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August 3, 2015

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

Science
Which of the following is a quantitative property of minerals? A.Cleavage B.Hardness C.Luster D.Streak I'm thing Cleavage or Hardness but i'm not sure can someone help?
Wednesday, December 3, 2014 by Clueless girl

science
A jellyfish can propel itself with jets of water pushed out of its bell, a flexible structure on top of its body. The elastic bell and the water it contains function as a mass-spring system, greatly increasing efficiency. Normally, the jellyfish emits one jet right after the ...
Wednesday, December 3, 2014 by Anonymous

Science
The Ka for the H2PO4–/HPO42– buffer is given by the equation: Ka= ([HPO4^-2]gamma [H^+])/[H2PO4^-]=10^-7.20 What is the pH of a 2:3 mixture of H2PO4– to HPO42– at 0.10 M ionic strength? (See the table for the activity coefficients.) I just am not sure how ...
Wednesday, December 3, 2014 by Cat

Science
Polysaccharides break apart by the process of hydrolysis and need _________ for this process. Can you please help me fill in the blank.
Wednesday, December 3, 2014 by Steph

Science
If a cheetah is able to accelerate at 15.0 m/s2 from a stand still, what speed will it reach after 2.50 seconds?
Wednesday, December 3, 2014 by Unknown

English
(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
Wednesday, December 3, 2014 by Odalis

science
Discuss the results of your research about the roles of nature versus nurture on human health. Share your opinion about how an individual’s genetic makeup interacts with nutrition, smoking, drug use, or exercise to affect the quality and length of life. Back up your ...
Wednesday, December 3, 2014 by schoolnerd

Science
What is the total mass when you pour 100 g of vinegar into a flask and add 10 g of baking soda in a flask. Also what is the chemical formula for this. how can we change the formula so the experiment will be accurate. Thanks
Wednesday, December 3, 2014 by Gayle

Improving writing
Background Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides secretarial support ...
Wednesday, December 3, 2014 by Camilla

Science
How can I create a story of how my " constellation is formed? '' My teacher gave me this assignment. I have to create my own " Name" constellation, in this case its petasus because according to the chart I placed the dots down and it formed a hat. In ...
Tuesday, December 2, 2014 by Thi.

Science
Scorpius is one of the oldest constellations known - possibly even one of the original six signs of the zodiac. The constellation was once much larger, but the western portion representing the claws of the scorpion was given to Libra. Is this considered the constellation's...
Tuesday, December 2, 2014 by Thi.

Science Help!!!!
What form of pollution, if any, does energy source cause? My answer Air pollution?
Tuesday, December 2, 2014 by callie

science
how many seconds would it takes a boat to accelerate from 13m/s to 20m/s over a distance of 1.25 km ?
Tuesday, December 2, 2014 by neljoy

Science
make a paragraph about your favorite thing about winter? someone please help
Tuesday, December 2, 2014 by science

Earth Science
Which of the following statements correctly describes the asthenosphere? 1- it is thin cold and rigid layer 2- it is the source of the earth's heat 3- it permits plate motion 4- it occurs only near subduction zones My answer is 1
Tuesday, December 2, 2014 by Steve

science
Sarah wants to use a model to get an idea of how far away the stars are. She uses a marble to represent the Earth, and she places a basketball 1 m away to represent the Sun, which is the nearest star. If Sarah wishes to keep the distances between objects in her model at an ...
Tuesday, December 2, 2014 by lisa

science
after a rock layer is eroded, whick additional event must occur to create and unconformity, or a gap , in the geologic record
Tuesday, December 2, 2014 by Anonymous

Computers
You have purchased an Apple desktop computer and want to set it up so that you can access your computer desktop when you are on the road. How might you do this?
Tuesday, December 2, 2014 by MeME

Science one question!
Explain how gravitational, electrical and magnetic force act on a maglev train? I just need help on magnetic thanks!
Tuesday, December 2, 2014 by Sandy

history..maths litercy..geography..life science..isizulu..life orentation..
im doing grade 11 and next year im doing grade12 so my question is that i want to be a boilermaker and i want to work in sasol so i dont know if this sbject is right to do boilermaker if you have any information please contact me on 0736124260 or 0739615308 in june exam my ...
Tuesday, December 2, 2014 by gift skhanyiso vilakazi

