Monday

April 21, 2014

April 21, 2014

**Recent Homework Questions About Operating Systems**

Post a New Question | Current Questions

**physisc**

why is nitrogen builds up into your system
*Wednesday, August 14, 2013 at 6:48am*

**physics (please help elena)**

Three planets interact with one another through their mutual gravitational forces only; they are isolated in free space and do not interact with any other bodies. They orbit around an axis going through the center-of-mass of the system and perpendicular to the triangle formed ...
*Monday, August 12, 2013 at 2:53pm*

**math**

Let x = number of Ryan's stickers Let y = number of Tony's stickers From the first statement, (2/3)x = (3/4)y From the second statement, x - 48 = y + 48 Then we solve for x and y. There are many ways to solve this system, but let's do substitution. To do ...
*Monday, August 12, 2013 at 7:09am*

**MATH.**

You'll need to setup algebraic equations and then solve the system for the "other number". Do you know how to get started?
*Sunday, August 11, 2013 at 6:18pm*

**accounting**

Working capital b. Current ratio c. Acid-test ratio d. Cash ratio e. Days' sales in receivables f. Accounts receivable turnover in days g. Days' sales in inventory h. Inventory turnover in days i. Operating cycle
*Sunday, August 11, 2013 at 2:14am*

**Math**

Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent)
*Friday, August 9, 2013 at 5:47pm*

**To Devron--chemistry**

I have learned through experience that students in the UK use spilt while US uses spilled. Same thing for spelling colour or odour or sulphur etc. Canadian students spell the same as the British. I don't know if Sarah is Canadian but UK for sure. The aussies are UK also. ...
*Friday, August 9, 2013 at 2:38pm*

**p chem**

I assume that is 131.8 and 100.0 J/K*mol. dSmix = -R(ni*ln xi where ni and xi stand for mols and mol faction of the components. dSmix = -8.314[(1*0.5*ln 0.5) + (1*0.5*ln 0.5)] = +5.763 J/K q CCl4 = mass x Cp x (Tf-Ti) q = 0.5 mol x 131.8 J/K*mol x 2 = 131.8 J dS = q/299 = 0....
*Thursday, August 8, 2013 at 6:56pm*

**p chem**

1/2 mole CCl4 @ 25 C was mixed with 1/2 mole CH2Cl2 @ 25C. The final T was 27 C. Calculate delta S mixing, delta S for CCl4 on heating, delta S for CH2Cl2 on heating, and delta S system. Assume 131.8 J/K for Cp for CCl4 and 100.0 J/K for Cp for CH2Cl2.
*Thursday, August 8, 2013 at 6:12pm*

**Finance**

What type of cost measurements best fit in healthcare and which do not? How do cost measurement techniques vary with regard to the operating budget, capital budget, and variance analysis?
*Thursday, August 8, 2013 at 7:28am*

**Math**

I would like to know if I got this problem correct. The perimeter of a rectangle is 42ft. the length is 7ft. longer than the width find the dimensions. Write a system linear equation an solve the resulting system let x be the length and y be the width. 2x+2y=42 y+x=21 y+(y+7)=...
*Monday, August 5, 2013 at 9:38pm*

**Physiology **

What are the different nuances of meaning associated with the expressions brain damage and central nervous system impairment?
*Monday, August 5, 2013 at 9:30pm*

**Math**

The perimeter of a rectangle is 42ft. The length is 7ft. longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let X be the length, and Y be the width.
*Monday, August 5, 2013 at 8:26pm*

**Math**

The perimeter of a rectangle is 36ft. the length is 10ft. longer than the width find the dimensions. Write a system linear equation an solve the resulting system let x be the length and y be the width.
*Monday, August 5, 2013 at 6:42pm*

**Math**

You need to solve this system of equations: S = J - 4 (J + 4) = S * 2 Do you have any thoughts on how to do this?
*Monday, August 5, 2013 at 4:22pm*

**math30**

A security code used to consist of two odd digits, followed by four even digits. To allow more codes to be generated, a new system uses two even digits, followed by any three digits. If repeated digits are allowed, the increase in the number of possible codes is____ Answer: ...
*Monday, August 5, 2013 at 2:00pm*

**Health Care**

I cannot figure out the GAAP and the relevance of each GAAP that is being used to create the financial plan for Patton-Fuller Hospital. I did complete the following budget projections necessary to help answer the question Patton-Fuller Community Hospital Statement of Revenue ...
*Saturday, August 3, 2013 at 9:12am*

