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October 25, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

Post a New Question | Current Questions

Science PLEASE HELP!
Why is Lithium more reactive than Neon? I honestly do not understand this.
Friday, October 17, 2014 at 11:38am

science
Would somebody be so kind and help me with my homework,please?Explain, how a substance will dissolve differently if the temperature changes. Thank you for help.
Friday, October 17, 2014 at 10:06am

science
an elephant of mass 500kg stands with all four feet on the ground. each foot has an area of 0.08m^2.calculate the pressure exerted on the ground.[g=10m/s^2]
Friday, October 17, 2014 at 6:50am

science
can you tell me the relationship between water treatment and geckos
Friday, October 17, 2014 at 12:28am

Science
Two football players collide head-on in midair while chasing a pass. The first player has a 100 kg mass and an initial velocity of 4.00 m/s in the positive x direction, while the second player has a 130 kg mass and initial velocity of 3.30 m/s in the negative x direction. What...
Thursday, October 16, 2014 at 11:12pm

science
what are 3 examples for sodium
Thursday, October 16, 2014 at 10:34pm

Science Help Urgent!!!!!
A particular neutral uranium atom has 92 protons, 143 neutrons, and an atomic mass of 235. How many electons does the atom have? a. 92 b. 143 c. 235 d. 337 Is the answer A?
Thursday, October 16, 2014 at 9:08pm

science help
A praticular neutral uranium atom has 92 protons,143 neutrons, and an atomic mass of 235. How many electrons does the atom have? A. 92 B. 143 C. 235 D. 337 Is the answer D? Thanks
Thursday, October 16, 2014 at 8:56pm

science help
What would happen to the current model of the atom if new information about its structure is discovered in the future? A. The current atomic model would be revised. B. The current atomic model would be strengthened. C. The current atomic model would be proven. D. The current ...
Thursday, October 16, 2014 at 8:47pm

Materials Science
Calculate the ratio of the moments of inertia I1I2 of two beams of rectangular cross section of the same width, one with a height h and the other, made up of three thinner beams of height h/3. I1/I2 = ?
Thursday, October 16, 2014 at 7:31pm

Materials Science
A 3m long balance beam is simply supported with an overhang at each end of a=0.5m. A gymnast weighing 50kg is standing a distance c to the right of support A and a distance b to the left of support B. How does the maximum bending moment in the beam depend on the distance c? ...
Thursday, October 16, 2014 at 7:29pm

Science-Physics
A fireworks rocket explodes at height h, the peak of its vertical trajectory. It throws out burning fragments in all directions, but all at the same speed v. Pellets of solidified metal fall to the ground without air resistance. Find the smallest angle that the final velocity ...
Thursday, October 16, 2014 at 7:29pm

Science
Explain the forms of energy: radiant, chemical,mechanical,electrical, and thermal
Thursday, October 16, 2014 at 7:24pm

Science
What is energy. Give short definition and give an example
Thursday, October 16, 2014 at 6:56pm

science help
Chromosone pairs contain diffrent versions of genes, which are called? A.alleles B.chromosome C.mitosis D.DNA E.RNA F.diploid G.meiosis H.phenotype Is the answer A??
Thursday, October 16, 2014 at 6:28pm

Science
.Define the following terms and provide a example of each: -atom, - compound, - element, -energy, - photosynthesis, -matter, - decomposition. Write it in your own words. . Explain the forms of energy: radiant, chemical, mechanical, electrical, thermal. . What is a food chain...
Thursday, October 16, 2014 at 5:47pm

science
If the following graph represents the decay of strontium-90 in an igneous rock, what event occurred at 0 years on the horizontal axis? Graph: the vertical axis is showing the percentage of radioactive element remaining. The values on the vertical axis are 0 (origin), 25, 50, ...
Thursday, October 16, 2014 at 4:10pm

Science
Would somebody be so kind and help me with my homework,please?Explain, how a substance will dissolve differently if the temperature changes. Thank you for help.Kinga
Thursday, October 16, 2014 at 3:23pm

Science
Explain, how a substance will dissolve differently if the temperature changes. Thank you for help.Kinga
Thursday, October 16, 2014 at 1:19pm

Science-Physics
A car is moving at a constant 19.3m/s, and rain is falling at 8.9 m/s straight down. What angle does the rain make with respect to the horizontally observed by the driver?
Thursday, October 16, 2014 at 11:59am

