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April 20, 2014

April 20, 2014

**Recent Homework Questions About Operating Systems**

Post a New Question | Current Questions

**Physics**

heat gained in anyting changing temp =mass*c*(tf-ti) heat gained by melting ice: mass*Lf where Lf is the heat of fusion for ice per mass. Now, when this happens in a closed system, everything has the same final temperature, and the sum of all heats gained is zero (some of them...
*Tuesday, December 10, 2013 at 6:35pm*

**algebra**

what is the solution of the following system {3x + 3y =10 {-9x-9 =-30 Can you show step by step please.
*Tuesday, December 10, 2013 at 1:49pm*

**Physics**

Ice of mass 51.5 g at -10.2° C is added to 218 g of water at 13.5° C in a 111 g glass container of specific heat 0.200 cal/g-°C at an initial temperature of 24.9° C. Find the final temperature of the system.
*Tuesday, December 10, 2013 at 1:48pm*

**Algebra**

Which linear system of equation does the matrix represent [2 -3=10] [5 6=-12] is it {2x + 5y =10 {5x + 6y =-12
*Tuesday, December 10, 2013 at 1:47pm*

**Physics**

Help!!!! Please!!! The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator. A certain refrigerator has a coefficient of performance of 4 and requires 515 W of...
*Tuesday, December 10, 2013 at 1:37pm*

**Algebra2**

what is the solution to the above system of equation 2x + 5y =-4 4x -5y =22
*Tuesday, December 10, 2013 at 12:20pm*

**Social Studies**

1. Diversity most closely means (1 point) sharing cultural traits and practices with others. making up a whole of many different parts. being a member of a small ethnic group. having many similar regions next to one another. 2. How does life in Istanbul differ from life in ...
*Tuesday, December 10, 2013 at 11:43am*

**classical mechanics**

Attach a solid cylinder of mass and radius to a horizontal massless spring with spring constant so that it can roll without slipping along a horizontal surface. If the system is released from rest at a position in which the spring is stretched by an amount what is the period ...
*Tuesday, December 10, 2013 at 10:39am*

**Ap Physics 1**

The 1800 kg tractor exerts a force of 17500N backward on the pavement, and the system experiences forces resisting motion that total 2400 N. If the acceleration is 0.210 m/s2, what is the mass of the airplane? (b) Calculate the force exerted by the tractor on the airplane, ...
*Tuesday, December 10, 2013 at 9:53am*

**Algebra2**

Please me with this thanks What is the solution of the system of equations? 3x + 2y + z =7 5x + 5y + 4z =3 3x + 2y + 3z =1
*Tuesday, December 10, 2013 at 9:40am*

**Ap Physics 1**

The 1800 kg tractor exerts a force of 1.75 104 N backward on the pavement, and the system experiences forces resisting motion that total 2400 N. If the acceleration is 0.210 m/s2, what is the mass of the airplane? (b) Calculate the force exerted by the tractor on the airplane...
*Tuesday, December 10, 2013 at 9:37am*

**Chemistry**

HNO2/NO2^- system. With H3O^+ the NO2^- uses that as H3O^+ + NO2^- ==> HNO2 + H2O With OH^- the HNO2 uses that as HNO2 + OH^- ==> NO2^- + H2O
*Monday, December 9, 2013 at 5:34pm*

**Chemistry **

Use equations to explain how a buffer system, such as hno2:no2, reacts with h3o and oh?
*Monday, December 9, 2013 at 4:40pm*

**Astronomy**

1. In this collection of problems we will try to use what we have learned to see what information about a hypothetical Solar System planet we can extract from observations. The planet, Nursat, is observed to be in opposition every 374 days. Use this information to find the ...
*Monday, December 9, 2013 at 3:44pm*

**Astronomy**

In fact, more precise calculations suggest that ISON was on a hyperbolic, unbound orbit. How much more precise? Find the minimal speed with which the comet would have had to be moving when observed at perihelion in order to eventually escape the Solar system, in km/s.
*Monday, December 9, 2013 at 3:42pm*

