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October 30, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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science
Describe a fourth scenario in which either the Law of Conservation of Matter or the Law of Conservation of Energy could be observed. Using as many sentences as needed, describe how an experiment could be set up to further explore your recorded observation. The goal is to show ...
Monday, September 8, 2014 at 5:46pm

living enviroment
write 8 ways you could apply science safety rules in your kitchen at home.
Monday, September 8, 2014 at 5:40pm

science
Two im not sure on, please check? What is the true work of all scientists? Scientists ask testable questions and devise ways to answer those questions through experimentation or observation.*** Scientists research other scientists' discoveries and present their opinions ...
Monday, September 8, 2014 at 2:37pm

Science
Would the climate/weather count as the physical geography of a region?
Monday, September 8, 2014 at 11:39am

Science
Does more humidity make plants grow faster?
Monday, September 8, 2014 at 11:29am

Science
Why do we say that an explanation in science is tentative?
Sunday, September 7, 2014 at 11:29pm

science
What's the difference between hypothesis and a theory?
Sunday, September 7, 2014 at 10:37pm

Physical Science
An 84.9 kg man is standing on a frictionless ice surface when he throws a 2.00kg book at 11.1m/s. Do the man move in the same direction as the book or opposite of the book.
Sunday, September 7, 2014 at 5:17pm

science/math (mean)
Find the mean Sample Value 1- 41.93 2- 12.55 3- 48.07 4- 90.81 5- 18.45 6- 55.81 I came up with 44.60 the online program "said close but check to see if yo made a round error" and at least three decimal places
Sunday, September 7, 2014 at 4:51pm

science
I measure my head fist 28m , 65cm now i'm stuck trying to figure out how to measure my head in mm and km. I need help please.
Sunday, September 7, 2014 at 4:12pm

Science of the Atmosphere
What is the temperature of air, given P= 90 kPA and the pressure is 1.0 kg(m^-3)? Thanks!
Sunday, September 7, 2014 at 3:10pm

Physical Science
What volume would 90g occupy?
Sunday, September 7, 2014 at 1:45pm

Physical Science
How many grams would occupy 12cm^3?
Sunday, September 7, 2014 at 1:44pm

science
which of the following best describes a scientific theory?
Sunday, September 7, 2014 at 12:32pm

science
a man throws a ball of mass 0.5kg vertically upwards with a velocity of 25 m/s.find:[a}the initial momentum of the ball{b}momentum of the ball at the half way mark of the maximum height {given g=10 m/s square}
Sunday, September 7, 2014 at 7:14am

Computer Programming
Need Python pseudocode and program that asks the user to enter the number of packages purchased. The program should then display the amount of the discount (if any)and the total amount of the purchase after the discount. Software co. sells a pkg that retails for $99. Quantity ...
Saturday, September 6, 2014 at 8:26pm

science
How far does your automobile travel in meters during your reaction time if you are moving at 55 mi/h (25 m/s)?
Saturday, September 6, 2014 at 4:30pm

Science
Why are aboriginal clan systems considered human social systems?
Saturday, September 6, 2014 at 2:32pm

Science of the Atmosphere
What is the temperature of air, given P= 90 kPA and the pressure is 1.0 kg(m^-3)? Thanks!
Saturday, September 6, 2014 at 1:11pm

physical science
A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show what the weight of the load is 360N.
Saturday, September 6, 2014 at 10:37am

science
What are macro-nutrients?
Saturday, September 6, 2014 at 4:29am

Earth science
Kathleen made the diagram below to show how scientific knowledge changes over time. Which word or phrase best describes what scientists would do at the point indicated by the blank? Original data + new data =blank= modified data. Which would be the answer in the blank to fill ...
Thursday, September 4, 2014 at 11:31pm

physical science
if an object has a mass of 10 g and a volume of 5 ml what is its density
Thursday, September 4, 2014 at 10:03pm

science
Need help with a summary of sexual an asexual reproduction
Thursday, September 4, 2014 at 9:03pm

Science
What characteristics are common in main sequence stars
Thursday, September 4, 2014 at 8:25pm

Science
In what part of their life cycle are white dwarfs; beginning middle or end or some combination of those stages
Thursday, September 4, 2014 at 8:25pm

science
Myoglobin, a protein that stores oxygen, has a mass of 2.98 x 10-14? what?
Thursday, September 4, 2014 at 3:01pm