Science (Physics)
I need help with these. I'm so confused! Thanks! 1.) An F-14 Tomcat fighter jet goes from rest to a speed of 75m/s in 2.5 s. What is the acceleration? 2.) Preston tossed a red ball upward and it reaches a maximum height of 3.0m What is the final velocity when it returns to...
Thursday, October 16, 2014 at 11:56am

Science
What two angles of elevation will enable a projectile to reach a target 16 km downrange on the same level as the gun if the projectile's initial speed is 400m/sec ?
Thursday, October 16, 2014 at 9:46am

science
Two spheres A and B of mass 6.0 kg and 7.3 kg respectively are separated by a distance of 0.65 m. (a) Calculate the magnitude of the gravitational force A exerts on B and B exerts on A.
Wednesday, October 15, 2014 at 8:56pm

Science
If 2 cities on a globe is equal to 7cm, what is the actual distance between the 2 cities?
Wednesday, October 15, 2014 at 8:47pm

Science HELP
A cow that is heterzygous for the black coat allele is crossed with a bull that is homozygous for the red coat allele. Which of the following Punnett squares represents this cross? A. B B b Bb Bb b Bb Bb Thats one punnett square B. B b B BB Bb b Bb bb Thats one punnett square ...
Wednesday, October 15, 2014 at 8:23pm

Science
A cow that is heterzygous for the black coat allele is crossed with a bull that is homozygous for the red coat allele. Which of the following Punnett squares represents this cross? A. B B b Bb Bb b Bb Bb Thats one punnett square B. B b B BB Bb b Bb bb Thats one punnett square ...
Wednesday, October 15, 2014 at 8:02pm

Science
A cow that is heterzygous for the black coat allele is crossed with a bull that is homozygous for the red coat allele. Which of the following Punnett squares represents this cross? A. B B b Bb Bb b Bb Bb Thats one punnett square B. B b B BB Bb b Bb bb Thats one punnett square ...
Wednesday, October 15, 2014 at 7:38pm

Linear Programming Homework Problem
formulate this Lp model . write in standard form An investment firm hired you to manage one of their new mutual funds. The fund invests in two main companies/stocks, Pittsburg Steel (X1) and IMB(X2). Pittsburg Steel is currently trading at $40.00 per share and IMB at $30.00 ...
Wednesday, October 15, 2014 at 7:22pm

Science
The process in which the chromosomes in sex cells are reduced by half is called Answer choicesalleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the asnwer mitosis?
Wednesday, October 15, 2014 at 6:42pm

Science
In a praticular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black? A. 25% B. 50% C. 75% D. 100% Is the answer B? ...
Wednesday, October 15, 2014 at 6:34pm

Science
A white mouse is crossed with a black mouse. All of the offspring were grey, The genes for fur color in mice show. Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the answer ...
Wednesday, October 15, 2014 at 6:30pm

Science
Genes are specific sections of (Fill in the blank) Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the answer chromosome, or DNA?
Wednesday, October 15, 2014 at 6:22pm

Science
A boat has a speed of 15ms-1 in still water. It is used to cross a river 500m wide along which there is a strong current of 0.9ms-1. The boat is being directed to the opposite bank, but is carried downstream. Calculate: a) The boat velocity relative to the bank b) The distance...
Wednesday, October 15, 2014 at 6:17pm

Science
Genes are specific sections of (Fill in the blank) Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the answer chromosome, or DN?
Wednesday, October 15, 2014 at 5:56pm

Science
To pass its traits on to the next generation, an organism must (Fill in blank) Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the answer reproduce?
Wednesday, October 15, 2014 at 5:54pm

Science
In a praticular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black? A. 25% B. 50% C. 75% D. 100% Is the answer C? ...
Wednesday, October 15, 2014 at 5:40pm

Science
Chromosome pairs contain different versions of genes, which are called (fill in) My answer DNA Is that the correct answer?
Wednesday, October 15, 2014 at 5:38pm

Science
In order for a child to inherit a recessive genetic disease, like sickle cell anemia, healthy parents must both A. have the disease B. be homozygous for the mutated gene that causes the disease. C. be carries of the mutated gene that causes the disease D. have another ...
Wednesday, October 15, 2014 at 5:25pm

Science
A scientist is studying a plant species in which the flower color genes are codominant. The scientist crosses a plant with red flowers and a plant with white flowers. The offspring will most likely have A. red flowers B. white flowers C. pink flowers D. red flowers with white ...
Wednesday, October 15, 2014 at 5:07pm