**Algebra 1 (Reiny or Kuai)**

1. The school band sells carnations on Valentine's Day for $2 each. They buy the carnations from a florist for $0.50 each, plus a $16 delivery charge. a. Write a system of equations to describe the situation. A: y = 2x; y = 0.50x + 16. b. Graph the system. What does the ...
*Monday, December 9, 2013 at 2:57pm*

**Algebra 1 (Reiny or Kuai)**

1. Which x-values should I choose to graph these equations (y = x; y = -x + 6) so that they intersect? 2. The school band sells carnations on Valentine's Day for $2 each. They buy the carnations from a florist for $0.50 each, plus a $16 delivery charge. a. Write a system ...
*Monday, December 9, 2013 at 1:24pm*

**law**

http://www.google.com/search?q=punishment+system+Morris+and+Tonry&oq=punishment+system+Morris+and+Tonry&aqs=chrome..69i57.12437j0j8&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8
*Sunday, December 8, 2013 at 1:23pm*

**law**

can someone help me find the information I need for this question please. What are the theoretical and practical problems with the comprehensive punishment system Morris and Tonry propose?
*Sunday, December 8, 2013 at 1:19pm*

**Math**

assuming you want a polynomial of lowest degree, that would be a cubic y=ax^3+bx^2+cx+d (1,1): a+b+c+d=1 (0,1): d=1 (2,5): 8a+4b+2c+d=5 (-1,-5): -a+b-c+d=-5 solve the system to get (and avoiding fractions) 3y = 5x^3-9x^2+4x+3
*Sunday, December 8, 2013 at 7:28am*

**PHYSICS IMP PLS**

The center of gravity of the fuel/rocket system does not move. There is no net force on the rocket-fuel system. The rocket goes right, the fuel goes left. The momentum of the fuel to the left is equal and opposite to the momentum of the rocket to the right. The rocket pushes ...
*Sunday, December 8, 2013 at 4:40am*

**Chemistry**

Consider the titration of 100.0 mL of 0.260 M propanoic acid (Ka = 1.3 ✕ 10−5) with 0.130 M NaOH. Calculate the pH of the resulting solution after each of the following volumes of NaOH has been added. (Assume that all solutions are at 25°C.) (a) 0....
*Sunday, December 8, 2013 at 1:31am*

**Math Help!**

1.) Plot a Cartesian coordinate system 1 equation : For x = 0 - y = 8 Multiply both sides by - 1 y = - 8 For y = 0 2 x = 8 Divide both sides by 2 x = 4 Mark points ( 0 , - 8 ) x = 0 , y = -8 and ( 4 , 0 ) x = 4 , y = 0 and draw line 2 equation: For x = 0 3 y = 11 Divide both ...
*Sunday, December 8, 2013 at 12:39am*

**Math Help!**

1.) Solve the system by graphing. You may use paper or a calculator. 2x - y = 8 x + 3y = 11 2.) The revenue for a certain brand of toothpaste is y = 2.5x where 'x' is the number of tubes of toothpaste sold and 'y' is the total income for selling 'x' ...
*Saturday, December 7, 2013 at 11:28pm*

**college algebra**

solve the system 2x+y=-4 -x+y= 2 2x + y = -4 -2x + 2y = 4 3y = 0 y =0 x = -2 (-2,0)
*Saturday, December 7, 2013 at 9:38pm*

**Math**

1.) Can a system of linear equations have exactly two solutions? A. True B. False 2.) The solution of a system of equations with no solution describes what kind of lines? a.) parallel b.) perpendicular c.) skew d.) coincidental
*Saturday, December 7, 2013 at 8:33pm*

**Math**

1.) Solve the system by graphing. You may use paper or a calculator. 2x - y = 8 x + 3y = 11 2.) The revenue for a certain brand of toothpaste is y = 2.5x where 'x' is the number of tubes of toothpaste sold and 'y' is the total income for selling 'x' ...
*Saturday, December 7, 2013 at 8:30pm*

