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April 20, 2014

April 20, 2014

**Recent Homework Questions About Operating Systems**

Post a New Question | Current Questions

**Solar Energy Please Help**

f) Solar thermal system
*Sunday, October 27, 2013 at 4:47am*

**Chemistry**

delta E = q + w 7.02 is negative since the system does work. q is + since the system absorbs heat.
*Saturday, October 26, 2013 at 11:25pm*

**Chemistry**

What is the change in internal energy of a system that does 7.02 kj of work and absorbs 888 j of heat?
*Saturday, October 26, 2013 at 11:04pm*

**chemistry**

An aqueous solution of copper (II) sulfate is a thermodynamic system under study. What typer of system is this if the solution is contained in a beaker on a laboratory table?
*Saturday, October 26, 2013 at 11:04pm*

**Math**

http://www.google.com/search?q=earth+system&rlz=1C1AVSX_enUS414US423&oq=earth+system&aqs=chrome..69i57j0l5.4362j0j8&sourceid=chrome&espv=210&es_sm=122&ie=UTF-8#es_sm=122&espv=210&psj=1&q=10%2C000++-+4%2C564
*Saturday, October 26, 2013 at 3:21pm*

**Solar Energy Please Help**

a) Family Smith has already installed PV in their house. Now, they also want to cover their needs for warm water with solar energy. For this, they consider having a solar thermal water heating system. Considering that the need for warm water is 100L/day, the water has to be ...
*Saturday, October 26, 2013 at 2:51pm*

**science **

why do scientists use the international system of units(SI)? a) because the SI is based on the metric system b) because the tools scientists use only measures in SI units c) so they can communicate their results without confusion d) so all scientist are guaranteed to come up ...
*Saturday, October 26, 2013 at 2:49pm*

**Science**

How is earth like a system?
*Saturday, October 26, 2013 at 11:51am*

**HSM/220**

PLEASE HELP!!!!!!...FOR LACK OF CERTAIN VARIABLE TYPE MATH SKILLS AND A NEED IN ASKING THIS: IS IT IN FACT THAT 1.5 IS THE SAME AS MULTIPLYING BY 0.50 IN FINDING THE ANSWER? IF MY ASSUMPTION RING TRUE, THEN I HAVE NO FEASIBLE REASON FOR CONSISTENTLY COMING UP WITH THE WRONG ...
*Saturday, October 26, 2013 at 4:32am*

**chemistry**

dE = q+w q = 100 watts for 10 minutes converted to joules. work is pdV. p is 1 atm and dV is 14L so work is 14 L*atm. Convert that to joules by 14 L*atm x 101.325 = ?J. Since this is work done by the system make it a negative number so it becomes dE = q + (-)1*14*101.325 = xJ.
*Friday, October 25, 2013 at 11:33pm*

**Science**

How is Earth like a system?
*Friday, October 25, 2013 at 6:10pm*

**Math**

Use elimination to solve the system of equations. -x + 2y = 18 x + 8y = -38
*Friday, October 25, 2013 at 11:48am*

**Mathhh**

Use substitution to solve the system of equations given below. 8x - 4y = 16 2x - y = 4
*Friday, October 25, 2013 at 11:32am*

**Math**

Solve the system of equations. 2x - 4y = 3 -3x + 5y = 1
*Friday, October 25, 2013 at 11:31am*

**Physics**

A 0.490-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 25.0N/m . The block rests on a frictionless surface. A 6.00×10−2-kg wad of putty is thrown horizontally at the block, hitting it with a speed of 2.10m...
*Friday, October 25, 2013 at 2:29am*

**Physics**

a) Family Smith has already installed PV in their house. Now, they also want to cover their needs for warm water with solar energy. For this, they consider having a solar thermal water heating system. Considering that the need for warm water is 100L/day, the water has to be ...
*Thursday, October 24, 2013 at 5:13pm*

**College Anatomy**

Within the nervous system, the (a) are to the ganglia as a tract is to a (b).
*Thursday, October 24, 2013 at 3:35pm*

**Computer Programming using python**

You'll notice that in Problem 2, your monthly payment had to be a multiple of $10. Why did we make it that way? You can try running your code locally so that the payment can be any dollar and cent amount (in other words, the monthly payment is a multiple of $0.01). Does ...
*Thursday, October 24, 2013 at 10:29am*