Science
In humans, having dimples is a dominant trat. In order for a child to have dimples A. at least one parent must not have dimples and pass on the recessive allele. B. both parents must not have dimples and pass on the recessive allele. C. both parents must have dimples and pass ...
Wednesday, October 15, 2014 at 5:01pm

Science
What is a muation? A. A mutation is a permanant change in the order of bases in the DNA. B. A mutation is a temporary change in the order of bases in the DNA. C. A mutation is a permanant change in the way a cell carries out mitosis. D. A mutation is a temporary change in the ...
Wednesday, October 15, 2014 at 4:52pm

Science
In a praticular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black? A. 25% B. 50% C. 75% D. 100% Is the answer C? ...
Wednesday, October 15, 2014 at 4:24pm

Science
A dog is trained to sit and shake hands. These traits are most likely A. Inherited B. Not inheited C. Not aquried D. Innate Is the answer B?
Wednesday, October 15, 2014 at 4:18pm

Math
A certain computer can perform 10^5 calculations per second. How many calculations can it perform ins 10 seconds? My answer: 10^5=100,000 Multiply by 10=10^6=1,000,000 Am I correct? Thank you
Wednesday, October 15, 2014 at 3:37pm

program planning
An appropriate science activity for a child six to 12 years of age is   A. using a compass to find a specific site.B. experimenting with a magnet.C. growing plants from seeds.D. collecting leaves.  My answer is D
Wednesday, October 15, 2014 at 2:29pm

program planning
An appropriate science activity for a child six to 12 years of age is  A. using a compass to find a specific site.B. experimenting with a magnet.C. growing plants from seeds.D. collecting leaves.  My answer is C
Wednesday, October 15, 2014 at 1:31pm

earht science
1. How did planetesmals form planets? (1 point) A. They broke apart into smaller chunks. B. They collided and stuck together.** C. They cooled and pulled ice together. D. They began to rotate. 2. Which parts of the sun’s atmosphere become visible during a total solar ...
Wednesday, October 15, 2014 at 11:53am

Physics/science
A stuntman drives a motorcycle off a 350 m cliff going 70 mph. The angle of elevation of the cliff is 21 degree. He is hoping to make it across a 261 m wide river and land on a ledge 82 m high. Does he make it? HELP ME PLSSSSSSS!!!!!
Wednesday, October 15, 2014 at 6:24am

Science
A stuntman drives a motorcycle off a 350 m cliff going 70 mph. The angle of elevation of the cliff is 21 degree. He is hoping to make it across a 261 m wide river and land on a ledge 82 m high. Does he make it?
Wednesday, October 15, 2014 at 6:23am

Science
Where will gravity pull you in the center of the earth?
Wednesday, October 15, 2014 at 2:29am

program planning
An appropriate science activity for a child six to 12 years of age is A. using a compass to find a specific site.B. experimenting with a magnet.C. growing plants from seeds.D. collecting leaves. My answer is C
Wednesday, October 15, 2014 at 12:33am

Science Please Check!
Which statement best explains how the structure of a starch molecule relates to its function? A- A branching structure makes the molecule stronger. B- A branching structure has more chemical bonds than an unbranched structure. C- A branching structure provides many points ...
Tuesday, October 14, 2014 at 9:59pm

Science
An object has a KE of 83.5 J, and a speed of 27.3 m/s. What is the object’s mass?
Tuesday, October 14, 2014 at 9:08pm

Science
What type of glassy rock is found in a volcano?
Tuesday, October 14, 2014 at 8:10pm

computer science
he edit distance is the minimum number of character insertions and character deletions required to turn one string into another. Compute the edit distance between each pair of the strings he, she, his, and hers.
Tuesday, October 14, 2014 at 7:10pm

World History Answer Check
1. What events led to German unification? A: The three wars planned by the Prussian prime minister, Otto von Bismarck, led to German unity. 2. How was Great Britian able to avoid a revolution in 1848? A: Great Britian was able to avoid a revolution by giving Parliament a vote ...
Tuesday, October 14, 2014 at 6:39pm

science
When 90 kJ is removed from a 2-kg copper bar, its temperature drops from 200°C to 85°C. The specific heat of copper is
Tuesday, October 14, 2014 at 6:15pm

Science
The boundaries between the Eurasian plate and the indo australian plate as well as the Nazca and the South American plate are convergent boundaries. What is a major difference in the geologic features and events at these two plate boundaries
Tuesday, October 14, 2014 at 6:08pm

Science
what will eventually became of the mediterranean sea in the future
Tuesday, October 14, 2014 at 6:05pm