**American history**

The overlap of state and national functions resembles the interweaving of flavors in the cake. state and national functions are very distinct. it is clear where state authority ends and national authority begins. federalism is really a mushy system.
*Friday, August 2, 2013 at 7:40pm*

**POL 201**

The federal system can be thought of as a marble cake because
*Friday, August 2, 2013 at 7:26pm*

**American history**

The federal system can be thought of as a marble cake because
*Friday, August 2, 2013 at 7:12pm*

**Physics**

2 objects are connected on an inclined table. The objects have masses 8.0kg, 4.0kg, and 2.0kg, and the pulleys are frictionless. (The one that is 8.0 is suspended from a pulley off the left side of the table, 4.0kg is on the table, and 2.0kg is suspended from the pulley of the...
*Friday, August 2, 2013 at 1:32pm*

**Chem**

Ka1 = 4.5E-7 and Ka2 = 4.7E-11 for the carbonate system. Ksp is 5.0E-9 and Kw =1.0E-14. A town’s groundwater has [Ca2+] = 37 mg/L, alkalinity of 1.36E-3eq/L and pH of 8. This is to be mixed with surface water with [Ca2+] = 4mg/L, alkalinity of 8.0E-4 eq/L and pH of 9.5. ...
*Friday, August 2, 2013 at 8:14am*

**Life orientation **

What are causes of social issue.what are five factors of social issue.the impact of the contemporary of social issue. How the contemporary social issue impact negative on local and global communities list five.give a detail description of your plan and activities.when,where ...
*Thursday, August 1, 2013 at 1:34pm*

**Writing**

Please grade this and make corrections. ACT writing prompt: The Children's Internet Protection ACT (CIPA) requires all school libraries receiving certain federal funds to install and use blocking software to prevent students from viewing material considered "harmful ...
*Wednesday, July 31, 2013 at 11:31pm*

**Chem**

Ka1 = 4.5E-7 and Ka2 = 4.7E-11 for the carbonate system. Ksp is 5.0E-9 and Kw =1.0E-14. A town’s groundwater has [Ca2+] = 37 mg/L, alkalinity of 1.36E-3eq/L and pH of 8. This is to be mixed with surface water with [Ca2+] = 4mg/L, alkalinity of 8.0E-4 eq/L and pH of 9.5. ...
*Wednesday, July 31, 2013 at 9:20pm*

**social studies **

Is this answer right? my answer has ( ) around it The first fully developed American factory system emerged in the _______ industry. A. iron B. distilling C. sugarcane (D). textile
*Tuesday, July 30, 2013 at 6:23pm*

**Physics**

Use the PV diagram of a system. The units for P and V are atmospheric pressure atm and liter L. Process A to B and B to C are straight lines on it. How much is the work done by the system from A to C in J? Given these coordinates:(volume on the x, pressure on the y) A: (1 Li, ...
*Tuesday, July 30, 2013 at 3:52pm*

**statistics**

In a poll of 700 selected people in the USA who are 50 years or older, 20% said they would prefer a complete overhauling of the social security system. Estimate the population proportion of the USA of 50 years or older who would prefer a complete overhauling of the social ...
*Tuesday, July 30, 2013 at 1:52pm*

**Discrete Mathematics**

15. The augmented matrix A represents a system of three real-valued equations in three unknowns. Which of the answer choices would result from the usual first step of applying Gauss-Jordan elimination? A = (1 4 2 3) A = (2 9 13 18) A = (3 10 8 15)
*Tuesday, July 30, 2013 at 1:18pm*

**Discrete Mathematics**

The augmented matrix A represents a system of three real-valued equations in three unknowns. Which of the answer choices would result from the usual first step of applying Gauss-Jordan elimination?
*Tuesday, July 30, 2013 at 4:57am*

**Chemistry- Please Help!!**

Ca(IO3)2 ==> Ca^2+ + 2IO3^- The easy way to remember what happens is to remember Le Chatelier's principle. It says that a system is equilibrium will try to undo what we do to it. Therefore, if we increase Ca^2+ (whether starting or not) the reaction will try to remove ...
*Monday, July 29, 2013 at 12:06am*

