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October 25, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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science(check answers)
2.C 3.A 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B.engines C.mines D.turbines 3.which of the following is not among the advantages of generating nuclear energy? A.It does not release carbon dioxide into the atmosphere. B.it ...
Wednesday, March 12, 2014 at 11:56am

science(check answers)
1.A 2.A 3.D 4.C 1.Is the following statement true or false?Solar panels collect energy from the sun that can then power a lamp in a home. A.True B.False 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B.engines C.mines D.turbines 3....
Wednesday, March 12, 2014 at 11:23am

science(check answers)
5.B 7.C 5. 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 7. Which of the following ...
Wednesday, March 12, 2014 at 12:13am

Science
Which of the following is NOT a way that machines provide a mechanical advantage? a.change direction b.change distance c.change power d.change force
Wednesday, March 12, 2014 at 12:08am

science(check answers)
1.True 2.A 3.B 4.C 5.C 6.B 7.C 8.D 1. Aquaculture is the practice of farming sea organisms as a renewable food source. A. True B. False. 2. Selectively cutting down trees on an area of land can be best described as A. cutting down certain trees while leaving other trees ...
Tuesday, March 11, 2014 at 11:36pm

Science
May someone please explain the process of respiration of animals.
Tuesday, March 11, 2014 at 11:16pm

science(check answers)
i dont think the answer could be A. so i pick B. One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a fossil fuel D. it cannot be used up
Tuesday, March 11, 2014 at 11:01pm

science(check answers)
1.D One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a fossil fuel D. it cannot be used up
Tuesday, March 11, 2014 at 10:57pm

science(check answers)
1. A 2. C 3. A 4. D 1. Coal, oil, and natural gas are inexpensive sources of fuel which do not cause pollution when used. A. true B. false 2. One reason people around the world use coal as an energy source is: A. It is nonrenewable. B. it can be found many places C. it is a ...
Tuesday, March 11, 2014 at 10:44pm

science
if electrons are caused to fall through a potential difference of 100000 volt,determine their final speed if they were initially at rest.
Tuesday, March 11, 2014 at 10:13pm

Science
what mass of sulphuric acid must be added to a 750 ml to have a ph of 2.27
Tuesday, March 11, 2014 at 10:01pm

science
Can u unscramble these letters into a word? ATSETLECTOICNP
Tuesday, March 11, 2014 at 9:40pm

English Answer Check--Please, help me!
Underline the clauses in the following sentences. Identify each as an adverb clause or a noun clause. 1. When _he discovered the data were corrupt_, Swift knew he had to do something. A: Adverb clause. 2. Henderson belived that _any Multivac provided_ was unreliable. A: Noun ...
Tuesday, March 11, 2014 at 9:08pm

English Answer Check--Please, help me!
Underline the clauses in the following sentences. Identify each as an adverb clause or a noun clause. 1. When _he discovered the data were corrupt_, Swift knew he had to do something. A: Adverb clause. 2. Henderson belived that _any Multivac provided_ was unreliable. A: Noun ...
Tuesday, March 11, 2014 at 9:06pm

science(check answers)
please check my answers 1. B 2. A 3. D 4. A 1.B 2.A 3.D 4.A 1.All renewable resources are inexhaustible A.true B.false 2.Some fuels,called biofuels,are made from plants.They are used in cars and other machines biofuels would fit best in which of the following categories A. ...
Tuesday, March 11, 2014 at 9:04pm

science(check answers)
please check my answers 1. B 2. A 3. D 4. A 1.B 2.A 3.D 4.A 1.All renewable resources are inexhaustible A.true B.false 2.Some fuels,called biofuels,are made from plants.They are used in cars and other machines biofuels would fit best in which of the following categories A. ...
Tuesday, March 11, 2014 at 8:18pm

science
Are there important aspects of your personality that were not addressed by this questionnaire? If so, which ones? just make up something. answer in detail regarding hexaco inventory
Tuesday, March 11, 2014 at 6:11pm

science
How accurately do you think your best friend or a close family member would be able to answer these questions about you? Are there some aspects of your personality that are more private than others? answer in detail regarding hexaco inventory
Tuesday, March 11, 2014 at 6:10pm

science
What personality traits do you think this hexaco inventory measured? answer in detail
Tuesday, March 11, 2014 at 6:07pm

science
3. Liquefied air (assuming it is only O2 and N2) is kept in a container where pressure and temperature can be controlled. a. What is the maximum temperature at which the mixture exists as a liquid? If this temperature is kept constant, what is the minimum pressure to keep the ...
Tuesday, March 11, 2014 at 2:13pm

