# Homework Help: Computers: Operating Systems

## Recent Homework Questions About Operating Systems

**Operating System Application**

Growth of the size in main memory

**Physics**

We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? (show you work)

**Social Studies Pretest Lesson 1 Unit 7**

1: Why is urbanization associated with the Industrial Revolution? A:The expansion of family farms refocused the nation on agriculture. B:The concentration of factories in cities brought job opportunities. C: Settlers expanded the frontier West of the Mississippi river. D: ...

**pre calculus**

In the rectangular coordinate system, each point (x, y) has a unique representation. Explain why this is not true for a point (r, Θ) in the polar coordinate system.

**algebra 1**

Name the point of intersection for the following system, if it exists. 4x â€“ 3y = -3 3x â€“ y = -6

**Physics**

Just as no mechanical device can be 100% efficient, no heat engine can transfer 100% of its heat to a single object. Some of the heat energy must be wasted (released into the environment). We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J ...

**science double check answers**

1.Asteroids in our solar system are a)planets b)comet remains c)found in an asteroid belt** d)pieces of ice 2.Which of the following would not be found on the electromagnetic spectrum? A)The wavelengths of electromagnetic radiation B)The frequency of electromagnetic radiation ...

**algebra**

Solve each system of eaquations by graphing or using a table. 5x-y=12 3x+2y=12

**Psychology Final Exam 2**

Check my answers? 17. A _________ is the functional unit of the nervous system. (1 point) Neuron******* Dendrite Head Cell body 18. The Central Nervous System consists of the __________ and __________. (1 point) heart and blood vessels muscles and tendons axons and dendrites ...

**U.S History**

Which of the following offers the best definition of the phrase "headright system"? A)Settlers were given land and, in return, were expected to farm and build on it.*** B)Settlers were given money if they agreed to sell a portion of their crops to Britain. C)Settlers were ...

**Physics**

We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? Please don't give me the answer! Just help figure out how to find it! The description for the lesson with this question was 1 ...

**American Government**

Please I need Help!!!!!!!!!!!!!!!!!! 1. What type of power does the Constitution grant to the Supreme Court? (1 point) executive power federal power judicial power legislative power 2. Which are examples of judicial restraint in the Supreme Court? Select all that apply. (3 ...

**Physics**

A mass (0.5 kg) and spring (k = 250 N/m) system oscillates with an amplitude of 3.5 cm. a) What is the total mechanical energy of the system? b) What is the maximum speed of the mass? c) What is the maximum acceleration of the mass? I need help please. What equation should I ...

**Algebra**

Can you please help? I am working System of Equations. I need to find the solution of each of the following systems: How do I solve...thank you Y = 5x -3 and Y = -3x +5

**SS**

"We seek no conquest. All we ask it to be left alone According to this quote which statement best summarizes the souths agenda A.to continue their way of life unchanged b to accept changes to the plantation system c. to change the souths borders d. to expand slavery into the ...

**math**

Dr. Mallory practices at your hospital and your competitor. Presented below are data for DRG 469 (major joint and limb reattachments, (lower extremity) with MCC that reflects practice patterns for Dr. Mallory at the two hospitals: Your Hospital Competitor ...

**Economics**

Suppose that there are 1,000 hot-pretzel stands operating in Toronto. Each stand has the usual U-shaped average total cost curve. Both the market demand curve and the supply curve for pretzels are linear, and the market for pretzels is in long-run competitive equilibrium. a) ...

**pre calculus**

use matrices to solve the system of equations , if possible 2x+3y+z=10 2x-3y-3z=22 4x-2y+3z=-2

**pre calculus**

use matrices to solve the system of equations , if possible. 2x+y+2z=4 2x+2y=5 2x-y+6z=2

**Physics**

A mass (0.5 kg) and spring (k = 250 N/m) system oscillates with an amplitude of 3.5 cm. a) What is the total mechanical energy of the system? b) What is the maximum speed of the mass? c) What is the maximum acceleration of the mass? I need help please! Do it step by step and ...