**English**

Hello, I am french and I have some english homework for tomorrow, Can you correct my English please ? Thank ou During the Victorian era, the middle class growth quickly. Moreover, the social divide was very important ( To illustrate this gap, the underworld was characterized ...
*Thursday, October 24, 2013 at 5:29am*

**World History**

City-States Essay Assignment In what ways were the Indus Valley people an advanced civilization? In what ways did their civilization compare to an advanced modern civilization today? The Indus people were always a step ahead in a lot of their achievements. They were very ...
*Wednesday, October 23, 2013 at 2:22pm*

**history**

Which of the following was true of the Judiciary Act of 1801? A. It packed the Supreme Court with Democratic Republicans. B. It was opposed by the Federalists. C. It expanded the federal court system. D. It reduced the power of the federal courts. I put a but its not right .-.
*Wednesday, October 23, 2013 at 12:52pm*

**Physics Classical Mechanics**

@ss01 hey man could you plz answer this double star system ones answer..plzz!
*Wednesday, October 23, 2013 at 11:56am*

**Physics Classical Mechanics**

Double star system answer - 9.859*10^17 seconds; keep on getting bungee jump wrong; I might be using the wrong equation. setting the equations to: 1/2*k*x^2=m*g*h; k = 2*m*g*h/x^2
*Wednesday, October 23, 2013 at 10:55am*

**science**

Consider a double star system under the influence of the gravitational force between the stars. Star 1 has mass m1 = 1.72 × 1031 kg and Star 2 has mass m2 = 1.60 × 1031 kg. Assume that each star undergoes uniform circular motion about the center of mass of the ...
*Wednesday, October 23, 2013 at 10:44am*

**Physics Classical Mechanics**

i got this one anyone got the moon and double star system????
*Wednesday, October 23, 2013 at 9:07am*

**Physics**

Consider a double star system under the influence of the gravitational force between the stars. Star 1 has mass m1 = 2.42 × 1031 kg and Star 2 has mass m2 = 2.32 × 1031 kg. Assume that each star undergoes uniform circular motion about the center of mass of the ...
*Wednesday, October 23, 2013 at 9:06am*

**Physics **

A particle of mass m moves in a x-y plane. the coordinates of the particle at any instant are given by x=acos(wt) y = bsin(wt). where a,b,w, are constants. determine angular momentum ofthe particle with respect to the origin of the coordinate system.
*Wednesday, October 23, 2013 at 2:28am*

**MathJ.C.**

Solve the system using matrices 4x+2y=2 5x+8y=30
*Tuesday, October 22, 2013 at 8:53pm*

**World History**

Taoism: advocating a simple honest life and noninterference with the course of natural events.it is philosophical system developed by Lao-tzu and Chuang-tzu as-well
*Tuesday, October 22, 2013 at 6:28pm*

**Chemistry**

An 80.0 g sample of a gas was heated from 25 degree C to 225 degree C. During this process, 346 J of work was done by the system and its internal energy increased by 7495 J. What is the specific heat of the gas? J/(g∗C)
*Tuesday, October 22, 2013 at 6:16pm*

**science**

Consider a double star system under the influence of the gravitational force between the stars. Star 1 has mass m1 = 1.72 × 1031 kg and Star 2 has mass m2 = 1.60 × 1031 kg. Assume that each star undergoes uniform circular motion about the center of mass of the ...
*Tuesday, October 22, 2013 at 11:03am*

**Finance**

The U.S. financial system is composed of: (1) policy makers, (2) a monetary system, (3) financial institutions, and (4) financial markets. Indicate which of these components is associated with each of the following roles
*Monday, October 21, 2013 at 7:40pm*

**Computer hardware**

What circumstance would be the only reason for one to toil with processor and system bus frequencies? A. Purchasing a multi core processor B. Purchasing a chip with static ram C. Overclocking a processor D. Purchasing an AMD chipset I think it's c, but I am not sure
*Monday, October 21, 2013 at 7:33pm*