Science Please Help
Which of the following is a testable hypothesis? A. Altered temperature may affect gas production, which measures fermentation rate. B. Does temperature affect fermentation? C. Temperature decreases will affect gas production and fermentation much of the time. D. If ...
Tuesday, December 2, 2014 by Anonymous

Science Please Help
Which of the following is a testable hypothesis? A. Altered temperature may affect gas production, which measures fermentation rate. B. Does temperature affect fermentation? C. Temperature decreases will affect gas production and fermentation much of the time. D. If ...
Tuesday, December 2, 2014 by Anonymous

language arts
When Louise Meyer was five years old, her mother took her to a science museum. That day, young Louise encountered her first snakes, and she's been fascinated with the reptiles ever since. Meyer now breeds snakes for educational programs. She takes her slinky friends to ...
Tuesday, December 2, 2014 by hope

Computer Applications
John is creating a presentation. Before he starts, he takes into consideration several aspects that can help to determine how the presentation should be set up. Three of the following are important considerations at this initial stage. Which of the following does John not have...
Tuesday, December 2, 2014 by Tiana

Science
Both a father and mother have dimples. Their son has dimples, but their daughter does not. Which genes, DD, Dd, or dd, does each family member have? Father and Mother= DD Son= Dd Daughter=dd
Monday, December 1, 2014 by Hayden

Language Arts
When Louis Meyer was five years old, her mother took her to a science museum. That day, young Louis encountered her first snakes, and she's be fascinated with the reptiles ever since. Meyer now breeds snakes for educational programs. She takes her slinky friends to schools...
Monday, December 1, 2014 by Callie

Language Arts
When Louis Meyer was five years old, her mother took her to a science museum. That day, young Louis encountered her first snakes, and she's be fascinated with the reptiles ever since. Meyer now breeds snakes for educational programs. She takes her slinky friends to schools...
Monday, December 1, 2014 by Callie

science
What is the difference between sexual reproduction and asexual reproduction?
Monday, December 1, 2014 by bubbles

Science.. Need help ASAP!
How is an area's topography determined? a.By using an area's longitude and latitude b.By using an area's scale c.By using an area's elevation, relief, and landforms * d.By using an area's elevation, longitude, latitude How are lakes and ponds similar? a. ...
Monday, December 1, 2014 by Lelo

Science
Suppose that you heated a sample of a hydrated ionic compound in a test tube. What might you expect to see inside the test tube, near the top of the test tube? Explain please i really am stumped on this question...
Monday, December 1, 2014 by katie

Science.. Need help ASAP!
How is an area's topography determined? a.By using an area's longitude and latitude b.By using an area's scale c.By using an area's elevation, relief, and landforms d.By using an area's elevation, longitude, latitude How are lakes and ponds similar? a. ...
Monday, December 1, 2014 by Lelo

Science.. Need help ASAP!
How is an area's topography determined? 1.By using an area's longitude and latitude 2.By using an area's scale 3.By using an area's elevation, relief, and landforms 4.By using an area's elevation, longitude, latitude How are lakes and ponds similar? 1. ...
Monday, December 1, 2014 by Lelo

Science IPS
A mass of 10 g of sodium nitrate is dissolved in 10cm3 of water at 80 degrees (c). As the solution is cooled, at what temperature will a precipitate first appear?
Monday, December 1, 2014 by Kailey

science
A jellyfish can propel itself with jets of water pushed out of its bell, a flexible structure on top of its body. The elastic bell and the water it contains function as a mass-spring system, greatly increasing efficiency. Normally, the jellyfish emits one jet right after the ...
Monday, December 1, 2014 by Anonymous

science
can we predict when a hurricane will occur? explain. I have tried so man website and still no answer.. please help
Monday, December 1, 2014 by Nicole

