# Homework Help: Computers: Operating Systems

## Recent Homework Questions About Operating Systems

**Biology**

Proteins are manufactured from the "blueprints" found on DNA. After they are translated, they are moved through a system of internal membranes before being distributed throughout the rest of the cell. At some point in this process, they are modified to their functional form...

**Biology**

Proteins are manufactured from the "blueprints" found on DNA. After they are translated, they are moved through a system of internal membranes before being distributed throughout the rest of the cell. At some point in this process, they are modified to their functional form...

**Educational Technology helppppp**

which of the following is considered an output device? Printer*** Scanner Keyboard Memory Which component is being described below? This component in an input device. It helps bring information to the computer by permitting the user to use keys to enter data and navigate the ...

**Biology**

Proteins are manufactured from the "blueprints" found on DNA. After they are translated, they are moved through a system of internal membranes before being distributed throughout the rest of the cell. At some point in this process, they are modified to their functional form...

**ALGEBRA HELP #4**

The coordinate plane below represents a city. Points A through F are schools in the city. graph of coordinate plane. Point A is at negative 5, 5. Point B is at negative 4, negative 2. Point C is at 2, 1. Point D is at negative 2, 4. Point E is at 2, 4. Point F is at 3, ...

**Science I reallllllyyy need help!!!!**

which of the following describes scientific inquiry? (1 point) a statement that describes what scientists expect to happen in an experiment facts, figures, and other evidence gathered through observation the diverse ways in which scientists study the natural world a well-...

**Biology**

Both sickle -cell anemia and hemophilia A.are cause by genes coded for defective protein. B.are seen in homozygous dominant individuals C.are diseases of the gastrointestinal system D.none of the above

**algebra-math**

When it comes to linear inequalities, these are explained to be similar to a linear equation, but the difference between the two is that the equal signs are replaced with an inequality symbol. It is also explained that when it comes to doing a linear inequality, it is more ...

**algebra-math**

Make a preferred method of solving a system of linear equations and why. Which method do you prefer? Do you think that matrices make the process easier? Or do you prefer not to use matrices? Once again thank you for any help given on this.

**algebra-math**

Create a system of linear equations. Explain the steps for solving a system of linear inequalities. Make a system of linear inequalities problem. Please help me with this?

**Physics**

Inside a box(mass "M"), a light string "X" is atthached to it's bottom and the other end of the string is attached to a mass "m"(this makes a pendulum). This system is attached to the point O(the center of gravity of the system), by a string " Y" and moved with constant speed ...

**Physics**

Two particles A and B has the same mass and are being kept on a rough horizontal table "d" distance apart.B is kept still and A is given a velocity of u towards B.After the collision,if A comes to its previous point show that, u^2 = 2agd[1+(1/e^2)] a- coefficient of friction I...

**physics**

Suppose that a spring is attached to a wall. On the other end of the spring, it is attached to an object of 0.263kg. When the spring is compressed at a distance of 15cm, it holds an elastic potential energy of 20.0J. The horizontal surface has no friction; frictionless. a) If ...

**Finance**

Hello. This is kind of long, but I would truly appreciate it if someone could help me validate my solutions for the three questions listed below. Thank you in advance. A firm is considering acquiring a new segment to add to its product line. The estimated sales growth rate is ...

**physics**

A rocket is fired vertically and reaches a speed of 34.3 m/s in half a second. One and a half seconds later the rocket’s speed is 19.6 m/s. Find the acceleration (in m/s2) and initial velocity (in m/s) of the rocket. Complete the equation of motion for the velocity of the ...

**Algebra1 Word Problem HELP#3**

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 2x − 7 y is greater than or equal to -1/2x + 3 Part A: Describe the graph of the system, including shading and the types of lines graphed. Provide...

**Algebra1 Word Problem HELP**

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 2x − 7 y is greater than or equal to negative 1/2x + 3 Part A: Describe the graph of the system, including shading and the types of lines graphed...

**algebra**

The cost of operating an appliance varies jointly as the number of watts, hours of operation, and the cost per kilowatt-hours. It costs $0.45 to operate a 3000-watt air conditioner for 2 hours at a cost of $0.075 per kilowatt-hour. Find the Cost of operating a 122-watt ...

**Physics Please**

A boy on a swing is pulled to a position 2.34 m off the ground and released. At the fastest and lowest point of the swing the boy is 0.50 m off the ground and travelling 3 m/s. The percent efficiency of this swing system is?

