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November 28, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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Science -Check Answers-
1. A kitchen ceiling light has five light bulbs on it. When one of the lights goes out, the other four bulbs stay lit. This is an example of a series circuit. True OR False My Answer: True 2. Adding a _______________ to an electric circuit would increase the magnetic field ...
Wednesday, May 21, 2014 at 2:07pm

Science
When a cell is infected with a virus, what is produced for future protection? i thought it was good bacteria but i don't think a cell can do that. So confused.
Wednesday, May 21, 2014 at 2:04pm

language arts check
The word simulation originally refers to the act of imitating. What meaning of the word is used in this excerpt from "What Makes Teens Tick?" "In an experiment using a driving-simulation game, he studied teens and adults as they decided whether to run a yellow ...
Wednesday, May 21, 2014 at 1:58pm

Science(chemistry)
Give one word/term for the following description in any given chemical compound,the elements always combine in the same proportion with each other
Wednesday, May 21, 2014 at 1:55pm

Science/Health
2. Which of the following explains why the heart is organized so that it pumps blood to two different locations? A. to supply blood to two different sides of the body B. to allow a way for the blood to pick up new blood cells C. to move oxygen-poor blood through the lungs and ...
Wednesday, May 21, 2014 at 1:54pm

science
Write balanced chemical equations (using symbols) for the following reactions 1.hydrochloric acid reacts with magnesium to form magnesium chloride and hydrogen 2.Nitrogen monoxide burns in oxygen to form nitrogen dioxide
Wednesday, May 21, 2014 at 12:05pm

Help Mrs.Sue LA
Courage to Speak “Any volunteers?” Ms. Chavez scanned the class. Ming slouched farther down in her seat. “Come on now, you’ll all have to interview someone sometime this year. No one wants to go first? Okay, I’ll just have to choose someone.” I am...
Wednesday, May 21, 2014 at 10:51am

science
ZnS(aq) + 2HCl(aq) --> ZnCl2(aq) + 2H2S(g) what happens in this reaction means what changes& colour happens????
Wednesday, May 21, 2014 at 9:00am

science
i need to find the enthalpy for COF2 F2 (g) + CO (g) --> COF2 (g) i found -507 but i am not sure if it is correct
Wednesday, May 21, 2014 at 6:58am

Science
To lift a load to the roof, you apply 21 N of force to a pulley. The pulley applies 21 N of force to the load. What is the mechanical advantage of the pulley? A.0 B.1 C.40 D.21
Wednesday, May 21, 2014 at 1:04am

Science
The foreskin, a loose fold of skin that covers the penis is also called the ________. A. Spongiosum B. Androgen C. Prepuce D. Scrotum I think C 99% sure, but my book says its preouce, not prepuce. (Maybe it's a typo?)
Tuesday, May 20, 2014 at 10:44pm

Science
1) A person roller skates down a street heading east. Which of the following would be true about friction in this scenario? a; friction does not affect the skates in the scenario b; friction pulls the skates wheels eastward c; friction pulls the skates wheels downward, toward ...
Tuesday, May 20, 2014 at 10:29pm

Science
Which of the following best describes the movement of an object at rest if no outside forces act on it? a; it will move due to inertia b; gravity will eventually cause it to move c; it will stay at rest due to inertia d; it will stay at rest due to gravity...
Tuesday, May 20, 2014 at 10:24pm

Science
The male sexual response includes erection and orgasm accompanied by ________. A. Ejaculation of semen B. Relaxation C. Restoration D. Stimulation I think it's B,but I also think it is A. Not sure which is the best choice.
Tuesday, May 20, 2014 at 10:16pm

Science
If a loaded truck that can accelerate at 1 m/s2 loses its load and has one-half of the original mass, what acceleration can it attain from the same driving force?
Tuesday, May 20, 2014 at 5:52pm

Science
A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she opens the parachute.
Tuesday, May 20, 2014 at 5:21pm

Science
Use Newton's 1st law of motion to explain how wearing a seat belt in a moving car could help prevent injury.
Tuesday, May 20, 2014 at 5:19pm

BUSINESS RESEARCH
A data processing analyst for a research company finds that a preliminary computer run of survey results that his company conducted for a client show that consumers love the client's new product. Based on that information, the analyst buys a large block of the client's...
Tuesday, May 20, 2014 at 12:18pm

Science
A person roller skates down a street heading West. What is true about friction in this case? the choices are 1- does not effect the skates 2- pulls the skates eastward 3- pulls the skates downward toward the center of the earth 4- pulls the skates westward my answer is # 4
Tuesday, May 20, 2014 at 5:30am