science
when do huricanes happen??
Monday, December 1, 2014 by Nicole

Science
~~~~~~~~~~~~~~~~~~~~~~~~~Choices *Extra Words In The Word Box (Will Be Leftovers)* -Landfills -Limiting Factor -Non~point Source -Habitat Destruction -Stop -Migration -Biodiversity -Carbon Dioxide -Reverse -Carrying Capacity -Commensalism -Selective Cutting -Extinction -...
Monday, December 1, 2014 by Abby

science
Wood fragments from the floor of a palace in Syria - Syro-Hittite period. Date: 675 ± 50 years BCE?
Monday, December 1, 2014 by Alexander

science
An electron of mass 9.11 × 10-31 kg and charge 1.6 × 10-19 C passes through a cathode ray tube with a velocity of 3.7 × 107 m/s. It enters a magnetic field of flux density 0.47 mT at a right angle. What is the radius of curvature of the path in the magnetic ...
Monday, December 1, 2014 by Anonymous

check my science hw please.
31. Which of the following is an example of a global environmental choice? A. a student deciding to ride a bicycle to school B. a family deciding to recycle their newspapers C. a town meeting about a new nature refuge. D. nations meeting to discuss the ozone layer. I got C as ...
Sunday, November 30, 2014 by Sam

check my science hw please.
30. Laws can help endangered species by prohibiting A. Captive breeding B.habitat preservation C diversity of genes D. products made from the species I got D, I have a feeling that this may be wrong.
Sunday, November 30, 2014 by Sam

check my science hw please.
26. In the last few centuries, the number of species becoming extinct on Earth has A.decreased dramatically B. decreased slightly. C. increased slightly. D.increased dramatically I think it should be C.
Sunday, November 30, 2014 by Sam

check my science hw please.
25. All of the following factors affect an area's biodiversity EXCEPT A. areas B.number of endangered species C. climate D. diversity of niches. I got C for my answer.
Sunday, November 30, 2014 by Sam

check my science hw please.
24. can provide an economic benefit to A. drug companies B. tourists C.hikers D.endangered species I got A for my answer.
Sunday, November 30, 2014 by Sam

check my science hw please.
18. Which of the following would be a cost of drilling for oil in Antarctica? A. The supply of heating fuel would be increased. B.There would be a greater opportunity to study wildlife there. C. An oil spill could harm food sources for penguins. D. Many new jobs would be ...
Sunday, November 30, 2014 by Sam

science
10. One group of gases that is responsible for destroying ozone in the ozone layer is A.car exhaust fumes B.CFCs C.nitrogen oxides and sulfur oxides D. Carbon monoxide and carbon dioxide I got B for my answer.
Sunday, November 30, 2014 by Sam

Physical Science
Complete and balance the equation for the following single-replacement reactions. (Use the lowest possible coefficients. Omit states-of-matter from your answer.) Ni + Cu(NO3)2(aq)-->
Sunday, November 30, 2014 by Darrel

science
A jellyfish can propel itself with jets of water pushed out of its bell, a flexible structure on top of its body. The elastic bell and the water it contains function as a mass-spring system, greatly increasing efficiency. Normally, the jellyfish emits one jet right after the ...
Sunday, November 30, 2014 by Jason

Religion/ Social Studies/ Science
Please, someone tell me who was it that made the world. Thank you.
Sunday, November 30, 2014 by sharkeesha

science
what is pollution
Sunday, November 30, 2014 by Anonymous

Science
A 40.0 g block of ice at -15 degrees C is dropped into a calorimeter (of negligible heat capacity) containing water at 15 degrees C. When equilibrium is reached, the final temperature is 8.0 degrees C. How much water did the calorimeter contain initially? Specific heat of ice ...
Saturday, November 29, 2014 by Ciara

Science
The acceleration of gravity is 9.8 m/s2 . What is the magnitude of the total force on a(n) 94 kg driver by the dragster he operates as it accelerates horizontally along a straight line from rest to 60 m/s in 8.2 s? Answer in units of kN
Saturday, November 29, 2014 by jocelyn

science
a rectangle steel block of dimension 10m multiple by 3m multiple by 2m, has mass 45kg calulate the density of the block.
Saturday, November 29, 2014 by Anonymous

Science
For my science (biology) coursework i am doing an experiment involving photosynthesis- the cabomba experiment. I need to know 1- the variables that are controlled and why 2- what equipment is used and why PLEASE HELP... THANK YOU
Saturday, November 29, 2014 by Hifza

English
1. I have to do scince and math homework tonight. 2. I have to do my science and math homework. ------------ Are both grammatical? Which one is commonly used? Do you have other way of expressing?
