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November 27, 2014

Homework Help: Computers: Operating Systems

Recent Homework Questions About Operating Systems

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algebra
Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
Thursday, November 27, 2014 at 12:47am

Algebra
Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?
Thursday, November 27, 2014 at 12:47am

Algebra
Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of $3.60. How many coins of each kind does he have?
Thursday, November 27, 2014 at 12:47am

Algebra
Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of $3.60. How many coins of each kind does he have?
Wednesday, November 26, 2014 at 10:30pm

Algebra
Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?
Wednesday, November 26, 2014 at 10:28pm

algebra
Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.
Wednesday, November 26, 2014 at 10:27pm

physics
Assume that there is no friction between m2 and the incline, that m2 = 2.4 kg, m1 = 1.2 kg, the radius of the pulley is 0.10 m, the moment of inertia of the pulley is 4.8 kg m2, and θ = 25.0°. a) Find the combined mechanical energy of both masses the instant the ...
Wednesday, November 26, 2014 at 8:23pm

Chemistry
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
Wednesday, November 26, 2014 at 6:32pm

chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules Do not give me a website to ...
Wednesday, November 26, 2014 at 3:07pm

Chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
Wednesday, November 26, 2014 at 2:37pm

Chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
Tuesday, November 25, 2014 at 10:11pm

chem please help drbob222
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
Tuesday, November 25, 2014 at 9:50pm

Intro Biology
I can't find examples in the book as reference. Please help me with these questions and explain why. 1.) Which of the following has no vascular tissue (“plumbing system”)? A) Conifer B) Angiosperm C) Fern D) Moss E) Ginkgo 2.) Which of the following ...
Tuesday, November 25, 2014 at 9:31pm

Chemistry
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
Tuesday, November 25, 2014 at 5:59pm

physics /astronomy
If a system has multiple planets all in the exact same orbital plane, does the transit of one planet imply that all planets in the system must transit as well?
Monday, November 24, 2014 at 9:28pm

Astronomy
Does the probability that a single-planet system shows transits increase, decrease or stay the same if the planet has a rather small or a rather large semi-major axis?
Monday, November 24, 2014 at 7:28pm

physic 2210
A pulley (a soild disk) with mass 2kg and radius 0.3 m is attached by massless rope to two blocks of masses m1=1kg and m2=3 kg. what is the acceleration of block 1 after the system is realeased from rest?
Monday, November 24, 2014 at 6:43pm

accounting
On October 10, 2010, Mason Engineering Company completed negotiations on a contract for the purchase of new equipment. Under the terms of the agreement, the equipment may be purchased now or Mason may wait until January 10, 2011, to make the purchase. The cost of the equipment...
Monday, November 24, 2014 at 11:28am

physics
it takes about 560 kilowatts to run a diesel locomotive at speed around 180km/h.Magnetically levitated trains(mag levs) on the other hand require less power because the magnetic levitation eliminates energy loss to friction.The worst maglev system requires 270 watts to ...
Monday, November 24, 2014 at 10:17am

Chem please help
What does the second law of thermodynamics say about entropy? A. Only changes in entropy can be measured. B. The entropy in a system is zero at equilibrium. C. The entropy in a system and its surroundings tends to increase. D. Entropy cannot be created or destroyed. I think c.
Monday, November 24, 2014 at 12:12am

Health And Physical Ed
true or false the main process for digestion takes place in the stomach true false*** regular excersise stimulates_____which keeps the skeletal muscles moving to assist in digestion and excretion. peristalis ures digestion*** villi the main process of excretion takes place in ...
Sunday, November 23, 2014 at 6:20pm

algebra
Solve by using a system of equations. The number x of MP3 players a manufacturer is willing to sell is given by x = 20p − 1500, where p is the price, in dollars, per MP3 player. The number x of MP3 players a store is willing to purchase is given by x = −4p + 900, ...
Sunday, November 23, 2014 at 6:05pm