**Physics**

A ball whirls around in a vertical circle at the end of a string. The other end of the string is fixed at the center of the circle. Assume that the total energy of the ball-Earth system remains constant. (a) What is the tension in the string at the bottom? (Use the following ...
*Monday, October 21, 2013 at 6:01pm*

**Physics Classical Mechanics**

Consider a double star system under the influence of the gravitational force between the stars. Star 1 has mass m1 = 2.32 × 10^31 kg and Star 2 has mass m2 = 1.76 × 10^31 kg. Assume that each star undergoes uniform circular motion about the center of mass of the ...
*Monday, October 21, 2013 at 10:07am*

**physics**

a particle of mass m moves in a x-y plane. The coordinates of the particle at any instant are given by x = acos(wt) and y = bsin(wt). where a,b,w, are constant. Determine the angular momentum of the particle with respect to the origin of the coordinate system.
*Monday, October 21, 2013 at 5:45am*

**Stats**

A car rental agency currently has 43 cars available, 27 of which have a GPS navigation system. Two cars are selected at random from these 43 cars. Find the probability that both of these cars have GPS navigation systems. Round to four decimal places.
*Monday, October 21, 2013 at 12:19am*

**math 9**

Identify the solution(s) of the system of equations, if any. 3x-2y=6 5x=5-25y A) (28/13, 3/13) B) (-3/17, 32/17) C) (32/17, -3/17) D) (32/9, 7/3) I think the answer is D but i did my check and still comes out incorrect
*Sunday, October 20, 2013 at 10:22pm*

**College Physics**

A 27.7-cm-by-27.7-cm checkerboard has a mass of 103.1 g. There are four 27.7-g checkers located on the checkerboard, as shown in the figure. Relative to the origin located at the bottom left corner of the checkerboard, where is the center of mass of the checkerboard-checkers ...
*Sunday, October 20, 2013 at 9:51pm*

**math 8**

Identify the solution(s) of the system of equations, if any. 5x + 2y = 2 4x - 2y = 8 A) (9/10, -5/4 ) B) (–6, 16) C) (10/9, -16/9 ) D) (10, –24)
*Sunday, October 20, 2013 at 9:41pm*

**math 5**

Identify the solution(s) of the system of equations, if any. 3x+2y=4 5x-4y=3 A) (1, 0.5) B) (0.5,1) C) (5, 5.5) D) 5/11, -2/11)
*Sunday, October 20, 2013 at 9:39pm*

**Math 6**

Identify the solution(s) of the system of equations, if any. -3x-4y=2 8y=-6x-4 A) infinitely many solutions B) (-16/9, 5/6) C) (-2/3, 0) D) no solution
*Sunday, October 20, 2013 at 9:36pm*

**math 4**

Identify the solution(s) of the system of equations, if any. 6x + 2y = 0 y = 1 - 5x A) (–1.5, –0.5) B) (–1.5, 0.5) C) (–0.5, –1.5) D) (0.5, –1.5)
*Sunday, October 20, 2013 at 9:33pm*

**Math 3**

Identify the solution(s) of the system of equations, if any. x + 2y = 6 3x - 6y = 0 A) (3, 2/3) B) (3,3/2 ) C) (2/3, 3) D) (3/2, 3)
*Sunday, October 20, 2013 at 9:32pm*

**Math 1**

Consider the following system of equations. y = 4x - 4 y - 4x = 3 What can you conclude about the system of equations? A) The system of equations is inconsistent. B) The system of equations is dependent. C) The system of equations is independent. D) none of these
*Sunday, October 20, 2013 at 9:31pm*

**math**

Identify the solution(s) of the system of equations, if any. -4x - 4y = 4 4y = -4x - 4 A) no solution B) (0, -1) C) (-1, 0) D) infinitely many solutions
*Sunday, October 20, 2013 at 9:26pm*

**math**

Identify the solution(s) of the system of equations, if any. -4x - 4y = 4 4y = -4x - 4 A) no solution B) (0, -1) C) (-1, 0) D) infinitely many solutions
*Sunday, October 20, 2013 at 9:25pm*

**chem thermo**

consider a system consisting of 2.0mol co2(g) initially at 25c and 10atm and confined to a cylinder of cross section 10.0cm2. it is allowed to expand adiabatically against an external pressure of 1.0atm until the piston has moved outwards through a 20cm. assume that co2 is a ...
*Sunday, October 20, 2013 at 12:26pm*