**Calculus**

Find the volume of the solid of revolution obtained by revolving the plane region R bounded by y= x^5, the y-axis, and the line y=3 about the x-axis So far: y=x^5 is equal to x=5th root y. I've plugged that in to pi(r^2)h, and got V = pi ∫[0,3] y^(2/5) dy. so far I've gotten...

**Algebra 1B**

24. Solve the system of equations algebraically. Show all of your steps. Y = x^2 + 2x and y = 3x + 20. Btw this is a workpad problem. I just need to be put in the right direction, on how to do it.

**Math**

The area of a right triangle is 12 square inches, and the sum of the lengths of the two legs, a and b, is 16 inches. Write a system that could be used to find the lengths of the legs of the right triangle.

**Science**

A lead calorimeter with mass of 150g contains 200g of water. The calorimeter and water are in thermal equilibrium at a specific temperature. Two metallic blocks are placed into the water. One is a 50.0g piece of aluminum heated at 90 degrees celcius. The other has a mass of ...

**Science**

A lead calorimeter with mass of 150g contains 200g of water. The calorimeter and water are in thermal equilibrium at a specific temperature. Two metallic blocks are placed into the water. One is a 50.0g piece of aluminum heated at 90 degrees celcius. The other has a mass of ...

**algebra 2a solving systems using matrices**

write the system of equations represented by the matrix [0 1 2 4] [-2 3 6 9] [1 0 1 3] a: x+2y=4 -2x-3y+69=0 x+y=3 b: x+2y=4 -2-3y+6=9 x+y=3 c: y+2z=4 -2x+3y+6z=9 x+z=3 d: x+2z=4 -2x-3y+6=9 think its A

**Physics**

One of their side jobs is a safe delivery and installation. A pulley system is used to lift the safe 2 meters above the ground. But the rope snaps! To avoid cracking from any drops, a large, stiff spring is placed below the safe while it's lifted. If the 1200 kilograms safe ...

**Social Studies**

Could you help me with these questions? 1. Which statement best explains the significance of the signing of the Mayflower Compact? * 2. What was a major reason for the colonization of the Americas by Europeans? * 3. Which reason led to the establishment of colonies in both ...

**science**

I'm stuck on the following questions 1)The geocentric model of the universe states that the Earth is the center of the universe. This is an example of a A)scientific conclusion B)pseudoscience C)scientific law*** D)Scientific method Through process of elimination i know its ...

**precalculus**

When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no solution.

**precalculus**

When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no solution. Give an example that illustrates your answer.

**precalculus**

Can you check my answer? If it is wrong can you please explain why and give the correct answer? Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1

**precalculus**

please check my answers 1.Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1 2.Find the solution to the system of equations given below. x+y+z=2 -x+3y+2z=8 4x+y=4 answer: 0...

**pre calculus**

Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

**Algebra**

A grocery store makes a 20-pound mixture of almonds and cashew nuts. The store charges $4 per pound for almonds and $5.50 per pound for cashews. The total value of the mixture is $92. Write a system to find how many pounds of each type of nut are in the mixture.

**Science**

The lung is to the respiratory system as the ____ is to the integumentary system. A) heart B) kidney C)hand D)brain B

**precalculus**

write the system of equations in row-echelon form 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

**precalculus**

how do you determine when a system of equations is written in row-echelon form?

**object oriented programming**

Let’s consider there will be 5 delicious food available at your new restaurant which will open by the end of 2016. To make the cashier's job easier, build a C++ console application to automate the process of billing on a daily basis. Specifically, the billing system must...

**Social Studies**

Which of the following statements best summarizes the system of railroads shown on the map? A. The majority of the railroads that connected the North to the South were built by 1850. B. The railroads established by 1860 each began and ended at a major American city or port. C...

**pre calculus**

Use Gaussian elimination to write the system of equations given below in row-echelon form 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

**Physics**

Could someone please help walk me through this problem I'm struggling with? Thanks in advance! A brick with mass m1=2.5 kg can move without friction on a horizontal plane. The brick is attached to a wall by an ideal spring with spring constant k=2300 N/m. A second brick with ...

**Physics**

Hi, I've been having trouble with this physics problem. I'm not sure where to begin. A brick with mass m1=2.5 kg can move without friction on a horizontal plane. The brick is attached to a wall by an ideal spring with spring constant k=2300 N/m. A second brick with mass m2=1.2...