**statistics**

You are ordering a new home theater system that consists of a TV, surround sound system, and DVD player. You can choose from 1616 different TVs, 2222 types of surround sound systems, and 1919 types of DVD players. How many different home theater systems can you build?

**Physics**

Consider the figure above consisting of three particles of mass m attached to a massless rod. Given an axis of rotation through point P, the rod rotates as shown in the figure. If the rod is released from rest in the horizontal position at t = 0. What is the angular ...

**building a stair system**

My stair system, call it a triangle, is 360 inches in diameter, and 77.5 inches high. what is the length and formula?

**Chemistry - Stoichiometry/gases**

When 2.38 g of methane burns in oxygen, 119 kJ of heat is produced. What is the enthalpy of combustion (in kJ) per mole of methane under these conditions? Your answer will be in kJ/mol. the Molar Mass of methane is 16.04, so I did 2.38g/16.04=0.14838 mol Then I did 119 kj/0....

**science**

an 8 kg and a 16 kg block are suspended at opposite ends of a cord passing over a pulley. compute (a) acceleration of the system (b) the tension in the cord connecting the blocks and (c) the tension in the cord supporting the pulley. The weight of the pulley may be neglected.

**Science**

A calorimeter of water equivalent 50g contains 250g of water and 50g of ice at 0 degree celsius, 30 g of water at 80 degree celsius is added to it. The final condition in the system will be

**Pre-Calc**

Use a graphing device to find all solutions of the system rounded to two decimal places. x-3y=1 y=x^3-5x^2 There are 3 possible answers. Thank you!

**History**

How did the system (unitary government) help Qin Shi Huang control the country?

**Finance**

The following are the investment and operating costs for two machines, J and K. Year: 0, 1, 2, 3 J: 11000, 1200, 1300 K: 13000, 1200, 1300, 1400 The WACC is 10.5%. How do I use the WACC to determine which machine is a better buy?

**Algebra**

5. Solve for x in the following system. 6x + 6y = -2 y = x I can't seem to figure this out, can someone give me some steps into solving this? I've tried so many times.

**Chemistry**

What's the difference between the pressure of a system and the partial pressures in relation to Le Chatelier's principles? I know that when the pressure of the system is increased, it goes to the side with less moles/particles and when decreased it will go to the side with the...

**Algebra**

8. Solve the system using elimination. x + 2y = 1 4x + y = 11 So I added both equations and got 5x + 3y = 12 but am unsure of where to go next with it. I am having the same problem on another question just a bit different than this in which it just asks to solve for x.

**Math**

Consider this system of linear equations: 22x − y = -23 (equation 1) 11x + 12y = 1 (equation 2)

**Algebra**

Solve for x in the following system. 6x + 6y = -2 y = x I'm not sure how to get x, because when I tried it left me with both y and x

**Math**

3x-4y=8 5x+3y=23 Based on the above system of 2-equations, which of the following values (x+y) equal? 10, 8, 7, or 5

**Chemistry - thermochemistry**

Hydrogen gas (H2) is generated by the following reaction. Ca(s) + 2 HCl(aq) → CaCl2(aq) + H2(g); ΔH = −542.7 kJ/mol When this reaction takes place in a cylinder (fitted with a piston) containing 1.000 mol Ca(s), 542.7 kJ heat is lost to the surroundings. Because a gas is ...

**Physics**

a beaker contains 500g of water at a temperature of 80 C. How much ice at a temperature -20 C must be dropped in the water so that the final temperature of the system will be 50 C

**STATISTIC MECHANICS**

An insulated beaker with negligible mass contains 0.250 kg of water at a temperatur 75.0°C.e of How many kilograms of ice at a temperature of -20.0°C must be dropped into the water to make the final temperature of the system 40.0°C?

**Health Care System**

Medicaid will cover LTC payment in which situation? a.the individual has turned 65 b.the individual is disabled. c.the individual qualifies for LTC and meets Medicaid's income test. d.the individual did not qualify for LTC insurance.

**Health Care System**

Minitoring is ____ a.the study of the history of a disease b.determining if there is more or less of a disease than in the past c.the study of skin diseases and disorders d.the continuous search for and documentation of disease

**Chemistry**

If 18oo cal:of heat is added to a system while system does work equivalent to 2800 cal:by expanding against its surroundings. What is the value of deltaE for the system?