**science**

Now assume that we are working in units such that ℏ=1. If the state of the system at time t=0 is ψ(0)=|0⟩, what is the state of the system at time t=π2? What about at t=π? t=π2:
*Sunday, October 20, 2013 at 11:06am*

**Quantum Physics**

I discourage cheating, I haven't even given the final exam, I'm just auditing the course. (just to learn) I'm just proving that your ideology and methodology is wrong. You could really mess up the EdX system if you decided to do it your way. You can't see what ...
*Saturday, October 19, 2013 at 4:39pm*

**statistics**

Community Health center, a new patient clinic in your town serving only underinsured and uninsured patients, has asked you to help its health information management department get started. calculate the number of new shelving units needed for a medical record filing system ...
*Saturday, October 19, 2013 at 3:41pm*

**Water - Math Question**

This question is related to water footprint calculation. I have no idea how to go about this, if anyone could point me in the right direction, I'd be forever grateful! Background info: The water footprint of the resident of a Blue Sea riparian country (92 million residents...
*Saturday, October 19, 2013 at 3:10pm*

**physics**

A cardiologist uses an ultrasound scanner with an operating frequency of 3.5 MHz that can detect Doppler frequency shifts as small as 0.1 kHz. What is the smallest flow velocity detectable with this device? Two frequencies are given so I know I have to convert the units but ...
*Saturday, October 19, 2013 at 9:31am*

**chem**

A 30.5 g sample of an alloy at 92.4°C is placed into 52.9 g water at 24.1°C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K. If the final temperature of the system is 31.1°C, what is the specific heat capacity of the ...
*Friday, October 18, 2013 at 11:03pm*

**biology 2 (?)**

What system did you pick?
*Friday, October 18, 2013 at 8:04pm*

**U.S. History**

Keep track of which website you get each piece of information from. You can create a kind of coding system, making sure you number the websites you use for each person you're researching. Here's an idea: #1 = http://www.biography.com/people/john-d-rockefeller-...
*Friday, October 18, 2013 at 3:43pm*

**math**

You and your friend are saving for college. You have $50 and are added $10 each week to your savings. Your friend has $20 and he is adding $20 each week to his savings. a. what system of equations would be a good model for this situation? Let x be number of weeks and y be the ...
*Friday, October 18, 2013 at 1:14pm*

**Telecommunications**

1. System A consists of a single ring with 100 stations, one per repeater. System B consists of four 25 stations rings linked by a bridge. If the probability of a link failure is , a repeater failure is , and a bridge failure is , derive an expression for parts (a) to (d). a) ...
*Friday, October 18, 2013 at 10:51am*

**chem**

A 30.5 g sample of an alloy at 90.7�C is placed into 48.8 g water at 22.3�C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K. If the final temperature of the system is 31.1�C, what is the specific heat capacity...
*Thursday, October 17, 2013 at 11:55am*

**math**

the system of linear equations below has a unique solution for all but one value of a : 5 x - 5 y = 25 48 x + a y = 240 What is this exceptional value for a ?
*Thursday, October 17, 2013 at 11:12am*

**Science **

What part of the circulatory system moves the blood through your body?
*Wednesday, October 16, 2013 at 7:17pm*

**Accounting**

The following unadjusted trial balance is prepared at fiscal year-end for Nelson Company. NELSON COMPANY Unadjusted Trial Balance January 31, 2013 Debit Credit Cash $ 26,150 Merchandise inventory 14,500 Store supplies 5,000 Prepaid insurance 2,100 Store equipment 42,800 ...
*Wednesday, October 16, 2013 at 5:51pm*

**algebra 2**

Solve system of equations.Describe each step if your solution. W+X+Y+Z=2 2W-X+2y-Z=1 -W+2x-y+2z=-2 3w+x+y-Z=5 Please help I only know how to do this with 3 equations.
*Wednesday, October 16, 2013 at 4:15pm*