Statistic Please Check
Check this out please Thanks Lesson 3 Unit 2 Probability Couplements, Disjoint Events and the addition Rule 1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing probability and answer the...
Tuesday, March 11, 2014 at 11:44am

Science :(
Which of the following describes the correct sequence of events during the water cycle? precipitation → condensation → evaporation → runoff condensation → precipitation → runoff → evaporation runoff → condensation → evaporation...
Tuesday, March 11, 2014 at 10:44am

Science Help PLEASE!!
1. What happens to the levels of surface water and groundwater during a drought? Surface water and groundwater levels increase during drought. Surface water and groundwater levels decrease during drought. There is no change in the levels of surface water and groundwater during...
Tuesday, March 11, 2014 at 10:15am

English
I'm writing a personal essay for an internship. Is everything in this essay clarified? Where can I expand? I don't know about you but I like living. And in order for me (and those who proceed me) to live a nice, long and happy life, we have to do something about the ...
Tuesday, March 11, 2014 at 3:52am

science
2. Alex, a fresh graduate chemical engineer, started his job by a mission requested by his boss. He was supposed to prepare a small amount of ethylene in the lab, to use it later for polyethylene synthesis. His boss, OE, also known as “The Monster” did not provide ...
Tuesday, March 11, 2014 at 1:52am

science
Calculate the mass percent composition of each element in each compound.
Monday, March 10, 2014 at 8:43pm

Science
If 33.7 grams of LiOH dissolve in enough water to make a 231-gram solution, what is the concentration in percent by mass?
Monday, March 10, 2014 at 5:38pm

Please Help Me :( Science: Biology, Genetics!
Please help me with science genetics questions? Thanks to all who answer!! :) 1. Chromosome pairs contain different versions of genes, which are called ________. 2. The process in which body cells are duplicated in order to grow and repair body tissues is called _____________...
Monday, March 10, 2014 at 5:22pm

Science, Genetics
Please help me with science genetics questions? Thanks to all who answer. :) 1. Chromosome pairs contain different versions of genes, which are called ________. 2. The process in which body cells are duplicated in order to grow and repair body tissues is called _____________. ...
Monday, March 10, 2014 at 4:28pm

science
In the following diagram, the greem ball changes direction after colliding with the red ball because the red ball has more momentum. True <---- False 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100 kg m/s <---- ...
Monday, March 10, 2014 at 3:37pm

Science
What is the formula to find density when weight is 90N, Vol is 45ml, Mass is 9.0g
Monday, March 10, 2014 at 3:30pm

science
Hannah is comparing a rock from a riverbed and a rock from deep underground. One is very smooth, and the other has very rough edges. Explain why each rock was probably found in that location.
Monday, March 10, 2014 at 2:43pm

Science help
A student combined water, sugar, and salt into a beaker. Which of the following statements are true? a. The individual substances can be separated by physical means.** b. The individual substances cannot be separated by physical means. c. A new substance is made of two or more...
Monday, March 10, 2014 at 2:11pm

science
Every year Eli and his family visit Great sand dunes desert in Colorado.Elliott notices that more dunes with varied shapes and sizes appear each year.Explain what causes phenomenon.
Monday, March 10, 2014 at 1:58pm

life science,history,maths literecy and economic
what careers can i from those subjects
Monday, March 10, 2014 at 1:29pm

science
If a farmer plants the same crop in a field year after year the soil becomes less fertile. What causes this decrease in fertility ? a) erosion b) lack of water c) loss of topsoil d) loss of nutrients How do decomposes increase the fertility of soil ? a) by storing moisture in ...
Monday, March 10, 2014 at 12:36pm

science
1. Which of the following is evidence that groundwater cause erosion and deposition ? a) the formation of meanders b) the formation of large boulders in the desert c) the formation of alluvial fans d) the formation of stalagmites and stalactites in caverns 2. The mas of rock ...
Monday, March 10, 2014 at 12:34pm

science
A cart rolling down an incline for 5.0 seconds has an acceleration of 4.0m/s2. If the cart has a beginning speed of 2.0m/s what is its final speed?
Monday, March 10, 2014 at 10:30am

programming
Write an algorithm to compute average score for each student in the Computer Science Continuous assessment test. Assume each student sat for ten courses for the semester
Monday, March 10, 2014 at 8:31am