**PHYSICS**

A young engineer has come up with a back-up system, which is to be used in case of an engine failure. He has devised a system consisting of a pressure vessel containing helium (MHe = 4.0 g/mol) and a folded balloon. In case of an engine failure, the helium is let out of the ...

**Chemistry - Kinetic Molecular Theory**

Question: What is the density (in g/L) of ethyne gas at 743 torr and 12.2°C? The unrounded molar mass of ethyne is 26.036 g/mol. I did some unit conversions, so 743 torr=0.97763 atm and 12.2°C=285.35°K I used the equation d=PMr/RT and I plugged in values to get d=(0.97763*...

**Algebra**

A rectangular garden is 54 feet longer than it is wider. Its perimeter is 292 feet. Write a system of linear equations whose solution gives the width and length of the garden. Use the substitution method to solve and check your answer.

**math**

Q1. Determine the value of k for which the given system of equations has unique solution: a) 2x – 3y = 1 ; k x + 5y = 7 b) 4x – 5y = k ; 2x – 3 y = 12

**science**

what volume of hydrogen peroxide needs to added to treat the system at 100ppm. available hydrogen peroxide is 35%

**Algebra**

How many solutions as a system of equations have? 2X= -10y + 6 & x+5y=3

**math**

a + bc = -1 b + ac = -1 c + ab = -1 Which of these values of 'a' is one solution for this system of equations? A) -2 B) -1 C) 0 D) 2 Please also explain how you got the answer, thanks.

**physics**

Given the system shown, consider all surfaces frictionless. If m=0.5kg is released when it is 1.6 m above the base of M=0.3kg, how long after release will m strike the base ?

**Economics(help!)**

Suppose you are the manager of a watch-making firm operating in a comptetive market.You cost of production is given by C=100+Q^2,Where Q is the level of output and C is total cost. a)If the price of watches is birr 60,how many watches should you produce to maximize profit? b)...

**Thermodynamics**

400 g of water are emptied at 20 ° C in a vessel. The container is placed at Fire of a flame that gives it a certain amount of thermal energy of So that it takes 5 minutes for the water to reach a temperature of 90 ° C. If the vessel does not absorb thermal energy, a) how ...

**physics**

Two boxes are connected by a cord running over a pulley. Box A is on a table and Box B is hanging off of the pulley. The system is released from rest and Box B drops a distance D. What is the word done by gravity on box B?

**Chemistry-titrations**

When an acid is titrated with a Carbonate, do we have to heat the system when Hph is the indicator? If so what is the reason?

**Math**

What are the solutions of the system? y=x^2+3x-4 y=2x+2 a) (-3,6) and (2,-4)** b) (-3,-4) and (2,6) c) (-3,-4) and (-2,-2) d) no solutions

**Java programming**

Hi, I'm trying to figure out how to implement toString() methods into the JavaTest and H2ClassB classes so that the output would be 4 3 7 5 99 3: import java.util.ArrayList; public class JavaTest { ArrayList <JavaTest> list = new ArrayList <JavaTest> (); public ...

**Chemistry PLEASE HELP ME**

Strictly speaking, NO system can be completely closed - for example, hot liquid in the best thermos eventually cools down - but for most purposes a system can effectively be “closed”. How would you create a system which is more or less closed with respect to: a) Heat loss...

**Chemistry**

Strictly speaking, NO system can be completely closed - for example, hot liquid in the best thermos eventually cools down - but for most purposes a system can effectively be “closed”. How would you create a system which is more or less closed with respect to: a) Heat loss...

**Chemistry**

Question: At 300 K,Carbon powder and O2 are included in container of 10dm3.When the system is heated well,all the O2 converts into CO2.Then the system is cooled to the initial temperature. The volume of the Carbon powder is negligible. Find the percentage of the increasement ...

**Math**

Consider the system of equations y= -x^2+9 y=3/x Find the solution of the system to four demimal places

**Business**

After defining the scope of the system, the next step is to: a) conduct a feasibilty study. b) determine requirements. c) form the project team?

**Algebra**

1. The length of a rectangle is twice its width. The perimeter of the rectangle is 24 inches. Write a system of equations in 2 variables. Use substitution to solve the problem. A. Equation 1: L = 2W L= 2(4) = 8 Equation 2: 2L + 2W = 24 2(2W) + 2W = 24 6W = 24 W = 24/6 = 4 (i ...