Computer Science
Define an unambiguous context free grammar that generates the language of strings containing a series of a's followed by a series of b's followed by a series of c's concluding with a series of d's. The number of a's must be exactly the sames as the number ...
Thursday, September 4, 2014 at 2:44pm

Computer Science
Write a regular expression defining strings that begin with an a and end with a b and can contain any number (including zero) of c's or d's in the middle. Every c that is in the string must be followed by at least one d. Construct a deterministic finite state automaton...
Thursday, September 4, 2014 at 2:43pm

Computer Science
Define a language that is not a regular language using a context-free grammar that is not ambiguous. The alphabet of the language must contain at least five characters. Describe in English the strings of the language. Choose any string that is in the language and demonstrate ...
Thursday, September 4, 2014 at 2:42pm

science
A tower is 24m high. A stone is projected upwards from the tower with initial velocity of 24,5 m/s. Calculate how long it would take for the stone to reach the ground at the foot of the tower.
Thursday, September 4, 2014 at 4:46am

SCIENCE:BIOLOGY>
1. How many seconds do you spend in school during the week (6.5 hours/day)? 2. How many micrograms are in 12 dekagrams? 3. How many centimeters are in 5 kilometers? 4. 3.25 liters are equal to how many kiloliters? 5. how man meters are in 0.65 hectometers? 6. How many grams ...
Wednesday, September 3, 2014 at 10:08pm

Science independent variable
A scientist designed an experiment to test the effect of temperature on bacterial growth. He grew three different cultures of the bacterium E. coli under three heat lamps at different temperatures. What was the independent variable in this experiment?
Wednesday, September 3, 2014 at 6:58pm

Science
Which of the following is not a model? A.An ant farm B.A bicycle C.An atlas D.A plastic human skeleton Is the answer B?
Wednesday, September 3, 2014 at 2:41pm

science
A 24 V battery of internal resistance 4 ohm is connected to a variable resistor. At what value of the current drawn from the battery is the rate of heat produced in the resistor is maximum?
Wednesday, September 3, 2014 at 12:12pm

English
Revise the following sentences as needed to create pronoun-antecedent agreement and to eliminate the generic he and any awkward pronoun references. 1. While shopping for a new computer for school, I noticed that a laptop costs much less that they used to. a. While shopping for...
Wednesday, September 3, 2014 at 2:40am

understanding motion science
it takes a runner 10 seconds to run 100 yards. the runners speed is ?
Tuesday, September 2, 2014 at 8:39pm

Science
The inner planets- Mercury, Venus, Earth and Mars- were formed by a. Supernovas b. repeated collisions of asteroid sized debris (My Answer) ****** c. masses of cold hydrogen and helium d. collisions of large galaxies
Tuesday, September 2, 2014 at 6:25pm

physical science
If the volume of a piece of oak is 12 cm3, what's its mass?
Tuesday, September 2, 2014 at 6:23pm

Science
Calculate the area, with the appropriate number of significant figures, of a recotangular room that is 14.10 m wide by 15.0 m long. A.212 m^2 B.211.5 m^2 C.29.1 m D.29.10 m Is the answer B?
Tuesday, September 2, 2014 at 5:22pm

Science
A student measures the volume of a liquid and finds it to be 40 mL. How many significant figures are in the measurement? A.1 B.2 C.3 D.4 Is the answer B?
Tuesday, September 2, 2014 at 5:15pm

science
A point charge of -4 mu or micro CC is located at x = 4 m, y = -2 m. A second point charge of 12 mu or micro CC is located at x = 1 m, y = 4 m. (a) Find the magnitude and direction of the electric field at x = -1 m, y = 0. I got 4545.69 N/C by using this equation E= kQ/r^2 (...
Tuesday, September 2, 2014 at 4:26pm

Maths,Physics,life science,geography,
An airplane lands with a velocity of 100 m.s. The maximum rate at which it can slow down is 5,0 m.s 1. What is the minimum time needed to come to rest, starting from when it first touches the ground? 2. Can this plane safely land at a small airport where the landing strip is 0...
Tuesday, September 2, 2014 at 1:01pm