SCIENCE CAN ANYONE HELP
A.) Show how vertical multiplication can be used to do a charge balance if Zn2+ combines with Cl- b.) Write the chemical formula name for the compound that would be formed I've been waiting for hours and I haven't even received any help...
Sunday, March 9, 2014 at 7:29pm

Science urgent
A.) Show how vertical multiplication can be used to do a charge balance if Zn2+ combines with Cl- b.) Write the chemical formula name for the compound that would be formed
Sunday, March 9, 2014 at 5:30pm

Science
Hello. I have this question for my class. We were to mix Na2S2O3 to a a test-tube with Varsol layer on top and an Aqueous layer (of I2/KI) on the bottom. I observed a lighter colour change in both layers. How would I express that as a chemical equation? Also, I added saturated...
Sunday, March 9, 2014 at 5:21pm

integrated science
find the resultant force on a .150kg baseball if gravity is pulling down and it is hit at a 45 degree angle with 50N of force by a baseball bat.
Sunday, March 9, 2014 at 5:19pm

science
An atom of sodium-23 (atomic number = 11) has a positive charge of +1. Given this information, how many electrons does it have? How many protons and neutrons does this atom have?
Sunday, March 9, 2014 at 4:51pm

science
A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom an ion?
Sunday, March 9, 2014 at 4:50pm

science
How does ozone gas to int get into the earth?
Sunday, March 9, 2014 at 3:21pm

science
An aerosol can contains gases under a pressure of 4.6 atm at 18◦C. If the can is left on a hot sandy beach, the pressure of the gases increases to 4.69 atm. What is the Celsius temperature on the beach
Sunday, March 9, 2014 at 3:09pm

science
What pressure is required to reduce 75 mL of a gas at standard conditions to 11 mL at a temperature of 27 ◦C? what pressure would i use?
Sunday, March 9, 2014 at 3:08pm

science
A gas occupying 43 mL at standard conditions is heated to 29 celsius while the pressure is reduced to 0.84091 atm. What is the new volume occupied by the gas?
Sunday, March 9, 2014 at 2:24pm

science
As seen in the lab frame a rocket A is moving to the right with speed c  and rocket B is moving to the left with speed c  . The pilot of rocket B fires a laser beam. In the B-frame, the laser beam points in the x-y plane and makes and angle =53.13˚...
Sunday, March 9, 2014 at 12:45pm

science
A distant spaceship carrying a red headlight, emitting light with wavelength 600nm, is heading towards the earth. Observers on the earth detect the light from the headlight as ultraviolet light with wavelength 200nm. What is the velocity of the spaceship? b) As the space ship ...
Sunday, March 9, 2014 at 12:44pm

physical science
A horizontal force of 10 Newtons acts on a 2 kg block on a level surface.The frictional force between the block and the surface is 3 Newtons.What is the magnitude and the direction of the net force acting on the block?
Sunday, March 9, 2014 at 12:37pm

science
A decrease in “food miles” will most likely increase the environmental impact of any given food.
Saturday, March 8, 2014 at 10:23pm

Physical Science
Describe convection in a room heated by a radiator.
Saturday, March 8, 2014 at 3:50pm

Engineering science
A brick with a mass of 6kg is dropped vertically from a certain height.it takes 4,5 seconds for the brick to reach the ground.determine the ff.the height from which the brick is dropped and potential energy of the brick
Saturday, March 8, 2014 at 3:39pm

Physical Science
22. Why does a heat pump need an external source of energy (such as electrical energy)?
Saturday, March 8, 2014 at 2:37pm

Algebra
On Monday, it took Helen 3 hours to do a page of science homework exercises. The next day she did the same number of exercises in 2 hours. If her average rate on Monday was p exercises per hour, what was her average rate the next day, in terms of p? I know that the answer is 3...
Saturday, March 8, 2014 at 10:38am

science
I'm instructed to wrtie a full lab raport for a lab I did a couple of months ago. My aim was to find the most efficient concentration of fertilizer to grow red lentils. I planned to do this by taking the average of the number of lentils sprouted each day for eight days and...
Saturday, March 8, 2014 at 9:18am

computer
Wap in JAVA to input a 4-digit no. and find largest using nested if.
Saturday, March 8, 2014 at 1:33am