Science
If a bowling ball hits a wall with a force of 6 N the wall exerts what force back on the bowling ball? the choices are 0N 3N 6N 12N I think its 6N
Tuesday, May 20, 2014 at 2:29am

Science
A 2,500 kg car moves at 15 m/s squared, 15 m/s squared is the ? a-acceleration b- force c- velocity d-speed My answer is speed
Tuesday, May 20, 2014 at 12:27am

Science
A team of dogs pulled a sled across the snow a distance of 45.5 meters with a horizontal force of 200 newtons. How much work did the team of dogs do?
Monday, May 19, 2014 at 10:20pm

science help
Every individual, including young people, can make decisions to use resources wisely. Use the terms reduce, reuse, and recycle to explain how the students in the image can help minimize solid waste.
Monday, May 19, 2014 at 9:47pm

Science
What is the force that results from a 3,000kg car accelerating at 20.00 m/s2? a;) 150.0 N b;) 3,000 N c;) 3,020 N d;) 60,000 N
Monday, May 19, 2014 at 6:20pm

Algebra
the table shows the results of a survey of college students. find the probability that a student's first class of the day is a humanities class, given the student is female. First class of the day for college students male female humanities 70 80 science 50 80 other 60 70
Monday, May 19, 2014 at 6:13pm

Science
Which biome is found near the polar ice caps?
Monday, May 19, 2014 at 4:40pm

Science
A person roller skates down a street heading West. What is true about friction in this case? the choices are 1- does not effect the skates 2- pulls the skates eastward 3- pulls the skates downward toward the center of the earth 4- pulls the skates westward my answer is # 4
Monday, May 19, 2014 at 4:39pm

Science
If a bowling ball hits a wall with a force of 6 N the wall exerts what force back on the bowling ball? the choices are 0N 3N 6N 12N I think its 6N
Monday, May 19, 2014 at 4:35pm

Science
What are some ways we directly and indirectly release carbon into the atmosphere?
Monday, May 19, 2014 at 3:52pm

Science
Look at the table of radioactive isotypes below. Isotype Type of Decay Uranium-238 Alpha Nickel-63 Beta Iodine-131 Beta Radium-226 Alpha With the help of a periodic table, predict the element that forms in each case. I'm confused by this. Am I suppose to research each of ...
Monday, May 19, 2014 at 3:10pm

science help
1.how do fossil fuels contribute to air pollution ? a) by releasing carbon dioxide into the air b) by recycling oxygen c) by reversing the greenhouse effect d) by releasing nitrogen into the air 2. How can human population growth affect ecosystems like rain forests a) human ...
Monday, May 19, 2014 at 2:21pm

Science
A person roller skates down a street heading West. What is true about friction in this case?
Monday, May 19, 2014 at 2:01pm

science
1.How can using biomass fuel instead of gasoline in car engines help conserve natural resources ? A) it makes cars run faster b) it burns more fossil fuels c) it reduces the use of coal d) it uses a renewable source 2.Chemical runoff from fields oil spills and erosion is the ...
Monday, May 19, 2014 at 1:47pm

Science
If a bowling ball hits a wall with a force of 6 N the wall exerts what force back on the bowling ball?
Monday, May 19, 2014 at 1:41pm

Science
1. Which of the following types of waste should not be recycled at home? a. expired medicines b. glass bottles c. papers d. plastic bags 2. Which of the following is NOT a method of disposing hazardous wastes? a. burying them in deep rock layers b. incinerating them c. putting...
Monday, May 19, 2014 at 1:14pm

Science
the ventricle in a single-loop circulatory system is responsible for A. receiving blood from the body. B. pumping blood out to the gills. C. pumping blood out to the body. D. receiving blood from the gills. I think it is A or C. Thank You.
Monday, May 19, 2014 at 12:32pm

science
A body with a mass of 10 kg is placed on a smooth surface. It is pulled by a spring balance and the acceleration is 5 m/s². What should the reading on the spring balance be?
Monday, May 19, 2014 at 9:43am

Science
A table, with four legs, weighs 5 N. The area of contact of one of its leg with the ground is 2.5 x 10-3 m². A man, with a mass of 9 kg, sits on the centre of the tabletop. What is the total pressure exerted on the ground by the table with the man on it?
Monday, May 19, 2014 at 9:39am

math
selling price of computer is $75 less than 2 times wholesale price. selling price of a tv is $550, what equation is used to find wholesale price of tv
Monday, May 19, 2014 at 4:00am

