# Homework Help: Computers: Operating Systems

## Recent Homework Questions About Operating Systems

Math
You have \$30 to spend on picking 25 pounds of two different types of fruit at a farm. The apples cost \$1.40 per pound the blueberries cost \$.90 per pound and the cherries cost \$1.10 per pound. You want prices many pounds of apples as the other two fruits combined. A.) write a...

Math: Parametric Equations
The graph of the parametric equations x=cos(t) y=sin(t) meets the graph of the parametric equations x=2+4cos(s) y=3+4sin(s) at two points. Find the slope of the line between these two points. So far I've set up the system of equations cos(t)=2+4cos(s) sin(t)=3+4sin(s) but it ...

political science
During the 2nd Party System in American politics, parties moved from a ______ in Congress to a _______ in order to pick candidates and develop a party platform. caucus; national convention informal poll; direct primary caucus; direct primary random selection; direct primary

Computer science
Is computer a system?

Statistics
Calculate the number of new shelving units needed for a medical record filing system based on eight shelves per unit at 36 inches per shelf. The average record size equals 0.30 inches, and the center anticipates seeing 4,500 patients the first year.

english comp
revise the following sentence to use modifiers correctly, clearly and effectively. *= revised sentence 1.The student cafeteria is operated by a college food service system chain. * A chain of food service system operates the student cafeteria. Thank you

Social Studies
Please check thanks! 1. Which action on the part of the progressives had the LEAST immediate effect on South Carolina? a. ending child labor b. ending business trusts*** c. outlawing the use of alcohol d. extending suffrage to women 2. Which amendment to the U.S. Constitution ...

PE
2. The brain and spinal cord make up the A. Reflex Pathway*** B. Peripheral Nervous System C. Central nervous system D. The fight-or-flight response 3. Uncontrolled muscle spasms due to a flood of brain activity are called A. Paralysis B. A coma C. Meningitis D. A seizure*** 4...

P.E.
2. The brain and spinal cord make up the A. Reflex Pathway B. Peripheral Nervous System C. Central nervous system D. The fight-or-flight response 3. Uncontrolled muscle spasms due to a flood of brain activity are called A. Paralysis B. A coma C. Meningitis D. A seizure 4. The ...

Mathematics
Does the figure of a star have rotational system? if it does find the angle of rotation?

physics
A mass-spring system oscillates on a horizontal frictionless surface with an amplitude of 3.35 cm. If the spring constant is 222 N/m and the mass is 0.580 kg, determine the mechanical energy of the system. Determine the maximum speed of the mass. Determine the maximum ...

Physics
A girl standing on a stationary uniform plank 10m long. The plank can move with negligible friction along the surface of the water. A) the girl walks along the plank with a velocity of 2ms-1 relative to the plank until she reaches the end of the plank. The centre of mass of ...

Algebra
Solve the system of equations and check your solution. x^2+y^2=25 x+2y=10 I tried but I got only the 2 x values 8 plus or minus the square root of 164 all over 2. I know the answer is wrong but I can't find my mistake. Can you show me step-by-step how to solve this system of ...

Physics
A horizontal circular platform (m = 110.1 kg, r = 3.21m) rotates about a frictionless vertical axle. A student (m = 98.3kg) walks slowly from the rim of the platform toward the center. The angular velocity, omega, of the system is 3.9 rad/s when the student is at the rim. Find...

History
1.How did New England's textile industry affect both children and women? (5 points) ⦁ It allowed them to earn a living wage until the age of 25. ⦁ It gave them opportunities not available on family farms. ⦁ It permitted them to complete their schooling. &#...

Physics 1
A textbook of mass 1.95 kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.100 m , to a hanging book with mass 3.08 kg . The system is released from rest, and the books are observed to move a distance 1.27 m ...