Saturday, November 29, 2014 by rfvv

science
an object has an electric charge of +12. it loses 10 electrons. what is the new electric charge on the object?
Friday, November 28, 2014 by deanna

SCIENCE
We did a radioactive decay and half life lab with m&ms and I do not understand these conclusion questions: 1. how many half lives would it take for 500 nuclei to decay to 6.25% of the original number of nuclei? My ans: 3125?- do not think that's right! 2. Is there any way ...
Thursday, November 27, 2014 by Bethany

Science
What volume of 0.050M sodium hydroxide is needed to react with 25cm3 of 0.068M ethanoic acid?
Wednesday, November 26, 2014 by Connor

environmental Science
the entire area of land that a river drains is called
Wednesday, November 26, 2014 by Anonymous

Environmental Science
what did Thomas Malthus believe
Wednesday, November 26, 2014 by Anonymous

Science Help Please
Which of the following is not among the advantagees of generrating nuclear energy? A.it does not release carbon dioxide into the atmosphere B. it does not require a specialized process or involve any risk C. it does not release chemicals that cause acid rain D. it releases ...
Tuesday, November 25, 2014 by Callie

science
explain how mutations in dna affect the traits of an individual
Tuesday, November 25, 2014 by anon

SCIENCE BUT I REALLY NEED HELP
genes are specific sections of ___ To pass its traits on to the next generation, organisms must ____
Tuesday, November 25, 2014 by anonomyss

Science
This will help explain another question I have. So,what is the pattern that occurs when magnetic waves are spread out through the visible spectrum?
Tuesday, November 25, 2014 by Flabbergasted

Science 1 easy question!!!!
If new information about the behavior of atoms is discovered and verified, then revisions will need to be made to the current___ My answer: Atomic model?
Tuesday, November 25, 2014 by check my answer

Science 1 easy question!!!!
One way the modern atomic model differs from Thomsons atomic model is that electrons are no longer scattered throughout an atoms positive matter like chocolate chips in cookie dough, instead each electron is outside of the nucleus occupying a specific ______. My answer: Orbital?
Tuesday, November 25, 2014 by check my answer

Science 1 easy question!!!!
Is K^+1 and F^-1 an ionic bond? My answer: yes
Tuesday, November 25, 2014 by Anonymous

Science!
An index fossil must be? a) older than 1 billion years. b) smaller than other fossils around it. c)larger than other fossils around it. D) unique in its appearance. pleases help someone i don't really know but my best guess is a)
Tuesday, November 25, 2014 by kitty

science
what cause sea floor spreading
Monday, November 24, 2014 by Ally83410

Science
2 ml of stock antibiotic (64 mg/ml) was diluted into a test tube containing 2 ml of broth (final volume is 4). A series of 2-fold SERIAL DILUTIONS were performed by transferring 2 ml to three other tubes, consecutively (final volumes now 2 ml in each tube). The final ...
Monday, November 24, 2014 by Anonymous

science
how many moles of oxygen gas are necessary to form 0.737 moles of carbon dioxide
Monday, November 24, 2014 by Jennifer

int.science
The earth can be considered a heat engine because it receives heat from the sun and converts it into mechanical energy to produce winds and evaporate water. True False
Monday, November 24, 2014 by Casey

chem/science
A piece of an aluminum can was cut into small pieces. Then 0.422 g of the chips from the can was used to prepare potassium alum according to the procedure we used. Calculate the theoretical yield (in g) of potassium alum that could be obtained in the reaction. (Alum MW=474.41 ...
Monday, November 24, 2014 by Caroline

Int.Science/laws of thermodynamics
Watch the heat engine animation in the lesson text above. Does this animation illustrate a "new and improved" heat engine? yes no
Monday, November 24, 2014 by Casey

Earth Science
Describe the difference in evolution between a supercell that develops in an environment with unidirectional wind shear and a supercell that develops in an environment with veering winds. What is causing this difference in evolution? THANKS!!
Monday, November 24, 2014 by Sarah

science
An athlete executing a long jump leaves the ground at a 27.7∘ angle and travels 7.60m.If this speed were increased by just 5.0%, how much longer would the jump be?
Sunday, November 23, 2014 by jaime

Science
Which of the following electromagnetic waves is not used for communication?
Sunday, November 23, 2014 by Claire

science
just being curious, why does hurricane occur?? thanks
Sunday, November 23, 2014 by nicole

chemistry
