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October 21, 2014

Homework Help: Computers: Computer Science

Recent Homework Questions About Computer Science

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science
calculate the mass in mg of solid chromium nitrate needed to make 250 ml of an aqueous solution with a pH OF 4.00. The Ka of [cr(H2O)6]+3 IS 1.0*10-4.
Monday, September 15, 2014 at 1:57am

computer science
Which of the following is a type of software program used to write code and develop other programs. A: a command line interpreter B: the turtle graphics window C: an operating system D: an integrated development environment Please help asap!
Monday, September 15, 2014 at 1:21am

COMPUTER SCIENCE
Which of the following is a type of software program used to write code and develop other programs. A: a command line interpreter B: the turtle graphics window C: an operating system D: an integrated development environment Please help asap!
Sunday, September 14, 2014 at 10:37pm

Grade 9 Science
In each situation s below , it seems that a new substance may have been produced. Explain why each situation represents a physical change. a) A tailor makes a new suit out of a piece of fabric. b) A chef makes a salad out of lettuce, tomatoes and cucumbers. I really need ...
Sunday, September 14, 2014 at 6:32pm

Science
Help me unscramble the words acnsrl spgei
Sunday, September 14, 2014 at 6:18pm

Science/physics
I done the problem and was wondering if my answer is right I got 1.87 and then 12.4 degrees above x axis please help At time t = 0 s, a puck is sliding on a horizontal table with a velocity 4.60 m/s, 32.0° above the +x axis. As the puck slides, a constant acceleration acts...
Sunday, September 14, 2014 at 3:27pm

Science
Suppose the atomic mass unit had been defined as 1/10 the average mass of an atom of phosphorus .what would the atomic mass of carbon be on this scale? What would Avogadro's number be ?
Sunday, September 14, 2014 at 9:29am

Science
An airplane lands with a velocity of 100m.s/1.The maximum rate at which it can slow down is 5,0m.s/2.What is the minimum time needed to come to rest, starting from when it first touches ground?
Sunday, September 14, 2014 at 7:21am

Science
What is the cell structure involved in photosynthesis and respiration? What is the starting materials and raw materials of photosynthesis and respiration? What is the end product of photosynthesis and respiration? What is the energy requirement of photosynthesis and respiration?
Sunday, September 14, 2014 at 1:58am

Physical science
A 3.0-kg cat runs to the left at 10m/s and a 12-kg dog runs to the right at 4.0m/s what is the total kinetic energy?
Saturday, September 13, 2014 at 10:12pm

Science
5. A team of scientists is testing a new drug on AIDS patients. They expect patients to develop fewer AIDS-related illnesses when given the drug, but they don't expect the drug to cure AIDS. Thought Process: a. What is the independent variable? New drug treatment b. What ...
Saturday, September 13, 2014 at 8:17pm

science
(1.b) Calculate your de Bröglie wavelength and momentum when you are driving a car at a speed of 104 km/hr (~65 mph), assuming your mass is 80 kg.
Saturday, September 13, 2014 at 6:19pm

Science
If you are riding your bike and hit a curb and stop suddenly at 25m/s when you hit the curb and it took you only .75 seconds to stop after hitting the curb. What was your acceleration?
Saturday, September 13, 2014 at 5:31pm

Physical Science
For questions #14 – 17, write an equation for the reaction of magnesium oxide with sodium chloride to produce magnesium chloride and sodium oxide. 14. Show the formulas of the reactants. 15. Show the formulas of the products. 16. Write the balanced the equation for this ...
Saturday, September 13, 2014 at 3:33pm

Physical Science
Please Help me with this question and example in full details please. Scientists tested the effect of a fertilizer on the growth of plants. They had 2 sets of plants, Group A which gets fertilizer, water and sun and Group B which gets only water and sun (but in equal amounts ...
Saturday, September 13, 2014 at 3:08pm

Science
what is spectral broadening
Saturday, September 13, 2014 at 12:46pm

engineering science
An object is kept in equilibrium on an incline by means of supporting force, which is at an angle of 30 degrees o the inclined. The weight of the obbject is 500N. The incline forms an angle of 45 degrees with the horizontal. The coefficent of the friction between the surfaces ...
Saturday, September 13, 2014 at 11:52am

science
Is it possible that free Internet content might one day replace textbooks?
Saturday, September 13, 2014 at 3:23am

CIS111(Computer)
How many folder menu options are available in Windows 7?
Friday, September 12, 2014 at 10:16pm

The Curriculum
What is the best strategy to use when a teacher is providing for learning of physical knowledge as a part of science? A. Give detailed information by telling children about physical knowledge. B. Have someone demonstrate an experiment and debrief. C. Set up the materials and ...
Friday, September 12, 2014 at 9:57pm