Science Please Check!
Which atoms are in all carbohydrates? A- carbon, phosphorus, oxygen B- carbon, nitrogen, oxygen C- carbon, hydrogen, oxygen D- carbon, hydrogen, nitrogen My choice is C. Which type of macromolecule is the sugar fructose? A- protein B- lipid C- carbohydrate D- nucleic acid My ...
Tuesday, October 14, 2014 at 5:30pm

Science
what system/part of the body does the disorder affect?
Tuesday, October 14, 2014 at 5:06pm

Science
What is the name of the genetic disorder?
Tuesday, October 14, 2014 at 4:52pm

science/math
you have the same volume of two different liquids. what are two ways you can tell which has greater density? Answer: by comparing its Weight and mass
Tuesday, October 14, 2014 at 4:46pm

science
Describe briefly how you will determine the density of kerosene
Tuesday, October 14, 2014 at 4:28pm

Science
What is the name of the genetic disorder?
Tuesday, October 14, 2014 at 3:51pm

Physical Science- Math skills
Rachel is asked to calculate the density of a liquid. She correctly measures the mass of the liquid to be 14 grams, but she incorrectly measures the volume of the liquid to be 10 mL. The actual volume of the liquid is 9 mL. If Rachel uses the following equation to calculate ...
Tuesday, October 14, 2014 at 2:18pm

Physical Science
A box has a mass of 90 kg If the box is accelerating upward at 1.0m/s2, what is the tension of the cable?
Tuesday, October 14, 2014 at 1:38pm

Science
Hello,could somebody help me with my science homework,please.Explain, how a substance will dissolve differently if the temperature changes?..Thank you very much for your help.
Tuesday, October 14, 2014 at 11:27am

science
The primary unit of length in the metric system is the: kilometer meter millimeter centimeter
Tuesday, October 14, 2014 at 11:05am

Int. science
Which one of the following is not equal to 100 meters? 0.100 kilometers 10 hectometers 10,000 centimeters 100,000 millimeters
Tuesday, October 14, 2014 at 8:52am

Science
a reasonable estimate for the size of a cell's nucleus is a. 0.003 b. 3 mm c. 0.003m d. 3m
Monday, October 13, 2014 at 11:36pm

program planning
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A. Math and science B. Social studies and science C. Cooking and math D. Social studies and cooking 
Monday, October 13, 2014 at 11:11pm

Science
In the nitrogen cycle, rabbits eat plants. Nitrogen is found in the rabbit in the form or proteins or bacteria?
Monday, October 13, 2014 at 9:59pm

Math
luc has 1 h of homework to do. He has assignments to complete for social studies and math, and a science test. he sepends 2/5 of the time completing the social studies assignment, and 1/3 of the time on math. How much time does Luc have left to study for the science test?
Monday, October 13, 2014 at 9:27pm

Science Physics
A 250 kg part falls from a plane and hits the ground at 150 km/h. Find its kinetic energy. Would I need to convert 150km/h to m/s? then multiply with the mass?
Monday, October 13, 2014 at 8:08pm

Science Physics
The Hoover Dam is 726 ft high. Find the potential energy of 1.00 million ft3 of water at the top of the dam.(1 ft3 of water weighs 62.4 lb.)
Monday, October 13, 2014 at 7:32pm

Science/chemisty
Explain in detail how to prepare 250. mL of a 0.125 M glucose solution. The formula for glucose is C6H12O6.
Monday, October 13, 2014 at 6:49pm

Science
Analyze several adaptations that would help organisms survive in the intertidal zone.
Monday, October 13, 2014 at 4:46pm

science
A mold forms when minerals replace all or part of an organism. True false I believe it is true
Monday, October 13, 2014 at 2:40pm

Earth science
Can you please correct me if I am wrong or let me know what you think Thanks Y-A 1. Trees keep water in a watershed from accumulating silt before it empties into river. (i got true) 2. Permeable means capable of absorbing water. (i got false) 3. Old rivers are characterized by...
Monday, October 13, 2014 at 1:46pm

NURSING
I want to become an ER nurse. Do you think taking Forensic Science and Criminal Justice is helpful? Be honest.
Sunday, October 12, 2014 at 8:58pm

Kim
I want to become an ER nurse. Do you think taking Forensic Science and Criminal Justice is helpful? Be honest.
Sunday, October 12, 2014 at 8:58pm