The National Institute of Science and Technology (NIST) kinetics database lists the rate constant, k, of a particular gaseous reaction as 8.56× 10–10 cm3·molecule–1·s –1 at 298 K. convert to units of M-1 s-1. convert rate constant to units of...
Sunday, November 23, 2014 by anon

Science PLEASE HELP
How does Exothermic and Endothermic reactions affect the rate of a reaction? Please help. I need something that will be easy for me to understand and adopt into my own words. Thank You :)
Sunday, November 23, 2014 by Anonymous

science
What r 4 alkali's that u would find in the house????? Luv Sara xxxx
Sunday, November 23, 2014 by Sara

Science
How does Exothermic and Endothermic reactions affect the rate of a reaction? Please help. I need something that will be easy for me to understand and adopt into my own words. Thank You :)
Sunday, November 23, 2014 by Anonymous

science
Rates of Reactions  I am conducting a experiment on increasing the rate of a reaction by increasing the surface area. For this I am reacting hydrochloric acid and marble chips.  Variables:-  -Independent: the mass of marble chips  -Dependent: The volume of ...
Sunday, November 23, 2014 by Heena

Social Science
Where can I find information on the difference between English policing and American policing, without using wikipedeia? I found some information but is not showing a difference. Thank you
Saturday, November 22, 2014 by Demi

Science
changes in the carbon cycle cause global temperatures to rise how might this affect the water cycle
Saturday, November 22, 2014 by Cindy

science
If there is a block of cheese with a volume of 1200 cm, and a mass of 2 kg (2000 g) what would be its mass-to-volume ratio be in g/cm3?
Saturday, November 22, 2014 by Victoria

science
which of the following is a characteristic of karst topography? a. caverns b. glaciers c. alluvial fans d. dunes
Saturday, November 22, 2014 by Eden S.

computer science
What are the Control Identifiers, Domain, in the Layered Security Solution Report?
Saturday, November 22, 2014 by Freeman

Science
uncertainty for a tenth of a mm?
Saturday, November 22, 2014 by Anonymous

Science
what is an uncertainty? From reading the internet, is it a way to express potential error and that the actual value is between +/-#? what would be the uncertainty for this: electronic balance measuring to the tenth of a gram? is it +/- 0.05?
Saturday, November 22, 2014 by Anonymous

science
an object's resistance to change in motion is called is A. Density B. Inertia C. Mass D. Degrees
Friday, November 21, 2014 by edu

science
As an object get farther from earth is A. its weight increase B.it weight decrease C. it mass decrease D. it weight remains the same I am not sure but is it A(or b)
Friday, November 21, 2014 by edu

science
which of the following shows the path followed by nerve impulses in a reflex motor neurons,interneurons in brain,sensory neurons or sensory neurons,interneurons in brain, motor neurons
Friday, November 21, 2014 by Anonymous

Science Help
Which of the following is not a goal of the clean water act? A. Controlling water pollution from point sources B. Encouraging voluntary cooperation by citizens related to nonpoint sources of pollution. C. Educating citizens about the importance of reducing pollution D. ...
Friday, November 21, 2014 by callie

science
4 answers energy flow in ecosystem?
Friday, November 21, 2014 by sadie

Science Help
Which of the following statements describes the conservation od a natural resource? A. A factory burns coal to run its machines. B. A solar energy company harvests energy from sunlight. C. Lights in a house are turned off when not in use. D. A wind energy company covers a ...
Friday, November 21, 2014 by Callie

Science Help
Renewable resources are considerered better for the enviorment because A. They are less expensive to harness. B. Once they are harnessed, they can be replaced. C. They do not cause any pollution. D. Using renewable resources encourages people to plant more trees. Is the answer...
Friday, November 21, 2014 by Callie

Science Help
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. Is the answer C? Thank you
Friday, November 21, 2014 by Callie

Science Help
Which of the following is not a nonrenewable resource? A. Oil B. Petroleum C. Corn D. Gasoline Is the answer A? Thank you
Friday, November 21, 2014 by Callie

Science Help
Using coal for fuel releases pollution into the atmosphere. Why do people continue to use coal if it causes pollution? A. Using more coal reduces the amount of pollution from using oil. B. Using coal is realtivly inexpensive. C. Mining coal helps scientists unconver fossils. D...
Friday, November 21, 2014 by Callie

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Homework Help: Computers

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