Thursday

April 24, 2014

April 24, 2014

**Recent Homework Questions About Operating Systems**

Post a New Question | Current Questions

**science help ASAP please**

The ______ system uses all of your body’s senses to help maintain homeostasis. Is the answer "control"? Or is it "endocrine"?
*Wednesday, March 13, 2013 at 8:14pm*

**math help please ASAP**

The ______ system uses all of your body’s senses to help maintain homeostasis. Is the answer "control"? Or is it "endocrine"?
*Wednesday, March 13, 2013 at 7:31pm*

**Java programming**

can you show me where is the wrong for this program..because it contains error..i dont know where is it wrong..help..tq.:) import java.util.Scanner; public class BMR { public static void main(String[] args, int x) { Scanner keyboard = new Scanner(System.in); int pound, inch,...
*Wednesday, March 13, 2013 at 2:43pm*

**biology**

Caffeine is the most widely used stimulant in the world today. This naturally produced molecule is found in popular beverages from coffee to black tea to Coca Cola. Although humans use caffeine to ward off drowsiness, the caffeine produced by plants makes the leaves and seeds ...
*Wednesday, March 13, 2013 at 12:56pm*

**calculus**

Based on data from 1999 to 2001, the rate of change in the annual net sales of Pepsi-Cola North America may be modeled by R(t) = −131t − 749.5 million dollars per year and the rate of change in the annual operating profit may be modeled by P(t) = 12t + 76 million ...
*Wednesday, March 13, 2013 at 12:34pm*

**Phyics**

The internal energy change in a system that has absorbed 4 Kcals of heat and 1000 J of work is:
*Tuesday, March 12, 2013 at 11:36pm*

**Algebra**

Given the system of equations \begin{cases} x(x+y) &=& 9 \\ y(x+y) &=& 16 \end{cases} the value of xy can be written as \frac{a}{b} where a and b are positive coprime integers. Find a+b.
*Tuesday, March 12, 2013 at 10:06pm*

**chemistry**

I need 1L of a pH 4 buffer with a total molarity of 1. Propose a buffer system and a recipe to achieve this goal. (acetic acid/acetate would probably be a good choice.) help please!
*Tuesday, March 12, 2013 at 8:28pm*

**chemistry**

I need 1L of a pH 4 buffer with a total molarity of 1. Propose a buffer system and a recipe to achieve this goal. (acetic acid/acetate would probably be a good choice.) help please!
*Tuesday, March 12, 2013 at 8:25pm*

**..**

if you already had the chiken pox you can be arournd a person with the disease without no fear of becoming sick. what feature of the immune system explains this? a. acquired immunity b. cell- mediated immunity c. humoral immunity d. primary immune system
*Tuesday, March 12, 2013 at 6:15pm*

**English**

Thank you! Specific sentence about capitalizating: The sentence is also long. Would you break it up like my eaxample. I have a Web Design and Interactive Media Associates degree. I also have experience in basic web design, graphic design, basic web scripting, web system ...
*Tuesday, March 12, 2013 at 3:51pm*

**chemistry**

I need 1L of a pH 4 buffer with a total molarity of 1. Propose a buffer system and a recipe to achieve this goal. (acetic acid/acetate would probably be a good choice.) help please!
*Tuesday, March 12, 2013 at 12:56pm*

**algebra**

Given the system of equations x(x+y)=9 y(x+y)=16 the value of xy can be written as a/b where a and b are positive coprime integers. Find a+b.
*Tuesday, March 12, 2013 at 12:06pm*

**Physics**

A block of mass m1 = 22.0 kg is connected to a block of mass m2 = 40.0 kg by a massless string that passes over a light, frictionless pulley. The 40.0-kg block is connected to a spring that has negligible mass and a force constant of k = 260 N/m as shown in the figure below. ...
*Tuesday, March 12, 2013 at 1:53am*

**Finance**

The Oakland Mills Company has disclosed the following financial information in its annual reports for the period ending March 31, 2011: sales of $1,544,077, costs of goods sold of $639,978, depreciation expenses of $175,000, and interest expenses of $89,575. Assume that the ...
*Tuesday, March 12, 2013 at 1:15am*