**Algebra**

1. The length of a rectangle is twice its width. The perimeter of the rectangle is 24 inches. Write a system of equations in 2 variables. Use substitution to solve the problem. A. Equation 1: Equation 2: _________________________________ B. What is the area of the rectangle?

**Physics**

1.A student repeatedly measured the length of a simple pendulum and recorded the results in centimetre as: 36.9, 36.7, 36.8 and 36.6. What is the precision index of this measurement in cm? 0.108 36.75 0.054 0.0269 2 How would the final result of the repeated measurement of the...

**math**

Solve the system:4x+2y-13=0 and 3x=5y+26 by elimination. 3 (4x+2y-13=0) 12x+6y-26=0 4 (3x=5y+26) 12x=20y+104 I need to subtract since the signs are the same: 12x+6y-26=0 Since they don't match up, I'm having trouble subtracting them. I'm not sure what to do next. Please help??

**Math**

Which best describes a system of equations that has infinitely many solutions? consistent, independent inconsistent, dependent consistent, dependent inconsistent How many solutions does this system have? y = x + 5 y = -5x - 1 one none infinite two

**Social Studies**

In the opinion of the company accountant, the managers completely failed to understand what was really going on: a little-known phenomenon known as the Hawthorne effect. According to the Hawthorne effect, when you introduce an innovation is new. Managers try harder because ...

**Algebra**

Student tickets to the Homecoming game cost $5 each. General admission tickets cost $8 each. So far, 150 tickets have been sold. $900 has been collected. A. Write a system of equations for this model in standard form. 5S = Student tickets: 100 sold 8G = General Admissions: 50 ...

**Algebra**

Student tickets to the Homecoming game cost $5 each. General admission tickets cost $8 each. So far, 150 tickets have been sold. $900 has been collected. A. Write a system of equations for this model in standard form. 8G = General Admissions: 50 sold 5S = Student tickets: 100 ...

**Math**

Student tickets to the Homecoming game cost $5 each. General admission tickets cost $8 each. So far, 150 tickets have been sold. $900 has been collected. A. Write a system of equations for this model in standard form. B. Graph the system. ( let each square represents 20 units...

**maths**

Solve the following system of linear equations using matrix method. i)2x+y-2z=10 y+10z=-28 3y+16z=-42

**Thermochemistry**

A piece of tin is heated to 695 °C and dropped into 158 g of water at 23.2 °C. The temperature of the system rises to 30.7 °C. What is the mass of the tin dropped into the water? (C = 0.227 J/g°C for tin, C = 4.18 J/g°C for water)

**Thermochemistry**

A piece of tin is heated to 695 °C and dropped into 158 g of water at 23.2 °C. The temperature of the system rises to 30.7 °C. What is the mass of the tin dropped into the water? (C = 0.227 J/g°C for tin, C = 4.18 J/g°C for water)

**politics**

Which of the following is provided through the mechanics of pluralism, according to Robert Dahl? A. Elites can manipulate mass opinion. B. Aspiring leaders can distribute resources to gain influence. C. Aspiring leaders are limited in the ability to control the political ...

**politics**

Which system would work best to provide a new political party a voice in legislative deliberations? A. Ballot initiatives B. Single-member districts C. Proportional representation D. Direct democracy a?

**math**

What would you need to multiply by in order to solve this system of equations using the linear combination (elimination) method? {6x−2y=4 7x+5y=3 Multiply the 1st equation by 3 and leave the 2nd equation alone. This will eliminate the y's when you add the two new equations ...

**Math**

Which properties justify the steps taken to solve the system? {4x+3y=25 {2x+−5y=19 Drag the answers into the boxes to match each step. 4x+3y=25; −4x+10y=−38 ________________ 13y=−13 _________ y=−1 ____________ 4x+3(−1)=25 _________ 4x−3=25 _______ 4x = 28 ...

**politics**

The civil-service system arose in the late 19th century as a response to: A. the problems created by a small bureaucracy. B. the problem of states having too much public responsibility. C. the challenge of managing a growing rural economy. D. the corruption and abuses of the ...

**politics**

Which of the following statements is NOT accurate? A. The seniority system favors members from one-party regions. B. The seniority system is often attacked as being undemocratic. C. Seniority is an unwritten rule, which is generally followed when appointing committee chairs. D...