Science Check PLEASE
put ** by the ones I thought correct Which of the following statements best describes the characteristics of a hypothesis, one of the steps of the scientific method? a)It is a possible answer to a scientific question *** b) It is a scientific inquiry that cannot be tested c)...
Tuesday, September 2, 2014 at 11:38am

science
significant figure ¹.25×0.05meters what is the correct answer
Tuesday, September 2, 2014 at 9:51am

math
A computer is sold for P2,000 when the markup is 60% of cost. What is the cost?
Tuesday, September 2, 2014 at 7:44am

science
a hemisphere container is made with the following dimensions. the external diameter of the container is 12 cm. the internal diameter of the container is 6 cm. it is filled with water to the brim. what is the density of the empty container if the total mass of the container ...
Tuesday, September 2, 2014 at 6:33am

Science Check answers please
I put ** by the ones I thought correct Which of the following statements best describes the characteristics of a hypothesis, one of the steps of the scientific method? a)It is a possible answer to a scientific question *** b) It is a scientific inquiry that cannot be tested c)...
Tuesday, September 2, 2014 at 3:45am

economics
what circular flow the the following fall into 1)You receive $15,000 in profits from your half-owner of a Krispy Kreme franchise. 2)The Georgia Bulldogs sells season football tickets for $50.00. 3)What market determines the price per acre of farmland? 4)What market determines ...
Monday, September 1, 2014 at 9:36am

science, physics
Calculate the final temperature. Two kg ice at zerodegree celsius is mixed with 8 kg of water at 20 degree celsius.
Monday, September 1, 2014 at 4:24am

English
Could "crafted but easily shattered." be a paradox? P.S. sorry again, we have a study group and are all using the same computer.
Sunday, August 31, 2014 at 5:51pm

science
A particle leaves the origin with a speed of 2.4 times 106 m/s at 38 degrees to the positive x axis. It moves in a uniform electric field directed along positive y axis. Find Ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.
Sunday, August 31, 2014 at 5:38pm

science
How many calories are in a food that contains .100 grams of CHO . 20 grams of protein . 20 grams of fat What percentage of the total calories comes from: . CHO .Protein .Fat
Sunday, August 31, 2014 at 2:52pm

science
How many calories are in a food that contains .100 grams of CHO . 20 grams of protein . 20 grams of fat
Sunday, August 31, 2014 at 2:48pm

Science(density)
A brick of salt has a volume of 50cm^3 and a mass of 100 grams. What is its density? Show all calculations.
Sunday, August 31, 2014 at 1:29pm

science
derive second equation of motion.S=ut+1/2at2 graphycally where the symbols have their usual meanings.
Sunday, August 31, 2014 at 3:41am

Science
What do you learn in 7th grade science
Sunday, August 31, 2014 at 12:06am

science
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in ...
Saturday, August 30, 2014 at 10:14pm

science
Compute the density in g/cm3 of a piece of metal that has a mass of 0.345 kg and a volume of 59 cm3
Saturday, August 30, 2014 at 1:32pm

Chemistry Science
calculate the mass of carbon dioxide that would be produced when one gas of tank of gasoline (use octane) is burned in the air. assume an 80 liter gas tank and 0.703 g/ml as the density of octane
Saturday, August 30, 2014 at 12:35pm

Physical Science
How many satellites are used for transmitting GPS signals?
Saturday, August 30, 2014 at 9:38am

Physical Science
The polar circumference of Earth is 40,000km. What distance corresponds to a change of one degree of latitude? A change of one one arcminute of latitude? Hint, an arcminute is 1/60th of a degree.
Saturday, August 30, 2014 at 9:27am

Physical Science
Standard GPS receivers are accurate to about one hundredth of an arcminute of latitude. What distance does this correspond to?
Saturday, August 30, 2014 at 9:23am

Physical Science
If six blocks of wood were cut from the same board , would all the pieces of wood have the same density?
Saturday, August 30, 2014 at 9:19am

Physical Science
Do wood float in gasoline and water?
Saturday, August 30, 2014 at 9:17am

chemistry
Gallium is a metal with a wide variety of uses. Some of its applications include computer memory chips, light emitting diodes and lasers. Radioactive isotopes of gallium are used to image the human body and locate tumors. Naturally occurring gallium consists of two isotopes. ...
Friday, August 29, 2014 at 8:40pm