**college algebra**

solve the system 2x+y=-4 -x+y= 2
*Saturday, December 7, 2013 at 8:23pm*

**Math Homework**

5x + 2y = -17 x = 3y 5(3y) + 2y = -17 15y + 2y = -17 17y = -17 y = -1 x = 3(-1) x = -3 (-3, -1) 2.) Solve the system by substitution. x/3 + y = 4/3 -x + 2y = 11 y = -x/3 + 4/3 -x + 2(-x/3 + 4/3) = 11 -x -2x/3 + 8/3 = 11 -5x/3 = =25/3 -3/5(-5x/3) = 25/3(-3/5) x = -5 (-5, 3) 3...
*Saturday, December 7, 2013 at 2:20pm*

**Math Homework**

Hello! I need help with these math questions, thanks! :) 1.) Solve the system by substitution. 5x + 2y = -17 x = 3y 2.) Solve the system by substitution. x/3 + y = 4/3 -x + 2y = 11 3.) Solve the system by elimination. 2x - 3y = 0 2x + 6y = 3 4.) Solve the system by elimination...
*Saturday, December 7, 2013 at 1:47pm*

**math**

Identify the solution(s) of the system of equations, if any. 2x+5y=10, y=2-x
*Saturday, December 7, 2013 at 10:57am*

**Dyanamics**

A particle of mass m moves in a x-y plane. the co-ordinates of the particle at any instant are given by x=acos(wt) & y=bsin(wt) where a,b,w are constsnt.Determine the angular momentum of the particle with .r.to the origin of the co-ordinate system
*Friday, December 6, 2013 at 7:00pm*

**Math**

find the circumference of the wheel. Find the circumference of the circuit, multiply it by 12 , then divide by the circumference of the wheel change everything to metres. Since you are in the metric system, this is very easy to do.
*Friday, December 6, 2013 at 6:51pm*

**physics**

In the figure, two skaters, each of mass 58.0 kg, approach each other along parallel paths separated by 2.79 m. They have opposite velocities of 1.50 m/s each. One skater carries one end of a long pole of negligible mass, and the other skater grabs the other end as she passes...
*Thursday, December 5, 2013 at 11:11am*

**physics**

Suppose a driver's car needs to travel 46.4 miles in 1.000 hour at a constant speed. If the tires of the car have a rolling radius of 28.4 cm, what will be the period of rotation of each tire? Suppose a moon of a planet in a distant solar system has an average orbital ...
*Wednesday, December 4, 2013 at 9:53pm*

**Physics **

A400 N child is swing that is attached tow ropes 2m long , find the gravitational potential energy of the child-earth system relative to the red line level when ropes make an angle with the vertical .
*Wednesday, December 4, 2013 at 7:12am*

**Chemistry**

Find the equilibrium constant. 1. The equilibrium constant for the reaction,! Fe3+ + SCN- ⇋ FeSCN2+ (at a specific temperature), can be determined by first preparing a standard solution of FeSCN2+ and comparing its absorbance of light to an equilibrium system of unknown ...
*Tuesday, December 3, 2013 at 11:46pm*

**physics**

An obnoxious brat assigns his 0.0221-kilogram pet mouse Mickey the role of stunt mouse by stuffing him into a spring gun and shooting him up into the air at some angle. During the launch process the spring transfers 0.707 J of energy into the \'mouse Earth gravitational ...
*Tuesday, December 3, 2013 at 11:32pm*

**AIS**

Regarding COBIT, which of the following statements is true? a) COBIT means Cost Objectives for Information and Related Technology b) COBIT rejects the definition of internal control from the COSO report c) COBIT states that a company’s management should play a minor role ...
*Tuesday, December 3, 2013 at 11:19pm*

**CHEMISTRY**

Find the equilibrium constant. 1. The equilibrium constant for the reaction,! Fe3+ + SCN- ⇋ FeSCN2+ (at a specific temperature), can be determined by first preparing a standard solution of FeSCN2+ and comparing its absorbance of light to an equilibrium system of unknown ...
*Tuesday, December 3, 2013 at 9:03pm*