**Chemistry- Please Help!!**

Ca(IO3)2 (s) <=> Ca{2+} (aq) + 2 IO3{-} (aq) LeChatelier's principle (general form): Any change in status-quo prompts an opposing reaction in the responding system. So increasing the starting concentration of calcium cation will oppose its production. That is to ...
*Monday, July 29, 2013 at 12:04am*

**POL 201 American National Government**

1) Presidents often seek to control the federal bureaucracy by doing all of the following except: a) filling the top echelon of executive organizations with political appointees who share their values. b) assigning members of the White House staff responsibility for monitoring...
*Sunday, July 28, 2013 at 8:42pm*

**Accounting**

The Clydesdale Company has sales of $4,500,000. It also has invested assets of $2,000,000 and operating expenses of $3,600,000. The company has established a minimum rate of return of 7%. What is Clydesdale Company's profit margin? A.20% B.80% C.44.4% D.18%
*Sunday, July 28, 2013 at 6:48pm*

**chemistry**

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 3.7m/s and then collides straight-on ...
*Saturday, July 27, 2013 at 12:33am*

**General Physics 1**

A simple Atwood's machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 4.8 m/s at the end of 5.5 s. At that time, the kinetic energy of the system is 33 J and each mass has moved a distance of 13.2 m. 1. Find the value...
*Friday, July 26, 2013 at 1:03pm*

**Psychology**

One of the interesting aspects of family therapy is the "system" or roles which are assumed by family members. A good example would be _______________.
A. the father sometimes comes home late
B. the mother has difficulty making ...
*Friday, July 26, 2013 at 12:22pm*

**psychology**

Nelda is fearful of public places and has managed to stay "at home" for the last three years. She and her therapist have developed a strategy. During the first week, she will go to the front door and open it and look outside. If she can remain calm, the goal for the ...
*Thursday, July 25, 2013 at 6:44pm*

**Math**

Use the elimination method to solve the system of equations 5u+2v=15 3u+v=-7
*Thursday, July 25, 2013 at 1:37pm*

**Chemistry re-post**

Okay guys, this problem is really bugging me. I initially saw it and declined to try and solve it. However, after Nancy reposted the question, I thought that I would see if I could take a stab at it. I did back calculations and obtained 0.55 moles, but I could not figure out ...
*Thursday, July 25, 2013 at 1:37am*

**College Algebra**

Solve system by method of elimination 0.07x + 0.02y =-0.07 0.08x - 0.06y = 0.07
*Wednesday, July 24, 2013 at 11:18pm*

**math**

solve my system of equation with full steps 3x+4y=29 2x–5y=-19
*Wednesday, July 24, 2013 at 11:03pm*

**Math**

solve the elimination method 8a+2b=2 -8a+b=13 determined the solution of the system
*Wednesday, July 24, 2013 at 3:47pm*

**Chemistry**

A container is filled with CO2(g) and heated to 1000K. The gas pressure at this temperature is 0.50 atm. Graphite (C) is then added to the container and some of the CO2 is converted to CO according to the reaction below. The final equilibrium total gas pressure in the flask is...
*Wednesday, July 24, 2013 at 9:01am*

**socials 11**

explain what increased privatization of the healthcare system would entail, and list the pros & cons of such a system.
*Tuesday, July 23, 2013 at 8:50pm*

**Grammatical Errors**

Please check to see if I have made any grammatical errors or if my sentence structure is off on the paper below: Running Head: MARKETING MIX PROJECT Marketing Mix Project Natashia Johnson Keiser University MARKETING MIX PROJECT Marketing Mix Project I chose the product Banana ...
*Tuesday, July 23, 2013 at 8:31am*

**Marketing**

Please check my grammer, sentence structure and how the references are places. Running Head: MARKETING MIX PROJECT Marketing Mix Project Natashia Johnson Keiser University MARKETING MIX PROJECT Marketing Mix Project I chose the product Banana Colada Fuze because it regulates ...
*Monday, July 22, 2013 at 11:24pm*

**socials 11 (health care in canada)**

explain what increased privatization of the healthcare would entail, and then list the pros and cons of such a system
*Monday, July 22, 2013 at 12:35pm*

**Dynamics**

A pelt on wheel attains its operating speed of 800rev/min within 2 s after it is turned on. determine the constant angular acceleration of the pelton wheel. also find the total number of revolution the wheel makes before it attains its operating speed.
*Monday, July 22, 2013 at 9:49am*