**pre calculus**

Create systems of equations in two variables that have (a) no solution, (b) one distinct solution, and (c) infinite solutions. Show that each system has the indicated number of solutions by using a graph or solving the system.

**precalculus**

Which of the following shows an inconsistent system of equations? ________________________________________ 4x - 2y = 10 ; y = 2x - 5 3x + 2y = 1 ; 2x - 3y = 1 2x + y = 2 ; y = -2x - 2 3x + 4y = 5 ; 6x + 8y = 10 Is 4x-2y=10 y=2x-5 the correct answer?

**precalculs**

how do you find all the solutions to the system of equations .2x^2-2x-y=14 .2x-y=-2

**precalculus**

how do you find all the solutions to the system of equations .x+y=0 .x^3-5x-y=0

**precalculus**

8. Solve the system of equations shown below. .3/4x-5/2y=-9 .-x+6y=28 x = 21.5, y = 8.25 x = -8, y = 6 x = 8, y = 6 x = -21.5, y = 8.25

**Social Studies**

The Free-Soil party would most likely agree with which of the following? Plantation system Manifest destiny (my answer) Increased immigration Popular sovereignty

**Physics**

The figure shows a pV diagram of a gas for a complete cycle. During part bc of the cycle, 1190 J of heat flows into a system, and at the same time the system expands against a constant external pressure of 7.00 × 104 Pa as its volume increases from 0.0200 m3 to 0.0800 m3. ...

**math**

he 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, negative...

**World History**

How did the Shinto belief system develop in early Japan? A. Clans erected shrines to worship their ancestors. B. Buddhist ideas evolved into Shinto beliefs. C. Warriors built shrines to remember fallen comrades D. Clans honored powerful natural spirits and gods. Is the answer ...

**precalculus**

Which of the following would be the best first step when solving the following system using the substitution method? • x - y = -4 ; • x + 2y = 5 x = -4 - y x = -4 + y 2y = 5 - x 2y = 5 + x I have solved the equation but I am unsure which is the best first step. x-y=-4 x+2y...

**precalculus**

Which of the following would be the best first step for solving the system of equations by elimination? • 6.3x + 7.2y = 5.4 • 5.6x + 6.4y = 4.8

**History**

Why is urbanization associated with the industrial revolution? The expansion of family farms refocused the nation on agriculture •• The concentration of factories in cities brought job opportunities Settlers expanded the frontier west of the Mississippi River Immigration ...

**Math**

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, ...

**Math**

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, ...

**American History**

The federal government sets requirements that all public schools must follow, while state governments set standards listing what students need to learn. This is an example of what constitutional system? A. dual federalism B. cooperative federalism C. layered federalism D. ...

**physics**

A block and tackle pulley system is used to lift a mass of 200 kg.if the machine has a velocity ratio of 5 and efficiency of 80%.sketch the possible arrangement of the system

**Physics**

Block A, with a mass of 10 kg, rests on a 36.9° incline. It is attached to a string that is parallel to the incline and passes over a massless, frictionless pulley at the top. Block B, also with a mass of 10 kg, is attached to the dangling end of the string. The two blocks ...

**American Government**

The federal government sets requirements that all public schools must follow, while state governments set standards listing what students need to learn. This is an example of what constitutional system? A. dual federalism B. cooperative federalism C. layered federalism D. ...

**Physics**

A tension spring opposes being stretched, but offers no resistance to being compressed (think of a slinky!). A tension spring, with an equilibrium length of 1.25 m, is suspended by one end from a ceiling at a height of 2.5 m above the ground; a mass of 100 g is attached to the...

**MATH HELP NEEDED prt 2**

–2v – 7 = –23 (1 point) 15******** 8 –8 –15 2. start fraction x over 3 end fraction – 10 = –12 (1 point) –6 –66 6****** 66 3. start fraction x over 5 end fraction + 6 = 10 (1 point) 44 30 20******** –20 4. 3(4 – 2x) = –2x (1 point) –1 1 2********* 3 ...