Science
a body rolled on a surface with speed of 10m/s comes to rest after covering distance of 50 m find cofficient of friction
Friday, September 12, 2014 at 8:50pm

science
Turning on the switch in a flash light starts a chemical reaction in the batteries. The chemical energy is turned to light energy and the flashlight lights up. Which part of this an example of a process?
Friday, September 12, 2014 at 8:39pm

Veterinarian assisted
1. In the __________, an animal patient's hair is clipped and its skin is scrubbed to prepare for surgery.  A. hospital ward  B. surgical suite  C. treatment area  D. grooming area  2. Supervision of the treatment area is usually the responsibility...
Friday, September 12, 2014 at 6:17pm

science
what the heck ms.sue you literally skipped over my question. i've been next to my computer screen waiting for you to answer my question.
Friday, September 12, 2014 at 6:01pm

science
if the paramecium overheats, what could happen to the metabolism
Friday, September 12, 2014 at 5:37pm

computer science
Using visual logic build a program that asks the user for a whole number, N<100, determine how many quarters, dimes, nickels, and pennies make up N cents with the least amount of coins
Friday, September 12, 2014 at 5:33pm

Physical Science
Modern oil tankers weigh over a half-million tons and have lengths of up to one-fourth mile. Such massive ships require a distance of 4.8 km (about 3.0 mi) and a time of 22 min to come to a stop from a top speed of 26 km/h. (a) What is the magnitude of such a ship's ...
Friday, September 12, 2014 at 3:37pm

Language Arts - Please Check My Answer For This
Please help me with the following: Read the sentence. Juanita used her affinity for numbers to help her design a computer program that relied on college-level math formulas, even though she was only in middle school. Based on the context clues in the sentence, what is the best...
Friday, September 12, 2014 at 2:29pm

computer science
The problem is to calculate the usable area in square feet of a house. Assume that the house has a maximum of four rooms, and that each room is rectangular. I need help writing a program description,analysis,test,and with pseuocode with it.
Friday, September 12, 2014 at 1:21pm

computer science
In the Meteorological institute at Ruritania, one can find the following at Shiaho Railway Station in 2013 • In May 22 days with rainfall totaled 89 mm in that month • In June 1822 days with rainfall totaled 127 mm in that month • In Jule 8 days with rainfall ...
Friday, September 12, 2014 at 5:15am

computer science
Under the Von Neumann architecture, a program and its data are both stored in memory. It is therefore possible for a program, thinking a me mory location holds a piece of data when it actually holds a program instruction, to accidentally (or on purpose) modify itself. What ...
Friday, September 12, 2014 at 5:11am

computer science
CSI 16 1 Group Assignment 1 201 3 P age 2 of 6 1. 1. How many milliseconds (ms) are in 1 second? 2. How many microseconds are in 1 second? 3. How many nanoseconds (ns) are in 1 millisecond? 4. How many microseconds are in 1 millisecond? 5. How many nanoseconds are in 1 ...
Friday, September 12, 2014 at 5:10am

Science (college level)
1. What solar temp is needed for the peak intensity of radiation to occue at .2 micrometers? Remembering that humans can see light only between .4 and .7 microns, would the sun look brighter or dimmer at this new temp? 2. How much variation in earth orbital distance from the ...
Friday, September 12, 2014 at 5:07am

Science
Identify the dependent and independent variables in the following experiments. 1. Height of bean plants is recorded daily for 2 weeks. 2. Percent absorption by a pigment is measured for red, blue, green, and yellow wavelengths of light. My thought process: 1. a. Dependent: ...
Thursday, September 11, 2014 at 11:32pm

physical science
what causes friction?
Thursday, September 11, 2014 at 10:30pm

physical science
a bowling ball loses .5kg x m/s momentum as it hits bowling pins. how much momentum do the pins gain? please help
Thursday, September 11, 2014 at 10:27pm

Atmospheric Science
1. What solar temp is needed for the peak intensity of radiation to occue at .2 micrometers? Remembering that humans can see light only between .4 and .7 microns, would the sun look brighter or dimmer at this new temp? 2. How much variation in earth orbital distance from the ...
Thursday, September 11, 2014 at 9:27pm

Science
What is spectral broadening, Quasars, and the Expansion theory
Thursday, September 11, 2014 at 9:19pm

science
Suppose that a biologist states that the average height of undergraduate students at your university is 205 cm plus or minus a standard deviation of 17 cm. What does this mean? Does it mean that the height of undergraduates at the university ranges from 17 cm less that the ...
Thursday, September 11, 2014 at 8:13pm

Science
So what would you find something in the house? Product Symbols Precaution One example would be appreciated
Thursday, September 11, 2014 at 8:01pm

science
If you had an object that measured 4.0 cm for width,and 4.5 cm for height.how would you calculate the volume for this object?
Thursday, September 11, 2014 at 7:38pm