Health And Physical Ed
1. during the exchange of air in your lungs, oxygen is being taken into your bloodstream while this substance is being released microorganisms carbon dioxide*** plasma mucus 2. the gas exchange of oxygen to the bloodstream takes place in what part of respiratory system? ...
Sunday, November 23, 2014 at 5:06pm

Algebra 2
Solve Quadratic System x^2+y^2=2 x^2-6y=10 Please show work!!!
Sunday, November 23, 2014 at 3:51pm

HEALTH
1. during the exchange of air in your lungs, oxygen is being taken into your bloodstream while this substance is being released microorganisms carbon dioxide*** plasma mucus 2. the gas exchange of oxygen to the bloodstream takes place in what part of respiratory system? ...
Sunday, November 23, 2014 at 3:07pm

Algebra 2
Solving Quadratic System x^2+4y^2=16 x^2+y^2=4 Please SHOW WORK I'm having trouble solve this...
Sunday, November 23, 2014 at 12:39pm

Algebra 2
Solve Quadratic System x^2+y^2=2 x^2-6y=10 Please SHOW WORK I'm having trouble
Sunday, November 23, 2014 at 12:35pm

physics
it takes about 560 kilowatts to run a diesel locomotive at speed around 180km/h.Magnetically levitated trains(mag levs) on the other hand require less power because the magnetic levitation eliminates energy loss to friction.The worst maglev system requires 270 watts to ...
Sunday, November 23, 2014 at 12:19pm

chemistry due soon
Which of the following phrases can describe an endothermic process? A. A system gives off energy as it cools down. B. Energy is released in forming the bonds of the product molecules in a reaction. C. The net energy change for a reaction is positive. D. Energy is transferred ...
Saturday, November 22, 2014 at 3:36pm

accounting
which is an operating expense a salaries expense b payroll expense
Saturday, November 22, 2014 at 1:39pm

Economics
A city must decide whether to build a downtown parking garage and what rate to charge. It is considering two rates: a flat $1.50-per-hour rate or an all-day rate averaging $1 per hour (based on a $10 daily rate and an average 10-hour stay). Parking demand is given by Q = 900-...
Saturday, November 22, 2014 at 1:51am

Algebra 2
Solving Quadratic System y=4x+1 2x-y+1 Please show work!!!
Friday, November 21, 2014 at 5:39pm

Physics
A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg • m2 and radius 2.40 m. The entire system is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a final position 1.10 m from the center of ...
Friday, November 21, 2014 at 1:45pm

Chemistry/Physics
The kinetic energy of a rolling billiard ball is given by KE=1/2mv2. Suppose a 0.17-kg billiard ball is rolling down a pool table with an initial speed of 4.7m/s . As it travels, it loses some of its energy as heat. The ball slows down to 3.8m/s and then collides straight-on ...
Thursday, November 20, 2014 at 7:27pm

accounting
Starbucks-. Locate the company’s annual report as outlined previously. Find the company’s segment information; it should be in the “Notes to Consolidated Financial Statements” or other similarly named section. Look for the word “Segment” in a ...
Thursday, November 20, 2014 at 5:22pm

Physics
new package moving system in the new improved post office consists of a large circular disc which rotates once every 5 seconds at a constant speed in a horizontal plane. packages are put on outer edge of turntable on one side of room and removed on opposite side. coefficient ...
Thursday, November 20, 2014 at 8:54am

algebra
what is the graph of the system ?y<-x-1 y>x+4
Wednesday, November 19, 2014 at 11:04pm

Chemistry
C2H5NO2 + 2H2O → 2CO2 + NH3 + 3H2 You begin with 1.25 × 10-2 moles of glycine and an excess amount of water that will allow the reaction to proceed completely to products. This is all in a vessel with a volume of 850 mls at 27°C. Assume that the vessel begins ...
Wednesday, November 19, 2014 at 10:32pm