**physics**

An obnoxious brat assigns his 0.0221-kilogram pet mouse Mickey the role of stunt mouse by stuffing him into a spring gun and shooting him up into the air at some angle. During the launch process the spring transfers 0.707 J of energy into the \'mouse Earth gravitational ...
*Tuesday, December 3, 2013 at 9:02pm*

**Windows 7 operating system**

the president of a small company selling collectible sports items , LFO Inc., is traveling from North America
*Tuesday, December 3, 2013 at 7:15pm*

**College algebra**

Solve the system Y=3x-2 6x-2y=30
*Tuesday, December 3, 2013 at 3:29pm*

**College algebra**

Solve the system X=2y+3 3x+4y=59
*Tuesday, December 3, 2013 at 3:28pm*

**operating system**

Problem 3- A block of mass m1 = 4 kg moves from rest under the influence of a varying force F(x) = 4x + 38, where F is in newton and x is in meters, on a rough horizontal surface having a coefficient of kinetic friction of 0.2. The block is connected by a light cord passing ...
*Tuesday, December 3, 2013 at 11:04am*

**AP Chemistry**

The system CO2(g) + H2(g)<->H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO. How many moles of CO2 must be added to the system to bring the equilibrium CO ...
*Monday, December 2, 2013 at 9:18pm*

**physics-**

Adding friction to a pulley problem, regardless of if a mass in on an incline or not, will almost always increase the tension in an atwood machine- type pulley problem. This is because friction will always oppose motion, so there will be more forces working against the force ...
*Monday, December 2, 2013 at 8:45pm*

**Finance**

Firm is contemplating the purchase of a new warehouse inventory management system which will cost 3,600,000 at the end of its 8 year life. The warehouse management system will be depreciated straight line to 300,000 over its 8 year life. It is estimated it will reduce costs by...
*Monday, December 2, 2013 at 6:24pm*

**Physics (fix)**

Adding friction to a pulley problem, regardless of if a mass in on an incline or not, will almost always increase the tension in an atwood machine- type pulley problem. This is because friction will always oppose motion, so there will be more forces working against the force ...
*Monday, December 2, 2013 at 4:40pm*

**Physics **

Problem 3- A block of mass m1 = 4 kg moves from rest under the influence of a varying force F(x) = 4x + 38, where F is in newton and x is in meters, on a rough horizontal surface having a coefficient of kinetic friction of 0.2. The block is connected by a light cord passing ...
*Sunday, December 1, 2013 at 11:36pm*

**Physics**

If you use the equation for heat released/absorbed to support your explanation, Q = m*c*(T2 - T1) where m is the mass, c is the specific heat capacity and T is the temperature. Since the only substance involved is water, c is the same for both systems. We can also say that the...
*Sunday, December 1, 2013 at 8:02pm*

**physics**

A certain elevator car has mass 2200 kg and is lifted by cables driven by an electric motor. The efficiency of the lift system (motor, pulleys, cable, etc.) is 67.0%. As the elevator car moves at constant speed of 3.0 m/s it encounters 220N of friction coming from its tracks. ...
*Sunday, December 1, 2013 at 7:46pm*

**Windows 7 operating system**

A medium-sized survey company stores sensitive government data that is used as part of the study. A security requirement from the government requires that all sensitive data must remain stored at the company's head office. All staff and the head office network have ...
*Sunday, December 1, 2013 at 2:08pm*

**Finance - Capital Budgeting/Bid Price**

We have been requested by a large retailer to submit a bid for a new point-of-sale credit checking system. The system would be installed, by us, in 89 stores per year for three years. We would need to purchase $1,300,000 worth of specialized equipment. This will be depreciated...
*Sunday, December 1, 2013 at 12:07pm*

**Health (Ms. Sue)**

1. Compare three types of hereditary diseases. A: Single-gene diseases occur when 1 gene out of the 30,000 to 40,000 genes in the body has a harmful mutation, whereas in complex diseases, more than one gene influences the onset of the disease. However, chromosomal diseases can...
*Saturday, November 30, 2013 at 9:29pm*