Science
What is red shifting and blue shifting
Thursday, September 11, 2014 at 6:17pm

Science
What is a protostar
Thursday, September 11, 2014 at 6:00pm

Science
What is apparent brightness and absolute brightness in Science
Thursday, September 11, 2014 at 5:50pm

Science - Please Check My Four Answers
Please help me with the following questions: 1. Which is usually the best way to present or communicate inferred data? A. in a bar graph B. in a data table C. in a simple diagram D. in a written paragraph I know the answer isn't C or D(I got C wrong), but now I think the ...
Thursday, September 11, 2014 at 5:43pm

science
Which of the following is a good study habbit.
Thursday, September 11, 2014 at 4:55pm

Science
What is the first step in the scientific method? (I WAS ABSENT DURING LESSON) A- Observation B- Hypothesis C- Conclusion D- Test
Thursday, September 11, 2014 at 4:52pm

Science - Please Check My Answers
Please help me with the following: Which is usually the best way to present or communicate inferred data? A. in a bar graph B. in a data table C. in a simple diagram D. in a written paragraph I know the answer isn't C or D(I got C wrong), but now I think the answer is B. ...
Thursday, September 11, 2014 at 3:52pm

science
Which of the following is an example of a physical system? hurricanes Volcanoes Glaciers Plant & Animal Communities ***All of the Above*** is it all of the above? Pls help asap!
Thursday, September 11, 2014 at 3:40pm

Science!
Which of the following is a valid reason why a scientist might reject a scientific theory? A. Some people disagree with it. B. It covers too broad a topic. C. New evidence contradicts it. D. It is too old. Is the answer C?
Thursday, September 11, 2014 at 3:17pm

Physical science
1. Nicotine,a poisonous compound found in tobacco leaves,is 74% carbon,8,65% hydrogen and 17,35% nitrogen (a)calculate the empirical formula of nicotine (b)what is the molecular formula of nicotine if it has a molar mass of 165 g.mol^-1
Thursday, September 11, 2014 at 1:00am

Science
how can you determine that a coin is not pure silver if you know the mass and volume of the coin?
Wednesday, September 10, 2014 at 10:17pm

Science
If the temperature rose from 25C to 45C how many degree Fahrenheit would that be
Wednesday, September 10, 2014 at 9:42pm

Science
Why sunlight produces more spectral lines than other light sources
Wednesday, September 10, 2014 at 9:15pm

Science
What information can astronmores gain from spectral lines of light
Wednesday, September 10, 2014 at 9:08pm

Science
Fluorescent lights must not end up in a landfill. Why must these lights be properly disposed of
Wednesday, September 10, 2014 at 9:00pm

math
The price of a computer fell 20% this year. If the computer now costs $550, how much did it cost last year
Wednesday, September 10, 2014 at 8:53pm

science
The ------are the things about an object that can be observed,such as it's size,color,shape,or sound.
Wednesday, September 10, 2014 at 8:45pm

science
The measure of how much material makes up an object is the?
Wednesday, September 10, 2014 at 8:41pm

Science
Which of the following describes a relationship between science and society? (1 point) Scientific discoveries can impact human life; therefore, society must remain scientifically literate. Scientific discoveries rarely impact human life; therefore, it is not necessary for ...
Wednesday, September 10, 2014 at 7:53pm

biology
jordan is doing a science fair project on the effect of music on the growth of tomatoes. he has two tomato plants, plant A and B, that he grows in a window and gives the same amount of water. plant A is exposed to classical music using headphones attached to the soil. ...
Wednesday, September 10, 2014 at 7:14pm

Physical Science
What is the kinetic energy of a 1850 kg car that is traveling at 58.0 km/h? B. How much work was done to give the car this kinetic energy assuming the car starts from rest? C. How much work must be done to stop the car?
Wednesday, September 10, 2014 at 4:45pm

Physical science
A silver nitrate solution is added to a solution of potassium chloride.the products formed are silver chloride and potassium nitrate 1.which product is a precipitate 2.write down the reaction in a molecular form.indicate states 3.write down the net ionic equation
Wednesday, September 10, 2014 at 4:17pm

Physical science
Give one word or term of the following descriptions 1. A reaction that results in the formation of an insoluble salt 2.the process in which ions whithin an ionic substance are separated 3.the positive ion 4.a proton acceptor
Wednesday, September 10, 2014 at 4:13pm

Computer
Each of the following is a typical feature of a fee-based internet back up service EXCEPT ______. backup to external hard drive universal access file feedback information delayed deletion
Wednesday, September 10, 2014 at 2:18pm

science
solved a ball is dropped from the top of a tower 100 meter high. simultaneously another ball is thrown upwards from ground with a speed of 50 m/s . after what time do they cross each other.
Wednesday, September 10, 2014 at 1:47pm