Financing and Budget
Child care operating budgets generally contain a pro forma income statement. To prepare this statement, you must first prepare budgets for _______ and _______. A. estimated income; actual income B. estimated expenditures; actual expenditures C. revenues; expenses D. income; ...
Wednesday, November 19, 2014 at 4:19pm

Financing and Budget
which one of these categories would most likely be found in the operating budget of a day care center? A. Loan payments B.Tables and chairs for classrooms C.Deposits for utility services D. Desks and chairs for the office C.
Wednesday, November 19, 2014 at 3:42pm

Financing and Budget
Which one of the following categories makes up the largest percentage of a child care operating budget? A. Mortgage or rent B. Supplies C. Food D. Salaries and benefits D.
Wednesday, November 19, 2014 at 3:16pm

Financing and Budget
Which of the following financial statements includes the assets, liabilities, and equity accounts of a business? A. Income statement B. Balance sheet C. Form W4 D. Operating budget B.
Wednesday, November 19, 2014 at 2:58pm

Math
what is the solution to the system of equations? 5x + 4y = 8 x - 2y = 10 (not multiple choice) my answer: (-5, -1) What are the missing values? (coincident) 4x + 5y = 8 8x + ____ y = _____ (Not multiple choice) Im not sure how to do this one collection of dimes and nickels is ...
Wednesday, November 19, 2014 at 1:58pm

ECON
Suppose that we are in the early days of the Bretton Woods system, and France has declared a par value for the French franc at FF6 per dollar. The allowable fluctuation band is one percent on either side of par. What is the price ceiling for the dollar in terms of French ...
Wednesday, November 19, 2014 at 11:42am

Econ (International Monetary System)
Suppose Switzerland is on the gold standard and it maintains a strict ratio of gold in its vaults to money (Swiss francs) in circulation. Suppose that it runs a balance of payments deficit. What will happen to its overall money supply? What impact will this have on the Swiss ...
Wednesday, November 19, 2014 at 11:37am

International Business: Please Check Answer
Hi, Please help me! I need to know is these is the correct answer for these questions. Thanks for your help! Some countries try to hold the value of their currency within some range against an important reference currency. This is referred to as what? a. A dirty-float system. ...
Tuesday, November 18, 2014 at 6:28pm

Physical Education
Your body can get antibodies from? A. Immunizations. B. Being exposed to the virus or antibody and having your immune system make it. C. None of the above D. All of the above D? I don't know though becuase All of the above is under none of the above. Im really confused.
Tuesday, November 18, 2014 at 4:33pm

math
15. What is the solution of the linear-quadratic system of equations? y=x^2+5x-3 y-x=2
Tuesday, November 18, 2014 at 10:32am

Health help please!!!
Your body can get antibodies from A. immunizations B. being exposed to the virus or antibody and having your immune system make it C. none of the above D. all of the above I want to say the answer is D but the none of the above is throwing me off? Am I wrong?
Monday, November 17, 2014 at 11:52pm

Bio 11
How is lifestyle related to nervous system development?
Monday, November 17, 2014 at 8:32pm

Business: Help Is Needed ASAP
Help Is Needed ASAP Hi, Please help me! I need to know is these is the correct answer for these questions. Thanks for your help! Some countries try to hold the value of their currency within some range against an important reference currency. This is referred to as what? a. A ...
Monday, November 17, 2014 at 6:19pm

physica
help A thermally insulated vessel containing 100 grams of ice at 0 degrees Celsius . Water at 55 degrees celsius is poured and after some time , the system reaches the equilibrium at a temperature of 10 degrees Celsius. That amount of water in grams was placed . ( heat fusion...
Monday, November 17, 2014 at 5:39pm

Pre-Calculus
The solution of the system of three inequalities is given by a polygonal convex set. 8x + 2y ≥ 36 -3x + 6y ≤ 27 -7x + 5y ≥ -18 The function f(x,y) = 9x + 5y passes through this set. What values of (x,y) give f(x,y) its maximum value? A)(-3, 2) B)(-3, 6) C)(9...
Monday, November 17, 2014 at 1:47pm