Physical Science
An 84.9 kg man is standing on a frictionless ice surface when he throws a 2.00 kg book at 11.1 m/s. With what velocity does the man move across the ice?
Friday, August 29, 2014 at 8:31pm

Science
Why do scientists use standard units of measurement? A.Because their tools only measure in these units. B.Because other units are either too small or too large to work with. C.So they can communicate findings without confusion. D.So that people who are not scientists cannot ...
Friday, August 29, 2014 at 1:49pm

Physical Science
What is the weight of a 4.82 kg backpack in Newton and the acceleration of the backpack if a net force of 10.0 N is applied in m/s2?
Friday, August 29, 2014 at 12:15pm

Science
A.) A runner is jogging at a steady 6.7 km/hr. When the runner is 3 km from the finish line, a bird begins flying from the runner to the finish line at 20.1 km/hr (3 times as fast as the runner). When the bird reaches the finish line, it turns around and flies back to the ...
Thursday, August 28, 2014 at 11:13pm

science
why ch3cn act as both electrophile and nucleophile?
Thursday, August 28, 2014 at 9:54pm

science
The chef has 50 pounds of strip loin. The trim loss on the strip loin is 60% and the cooking loss is 20% of the trimmed weight. How many pounds of trimmed, cooked strip loin will the chef have left to serve to his customers?
Thursday, August 28, 2014 at 7:51pm

Science
A star's life depends on mass ___ mass=Long life Large mass= ____ life Small mass is long life and large mass is short life?
Thursday, August 28, 2014 at 7:21pm

science
When a test charge q0 = 9 nC is placed at the origin, it experiences a force of 8 times 10-4 N in the positive y direction. (c) If this force is due to a charge on the y axis at y = 3 cm, what is the value of that charge? so in a I found E to be 88888.889 in b I found the F on...
Thursday, August 28, 2014 at 5:13pm

science
how do you calculate the missing variable in work and power;example:you must exert a force of 4.5N on a book to slide it across a table .if you do 2.7J of work in the process,how far haveyou moved the book
Thursday, August 28, 2014 at 5:12pm

Science
Having scientic literacy involves being able to? A. ask scientific qustions. B. evaluate scientic information. C. understand scientific terms. D. all the above. i think C.
Thursday, August 28, 2014 at 4:40pm

science
A particle beam is made up of many protons each with a kinetic energy of 3.25times 10-15J. A proton has a mass of 1.673times 10-27kg and a charge of +1.602times 10-19C. What is the magnitude of a uniform electric field that will stop these protons in a distance of 2 m? I am ...
Thursday, August 28, 2014 at 4:01pm

Science in motion pHY 102
Find the net force produced by a 30-N force and a 20-N force in each of these cases: (a) Both forces act in the same direction. The net force produced by 30-N force is 60-N The net force produced by 20-N force is 40=N Applied Forces Net Forces 30-N = 60-N 30-N
Thursday, August 28, 2014 at 3:43pm

Science
Which of the following best describes a scientific theory? A.A scientific theory is a rule of nature that can never be changed. B.A scientific theory is an educatrd guess about the possible results of an experiment. C.A scientific theory is a description of a pattern of ...
Thursday, August 28, 2014 at 2:10pm

Science
An environmental group claims that a local chemical plant is polluting a nearby river. They are calling for a shutdown of the chemical plant. What evidence would help you the most in evaluating their claim? A.A repeated study that shows chemicals produces by the plant are in ...
Thursday, August 28, 2014 at 1:53pm

science
Which of the following is a valid reason to study science? A.All employers require an in-depth knowledge of sience. B.Carrying out scientific experiments is a requirement of everday life. C.Most colleges require advanced science classes. D.Understanding basic scientific terms ...
Thursday, August 28, 2014 at 1:39pm

Science
help fastwhich of the following statements incorrectly describes a tool used by scientists? A. A compound light microscope enables a scientist to view objects too unaided eye to see. (B).A beaker is a type of glassware a scientist uses in the lab to record data. C. A scale is ...
Thursday, August 28, 2014 at 10:59am

science
_______ describes all the processes associated with the discharge of magma, hot fluids, ash, and gases.
Thursday, August 28, 2014 at 10:49am

science
116In nuclei are produced at the rate of 10 s-1. Calculate the maximum number of 116In nuclei (number in equilibrium) in the sample if the half-life of 116In is 54 m. So far I have come up with ... The half life = 54m x 60 s-1 = 3.24 x 103 s-1 (In2) / λ = In2 / 3.24 x 10^...
Thursday, August 28, 2014 at 10:40am