Physical science
Choose the correct answer to the following question 1.The following pairs of ions results in a precipitate being formed... (a)calcium and carbonate (b)sodium and sulphate (c)potassium and iodide (d)sodium and nitrate
Wednesday, September 10, 2014 at 12:44pm

Science
A hammer with a 500-g head exerts an average force of 810n on a nail speed as it drives the nail 4 mm into wall. What was the speed of the hammer head when it hit the nail?
Wednesday, September 10, 2014 at 10:44am

Critical thinking
Since Jessica’s participation in local politics increased significantly after she joined her school’s political science club, it is clear that her involvement in that club led her to take an interest in politics. The argument above is flawed because
Wednesday, September 10, 2014 at 9:33am

engineering science
An object weighing 60N rest on a slope forming an angle of 17.5 degrees with the horizontal. A force of 44N parallel to the sloping surface just moves the object upwards. Calculate the frictional force.
Wednesday, September 10, 2014 at 8:08am

science
the string of pendulum is 2.0 m long,the bosy is pulled sideway so that the string becomes horizontal and the bob is released what is the speed with which the bob is released ?what is the speed with which the bob arrives the lowest piont?
Wednesday, September 10, 2014 at 12:24am

science
A vehicle starts from rest and accelerates with a constant acceleration, covering 200m in 5s. it then continues at a constant velocity for 300m before decelerating with a constant 2m/s^2 deceleration to a stop. what is the maximum speed attained, total time traveled, total ...
Tuesday, September 9, 2014 at 8:38pm

Science!
An oven is a technological system. Which of the following describes an input into this system? A. Setting the temperature B. Burning gas releases heat. C. A thermostat monitors the temperature and increases the gas flow when the temperature falls too low. D. A cake is baked Is...
Tuesday, September 9, 2014 at 6:10pm

science
what is the weight of the ethyl alcohol that exactly fills a 200.00 ml container? The density of ethyl alcohol is 0.789 grams/ml
Tuesday, September 9, 2014 at 4:33pm

Science/Biology
In DNA bases, CG is one pair and AT is another pair because the double ring bonds with the single ring. Why can't Guanine bond with Thymine?
Tuesday, September 9, 2014 at 4:13pm

Physical Science
A lamp bulb is rated 100w. Why is a time factor not included in the rating?
Tuesday, September 9, 2014 at 2:55pm

Science
The active sections that are located along fault lines are called A. stress accumulations. B. recurrence gaps. C. seismic gaps. D. seismic risks.
Tuesday, September 9, 2014 at 12:37pm

Science
When taking a bath, we use approximately 450 lbs of water. How much heat, measured in British Thermal Units (BTU) is required to heat the water from 60 degrees Fahrenheit to 104 degrees Fahrenheit?
Tuesday, September 9, 2014 at 9:24am

Science
A classmate states that igneous rock must always become a sedimentary rock next, according to the rock cycle. Explain why this is not correct.
Tuesday, September 9, 2014 at 9:08am

science
It takes stu, a slimy slug, 20 minutes to travel from his favorite bush to the local trach can (a trip of 30 meters), how far can he travel in 1 hour (60 minutes)?
Monday, September 8, 2014 at 11:15pm

Science
Can one organism be a consumer, omnivore, predator and prey? Give an example that completely explains answer.
Monday, September 8, 2014 at 10:12pm

Science
Does Earth rotate or orbit each day?
Monday, September 8, 2014 at 7:38pm

Physicsl Science
A cart on a linear track has a uniform acceleration of 0.172 m/s^2. What is the velocity of the cart 4.00 s after it is released from rest?
Monday, September 8, 2014 at 7:32pm

Physical Science 8th grade
A balloon filled with air does not rise as a balloon filled with helium. What does this tell you about the density of helium? A. Helium is more dense than air B. Helium is less dense than air C. The two gases have the same density D. When heated, helium becomes more dense
Monday, September 8, 2014 at 7:29pm

SCIENCE
A flask weights 46.8 g when it is empty and 121.6 g when filled with water. When the same flask is filled with another liquid, the mass is 91.2 g. What is the density of the second liquid?
Monday, September 8, 2014 at 7:24pm

Science!
Which of the following is not a process of a stream load? A. Suspension B. Bed Load C. Materials in solution D. Divide Im thinking D but also C?
Monday, September 8, 2014 at 7:07pm

science
Three horizontal ropes pull on a large stone stuck in the ground, producing the vector forces and shown in the figure below. Find the magnitude and direction of a fourth force on the stone that will make the vector sum of the four forces zero. The magnitude of vector A is 99.5...
Monday, September 8, 2014 at 6:01pm

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

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