**algebra**

What an odd mixture of units, decimal places in the imperial system ? anyway .... difference in weight = 7 lb 8 ounces - 9.9 ounces = 120 ounces - 9.9 ounces = 110.1 ounces = 6 lb 14.1 ounces
*Monday, July 22, 2013 at 8:24am*

**English (Ms.Sue please answer) I did some work own**

Ok so Im thinking I will use the theme of heroism (which is the human condition) My arguments would be character, social position and ancestry This is a book and movie comparative essay... I have to do a comparative essay on a book and a film (I chose The Hobbit) .This is a ...
*Sunday, July 21, 2013 at 8:09pm*

**Math**

Computers actually use binary number systems, since a switch can either be on or off. However, contents of computer memory is more concisely represented by octal and hexadecimal representations because 1. they are easy to convert to and from binary system 2. they are condensed...
*Sunday, July 21, 2013 at 10:23am*

**geometry**

I am sorry about the incorrect designations. However, the same process can be used to solve for CP=3, although the result would be different. It seems to me that Steve's method is simpler, so use his method. Using Newton's method to solve for a non-linear equation f(x...
*Sunday, July 21, 2013 at 8:54am*

**Math**

Is octaland hexadecimal numbering are the number system that is used by computers?
*Sunday, July 21, 2013 at 6:20am*

**American History**

True or False Questions 1. The Kansas-Nebraska Act dealt a serious blow to sectional harmony by simply strengthening the Missouri Compromise. 2. Planters or merchants took advantage of the sharecropping system by forcing blacks to use credit to buy good and overcharging for ...
*Saturday, July 20, 2013 at 11:59pm*

**geometry**

First draw the square ABCD and indicate a point P inside the square near the side AB about 1/3 from A to B. Label the lengths AP=1, PB=2, PD=3, and each side of the square s. Join BD and mark the length (√2)s. Label ∠APB as α, ∠DPA as β. Consider each ...
*Saturday, July 20, 2013 at 2:46pm*

**MAT LAB**

For 9_3, the question is not clear because we do not see the accompanying figure. However, on examining the data, it seems probable that the two "walls" (meaning no strain/movement along that direction) are in the y-direction, which means that εy=0. From the ...
*Saturday, July 20, 2013 at 1:37pm*

**quantitative methods for business**

A manager of an inventory system believes that inventory models are important decision-making aids. Even though often using an EOQ policy, the manager never considered a backorder model because of the assumption that back orderes were “bad” and should be a avoided. ...
*Friday, July 19, 2013 at 7:14pm*

**physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Friday, July 19, 2013 at 8:09am*

**Solution Set**

The Y-coordinate of the solution of the system {x+y=3 {-3x+2y=-19 the answer is -2 how? I've done everything to try to solve!
*Thursday, July 18, 2013 at 9:04pm*

**Sociology**

In Chapter 2 of the textbook, the author describes meanings for the concept of socio-economic class and analyzes how perceptions of justice may be influenced by class distinctions in American society (see Section 2.4). He also references the related views of two provocative ...
*Thursday, July 18, 2013 at 6:25pm*

**alg2 check?**

Graph the system of inequalities then substitute the (x,y)order pair into both inequalities. y>3x+1 y<-2/3x+4 (second one has a line under the arrow) I don't get what they are asking for? if they want me to solve it how am I suppose to set it up?
*Thursday, July 18, 2013 at 1:49pm*

**SCIENCE,PHYSICS**

A thin ring with resistance R=10 Ω and self inductance L=0.2 H rotates with constant angular speed ω=100 rad/s in an external uniform magnetic field perpendicular to the rotation axis. As a result, the magnetic flux created by the external field varies with time as...
*Thursday, July 18, 2013 at 10:26am*

**Psychology**

Is this a source that you would consider a scholsrly source. Kliff, S. 2012. Seven facts about America’s mental health-care system. The Washington Post.
*Thursday, July 18, 2013 at 8:04am*

**physics**

Consider a beam as shown in the figure that is 2 m long and supported by a rope. It is pressed against the wall. There is no friction between the wall and the beam. If the beam has a mass of 2 kg and a sign with a mass of 10 kg is hung off of the end of the beam, can the ...
*Thursday, July 18, 2013 at 12:49am*

**Math**

At&t bought a new computer system. The company borrowed. $46,100 at 6 1/3% for 155 days. Find the interest owed?
*Wednesday, July 17, 2013 at 1:42pm*

**physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Wednesday, July 17, 2013 at 1:29pm*

**physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Wednesday, July 17, 2013 at 9:32am*

**physics**

An automatic dryer spins wet clothes at an angular speed of 4.4 rad/s. Starting from rest, the dryer reaches its operating speed with an average angular acceleration of 4.2 rad/s2. How long does it take the dryer to come up to speed?
*Tuesday, July 16, 2013 at 2:03pm*

**physics**

A Ferris wheel rotates at an angular velocity of 0.28 rad/s. Starting from rest, it reaches its operating speed with an average angular acceleration of 0.021 rad/s2. How long does it take the wheel to come up to operating speed?
*Tuesday, July 16, 2013 at 1:52pm*

**physics**

What mass would you hang on the right side of the system in the figure to balance it -- that is, to make the clockwise and counterclockwise torques equal? (Let x1 = 30 cm and x2 = 12 cm.)
*Tuesday, July 16, 2013 at 12:36pm*

**Physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Tuesday, July 16, 2013 at 12:35pm*

**CURRENT PROCD TERMN CODING**

wHAT IS THE CODING SYSTEM PHYSICIANS USE TO FILE THEIR CLAIMS
*Monday, July 15, 2013 at 10:35pm*

**IT/205**

Read “The U.S. Census Bureau Field Data Collection Project: Don’t Count On It” beginning on p. 413 of Essentials of Management Information Systems. Answer the following questions in 200 to 300 words: Dose this mean each question 200 to 300 word or dose it mean ...
*Monday, July 15, 2013 at 10:08pm*

**American history**

http://latinamericanhistory.about.com/od/theconquestofperu/p/Spain-S-American-Colonies-And-The-Encomienda-System.htm
*Monday, July 15, 2013 at 5:40pm*

**american history**

Under the _______ system, Spanish conquistadors were rewarded with local villages and control over the local labor force
*Monday, July 15, 2013 at 5:29pm*

**Calculus**

The idea is to find the family of lines perpendicular to L:7x+5y-2=0. Out of that, we find the particular line L1 passing through P(-6,-2). The intersection of L and L1 gives the required point (closest to P). Family of lines perpendicular to L passing through P0(x0,y0): L : ...
*Monday, July 15, 2013 at 9:16am*

**algebra**

A store sold 29 sweatshirts. White ones cost $ 9.95 and yellow ones cost $ 11.50 If $ 305.05 worth of sweatshirts were sold, how many of each were sold. Let x=the number of white sweatshirts Let y= the number of yellow sweat shirts Complete the system of equations. x+y= $ x...
*Monday, July 15, 2013 at 8:09am*

**algebra**

A non toxic floor wax can be made from lemon juice and food grade linseed oil. the amount of oil should be twice the amount of lemon juice. how much of each ingredient is needed to make 36 ounces of floor wax. let x represent the number of ounces of lemon juice and y ...
*Monday, July 15, 2013 at 7:39am*

**algebra**

Solve the system using elimination X+3y=5 4x+4y=4 I tried to work this problem and this is what I came up with. x+3y=5 x+4y=20 7y=15 y=7/15 and x= (5+y)/4 (5+7/15)/2 2/15 x=2/15 x=2/15, y=7/15 I would like for someone to check to see if it is correct.
*Monday, July 15, 2013 at 2:33am*

**Java programming- simulation of rolling dice**

This is what i have so far. I'm supposed to simulate the 4 dice tossed 1 million times . (so a total of 4 million) I'm trying to get the first die(If I can figure out the first one then I can figure out the other 3. So the trouble I am having is that I cant get the ...
*Sunday, July 14, 2013 at 5:59pm*

**Physics**

Two 1.5 kg balls move away from each other, one traveling 6 m/s to the right, the other 2 m/s to the left. What is the magnitude of the total momentum of the system? Answer in units of kg · m/s
*Sunday, July 14, 2013 at 5:54pm*

**algebra**

Solve the given system by the substitution method. 2x+y=6, 5x-2y=6
*Sunday, July 14, 2013 at 4:09pm*

**General Chemistry**

Your answers are correct but you don't understand why? Le Chatelier's Principle says, in somewhat unsophisticated terms, that a system in equilibrium will try to undo what we do to it. So if we add HI, the reaction will shift to use up the added HI. The ONLY way it can...
*Saturday, July 13, 2013 at 10:18pm*