Science
Please help! Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the country. Explain what the benefits of wind power are and why it is not available to ...
Sunday, May 18, 2014 at 9:45pm

science help
1.Why do the islands of Indonesia have many volcanoes and experience frequent earthquakes? A.The islands are located at the boundaries of tectonic plates. B.Many hotspots are found near the islands. C.Magma is less abundant under Earth’s crust near the islands. D.The ...
Sunday, May 18, 2014 at 9:09pm

Science : Please Help!
Many people who care about conserving natural resources would choose to use wind energy to power their homes. However, wind power is not an option for people in many parts of the coutnry. Explain what the benefits of wind power are and why it is not available to everyone in ...
Sunday, May 18, 2014 at 6:51pm

language arts
Which sentence is punctuated correctly? a)Briana, my partner for the science project had some great ideas. b)Briana my partner for the science project, had some great ideas. c)Briana, my partner, for the science project had some great ideas. d)Briana, my partner for the ...
Sunday, May 18, 2014 at 6:17pm

language arts
Which sentence is punctuated correctly? A) My grandmother is a smart, funny, kind person. B) Bright,red, leaves drifted down from the maple tree. C) On Thanksgiving we enjoyed a delicious, turkey dinner. D) My friend and I just saw an exciting, science fiction movie. Is the ...
Sunday, May 18, 2014 at 3:53pm

science
5. Which of the following causes clouds to form ? a) air cooling to its dew point b) water vapor condensing as it rises into cooler air c) air pressure rising above normal d) air pressure falling below normal 6. Which of these is least liekly to influence temperature ? a) ...
Sunday, May 18, 2014 at 1:38pm

science
1. meteorologists notice a low pressure area developing over warm ocean water. which type of storm is likely to form? a)tornado b)hurricane c thunderstorm d)blizzard 2. which of the following is a way that some animal's bodies adapt to living in extremely cold climates ? a...
Sunday, May 18, 2014 at 12:14pm

Science
Apart from Water and Salt what other things/substances are neutral?
Sunday, May 18, 2014 at 9:57am

Science Physics
Sophia exerts a steady 40-N horizontal force on a 8-kg box resting on a lab bench. The box slides against a horizontal friction force of 24 N. Show that the box accelerates at 2 m/s2.
Saturday, May 17, 2014 at 2:05pm

Science Physics
Madison pushes with a 160-N horizontal force on a 20-kg crate of coffee resting on a warehouse floor. The force of friction on the crate is 80 N. Show that the acceleration is 4 m/s2.
Saturday, May 17, 2014 at 2:03pm

Science help PWEASEEEE
Which of the following is the most effective way to preserve biodiversity? A) captive breeding B) habitat destruction C) habitat preservation D) habitat fragmentation
Friday, May 16, 2014 at 3:04pm

Science
1. Which of the following describes an example of land reclamation? A. After an area is mined for copper, the soil is replaced and new plants are planted. B. After a forest is clear-cut, desertification occurs. C. After a forest is clear-cut, it is mined for copper. D. After ...
Friday, May 16, 2014 at 3:03pm

Science
The greater the change in speed, the less the light wave is reflected. False?
Friday, May 16, 2014 at 10:59am

science
All the processes that form mountain ranges are known as
Friday, May 16, 2014 at 10:42am

Language Arts (english)
1.In general terms, how do the townspeople in “The Handsomest Drowned Man in the World” react to the body which washes up on their shore? 2.Why do the townspeople react to Esteban as they do? What is he to them? 3.What is a fable, how might “The Handsomest ...
Friday, May 16, 2014 at 8:04am

science
Ions are electrically charged particles that are formed when certain compounds are dissolved in water. These solutions will conduct electricity. The Swedish scientist Svante Arrhenius coined the term ion (which means wanderer) to explain why solutions of electrolytes will ...
Thursday, May 15, 2014 at 8:45pm

Science
What are reasons you should pick up trash of the ground if the someone leaves it. I have 2, 1. less pollution and 2. keeps earth healthy and clean. I need 2 more
Thursday, May 15, 2014 at 5:24pm