**Behavioural Economics**

1.Which of the following is NOT one of the mantras prescribed the practitioner’s guide to nudging? (any one) A. If you want people to do something, make it easy and fun B. Always run between-participant experiments to ensure a test of causality C. There can be no evidence...
*Thursday, November 28, 2013 at 3:44am*

**PHYSICS**

The rms output voltage of an AC source is 210 V, and the operating frequency is 90 Hz. Write the equation giving the output voltage as a function of time t.
*Wednesday, November 27, 2013 at 9:40pm*

**introduction to health care **

the term universal in the canda health act means that a.all canadiands must pay into the system b.all residents of a given province are covered under that's provinces health care plan c.a Canadian resident can be covered by the health care plan of the provice he visits d....
*Wednesday, November 27, 2013 at 7:52am*

**physics**

The shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behavior of the springs attached to the axles. Each of the identical springs attached to the front axle supports 303 kg. A person pushes down on the middle of the front ...
*Tuesday, November 26, 2013 at 3:45pm*

**Chemistry**

1) A dog has the same mass for 3 years. State whether this represents an equilibrium or steady state situations, and give your reasons. I'm not sure if I got this question right... I think this is a steady state because the dog is opened to the environment where oxygen is ...
*Monday, November 25, 2013 at 5:18pm*

**Finance**

The company bought some land three years ago for $3.8 million in anticipation of using it as a toxic dump site for waste chemicals, but it built a piping system to safely discard the chemicals instead. The land was appraised last week for $4.6 million. In five years, the ...
*Monday, November 25, 2013 at 12:30pm*

**Finance **

Suppose you have been hired as a financial consultant to Defense Electronics, Inc. (DEI), a large, publicly traded firm that is the market share leader in radar detection systems (RDSs). The company is looking at setting up a manufacturing plant overseas to produce a new line ...
*Monday, November 25, 2013 at 12:35am*

**physics **

The masses of blocks A and B are 4.5 kg and 3.7 kg respectively. The blocks are initially at rest and are connected by a massless string passing over a massless, frictionless pulley. The system is released from rest. a. What is the acceleration of the blocks? b. What is the ...
*Sunday, November 24, 2013 at 7:05pm*

**please help me!! physics **

The masses of blocks A and B are 4.5 kg and 3.7 kg respectively. The blocks are initially at rest and are connected by a massless string passing over a massless, frictionless pulley. The system is released from rest. a. What is the acceleration of the blocks? b. What is the ...
*Sunday, November 24, 2013 at 6:34pm*

**water treatment**

A wastewater treatment plant based on activated sludge with biological phosphate and nitrogen removal via pre-denitrification. The influent flow (dwf) is 30,000 m3/day and the influent BOD concentration is 300 mg BOD/l. The suspended solid concentration in the influent is 150 ...
*Sunday, November 24, 2013 at 7:49am*

**Challenge**

Suppose you have been hired as a financial consultant to Defense Electronics, Inc. (DEI), a large, publicly traded firm that is the market share leader in radar detection systems (RDSs). The company is looking at setting up a manufacturing plant overseas to produce a new line...
*Saturday, November 23, 2013 at 11:51pm*

**Finance**

Calculate the project’s initial Time 0 cash flow, taking into account all side effects.? This will be a five-year project. The company bought some land three years ago for $4.2 million in anticipation of using it as a toxic dump site for waste chemicals, but it built a ...
*Saturday, November 23, 2013 at 11:04pm*

**Finance**

Calculate the project’s initial Time 0 cash flow, taking into account all side effects.? This will be a five-year project. The company bought some land three years ago for $4.2 million in anticipation of using it as a toxic dump site for waste chemicals, but it built a ...
*Saturday, November 23, 2013 at 10:56pm*

**Algerbra**

if possible, solve the nonlinear system of equations. x^2+y^2=58 y-x=4
*Saturday, November 23, 2013 at 4:56pm*