**General Chemistry**

H2 (g) + I2 (g) -> 2HI (g) What would happen to the amount of iodide present if hydrogen iodide is added? Removed? The volumeof the system is decreased? I got increase, decrease & same as my answer, but I don't completely understand it. Please help.
*Saturday, July 13, 2013 at 6:39pm*

**theory to practice**

Which of the following is an obstacle to learning for a begining mover? A.Knowledge of what elements of the movememts to focus on. B. Chronic indifference characteristic between birth and age three. C.shorter time to monitor perceptual input from the visual system. D. ...
*Thursday, July 11, 2013 at 3:38pm*

**ETH/125**

2.Sociologists point out that gender differences are maintained through a. systematic socialization. b. the legal system. c. the class system. d. biological differences. i am torn between a & d
*Wednesday, July 10, 2013 at 9:15pm*

**eth/125**

Sociologists point out that gender diffrences are maintained through a.systematic socialization b.the legal system c.the class system d. All of these
*Wednesday, July 10, 2013 at 9:11pm*

**Calculus**

During a flu epidemic, the number of children in the Woodbridge Community School System who contracted influenza after t days was given by the following. Q(t) = 8000/(1+199 e^(-0.6 t)) (a) How many children were stricken by the flu after the first day? children (b) How many ...
*Wednesday, July 10, 2013 at 8:53pm*

**Bio**

1. Pseudoscience and nonscience differ in that: A. nonscience is not valuable and pseudoscience is valuable. B. pseudoscience deceives, misleads, or misinforms and this is not a primary characteristic of nonscience. C. nonscience forms hypotheses and pseudoscience does not. D...
*Wednesday, July 10, 2013 at 2:30pm*

**business communication**

can you plz correct it Howdy comrades! Shouldn’t surprise anyone that we took a beating this year, given the insane pricing moves our knucklehead competitors have been making. I mean how those clowns can keep turning a profit is beyond me, what with steel costs still ...
*Wednesday, July 10, 2013 at 10:06am*

**PHYSICS**

An airplane is flying straight and level at a speed vo = 150 mph and with a constant time rate of increase of speed v' = 20 ft/s^2, when it starts to climb along a circular path with a radius of curvature p = 2000 ft. The airplane maintains v' constant for about 30s. ...
*Tuesday, July 9, 2013 at 11:12pm*

**Spanish**

To install the Spanish Keyboard on Windows XP, click first on "Start" and then open the "Control Panel." – Once there click on "Regional and Language Options" (If you are in an older version of windows, click on "Keyboard" in the &...
*Tuesday, July 9, 2013 at 10:38pm*

**Physics (mechanics)**

A u-control airplane of mass m is attached by control wires of length L and negligible mass to the "pilot" who controls the lift provided by the wing FL. The wires control the plane's elevator or angle of attack. The plane's engine keeps it moving at constant...
*Tuesday, July 9, 2013 at 4:48pm*

**Number System**

Subtraction is done as in decimal, one digit at a time from the right. Borrow from the left digit if necessary. If the result is expected to be negative, reverse the subtraction (to get a positive difference) and then change the sign. Example: 1101 -0110 ----- 0111
*Tuesday, July 9, 2013 at 6:34am*

**Number System**

Not sure if the question was quoted properly, because the last group of the first number has only three digits. To add two binary numbers, we add a digit at a time just like in decimal, using the following rule: 0+0=0 0+1=1 1+0=1 1+1=0 with a carry of 1 So to add 101 to 111 we...
*Tuesday, July 9, 2013 at 6:31am*

**Number System**

You can convert too hex from binary by grouping, from the right, four digits at a time: 1 1011 1011 and convert each group from binary to a decimal digit, using A for 10, B for 11...and F for 15. For example, 1011=> 8+0+2+1=11=>B so the above example becomes 1BB in hex.
*Tuesday, July 9, 2013 at 6:28am*

**Number System**

Subtract the following numbers using the standard method. 111 1110 0010 - 100 0111 - 111 =
*Tuesday, July 9, 2013 at 6:20am*

**Number System**

Add the following numbers: 1110 1011 101 + 101 1111 + 1111 =
*Tuesday, July 9, 2013 at 6:18am*

**Number System**

Converts binary 110111011 to hexasecimal.
*Tuesday, July 9, 2013 at 6:13am*

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