Science
Which one of the following factors would not speed up a chemical reaction
Thursday, May 15, 2014 at 5:07pm

science
Which of the following is the most effective way to preserve biodiversity? (1 point) captive breeding habitat destruction habitat preservation habitat fragmentation
Thursday, May 15, 2014 at 1:40pm

science
1. How is the equator similar to the prime meridian? (1 point) Both the equator and prime meridian are lines that divide Earth into the Northern and Southern hemispheres. Both the equator and the prime meridian are imaginary base lines from which locations of Earth can be ...
Thursday, May 15, 2014 at 1:26pm

Science
Earth travels around the sun at a spreed of 30,000 meters per second. Express this in kilometers per hour.
Thursday, May 15, 2014 at 11:11am

science question
please check i think its B or D. Under which conditions are clouds formed from ice crystals? A.strong winds B.high altiude C.low humidity D.high pressure
Thursday, May 15, 2014 at 10:39am

science
What are lineage bears.
Thursday, May 15, 2014 at 8:35am

Science
Can a recessive trait be a dominant trait as well? I ask this because I have a science problem that says this: A Bb guinea pig crosses with a Bb guinea pig, and four offspring are produced. All the offspring are black. Explain how this could happen. I tried making a Punnett ...
Wednesday, May 14, 2014 at 8:13pm

science
help fill in the blanks please?? Similarities in the early development of chickens and opossums suggest that these organisms share a _________. Niles Eldredge found evidence in trilobite fossils in a pattern of evolution in which short periods of long change are mixed in with ...
Wednesday, May 14, 2014 at 4:26pm

science
how is the equator similar to the prime meridian A. both the prime meridian and equator are lines that divide earth into norther and southern hemispheres B. both the prime meridian and equator are imaginary base lines from which locations of earth can be measured D. both the ...
Wednesday, May 14, 2014 at 3:28pm

science
50 degrees how many ML does it have?
Wednesday, May 14, 2014 at 11:12am

science
A swimmer travels from the south end to the north end of a 30.0 m pool in 15.0 s and makes the return trip to the starting position in 19.0 s. What is the average velocity for the roundtrip?
Wednesday, May 14, 2014 at 10:47am

History,geography,life science,mathematic literacy etc
What other careers are have to be done by a those subject for people who dont have information and thnk they just do them to finish school?.
Tuesday, May 13, 2014 at 10:53pm

statistics
A laptop computer manufacturer found that by improving their battery design, they could increase the time that the laptop computer could be used on a single charge. To verify this improvement, they compared a sample of 10 laptops installed with the improved batteries to a ...
Tuesday, May 13, 2014 at 9:35pm

science
show me step by step how to balance 2 H3(PO4)(aq) + 3 CaCl2(aq)
Tuesday, May 13, 2014 at 8:28pm

Physical Science
The specific heat of copper is 0.385 J/g.°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of copper from 7°C to 29°C? a. Q = 0.385 J/g.°C ` (29°C 7°C) b. Q = 0.75 g ` 0.385 J/g.°C ` 29°C ...
Tuesday, May 13, 2014 at 7:48pm

Science
According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail to push it into a piece of wood, the nail (1 point) 1. creates a friction with the hammer. 2. exerts an equal force on the wood. 3. exerts an equal and opposite force on the hammer...
Tuesday, May 13, 2014 at 7:45pm

science
A sample of 8 grams of NaOH is dissolved into 599 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 1.68 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the final solution? ...
Tuesday, May 13, 2014 at 7:40pm

science
What volume of ethanol must be diluted with water to prepare 674 mL of 0.854 M solution? The density of ethanol is given as 0.789 g/mL. Answer in units of mL
Tuesday, May 13, 2014 at 7:38pm

Science
Which of the following would have the greatest force? (1 point) 1. an object with low mass accelerating slowly 2. an object with low mass accelerating quickly 3. an object with high mass accelerating quickly 4. an object with high mass accelerating slowly (i picked 3 but im ...
Tuesday, May 13, 2014 at 7:34pm

science
1) why are images produced under the microscope reversed & inverted? 2) why does a specimen need to be centered in the field of view on low power before going to high power?
Tuesday, May 13, 2014 at 6:56pm

science
If a forest ecosystem is removed through clear cutting, their loss is due to _______ my answer is land development. am I correct?
Tuesday, May 13, 2014 at 6:27pm

science
Which of the following statements correctly states how human activity and biodiversity affect one another. A)as humans develop land for homes and industry, biodiversity increases. B)as humans restrict fishing and oil drilling, biodiversity decreases. C)as biodiversity ...
Tuesday, May 13, 2014 at 6:22pm

science 7th grade
Which of the following does not reduce water pollution? a) cleaning up oil and gasoline spills. b)reducing pollutants such as pesticides and fertilizers. c) increasing the use of gasoline. d) properly treating waste water
Tuesday, May 13, 2014 at 2:45pm

science
1. What was henri becquerel studying when he accidentally discovered radioactivity?
Tuesday, May 13, 2014 at 2:28pm