Science
Which of the following displays the correct order of structures urine passes through as it is processed by the urinary system? nephron, ureter, urinary bladder, urethra ureter, urinary bladder, nephron, urethra urinary bladder, urethra, nephron, ureter urethra, nephron, ureter...
Monday, November 17, 2014 at 1:12pm

AP Chemistry
Which of the following statements is true regarding two points within a system? A. They will have different types of particles. B. They cannot interact with each other. C. They have different boundaries. D. They have the same internal energy. Im think the answer is d.
Monday, November 17, 2014 at 12:33pm

Math
Solve the nonlinear system by substitution {2x+y=5 {x^2+y^2=50
Monday, November 17, 2014 at 2:40am

P.E. help please
Your body gets antibodies from A. immunizations B. being exposed to the virus or antibody and having your immune system make it. C. none of the above D. All of the above I'm a little confused on which answer to pick between A and D.
Sunday, November 16, 2014 at 11:21pm

Statistics
Community Health Center, a new patient clinic in your town serving only underinsured and uninsured patients, has asked you to help its HIM department get started. Calculate the number of new shelving units needed for a medical record filing system based on eight shelves per ...
Sunday, November 16, 2014 at 8:51pm

law
What is the context of the juvenile justice system
Sunday, November 16, 2014 at 7:55pm

law
Are the juvenile courts doing enough to change the treatment of juveniles in the justice system?
Sunday, November 16, 2014 at 6:24pm

physics grade 11
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in Halton use the same ...
Sunday, November 16, 2014 at 5:22pm

physics
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in Halton use the same ...
Sunday, November 16, 2014 at 11:05am

physics
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in Halton use the same ...
Saturday, November 15, 2014 at 5:34pm

physics
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in Halton use the same ...
Saturday, November 15, 2014 at 5:33pm

physics
1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in Halton use the same ...
Saturday, November 15, 2014 at 5:29pm

physics
In the figure, a 4.3 kg block is accelerated from rest by a compressed spring of spring constant 660 N/m. The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction μk = 0.260. The ...
Saturday, November 15, 2014 at 1:03pm

marhs
A wheel is free to rotate about its fixed axle. A spring with constant k = 290 N/m is attached to one of its spokes a distance r = 23 cm from the axle, as shown in the figure. (a) Assuming that the wheel is a hoop of mass m = 490 g and radius R = 0.97 m, what is the angular ...
Saturday, November 15, 2014 at 11:04am

economics
A transport company purchased a truck for $40,000. The operating cost was $2,000 per month, with average revenues of $4,000 per month. The truck was sold for $16,000 after two years. The company's monthly rate of return was closest to: 3% 5% 7% 10%
Saturday, November 15, 2014 at 8:38am

HEALTH
1. during the exchange of air in your lungs, oxygen is being taken into your bloodstream while this substance is being released microorganisms** carbon dioxide plasma mucus 2. the gas exchange of oxygen to the bloodstream takes place in what part of respiratory system? pharynx...
Friday, November 14, 2014 at 12:36pm

Science
Fill in the blank... 1. ------ digestion occurs in the small intestine through the action of enzymes. 2. ------ can cause infections by injecting the DNA or RNA into hosts 3. The human immune system produces ------- in response to a vaccine, which later can bind to destroy a ...
Friday, November 14, 2014 at 11:52am

Stuck! Help!
Fill in the blank... 1. ------ digestion occurs in the small intestine through the action of enzymes. 2. ------ can cause infections by injecting the DNA or RNA into hosts 3. The human immune system produces ------- in response to a vaccine, which later can bind to destroy a ...
Friday, November 14, 2014 at 11:45am