**Social studies-Unit 6 :building on Economics Basic**

2. What is one source of revenue for the federal government to pay for public goods and services? A - property taxes B- sales taxes C- income taxes D- excise taxes I think it's c ! 3. What is one the things the federal reserve system does? A- set income tax rates at the ...

**Math**

What are the major advantages of a place value system over a non-place value system of numeration?

**Civics**

Lord Acton, a British historian, was famous for saying, "All power corrupts. Absolute power corrupts absolutely." He believed that any individual or group having too much power was a bad thing. With which statement regarding systems of government would Lord Acton most likely ...

**Maths / Physics (uni level)**

Say I have a centre of rotation at C(x, y, 1 <= z <= 1.5). I need to define a unit normal vector to this. I know it's a length of 1 and this means there's a sphere of radius 1 at the origin so I can get the beginnings of a spherical coordinate system, but I'm a little ...

**accounting**

The following are the transaction of s company will in branch for 2(two) year they follow periodic inventory system. 1. Beginning inventory balance with in birr 10000 2. S company shipped merchandise is birr costing 80000 cash 20000 3. Birr sold merchandise costing 60000 for ...

**Health**

15. Strong social bonds and a good support system can block the negative effects of stress in your life. Which factor can be a poor choice for blocking the negative influences? (1 point) A.associating with peers who are drug free B.having friends who are supportive and ...

**Physics!**

At a steam power plant, steam engines work in pairs, the output of heat from one being the approximate heat input of the second. The operating temperatures of the first are 520°C and 320°C, and of the second 310°C and 170°C. If the heat of combustion of coal is 2.8x107 J/...

**ss**

In what way is the government of the United Kingdom similar to that of the United States? A) Both have a head of government that is a member of the legislative branch. B) Neither government has a formal set of written laws as a framework. C) Both have seen their powers ...

**social studies- helpppp**

France and Britain were able to avoid the worst of the Great Depression because A) their colonies were required to purchase goods from them.**** B) neither had any significant involvement in international trade. C) the Great Depression affected only the United States, not ...

**ss**

Europeans began to settle in Latin America in the 1500s. Many of these settlers married Native Americans. The children of mixed European and Native American ancestry were called mestizos. . Mestizos became a new A) peer group. B) ethnic group.*** C) family group. D) political...

**math**

You play racquetball at a community club. You have two options for paying for court time. Option A: You pay $12 for court time each time you play. Option B: You buy a club membership for $120 and then pay $2 each time you play. a. Write and solve a linear system to determine ...

**math**

A boat travels from one port A to port B, travelling 126 km, upstream (against the current) at a uniform speed, and the trip takes 6 hours. On the way back (downstream), the trip only takes 4.5 hours. Set up and solve a system of equations to find out the speed of the boat ...

**Algebra**

How many solutions does the system of equations have? 3x+12y=20 y=-1/4x+5/3 A) one C) infinitely many B) two D) none

**scence**

he movement of matter through the biosphere is different from the flow of energy in that particulart area which It is cycled through. Generally, the biosphere is a closed system, so matter remains fairly constant. Energy on the other hand, it enters and leaves the system ...

**Science**

How do global positioning systems use elevation points on Earths system to find latitude and longitude A. By using signals from a network of satellite B. By using topographic maps C. By using satellite images D. By using photography

**Science**

Do global positioning systems use elevation on Earths system to find latitude and longitude A. By using signals from a network of satellite B. By using topographic maps C. By using satellite images D. By using photography

**biology**

describe the pathway of blood through the prts of the earthworms circulatory system

**American Government**

What is the role of the Securities and Exchange Commission (SEC)? How does it influence the economy? Explain the difference between capitalism and communism. What role does the government play in each type of economic system?

**Science**

What is an example of a stable system? How were you able to determine whether or not this system is stable?

**PHYSICS**

A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A. What is the tension in...

**PHYSICS, help!**

A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A. What is the tension in...

**Science**

Jupiter, Saturn, Uranus, and Neptune: what is one reason why life probably does not exist on these four planets? A) They have no gravity. B) They are the gas planets. C) They are the giant planets. **** D) They are the rocky planets. Earth seems to be the only planet in our ...

**Algebra**

5) How many solutions does the system of equations have?x-4y=12 and 5x-20y=60 A.one B.two C.infinitely many D.none 6) How many solutions does the system of equations have? y-6x=-3 and 4y-24x=-16 A.one B.two C.infinitely many D.none