Science
explain air resistance in terms of colliding particles Please Help...nothing to complex please
Tuesday, May 13, 2014 at 12:13pm

science
can u suggest 5 advantages of diffusion and 7 disadvantages of diffusion
Tuesday, May 13, 2014 at 12:26am

Science-Ms.Sue
How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual...
Monday, May 12, 2014 at 9:57pm

earth science
What latitudes are most likely to see glaciers? A. 30° N and 30° S B. 10° N and 10° S C. 45° N and 45° S D. 90° N and 90° S
Monday, May 12, 2014 at 8:42pm

Science
What is the mechanical advantage of the pulley system? The weight is being moved requires a force of 180n. This is the output force. The hand is providing the input force, and is pulling w/45 of force.
Monday, May 12, 2014 at 7:18pm

Science
George was rearranging his bedroom. He moved his booklet 1.5m using 63n of force. How much work did George do?
Monday, May 12, 2014 at 6:53pm

Science 7
Problem; How small is 1 part per million? What will happen to our pure food coloring when we dilute it to 1 part per million using water? What could my hypothesis be?
Monday, May 12, 2014 at 4:19pm

Science: Please check answer
2. Once your rocket reaches space, the captain adjusts the speed. Your captain goes from 24,000 km/hr to 17,000 km/hr over 90 seconds. What is your acceleration? Beginning speed= 17,000km/hr Ending speed= 24,000 km/hr Time it took= 90/sec 17000-24000= -7000/90= -77.778km/hr ...
Monday, May 12, 2014 at 2:34pm

Science
Just wondering for my report, can wood melt in EXTREMELY hot temperatures or turn into another shape?
Monday, May 12, 2014 at 12:33pm

Science? (for dddd47906)
If you follow the directions on the Post a New Question form (did you read them?), you'll have better luck getting a good response. http://www.jiskha.com/post_form.cgi Posted by dddd47906 on Monday, May 12, 2014 at 12:17pm. Just wondering for my report, can wood melt in ...
Monday, May 12, 2014 at 12:30pm

science
can u please explain osmosis,diffusion,fluid mosaic model
Monday, May 12, 2014 at 12:09pm

science
can u suggest 5 advantages and 5 disadvantages of diffusion in chemistry
Monday, May 12, 2014 at 12:02pm

computer literacy
8. Which of the following best describes the “7x7” PowerPoint rule? (C) 7 ideas per presentation/7 lines per slide. 7 lines per slide/7 words per line. 7 topics per slide/7 images per presentation . 7 words per line/7 slides per presentation.
Monday, May 12, 2014 at 10:48am

computer literacy
5. Which of the following BEST describes the concept behind Web 2.0? (A) Download Write Read-write Upload 6. The term cyberspace originated where? (A) Science fiction NASA Military University 7. Which of the following is NOT one of Facebook’s main features? (D) Private ...
Monday, May 12, 2014 at 10:45am

computer literacy
2. In a social networking site your personal information is listed under your: (D) Inbox. Home. Status . Profile. 3. Which of the following is NOT one of the MOST common uses of Twitter? (D) Posting an idea of the moment. Making a business contact. Sharing a web link. ...
Monday, May 12, 2014 at 10:44am

computer literacy
1. Virtual communities typically have all of the following EXCEPT: (B) currency. rules of conduct. games. real life contact.
Monday, May 12, 2014 at 10:41am

science
what happen if blood entering the heart mixed with blood leaving the heart?
Monday, May 12, 2014 at 9:38am

science
a cylinder of diameter 1cm at 30 degrees celcius is to be slid into a steel plate. the hole has a diameter 0.9997cm at 30 degrees celcius. to what temperature must the plate be heated? for steel
Monday, May 12, 2014 at 5:43am

Science 3
What is the current in the circuit if R1=7 R 2 =15, and the voltage is 220 volts? Is the answer 10 amps, 12 amps, 20 amps or 242 amps
Monday, May 12, 2014 at 12:19am

Science
If the voltage is110 volts and the total resistance is 10, what is the measure of the current in the circuit? Is the answer 10 amps,11 amps, 100 amps, or 120 amps.
Monday, May 12, 2014 at 12:11am

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