**Solar Energy**

With respect to a PV module's I-V and P-V curves, and the module's operating point, consider the following statements: a) When the operating point of the PV module is on the MPP (maximum power point), \(P_{mpp} \lt V_{oc} \times I_{sc} \) b) For a given Irradiance and ...
*Saturday, November 23, 2013 at 4:13pm*

**Accounting**

Hawkeye Electric Company engaged in the following transactions during July. Journalize the preceding transactions on the books of Hawkeye Electric Company using the perpetual system of inventory. July 2 – Purchased inventory for cash, $800 July 5 – Purchased store ...
*Saturday, November 23, 2013 at 3:43pm*

**Algebra**

Make a conjecture about the solution of a system of equations if the result of subtracting one equation from the other is 0 = 0 A. There are no solutions b. there are infinite number of solutions c. Cannot determine any solution d. the solutions are inverses of each other
*Saturday, November 23, 2013 at 3:31pm*

**financial analysis**

Total Current assets Total Current Liabilities Net Working Capital Current Ratio a. Cash is acquired through issuance of additional common stock. _________ _________ _________ _________ b. Merchandise is sold for cash. (Assume a profit.) ___+______ _________ ____+_____ ___+...
*Saturday, November 23, 2013 at 12:28pm*

**algebra 1**

Marissa plans to make and sell 5 framed photographs and 25 greeting cards. Is that a solution to the system of inequalities? If so, is it the solution that will produce the most profit?
*Saturday, November 23, 2013 at 9:45am*

**algebra 1**

Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost $2. Marissa can sell up to 8 framed photographs and 40 greeting cards each ...
*Saturday, November 23, 2013 at 7:57am*

**law**

Opponents of mandatory sentencing point to studies that show criminals are deterred more effectively by increasing the chances of their conviction, rather than increasing the sentence if they are convicted.[13] In a United States Judicial committee hearing, a Utah Judge ...
*Friday, November 22, 2013 at 11:23pm*

**algebra 1**

Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost $2. Marissa can sell up to 8 framed photographs and 40 greeting cards each ...
*Friday, November 22, 2013 at 10:27pm*

**algerbra 2**

Marissa plans to make and sell 5 framed photographs and 25 greeting cards. Is that a solution to the system of inequalities? If so, is it the solution that will produce the most profit?
*Friday, November 22, 2013 at 10:22pm*

**algebra 1**

Material cost equation : 30x + 2y = 200 Profit equation : 100x + 5y = 400 B. Explain your inequalities and explain why x<8 and y<40 are also inequalities for this system
*Friday, November 22, 2013 at 6:11pm*

**algerbra 2**

so how do I explain inequalities and why x<8 and y<40 are also inequalities for this system? Do I add or multiply by 4?
*Friday, November 22, 2013 at 5:58pm*

**algebra 1**

Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost $2. Marissa can sell up to 8 framed photographs and 40 greeting cards each ...
*Friday, November 22, 2013 at 5:53pm*

**algebra 1**

. Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost $2. Marissa can sell up to 8 framed photographs and 40 greeting cards each ...
*Friday, November 22, 2013 at 5:21pm*

**algerbra 2**

. Explain your inequalities and explain why and are also inequalities for this system
*Friday, November 22, 2013 at 4:40pm*

**Algebra**

Use the matrix tool to solve the system of equations. Choose the correct ordered pair. -3x + 5y = 19 5x - 5y = -5
*Friday, November 22, 2013 at 2:41pm*

**Algebra**

What is the solution of the linear-quadratic system of equations? {y = x^2 + 5x - 3 {y - x = 2 So confused about how to do this any help is appreciated.
*Friday, November 22, 2013 at 1:42am*

**Art of Research**

I need to do an interview segment for a "show green", which is a storyboard for a TV show. It will include production notes as well. My topic for this show green is on the business of the National Hockey League, in terms of their revenue, salary cap, free agency ...
*Thursday, November 21, 2013 at 5:29pm*