Science
which of the following statements incorrectly describes a tool used by scientists? A. A compound light microscope enables a scientist to view objects too unaided eye to see. (B).A beaker is a type of glassware a scientist uses in the lab to record data. C. A scale is used to ...
Thursday, August 28, 2014 at 10:31am

Science
which statement best describes the benefit of having a universal system of measurement? A. Scientists from different counties can more easily shared and compare data from experiment. B. Scientists who speak difference languages do not have to translate each others work into ...
Thursday, August 28, 2014 at 10:18am

Science
which statement best describes the benefit of having a universal system of measurement? A. Scientists from different counties can more easily shared and compare data from experiment. B. Scientists who speak difference languages do not have to translate each others work into ...
Thursday, August 28, 2014 at 9:03am

science
Mary is driving on a straight road. Suddenly a deer jumps out in front of her. Mary turns her car to the left to avoid the deer. Which best describes what happens to mary's head position if she is wearing her seatbelt? A) mary's head moves to the left b marys head ...
Wednesday, August 27, 2014 at 9:02pm

7th grade Science
Can you help me figure out the manipulated , responding, & controlled variables in the following? Walker wanted to test how weight of a paper airplane affected the distance the airplane flew. he stood at the starting line and threw the airplane. He measured how far the paper ...
Wednesday, August 27, 2014 at 7:57pm

Science
What are legs when using them to push a heavy weight?
Wednesday, August 27, 2014 at 4:25pm

Science
which statement best describes the benefit of having a universal system of measurement? A. Scientists from different counties can more easily shared and compare data from experiment. B. Scientists who speak difference languages do not have to translate each others work into ...
Wednesday, August 27, 2014 at 9:29am

Science
which of the following describes scientific inquiry?(1 point) A.a statement that describes what scientists expect to happen in experiment. B.facts,figtures,and other evidence gathered through observation. (C).the diverse ways in which scientists study the natural world. D.a ...
Wednesday, August 27, 2014 at 8:57am

Science
which of the following describes scientific inquiry?(1 point) A.a statement that describes what scientists expect to happen in experiment. B.facts,figtures,and other evidence gathered through observation. (C).the diverse ways in which scientists study the natural world. D.a ...
Wednesday, August 27, 2014 at 7:58am

Statistics
1. The average time it takes for a cellphone to reboot is 3 minutes with a standard deviation of 10 seconds. The average time it takes a computer to restart is 5 minutes with a standard deviation of 15 seconds. Both are normally distributed. Suppose that a cellphone and a ...
Wednesday, August 27, 2014 at 7:27am

Math, Science, Sociology, Economics
Math: What is the answer to 1146(150+X)+8911(743+19X) Science: What is photosynthesis? Sociology: What is figuration and functionalism? Economics: What is Opportunity cost? Why is it relevant to life?
Wednesday, August 27, 2014 at 2:14am

P.E
Your friend spends most of his free time eating junk food and playing games on the computer. which way on the health continuum is moving? A. wellness B. long life expectancy C. illness D. obesity i think A
Tuesday, August 26, 2014 at 6:02pm

Science
If an experiment disproves a scientists hypothesis, what should the scientist do next? A. develop a testable question B. revise the hypothesis and try the experiment again. C. develop a theory based on the data gathered in the experiment D. change the dependent variable. Is ...
Tuesday, August 26, 2014 at 4:55pm

Art
Animation has changed from each scene cell being drawn by hand to entire worlds being created on a computer. This is an example of....... A. innovation B. aesthetics C. expression D. creativity I think A am I correct?
Tuesday, August 26, 2014 at 4:02pm

Science
Which of the following is not a model? A. an ant farm B. a bicycle C. an atlas D. a plastic human skeleton I think B is the answer am I correct?
Tuesday, August 26, 2014 at 3:38pm

Science
Turning on the switch in a flashlight starts a chemical reaction in the batteries. The chemical energy is turned to light energy and the flashlight lights up. Which part of this system is an example of a process? A. Turning on the switch is a process. B. The conversation of ...
Tuesday, August 26, 2014 at 3:37pm

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