Science, HELP!!! URGENT!
a) If the silty clay loam soil profile is 1 meter deep, how much plant available water (cm) can potentially be held in the upper meter of soil? b) If the silty clay loam profile is 40 inches deep, how many inches of plant available water can potentially be held in the upper 40...
Sunday, October 12, 2014 at 7:00pm

Soil Science (PAW), HELP!!
a) If the silty clay loam soil profile is 1 meter deep, how much plant available water (cm) can potentially be held in the upper meter of soil? b) If the silty clay loam profile is 40 inches deep, how many inches of plant available water can potentially be held in the upper 40...
Sunday, October 12, 2014 at 4:13pm

chem science
If a thermometer bulb is not completely immersed in water, what effect will this have on the measured melting point? Will it be higher or lower than actual?
Sunday, October 12, 2014 at 3:55pm

Science, The Nitrogen Cycle
Multiple Choice: 1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other organisms can use? A. Nitrogen-Fixing Bacteria B. Denitrifying Bacteria C. Decomposers D. Producers 2. Which step in the nitrogen cycle is accelerated at the ...
Sunday, October 12, 2014 at 1:09pm

science
Cancers are groups of cells that divide rapidly and uncontrollably. Thus cancer cells Select one: a. are stuck at the metaphase plate. b. never enter the cell cycle. c. have a relatively short G1 phase and ignore the G1 and G2 checkpoints. d. are always in the G0 phase.
Sunday, October 12, 2014 at 8:39am

engineering science N4
A steel block is resting on a Flat plank 6m long ,and how high can one end of a plank be lifted For the block to start to move,if the coeficient of friction is 0.3
Sunday, October 12, 2014 at 3:28am

Science
Assume that a parcel of air is forced to rise up and over a 6000-foot high mountain (shown below). The Initial temperature of the parcel at sea level is 76.5 F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5 F/1000' and the SAR is 3.3 F...
Sunday, October 12, 2014 at 12:09am

Science
Assume that a parcel of air is forcd to rise up and over a 6000 foot high mountain.The initial temp of the parcel at sea level is 76.5 F, and the LCL of the parcel is 3000 feet. The DAR is 5.5 * F/1000m and the SAR is 3.3*c/1000m. Assume that condensation begins at 100% ...
Sunday, October 12, 2014 at 12:06am

statistics
A computer is used to randomly select a number between 1 and 2000. Event A is selecting 460.
Saturday, October 11, 2014 at 9:19pm

science
As mentioned before, our asteroid is in the shape of a sphere and has a mass of 2000 kilograms. Determine the density (in grams per cubic centimeter) of this asteroid if its diameter is known to be 1.2 meters.
Saturday, October 11, 2014 at 7:47pm

Science
Is air a good radiator, insulator, conductor or convector of heat? If three metal spoons are on a table and each at room temperature, what will happen if they touch?
Saturday, October 11, 2014 at 1:55pm

science
Which of the following causes a hot air balloon to rise? Resistance Conduction Convection Radiation
Saturday, October 11, 2014 at 1:53pm

science!!
1) Which of the following correctly states the relationship between hippos and whales? (1 point) A) Whales evolved from hippos. B) Hippos evolved from whales.*** C) Hippos and whales do not share a common ancestor. D) Hippos and whales evolved from a common ancestor. 2) fossil...
Saturday, October 11, 2014 at 10:22am

science!! please help me!!
1)When evolution was first proposed, which of the following was used as evidence to support the idea? (1 point) A)observations of nature*** B)laboratory experiments C)extensive fossil collections D)genetic sequences 2)How did Darwin and Lamarck differ in their thinking about ...
Saturday, October 11, 2014 at 9:58am

science
suppose 125g of ethanol at 25C is mixed with 255g of ethanol at 84C at constant atmospheric pressure in a thermally insulated vessel. What is the Ssys for the process. The specific heat capacity for ethanol is 2.42 J/g K. Answer in units of J/K
Saturday, October 11, 2014 at 2:02am

computer science
i need help with this problem 32+64(mod18)
Saturday, October 11, 2014 at 12:41am

Science
What is the probabilty of two tall peas plants, heterzygous for the tall ellele, producing a short pea plant.? A. 75% B. 50% C. 25% D. 0% Is the answer c?
Friday, October 10, 2014 at 7:56pm

Science
What does the notation TT mean to geneticists? A. Two dominant alleles B. Heterozygous C. At least one dominant allele D. One dominant and one recessive allele Is the answer A?
Friday, October 10, 2014 at 7:28pm

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