Science
Two identical twins marry two identical twins. Will their offspring look the same?
Friday, March 7, 2014 at 11:23pm

physical science
An airplane trvels with a velocity of 200 mi/h in a direction 30 deg. west of north of 1.50 h. How far north and how far west is it from its starting point?
Friday, March 7, 2014 at 8:49pm

Science- help asap plz
think about the role that trees play in the water cycle. what are two of the ways in which they are part of the cycle?
Friday, March 7, 2014 at 6:05pm

Science- still waiting
Give 2 examples for each state of fresh water: a) solid b)liquid c) vapour?
Friday, March 7, 2014 at 5:36pm

Science- HELP Please!
provide three statements that demonstrate the importance of units when describing motion.
Friday, March 7, 2014 at 5:08pm

Science
provide three statements that demonstrate the importance of units when describing motion.
Friday, March 7, 2014 at 4:46pm

Science
provide three statements that demonstrate the importance of units when describing motion.
Friday, March 7, 2014 at 4:17pm

Science
Give 2 examples for each state of fresh water: a) solid b)liquid c) vapour?
Friday, March 7, 2014 at 3:12pm

Science
A ball of mass 200 g is dropped from a height 3 m above the ground onto a hard floor, and rebounds to a height of 2.2 m. If the ball is in contact with the floor for 0.002 s calculate the average force exerted by the floor on the ball
Friday, March 7, 2014 at 2:29pm

science
why is gravity on earth and not on the moon i need something to help me start it off
Friday, March 7, 2014 at 12:48pm

Language Arts
7) While I was researching skate boards, I found an interesting old newspaper story. 8) In the June 29, 1999 edition of the Mercury, there was an article on skateboarding. 9) Some scientists in San Francisco, California filmed skateboarders in action. 10) As they studied the ...
Friday, March 7, 2014 at 12:46pm

Algebra
You are taking a science course in which there will be four tests, each worth 100 points. You have scores of 94,100, and 92 on the first three tests. You must make a total of 360 in order to get an A. What scores on the last test will give you an A? The solution is {s|s>__...
Friday, March 7, 2014 at 10:36am

statistics
a large shipment of computer chips, of which 5% are actually defective, a quality control manager decides to test chips until he finds the first defective. What is the probability that the manager finds the first defective chip on the first test? in Homework Help
Friday, March 7, 2014 at 4:04am

science
find the empirical formula for a compound that consists of aluminum and chlorine in which the aluminum is 20.2% by mass
Friday, March 7, 2014 at 2:21am

Science
Where are you likely to observe the tiger quolls in there habitat?
Friday, March 7, 2014 at 1:38am

Science
Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He decreased the ...
Thursday, March 6, 2014 at 11:41pm

Science
Jill is jumping on a trampoline in her backyard. When will she have both potential and kinetic energy? A. Halfway between the highest point and the lowest point of a jump B. At the highest point of a jump C. At the lowest point of the jump D. Just before she begins a jump
Thursday, March 6, 2014 at 9:13pm

Computer Tech
I am doing a powerpoint/photoshop project in my computer tech class about a singer that has recently become famous in the world of music. The artist I am researching is Ariana Grande. When I was looking for her albums I found two: Daydreamin' and Yours Truly. Some websites...
Thursday, March 6, 2014 at 8:59pm

Environmental Science
On Earth in the extreme northern and southern latitudes, how does the relationship between GPP and NPP change during an entire year’s time?
Thursday, March 6, 2014 at 7:43pm

science
What would you do if every person were only allowed to use 20 gallons of water per day? How would your life change?
Thursday, March 6, 2014 at 7:42pm

Science
In the following diagram, the greem ball changes direction after colliding with the red ball because the red ball has more momentum. True <---- False 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100 kg m/s <---- ...
Thursday, March 6, 2014 at 7:03pm

science... PLEASE HELP!
The problem says "during which stage of the cell cycle does the cell membrane pinch the cell in two?" I said the cytokinesis stage is when the cell membrane pinches the cell in two. Am I correct? If not, please help!
Thursday, March 6, 2014 at 6:24pm

science
explain how chromosome behaviour during sexual reproduction in animals ensures perpetuation of parental traits in offspring and, at the same time, genetic variation among offspring.
Thursday, March 6, 2014 at 6:08pm

science
explain how chromosome behaviour during sexual reproduction in animals ensures perpetuation of parental traits in offspring and, at the same time, genetic variation among offspring.
Thursday, March 6, 2014 at 5:43pm