**MATH HELP NEEDED**

. –2v – 7 = –23 (1 point) 15******** 8 –8 –15 2. start fraction x over 3 end fraction – 10 = –12 (1 point) –6 –66 6****** 66 3. start fraction x over 5 end fraction + 6 = 10 (1 point) 44 30 20******** –20 4. 3(4 – 2x) = –2x (1 point) –1 1 2********* 3...

**science**

A system contains 0.15 m3 of a gas at a pressure of 3.8 bar and 150 C. It is expanded adiabatically till the pressure falls to 1 bar. The gas is then heated at a constant pressure till its change in enthalpy is 70 kJ. Determine the total work done.

**math**

please check my answers below and correct me if i am wrong please 1. At Lexi Corp., sales revenue is $20 million, the cost of goods sold is $14 million, operating expenses are $3 million, and income taxes are $1 million. What is the company's operating income? Select one: A...

**American Government**

what kind of state court system is set up so that trial courts hears those cases arising within its own district, circuit, or county, no matter what the subject might be? A. appellate courts B. geographically based courts C. state supreme courts D unified court systems is the ...

**science**

A system contains 0.15 m3 of a gas at a pressure of 3.8 bar and 150 C. It is expanded adiabatically till the pressure falls to 1 bar. The gas is then heated at a constant pressure till its change in enthalpy is 70 kJ. Determine the total work done.

**Circuits and electronics applications3**

Figure 1 below shows the circuit we'll be using to explore the step response of an RLC circuit. The voltage source produces a 1V step at t=0. Initially the resistor has been set to 0Ω. We'll be probing the voltage across the capacitor, which will indicate the amount of charge...

**Circuits and electronics applications3**

Consider the second order low pass filter circuit shown below. The differential equation associated with the input voltage vi(t) and the output voltage vo(t) of this system can be written in the following form: A⋅d2vodt2+B⋅dvodt+C⋅vo=vi Where the coefficients A, B, and C...

**physics**

A liquid stands at the same level in the u-Tube when at rest what will the difference in height h of the liquid in the two limbs of the u-Tube, when the system is given An acceleration a towards right? take a as area of a cross section and G as the acceleration due to gravity

**Algebra**

Create a system of equation that has no solution: - write the equations in two different forms(4) Create a system of equation that has infinitely many solution - write the equations in two different forms (4) One important Question: How am I suppose to form a table out of this...

**Gaussian Elimination Method**

Is my answer correct? Write the system of equations as an augmented matrix. Then solve for x and y. −4x−y=6 12x-2y=-8 Solution = -1,-2

**system of equations**

Write the system of equations as an augmented matrix. Then solve for x and y. -4x-y=6 12x-2y=-8

**Find the solution to the system of equations:**

Are my answers correct? x-2y+z=1 y+2z=2 x+y+3z=3 Solution : 100 010 001 x = 0.429 y = 0.429 z = 0.714

**Gaussian Elimination Method**

Write the system of equations as an augmented matrix. Then solve for x and y. 5x-4y=12 -5x+3y=9

**science**

How much work is done by the system if the internal energy decrease by 100j when 200j applied to the system

**physics**

Specific heat capacity of a certain metal is found by heating the metal and then placing it into water which is in a container made of the same material. The metal has mass of 100g and is heated to 100 degrees celsius. The container has mass of 200g and contains water of 500g ...

**Thermodynamic**

A system contains 0.15 m3 of a gas at a pressure of 3.8 bar and 150 C. It is expanded adiabatically till the pressure falls to 1 bar. The gas is then heated at a constant pressure till its change in enthalpy is 70 kJ. Determine the total work done. Pl hlep me

**american goverment check answers**

9. What criteria might a judge who abides by a philosophy of judicial restraint use to decide a case? (1 point) The judge would consider previous court decisions on the topic but ultimately consider the current circumstances and changes in society. The judge would not consider...

**computer science**

In a particular phase modulation system, each symbol is able to represent 4 bits. What sort of PSK is being used?

**Econ check my answers please**

Below are a few questions I had difficulty with so please check my answers and correct me if I am wrong, thanks :) 1. Kim, a public relations manager, has just completed the process of checking the references of several job candidates. What should she do next? Select one: A. ...

