for their particular ...
Wednesday, April 13, 2016 by Leet Speaker

science
What ia the Iupac name of [Cr(CN3)]CL3
Wednesday, April 13, 2016 by Shubham

Science
as a liquid is heated and changed into a gas what happens to molecules
Wednesday, April 13, 2016 by Girl with questions.

Science
Is jumping through a hoop an inherited trait for a dolphin?
Wednesday, April 13, 2016 by Anonymous

science
Explain what would happen if your epiglottis stopped working properly. A. you would have to go to dialysis to get your blood filtered everyday B. you would have to use an inhaler when the pollen or dust repeatedly bothered you C. you would choke on food when it went down the ...
Wednesday, April 13, 2016 by josiah

science
how many moles if gold are present in 49 gram of gold
Wednesday, April 13, 2016 by manya

Science
A constant volume of O2 gas is heated from 140C to 216C. The final pressure is 22.3 atm. What was the initial pressure?
Wednesday, April 13, 2016 by Chad

Science
Which of the following is true about chemical energy? A. Chemical energy can be stored more efficiently as glucose than it can be as ATP B. Chemical energy is stored when bonds in ATP are broken to form ADP C. Chemical energy is released when bonds in ADP are broken to form ...
Tuesday, April 12, 2016 by Jae

i need help with science pls
]Most of the drinking water in a location comes from a river. A steel plant is to be built close to the river. It would provide jobs and facilities to many people in the location. The steel plant would use a huge amount of river water. This might cause drinking water scarcity ...
Tuesday, April 12, 2016 by Oscar

science help pls pls
A pond is located beside an open mine. Mercury from the mine contaminates the river water. This is an example of single pollution multiple pollution point source pollution non-point source pollution would this one be c or b. im having trouble with this one.
Tuesday, April 12, 2016 by Oscar

science help PLS
A nuclear power plant produces huge amount of electricity. However, it dumps radioactive wastes into the sea. This has led to an increase in illness among people living along the coast. Which of these is the best method to solve this problem? Increase public awareness to close...
Tuesday, April 12, 2016 by Oscar

science help pls pls
Which of these surface features are formed when the acid in groundwater reacts with limestone? rivers and springs sinkholes and caves hot springs and geysers wetlands and volcanoes is it b pls help me
Tuesday, April 12, 2016 by Oscar

science check
The lake water in a location in Florida has been found to contain high levels of fecal coliform. What are people in the location most likely to do? breed fish in the lake stop swimming in the lake reduce their water consumption install water filtering equipments in their ...
Tuesday, April 12, 2016 by Oscar

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Homework Help: Computers