Physics
An AC power supply operating at a frequency of 220 Hz is connected across an inductor. The maximum voltage of the source is 4 V, and the maximum current is 65 mA. What is the inductive reactance? What is the inductance of the circuit?

physics
A ball bounces to 34 percent of its original height. *1) What fraction of its mechanical energy is lost each time it bounces? *2) What is the coefficient of restitution of the ball-floor system? - I was able to solve part one and get an answer of .66, but part two I don't know...

physics
A ball bounces to 34 percent of its original height. *1) What fraction of its mechanical energy is lost each time it bounces? *2) What is the coefficient of restitution of the ball-floor system? - I was able to solve part one and get an answer of .66, but part two I don't know...

physics
The system of small objects shown in the figure below is rotating at an angular speed of 2.0 rev/s. The objects are connected by light, flexible spokes that can be lengthened or shortened. What is the new angular speed if the spokes are shortened to 0.15 m? 1.0m x 1.0m distance.

Physics- Optics
A double lens system is made of +35.0 cm lens (lens #1) and a - 26.0 cm lens (lens #2). Lens #1 is placed at x = 0 cm on a meter stick and lens #2 is placed at x = 30.0 cm. Where on the meter stick will the final image be formed when looking at a distant object? s2"=f2(f1-d)/...

Finance
BUNYAN LUMBER, LLC Bunyan Lumber, LLC, harvests timber and delivers logs to timber mills for sale. The company was founded 70 years ago by Pete Bunyan. The current CEO is Paula Bunyan, the granddaughter of the founder. The company is currently evaluating a 5,000-acre forest it...

math
BOOKS A library contains 2000 books. There are 3 times as many non-fiction books as fiction books. Write and solve a system of equations to determine the number of non-fiction and fiction books.

Health
The functional unit of the nervous system is.. A. The Neuron B. The Brain*** C. A reflex D. The cerebrum

physics
A mass hung from a spring stretches the spring by 11 cm when the mass is resting at its equillibrium position. What will be the frequency of oscillation of this system if the mass is put in motion?

physics
A playground merry-go-round of radius 2.00 m has a moment of inertia I = 255 kg·m2 and is rotating about a frictionless vertical axle. As a child of mass 25.0 kg stands at a distance of 1.00 m from the axle, the system (merry-go-round and child) rotates at the rate of 14.0 ...

physics
The system of small objects shown in the figure below is rotating at an angular speed of 2.0 rev/s. The objects are connected by light, flexible spokes that can be lengthened or shortened. What is the new angular speed if the spokes are shortened to 0.15 m? (An effect similar ...

Algebra
Solve each system. y=2x+2 y=-2x-6

Algebra
the sum of two numbers is 18. The difference between three times the lesser number and the greater number is 10. A)define variables and formulate a system of equations from this situation B)solve your system of equations algebraically and find the greater number

Computer science
Is computer a system?

Health
the main parts of the central nervous system consist of the brain and the

algebra
Find solutions to 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

star*** by my answer 1. When you must handle several hazards at the same time, the best tactic is to (1 point) compromise the hazards. adjust speed to separate the hazards. minimize, then separate the hazards. **** 2. How many zones of space surrounding your vehicle are ...

1. When you must handle several hazards at the same time, the best tactic is to (1 point) compromise the hazards. adjust speed to separate the hazards. minimize, then separate the hazards. minimize, then compromise the hazards. 2. How many zones of space surrounding your ...

Biology
In the classification of eukaryotes, protsists were once placed in a single kingdom. Briefly evaluate whether this classification system is accurate. Why might it be difficult to classify some slime molds as unicellular or multicellular? I know the first one is innacurate, but...

Phys-Lens Question
A double lens system is made of +35.0 cm lens (lens #1) and a - 26.0 cm lens (lens #2). Lens #1 is placed at x = 0 cm on a meter stick and lens #2 is placed at x = 30.0 cm. Where on the meter stick will the final image be formed when looking at a distant object? s2"=f2(f1-d)/...