Math
Which term best describes the solution of the situation represented by the system of inequalities? (Assume that x >= 0 and y >= 0.) 3x + 4y <= 8 2x + 4y <= 6 Answer choices given are: a. alternate optimal solutions b. one optimal solution c. unbounded d. infeasible...
Friday, November 14, 2014 at 9:03am

Finance
Are investors and speculator activities necessary to the system of production, or could businesses function just fine without them? Because I feel like sometimes businesses dont really have to resort to having to sell portions of there business to investors and stuff...
Thursday, November 13, 2014 at 5:40pm

Health
1. The muscular system is essential because it allows our bones to strengthen contract lengthen move 2. which muscle is attached to a bone by tendons? smooth muscle cardiac muscle skeletal muscle involuntary muscle 3. To prevent injury, each time you participate in a vigorous ...
Thursday, November 13, 2014 at 2:37pm

Health
1. The muscular system is essential because it allows our bones to strengthen contract lengthen move 2. which muscle is attached to a bone by tendons? smooth muscle cardiac muscle skeletal muscle involuntary muscle 3. To prevent injury, each time you participate in a vigorous ...
Thursday, November 13, 2014 at 2:20pm

Physics help
A blacksmith at a historical reenactment is making an iron hinge. after placing the iron (0.750 kg) in the fire and shaping it with his hammer it is still at 200 C. he puts the iron piece in an 8 L bucket of water at 25 C. what is the final temp. of the iron (assume it is in ...
Thursday, November 13, 2014 at 1:16pm

Health
a main function of the skeletal system is to protect internal organs allow your body to move store and produce materials all of the above
Thursday, November 13, 2014 at 12:41pm

astronomy/physics
If the Solar System had formed right after the Big Bang, it would have lacked oxygen (O), and therefore water (H2O). Using the solar nebula theory, describe what would have been most different about the planet formation process and the planets formed in this alternative Solar ...
Thursday, November 13, 2014 at 8:47am

Chemistry (Equilibrium)
Consider the following equilibrium system at 900°C: H20(g) + CO(g) <==> H2(g) + CO2(g) Initially 5.0 moles of H2O and 4.0 moles of CO were reacted. At equilibrium, it is found that 2.0 moles of H2 are present. How many moles of H2O remain in the mixture? Would be ...
Wednesday, November 12, 2014 at 9:15pm

Can some one check my finance answers please
Which of the following best states the difference between seed capital and startup capital? Seed capital is for research and planning while startup capital is for operating expenses. Seed capital is provided by venture capitalists while startup capital is provided by banks. ...
Wednesday, November 12, 2014 at 8:36pm

Finance
Which of the following best states the difference between seed capital and startup capital? Seed capital is for research and planning while startup capital is for operating expenses. Seed capital is provided by venture capitalists while startup capital is provided by banks. ...
Wednesday, November 12, 2014 at 6:14pm

Physics
In a horizontal spring-mass configuration, the position of the 0.52 kg mass is described by [x = (1.09 m) sin(2.70t)] a) What is in meters the amplitude of these oscillations? b) What is in m/s the maximum speed of the mass under these conditions? c) What is in Joules the ...
Wednesday, November 12, 2014 at 5:57pm

Financing and Budget
Which of the following financial statements includes the assets, liabilities, and equity accounts of a business? A. Income statement B. Balance sheet C. Form W4 D. Operating budget B.
Tuesday, November 11, 2014 at 3:19pm

History
What are some aspects of the modern American political party system that began during the Jackson era? A.beginnings of political action committees and fundraising B.widespread campaigns for the popular vote, including fliers, slogans, and songs C.of campaign tours and town ...
Monday, November 10, 2014 at 11:26pm

History *PLEASE*
The ideas described in Group B would most likely be the beliefs of which political party? Group A - Favored higher protective traffis - supported a national banking system - wanted federal funds for internal improvement Group B -feared a mixed economy - were proponents of ...
Monday, November 10, 2014 at 10:32pm