**Economics**

Below are a few questions I had difficulty with so please check my answers and correct me if I am wrong, thanks :) 1. Kim, a public relations manager, has just completed the process of checking the references of several job candidates. What should she do next? Select one: A. ...

**Math**

Solving system of equations by substitution. 52. {5x-2/4+1/2=3y+2/2;7y+3/3=x/2+7/3

**ACCOUNTING**

Budgets are ___________________________. (Points : 1) A a tool for management to use to penalize managers with poor performance B detailed financial plans that quantify future expectations and actions C busy work assigned to keep department managers from wasting valuable time ...

**Science**

A system comprising blocks, a light frictionless pulley, and connecting ropes is shown. The 9 kg block is on a smooth horizontal table The surfaces of the 12 kg block are rough, with μ = 0.30. In Figure 5.7, the mass M is set so that it descends at constant velocity when ...

**java program**

write aprogram that can display the payrol system

**math**

Two ships pursue straight-line courses at steady speeds. At each time t (in hours, where 0 less-than-or-equal t less-than-or-equal 14), the positions of the two ships are given by: Ship A (10t+35, 20t+25) Ship B (11t+15, 22t+15) These coordinates are with reference to a ...

**US History**

ALL of the countries below are matched CORRECTLY with the outcomes of colonization except for: a. English: established permanent settler colonies despite hardships b. Spanish: failed to find gold or to convert the Indians to Christianity c. French: succeeded in the fur trade ...

**American Government**

1) Why are independent regulatory commissions considered quasi-legislative? A) They are part of the legislative branch B) The rules and regulations they make have the force of law** C) They are independent of the executive branch but not the legislative branch D) They are ...

**Algebra**

An engineer designs a satellite dish with a parabolic cross section. The dish is 10 ft wide at the opening, and the focus is placed 8 ft from the vertex. a) Position a coordinate system with the origin at the vertex and the x-axis on the parabola's axis of symmetry...

**physics**

A 2.0 g bullet is shot with an initial velocity of 200.0 m/s into a board (I = 12.0 kg m2). The board is held still by a frictionless pivot a third away from its bottom end, as shown below. Assume that you can treat the board as a uniform rod. 1. What is the initial angular ...

**Physics**

A 4.0 g bullet is shot with an initial velocity of 300.0 m/s into a board (I = 19.0 kg m2). The board is held still by a frictionless pivot a third away from its bottom end, as shown below. Assume that you can treat the board as a uniform rod. 1) What is the initial angular ...

**Algebra**

An engineer designs a satellite dish with a parabolic cross section. The dish is 14 ft wide at the opening, and the focus is placed 4 ft from the vertex. a) Position a coordinate system with the origin at the vertex and the x-axis on the parabola's axis of symmetry...

**physics**

A system consists of a 0.130-kg chunk of ice floating in 1.12 kg of water, all at 0 ∘C. Part A How much thermal energy must be added to the system to convert it to 1.25 kg of water at 15.0 ∘C?

**Social Studies. Please help!**

3. Which of the following statements best summarizes the system of railroads shown on the map? A: The majority of the railroads that connected the North to the South were built by 1850. B: The railroads established by 1860 each began and ended at a major American city or port ...

**physics**

Acceleration of a Mass in a Pulley System Block 1 of mass m1 slides on a frictionless plane inclined at angle θ with respect to the horizontal. One end of a massless inextensible string is attached to block 1. The string is wound around a frictionless movable pulley P of ...

**history**

1. Which statement best explains the significance of the signing of the Mayflower Compact? * 5 points A)The colonists swore to survive together or die in North America. B)The colonists agreed to create their own government and to obey its rules. C)The colonists declared their ...

**math**

Alice is working 2 jobs to save up money for a trip. She works at the ice cream shop for $9 an hour and babysitting for $12 an hour. She needs to earn at least $200 per week and can only work 20 hours per week. Write a system of inequalities to model the number of hours she ...

**Social Studies**

1.What prompted the call to rewrite the Articles of Confederation? A:The desire to win independence by unifying the nation B:The economic downturn caused by the limitations on the central government C:The need to establish a national court system to deal with uprising colonist...