Social Studies
1. Which fact best supports the claim that Southeast Asia has diverse cultural influences? A)Singapore has a thriving economy based on exports to other nations B)Minangkabau wedding ceremonies blend Hindu and native traditions*** C)Southeast Asia is made up of a large ...

Algebra
I need help Solving the system of equations algebraically and Showing all the steps involved. y=x^2+2x y=3x+20

Physics
A double lens system is made of +35.0 cm lens (lens #1) and a - 26.0 cm lens (lens #2). Lens #1 is placed at x = 0 cm on a meter stick and lens #2 is placed at x = 30.0 cm. Where on the meter stick will the final image be formed when looking at a distant object? s2"=f2(f1-d)/...

History
5.)what was the main benefit of the factory system? A.)it cut cost's and made workers more efficient *** B.)it gave people their first chance too support themselves C.)it reduced pollution caused by family-based power sources D.)it increased the value of the workers and as a ...

Chemistry
We're doing a spontentaity lab in chemistry and I wanted to make sure I was using the right equation to do the questions! Could someone make sure this is right?? q system = - (q water - q calorimeter)

Algebra
For a nonsmoker, the biological half-life of theophylline is 8 hours. Find the amount of the drug retained in a nonsmoker's system 18 hours after taking a one-unit dose. (Round your answer to three decimal places.)

Physics
In Europe, the standard voltage is 230 V (rms), AC, and 50 cycles/s. Suppose you take your 5.00 W electric razor to Rome and plug it into the receptacle (with an adapter to fit the receptacle but not to change the voltage). (The standard voltage in the United States is 120 V (...

Social Studies
The federal system and the unitary system most differ in that, A-): The unitary system has many different levels of government, but the federal system does not. B-): The Federal system allows citizens to vote on leaders, but the unitary system does not. **** C-): The unitary ...

Social Studies
1. Which of the following was a reform of governor Arnall? (choose all that apply) A. introducing civil service to government officials. B. increasing the salaries of military families C. Expanding voting rights D. Making the prison system more humane 2. Which of the following...

SCIENCE!!
1.How do scientists classify small objects in the solar system? A)By size B)By shape C)by size, shape, and temperature D)by size, shape, and composition** (**=ANSWER!!)

mit
Quiz 12, Problem 4 (2 points possible) A uniform rod of length d is initially at rest on a flat, frictionless table. The rod is pivoted about a point a distance d/3 from one of its ends, and is free to rotate on the table about this pivot. A small glob of clay (mass m) ...

mit
Two circular pucks, each of mass M and radius R, slide toward each other and are about to collide on frictionless ice. The pucks have glue on their edges and when they collide the pucks will stick together. Before the collision, the rightward-travelling puck has speed 2v and ...

mit
1 point possible) A uniform disc of radius R and mass m1 is rotating with an angular speed ωi about an axis passing through its center and perpendicular to the disc's plane. A small box of mass m2, initially at the center of the disc, moves away from the center and stops ...

Algebra II
An air show is scheduled for an airport located on a coordinate system measured in miles. The air traffic controllers have closed the airspace, modeled by a quadratic equation, to non-air show traffic. The boundary of the closed airspace starts at the vertex at (10, 6) and ...

Health and physical education
The peripheral nervous system (Select all that apply)A. Is made up of the brain and spinal B. cord Links the body to the brain C. Is made up of sensory and motor neurons D. Is responsible for thought and reasoning.......A and C?

Social Studies
A system in which a series of workers and machines work to add individual parts to a product is known as a(n)____and it_____. Link please to help me?

PHYSICS
A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in gravitational ...

Physics
A student on a piano stool rotates freely with an angular speed of 3.07 rev/s. The student holds a 1.38 kg mass in each outstretched arm, 0.759 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 4.72 kg·m2, a ...

Physics
A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in gravitational ...

physics
Two stars with masses 2.75 x 10^30 kg and 5.92 x 10^30 kg form a binary system. If the two stars have an average separation of 7.28×10^8 km, compute the magnitude of the gravitational force in Newtons between the stars. Express your result in scientific notation and to three...