**Health (Ms. Sue)**

My answer: It is important to have an efficient public health system if an outbreak of a disease occurs to prevent or manage it?
*Thursday, November 21, 2013 at 4:55pm*

**Health (Ms. Sue)**

It states: "It is important to have an efficient and effective public health system to prevent or manage an infectious disease outbreak. Even though great progress has been made in the ability to protect the public's health, the methods and financial resources needed ...
*Thursday, November 21, 2013 at 4:42pm*

**Health (Ms. Sue)**

Explain why it is important to have an efficient public health system if an outbreak of a disease occurs.
*Thursday, November 21, 2013 at 4:31pm*

**Math quick question **

Create a system of linear equations with this situation: Megan considers two different car rental options. One option costs $19 per day plus $0.12 per kilometre . Another option costs $42.50 per day for unlimited kilometres . Thanks :)
*Wednesday, November 20, 2013 at 11:17pm*

**College Algebra**

Solve the System 2x-8y=20 3x-12y=30
*Wednesday, November 20, 2013 at 9:13pm*

**Health (Ms. Sue)**

Describe how vaccinations work to protect the body from illness. A: When a vaccine is injected or swallowed, the immune system responds to the vaccine material by making white blood cells called memory cells. Therefore, when or if the pathogen against which the vaccine was ...
*Wednesday, November 20, 2013 at 8:10pm*

**Physics, Elena Please Help If u can.**

Thanks Mor. It looks like I was putting gravity into the system. They should've shown this system flat on a table, instead of up in the air. Michael: from class the formula is a_B = a_A + alpha x r_AB - omega^2*r_AB + 2*omega x v_Rel +a_Rel (all vector quantities). you ...
*Wednesday, November 20, 2013 at 5:53pm*

**Physics, Elena Please Help If u can.**

Thanks Mor. It looks like I was putting gravity into the system. They should've shown this system flat on a table, instead of up in the air. Michael: from class the formula is a_B = a_A + alpha x r_AB - omega^2*r_AB + 2*omega x v_Rel +a_Rel (all vector quantities). you ...
*Wednesday, November 20, 2013 at 5:53pm*

**world history**

1. Go to http://www.google.com 2. Type in Antarctic Treaty System (or whatever search terms you need). Press Enter. 3. Read different search results until you find what you need. 4. Re-search with different search terms if you don't find all you need.
*Wednesday, November 20, 2013 at 8:31am*

**waste water treatment **

ACTIVATED SLUDGE AND NUTRIENT REMOVAL =========================================== A wastewater treatment plant based on activated sludge with biological phosphate and nitrogen removal via pre-denitrification. The influent flow (dwf) is 30,000 m3/day and the influent BOD...
*Wednesday, November 20, 2013 at 3:10am*

**Physics-Attention ELENA**

A circular plate with a slot in its surface is rotating with angular velocity ω and angular acceleration α with respect to a fixed coordinate system, OXYZ as shown. A ball B moves along the slot in the direction shown with velocity, v, and acceleration, a, both ...
*Wednesday, November 20, 2013 at 12:32am*

**world history**

Which of the following is true of the Antarctic Treaty System? A. It bans commercial mining in Antarctica. B. It's actually the Society for the Geographic Exploration of Antarctica. C. It was established specifically to enforce ecological regulations. D. It provides the de...
*Tuesday, November 19, 2013 at 11:39pm*

**Physics**

calculate the acceleration of this system, assuming that there are no frictional forces between the table and Block A. Block A is sitting on a table connected by a rope to a pulley system and Block B is hanging off the table connected to the rope from the pulley system. Mass ...
*Tuesday, November 19, 2013 at 10:39pm*

**Physics-dynamics**

Redraw the Axy coordinates system on a piece of paper, draw x horizontally and y vertically. Place the ball B on your drawing. x position is easy to find, y is a function of 45deg and L. To find vrel: Look at the drawing in the exercise and draw the same vector v on your ...
*Tuesday, November 19, 2013 at 2:54pm*

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