History
The ideas described in Group B would most likely be the beliefs of which political party? Group A - Favored higher protective traffis - supported a national banking system - wanted federal funds for internal improvement Group B -feared a mixed economy - were proponents of ...
Monday, November 10, 2014 at 8:01pm

Ap History (Stuck on one last question , Please !
What are some aspects of the modern American political party system that began during the Jackson era? A) beginnings of political action committees and fundraising B) widespread campaigns for the popular vote, including fliers, slogans, and songs C) start of campaign tours ...
Monday, November 10, 2014 at 7:28pm

Physics
An green hoop with mass mh = 2.4 kg and radius Rh = 0.14 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.2 kg and radius Rd = 0.1 m. The other end of the string is attached to a massless axel through the center of an orange sphere on a flat ...
Monday, November 10, 2014 at 3:10pm

college algebra
how to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0
Sunday, November 9, 2014 at 6:36pm

college algebra
hw to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0
Sunday, November 9, 2014 at 6:35pm

Physics
Two masses ( 2.3 kg and 4.2 kg) connected by a massless rope hung over opposite ends of a frictionless pulley. Each mass is initially 1.50 m above the ground, and the top of the pulley is 6.5 m above the ground. What maximum height does the lighter object reach after the ...
Sunday, November 9, 2014 at 6:07pm

Physics
Two objects are moving in the xy-plane. Object A has a mass of 3.2 kg and has a velocity of Va= (2.3 m/s)i + (4.2m/s)j and object B has a mass of 2.9 kg and has a velocity of Vb= (-1.8m/s)i + (2.7m/s)j. What is the total momentum of the system? (should I use dot product here?)
Sunday, November 9, 2014 at 4:28pm

Physics
An interacting system of two objects has no external force acting on the system. The first has a mass of 2.00kg and is moving with a velocity (2.00m/s)i + (1.00m/s)j at time t=0s. The second object has a mass of 3.00kg and is moving with a velocity (-1.00m/s)i + (1.00m/s)j at ...
Sunday, November 9, 2014 at 4:22pm

science
Why is the system of sun and planets called the solar system
Sunday, November 9, 2014 at 8:49am

Physics with Calculus
The system shown in the figure is in static equilibrium. The rod of length L and mass M is held in an unpright position. The top of the rod is tied to a fixed vertical surface by a string, and a force F is applied at the midpoint of the rod. The coefficient of static friction ...
Saturday, November 8, 2014 at 10:45pm

Physics help please
A blacksmith at a historical reenactment is making an iron hinge. after placing the iron (0.750 kg) in the fire and shaping it with his hammer it is still at 200 C. he puts the iron piece in an 8 L bucket of water at 25 C. what is the final temp. of the iron (assume it is in ...
Friday, November 7, 2014 at 9:36pm

Physics
A pendulum consists of a 2.1 kg stone swinging on a 3.6 m string of negligible mass. The stone has a speed of 7.9 m/s when it passes its lowest point. (a) What is the speed when the string is at 60° to the vertical? (b) What is the greatest angle with the vertical that the...
Friday, November 7, 2014 at 6:23pm

Signals & Systems
The suspension system of a car is modelled by the following differential equation: M*((d^2*y)/(d*t^2) + D*(dy/dt) + Ky( t ) = x( t ) where y(t) is the vertical position of the car body, x(t) is the external force coming from the ground acting on the car body, M is the mass of ...
Friday, November 7, 2014 at 3:22am

Chemistry due soon
What is enthalpy? A. Enthalpy is the kinetic energy of a system. B. Enthalpy is the heat involved in a reaction. C. Enthalpy is the temperature of a reaction. D. Enthalpy is the mass involved in a reaction. I think the answer is a or b
Thursday, November 6, 2014 at 10:45pm

Science 8A
Umm, can someone give me an example of a stable system? Also, how were you able to determine whether or not this system is stable? Please help! Urgent!
Thursday, November 6, 2014 at 1:13pm

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