Algebra
Solve each system using substitution: x+ 2y = 8 and 3x-4y=4

physics
A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley. Answer Thi

Physics
An astronaut exploring a distant solar system lands on an unnamed planet with radius 3,860 km. When the astronaut jumps upward with an initial speed of 3.5 m/s, she rises to a height of 0.62 m. What is the mass of the planet to within 0.1%?

Physics
3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

PHYSICS HELP
3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

PHYSICSS HELP
3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

Calculus
1) A telephone company has 10,000 phones in a certain city where the basic rate is \$4 per month. The officials have evidence that if the charge is reduced the number of phones will increase at an estimated rate of 1,000 phones for each 25 cent reduction. What rate would yield ...

Math
You are setting up a system of programming codes for a universal TV remote. Each code will have five digits and cannot include a 0 or repeat any digits. How many codes: A) do not contain a 1? My answer: 8x7x6x5x4 = 6720 codes B)have 2 as the 2nd digit and 4 as the fourth digit...

Physics
A 100 hp motor raises a 200lb elevator 200 ft in 10 sec. The efficiency for the elevator system is 72.7% or 73%. How much energy is lost in 10 sec? Answer: 193 Btu Show work

History
I've been looking for the answers to questions on my study guide for a test I will have for a couple hours and I got a lot of them. However, there are some that I still have a hard time finding. Here are the questions. If I can be told even some of these, that would be great ...

History
Which question would be the BEST help you write a report regarding the changes in the political system during Jackson's presidency? A. How did Jackson react to the votes of the 1824 election? B. When did Jackson decide to run for president? C. Did Jackson believe the campaign ...

4. Which one of the following philosophies makes every employee a quality inspector for his or her own work? A. Six sigma C. Kaizen B. Quality at the source D. TQM 5. According to Maslow’s theory, what happens when a need is satisfied? A. The need disappears and won’t ...

math
Aj bought a portable game system on sale for \$150.the portable game system was 70% of the regular price.aj concluded that the original price of the portable game system must have been \$225. Aj correct? justify your answers part b is 70% of an original price the same 30% of an ...

Finance
Bell Mountain Vineyards is considering updating its current manual accounting system with a high-end electronic system. While the new accounting system would save the company money, the cost of the system continues to decline. The Bell Mountain’s opportunity cost of capital ...

chemistry
Rationalize how the addition of the silver nitrate to the Fe/SCN equilibrium system had an effect even though neither Ag nor NO3 appears in the equation shown in the text. Equation in text is FE3+ + SCN- <> [FeSCN]2+. I know that AgSCN is formed and precipitates and that...

Physical Education
You digestive system has three main functions: digestion, absorption, and elimination. In which organ does absorption begin? A)Mouth B)Stomach C)Small intestine (MY ANSWER) D)Gallbladder

biology assignment
How are cohesion and adhesion properties of water linked to photosynthesis Assignment: maximum of 3 pages Introduction, main body, conclusion, reference (havard referencing system)

physics
Two blocks are sliding along a frictionless track. Block A (mass 3.73 kg) is moving to the right at 1.50 m/s. Block B (mass 4.48 kg) is moving to the left at 1.80 m/s. Assume the system to be both Block A and Block B. a) what is the total momentum of the system before the ...

physics
you are trying to balance a tray of dishes to make it easy to carry. at one end of the 0.6m tray are four plates with total mass 0.5 kg with their centres of mass exactly above the left edge of the tray. how far from the left edge should you place 2.1 kg jug of milk so that ...

History
2. The new boundary line set by the Adams-Onis Treaty had which of these affects? a) It created a system of dual governance in Florida. b) It represented the completion of Manifest Destiny. c) It began the decline of Spain's New World empire. d) It allowed the United States to...

Science-The Solar System
What are two major differences in the composition of the inner and outer planets? I know that the inner planets are small, hard, and rocky, and the outer planets are large and gaseous. What is another difference?