**Business(please help quick!)**

Please don't provide any links. We are doing a project where we pick a sports team and we must calculate the revenue and salaries of the players. Then we are asked to explain how a sports team can possibly lose money. Now, I have all of that but I am stuck on this last ...
*Wednesday, October 16, 2013 at 12:20am*

**Chemistry**

If we ignore the small fraction of U-234, natural uranium has a concentration of 99.28 atom% of U-238 and 0.72% U-235. Their half-lives are, respectively, 4.68*109 and 7.038*108 years. (a) In the future, will the U-238 percentage be higher or lower? (b) In Oklo, Gabon, Africa...
*Tuesday, October 15, 2013 at 9:02pm*

**Algebra 2**

Solve the system. Then classify the system as consistent and independent, consistent and dependent, or inconsistent. 24.) 4x+5y=3 6x+9y=9 26.) 1/2x -3y=10 1/4x +2y=-2
*Tuesday, October 15, 2013 at 6:01pm*

**Algebra 2**

Graph the linear system and estimate the solution. Then check the solution algebraically. 7x+y=-17 3x-10y=24 I have to have 4 labeled points and I'm not getting the fraction thing. Any help would be great!
*Tuesday, October 15, 2013 at 5:58pm*

**Physics**

Consider an ideal spring that has an unstretched length l0 = 3.3 m. Assume the spring has a constant k = 23 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.6 m from...
*Tuesday, October 15, 2013 at 1:40pm*

**maths**

Write the system as a matrix equation and solve using inverses. x1 + 2x2 - x3 = -3 -2x1 - x2 + 3x3 = 0 -4x1 + 4x2 - x3 = -12 A. x1 = 2, x2 = -3, x3 = 1 B. x1 = 1, x2 = -2, x3 = 1 C. x1 = 1, x2 = -2, x3 = 0 D. x1 = 1, x2 = -3, x3 = 1
*Tuesday, October 15, 2013 at 11:54am*

**maths**

Solve the system. 3x2 - 2y2 = -5 x2 + y2 = 25 A. (3, 4), (3, -4), (-3, 4), (-3, -4) B. (4, 4), (5, 4), (3, -4), (1, –4) C. (-3, 4), (1, 4), (-3, -4), (2, -4) D. (1, 4), (2, –4), (–4, 3), (–3, –3) Find the coordinates of the corner points using the ...
*Tuesday, October 15, 2013 at 11:25am*

**Computer Architecture**

A Silicon Valley company is looking to increase the performance of its workstations. Analysis of the applications that its customers are using has shown that the average response time breaks down into three main categories: CPU time, memory system time, and host/client ...
*Tuesday, October 15, 2013 at 10:30am*

**Chm 2**

The way you do these is to convert those Ka values to pKa = -log Ka. Then the best acid/conjugate base is the acid with a pKa = +/- 1 of the pH you want for the buffer. For example, pKa for acetic acid is 4.74 and that would be the best acid (conjugate base is acetate ion) to ...
*Tuesday, October 15, 2013 at 12:39am*

**Chm 2**

The question asks, Consider the following weak acids and their Ka values Acetic acid Ka = 1.8x10^-5 Phosphoric acid Ka = 7.5x10^-3 Hypochlorous acid Ka = 3.5x10^-8 What weak acid-conjugate base buffer system from the acids listed is the best chouce to prepare the following ...
*Tuesday, October 15, 2013 at 12:29am*

**Quantum Physics**

7A: momentum values 2, 3, 4 State for 3 is (0 1 0) Got the seemingly correct states for 2 (1 0 -i) and for 4 (1 0 i), but the system does not accept them.
*Monday, October 14, 2013 at 10:18pm*

**Quantum Physics**

7A: momentum values 2, 3, 4 State for 3 is (0 1 0) Got the seemingly correct values for 2 (1 0 -i) and for 4 (1 0 i), but the system does not accept them.
*Monday, October 14, 2013 at 10:17pm*

**Geography (Ms. Sue)**

" Many factors appear to be operating simultaneously, including economic and social instability, high rates of tobacco and alcohol consumption, poor nutrition, depression, and deterioration of the health care system. Problems in data quality and reporting appear unable to...
*Monday, October 14, 2013 at 4:55pm*