Science
Does a solar powered calculator work when there is no bright light falling on the solar panel? Explain
Thursday, March 6, 2014 at 5:05pm

SCIENCE
1. If the net force on an object is O N, the forces are considered unbalanced. true false <---- 2. Most people in the United States use feet and miles to measure distance in their everyday lives. Why do scientists in the United States use meters to measure distance? Meters ...
Thursday, March 6, 2014 at 4:55pm

Reading skills
According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from ...
Thursday, March 6, 2014 at 2:37pm

Science
What is a harmful effect of electrical resistance?
Thursday, March 6, 2014 at 2:20pm

Science
the process in which body cells are duplicated in order to grow and repair body tissues is called
Thursday, March 6, 2014 at 12:53pm

8th Grade Science
There is a connection between photosynthesis and cellular respiration. The products from one provide the raw materials for the other. What products of photosynthesis are starting materials for cellular respiration? A. glucose and oxygen B. heat energy and ATP C. carbon dioxide...
Thursday, March 6, 2014 at 12:25pm

Check my answers?--SCIENCE
1. What is true about X-rays and microwaves? a. X-rays have greater speed than microwaves. b. X-rays have greater amplitude than microwaves. c. X-rays have greater frequency than microwaves. d. X-rays have greater wavelength than microwaves. 2. The wavelength of a longitudinal...
Thursday, March 6, 2014 at 12:20pm

8th-g Science: Need help to check answer!!!
Since I will have a science test next week based on these questions but my teacher won't check all answer with the class. I don't want to make a mistake and study to an incorrect answers. Do you mind to check the answers for me so that I am able to see if I got it ...
Thursday, March 6, 2014 at 9:51am

Science--Check My Answers?
1. What is true about X-rays and microwaves? a. X-rays have greater speed than microwaves. b. X-rays have greater amplitude than microwaves. c. X-rays have greater frequency than microwaves. d. X-rays have greater wavelength than microwaves. 2. The wavelength of a longitudinal...
Thursday, March 6, 2014 at 8:54am

Computer Tech
I have to do a power point on a singer who has recently become famous. I chose Ariana Grande because she only has two albums. I have been trying to find her song and album release dates but cant find a website. Can someone please see if they could find one? It would be a big ...
Wednesday, March 5, 2014 at 8:58pm

science
3. Which of the following is an example of inbreeding? A farmer chooses the cows in his or her herd that produce the most milk and breeds only those cows. A farmer chooses the cows in his or her herd that produce the most milk and breeds them with cows that get sick less often...
Wednesday, March 5, 2014 at 8:54pm

Science- Check Please :)
I only have a couple questions left but I want to be sure that my answers are correct so can someone please help me by checking my answers and if they are wrong can someone please let me know? Thank you! Question Number 1: A freshwater marsh is a type of ecosystem. Grasses, ...
Wednesday, March 5, 2014 at 8:17pm

science( Please Check My Answer)
Question: One of the largest cypress trees in Florida has a tree trunk diameter of about 3.5 m. What is the source of MOST of the carbon in the cypress tree's trunk? Answer choices: A. The tree created carbon during photosynthesis. B. The tree used carbon that it had ...
Wednesday, March 5, 2014 at 7:46pm

Science
Bacteria are classified according to three basic shapes. Name them and give the scientific. name for the shape. 1. Round pairs - Diplococcus 2. Rod shaped - Bacilli 3. ?? I need another one. Please help me.
Wednesday, March 5, 2014 at 7:09pm

Science
Bacteria are classified into 3 basic shapes, name them and give the scientific name. 1. Round pairs - Diplococcus 2. Rod shaped - Bacilli I got 2 can someone help me with one more?
Wednesday, March 5, 2014 at 4:51pm

SCIENCE
WHAT ORGAN MAKES ACID THAT U VOMIT AND CAN BURN THROUGH AN CARPET
Wednesday, March 5, 2014 at 4:21pm

Science
Bacteria are classified into three basic shapes. Name them and give the scientific name for the shape. 1. Diplococcus - Round and paired. 2. Bacilli - Rod shaped. 3. I don't know which else shape they would be classified into.
Wednesday, March 5, 2014 at 4:19pm

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