Health
Drugs work in the brain by tapping into the brain’s communication system and ________ with the way nerve cells normally send, receive, and process information. A. Exploring B. Assisting C. Interfering D. All of the above D?

amx
which question would best help you write a report regarding the changes to the political system during jackson's presidency jishka

Algebra
the sum of two numbers is 38.the greater number is 8 more than the other number.find each number.use a system of linear equations to justify your answers.

Science
Can someone describe the G protein receptor system and the tyrosine-kinase receptor system. I wanna know how these two systems are similar and how these two systems are different in their of structures and functions.

Math
Let P be the point (0,-1) and Q be the point (3,2). In this Cartesian coordinate system, find the point on the line segment PQ that is twice as far from P as from Q. Please help, I need this for a test and i have totally forgotten the formula and notes and how to do anything ...

social studies
To which system of government is the federal system most similar? A - The Unitary system B - The confederal system C - The Unitary System D - The confenderal System ******

Health
Which organ is part of both the respiratory system in the digestive system? A. Epiglottis B. Nose C. Larynx <<<<<< D. Esophagus

chem12
2HI(g)--H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= -2x H2= x I2=x equilibrium 2HI= 0.5-2x H2= x I2...

chem12
2HI(g)--H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= -2x H2= x I2=x equilibrium 2HI= 0.5-2x H2= x I2...

chem 12
1.0 mol of each of the gases, CO, H20, CO2 and H2 are placed in a 2.00L container and allowed to reach equilibrium. It is found at equilibrium 0.40 mol of CO is present. Calculate the value of K eq for the system. C0(g) + H20(g)--- CO2(g) + H2(g) Intial CO= 0.5 mol/L H20= 0.5 ...

science
If I mix 300g of reactant A with 100g of reactant B in a close system how much will it weigh

Physics
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of the ring. The ring ...

Phys
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of the ring. The ring ...

Physics
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of the ring. The ring ...

Physics
You stand on a frictionless platform that is rotating with an angular speed of 3.9 rev/s.Your arms are outstretched, and you hold a heavy weight in each hand. The moment of inertia of you, the extended weights, and the platform is 7 kg · m2. When you pull the weights in ...

Physics
A woman with mass of 57 kg stands at the rim of a horizontal table having a moment of inertia of 570 kg m2 and a radius of 1.5 m.The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then starts walking ...

Physics
A pendulum is constructed of a mass m connected to a mass ess rigid rod of lengthl. As shownin the figure, the other end of the rodis suspended from a point on the ring ofradius R. The pendulum is free to swing in a vertical plane that is also the plane of the ring. The ring ...

American government
James Bryce believe that the constitution was fine example of A. Mass democracy B. Development of an oligarchical system of government. C. An incrementally improved system not far removed from the magna Carta D. A governing system that encouraged the proliferation of political...

chem 12
2H2S(g)---2H2(g) + S2 delta H=220KJ k eq is 0.40 a 10.0L vessel containing 2.0 mol of H2S, 2.2 mol of H2, and 2.5 mol of S2 Calculate a trail k eq value to see whether the reaction is at equilibrium. trail k eq =(h2)^2(S2)/(H2S)^2 = (0.22)^2(0.25)/(0.2)^2 = 0.3025 therefor keq...

Physics
Hi I am having difficulty with this question: Consider a simple “system” of a thin lens with focal length 12 cm, an input plane at 25 cm in front of the lens and an output plane at 11 cm beyond the lens. a) Find the matrix for the simple system b) Why is B = 0 in this case...

health
The cardiovascular system is also known as the ________. A. Blood pathway system B. Heart gateway system C. Circulatory system D. Vascular crossings system A?

body system
7.)During the exchange of air in your lungs, your body seeks to keep oxygen and release ____________which will then exit your body A.)Microorganisms B.)Carbon Dioxide C.)Plasma D.)