**PHYSICS(PLS HELP)**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 3:17pm*

**PHYSICS(HELP)**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 2:49pm*

**physics**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 1:55pm*

**physics**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 1:12pm*

**physics **

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 12:46pm*

**physics **

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 12:46pm*

**physics**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 11:48am*

**Physisc(help)**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 10:21am*

**biology 2**

The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. Discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. If methods were developed to improve the efficiency and ...
*Monday, October 14, 2013 at 8:42am*

**physics**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially...
*Monday, October 14, 2013 at 4:03am*

**Science**

The system of three pulleys is in equilibrium, the pulleys have masses of 9kg ,5kg,8kg respectively. The pulleys are frictionless & massless.find the force T ?
*Monday, October 14, 2013 at 2:44am*

**Science**

Three masses sitting on three pulleys,the masses are 5kg,9kg,8kg.the system is in equilibrium,the pulleys are frictionless & massless
*Monday, October 14, 2013 at 2:28am*

**Physics pls anyone can help me? its urgent**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F = -c_1*r*v , where c_1 is a constant. At time t = 0, a small ball of mass is projected into a liquid so that it initially has a horizontal ...
*Sunday, October 13, 2013 at 8:37pm*

**Physics Urgent please help**

At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F = -c_1*r*v , where c_1 is a constant. At time t = 0, a small ball of mass is projected into a liquid so that it initially has a horizontal ...
*Sunday, October 13, 2013 at 5:28pm*

**algebra**

identify the solutions of the system of equations x=1 and y=1
*Sunday, October 13, 2013 at 12:03pm*

**physics**

Consider the Hamiltonian H=Z⊗3 acting on 3 qubits. What is the ground energy of the system? (I.e. the lowest eigenvalue of H?) What is the dimension of the ground energy subspace? (I.e. multiplicity of that eigenvalue?)
*Sunday, October 13, 2013 at 11:51am*

**Psychology/ Ms Sue**

Are my answers correct Ms Sue? 1. One of the characteristic features of school-age children is that they are more likely than younger children to try to conform to peer standards in such matters as clothing and language? True 2. School age children have a more elaborate ...
*Saturday, October 12, 2013 at 4:41pm*

**Physics Urgent please help**

Consider an ideal spring that has an unstretched length l_0 = 3.5 m. Assume the spring has a constant k = 36 N/m. Suppose the spring is attached to a mass m = 8 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x_0 = 1.9 m ...
*Saturday, October 12, 2013 at 4:11am*

**Geography (Ms. Sue)**

5). How has Russia moved toward a capitalist system? A: Russia has moved toward a capitalist system as it ended the tight control that the central government held over economic activity. For example, Russia remove the price controls that had been set by the Soviet government ...
*Friday, October 11, 2013 at 9:56pm*

**Geography (Ms. Sue)**

1). Some Russians have objected to the creation of new federal districts. Why might there be disagreement over the districts? A: There might be disagreement over the districts because the President of Russia hopes that the heads of the new federal districts will force regional...
*Friday, October 11, 2013 at 9:39pm*

**AP Chemistry**

w = -pdV Work done by the system is - pdV is 0.01*(9.6-6.6)
*Friday, October 11, 2013 at 7:26pm*

**AP Chemistry**

How much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 9.6 liters against a constant external pressure of 0.0100 atm answer in units of joules
*Friday, October 11, 2013 at 6:23pm*

**Physics**

ω₀=sqrt(k/m) = sqrt(20/6) =1.83 rad/s T=2π/ ω =2π/1.83 =3.43 s. (1) x=Acos (ω₀t +α) At t=0 -x₀=x v₀=v(x) v(x)= dx/dt = - ω₀Asin(ω₀t +α) … (1) If t=0 -x₀=Acos (ω₀t +α) =...
*Friday, October 11, 2013 at 2:32pm*

**physics**

ω₀=sqrt(k/m) = sqrt(20/6) =1.83 rad/s T=2π/ ω =2π/1.83 =3.43 s. (1) x=Acos (ω₀t +α) At t=0 -x₀=x v₀=v(x) v(x)= dx/dt = - ω₀Asin(ω₀t +α) … (1) If t=0 -x₀=Acos (ω₀t +α) =...
*Friday, October 11, 2013 at 2:32pm*

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