**Health Ms. Sue please**

1. What occurs in a woman's body during a menstrual cycle? (1 point) The egg matures in the ovary. The uterine lining builds up. The egg releases from the ovary. all of the above 2. The _______ produces the hormone that develops the reproductive system, which is ...
*Monday, March 11, 2013 at 8:05pm*

**calculus**

Based on data from 1999 to 2001, the rate of change in the annual net sales of Pepsi-Cola North America may be modeled by R(t) = −131t − 749.5 million dollars per year and the rate of change in the annual operating profit may be modeled by P(t) = 12t + 76 million ...
*Monday, March 11, 2013 at 3:19pm*

**Chemistry**

Iodine is mainly found in water in the trioxide ion, I3 which is formed by the combination of molecular iodine, I2 and Iodide, I-, according to the equation: I2(aq) +I-(aq) <----> I3(aq) QUESTION: how does the system in the equilibrium seem to respond to the changes ...
*Monday, March 11, 2013 at 2:37pm*

**Bioprocessing**

A continuously operated 1000 liter CSTR is used for production of biomass from glucose provided by the feed (feed rate of 100l/h and glucose concentration of 10 g/l). The bacteria show Monod type growth with a maximal specific growth rate of 0.4/h and an affinity towards ...
*Monday, March 11, 2013 at 1:26am*

**math**

use subsitution system to solve 4x+5y=21 Y=3x-11
*Sunday, March 10, 2013 at 8:51pm*

**life orientation**

Name 3 different systems of media ownership that can be found worlwide.Name a country where each system can be found
*Sunday, March 10, 2013 at 3:12pm*

**Algebra 1**

Solve the system by addition 10x+3y=4 -20x-6y=-8
*Sunday, March 10, 2013 at 12:17pm*

**Algebra 1 **

Solve the system by addition. 10x+3y=4 -20x-6y=-8
*Sunday, March 10, 2013 at 12:13pm*

**stats**

Suppose that 50 identical batteries are being tested. After 8 hours of continuous use, assume that a given battery is still operating with a probability of 0.70 and has failed with a probability of 0.30. What is the probability that fewer than 40 batteries will last at least 8...
*Sunday, March 10, 2013 at 8:45am*

**Physics**

The system has two wheels and requires an effort of 12N to lift a load of 4kg at constant speed. Find M.A nd V.R.. Calculate work done by effort to raise load of 2m and efficiency of this machine.
*Sunday, March 10, 2013 at 8:22am*

**Introduction to Business Environment Chapter 2**

The world's population is growing more slowly than expected, and there are some industrial countries in which growth might be so slow that there will be too many old people and too few young people to support them. (Points : 1) True False 2. In a free market system, price ...
*Sunday, March 10, 2013 at 5:40am*

**strategic ffinancial mangement**

XYZ company is contemplating the purchase of a new machinery costing rupees 30000with an expected life of 5 year at the end of which period , it can be solved for rupees 750 thousand in replacement of an old machine purchased 3 years ago for rupees 15000 with an expected life ...
*Sunday, March 10, 2013 at 5:01am*

**english**

This technology allows the online learner to connect to the online school in order to access the courses. A. Multimedia B. Internet C. Operating system D. Browser is it B
*Saturday, March 9, 2013 at 9:01pm*

**Algebra 2...**

On isometric dot paper, graph the system of equations at right. What shape is their intersection? Use color to show the intersection clearly on your graph. 10x + 6y + 5z = 30 6x + 15y + 5z = 30 Is the intersection where the two planes OVERLAP?
*Saturday, March 9, 2013 at 7:44pm*

**Astronomy - Physics**

Finally, we will look at a system that is in an orbit comparable to the Earth to see how the angle that the light strikes the surface and the length of day contribute to the total amount of energy that we receive from the Sun at the two solstices. Recall that the changing ...
*Saturday, March 9, 2013 at 7:20pm*

**Account**

Updraft Systems, Inc., makes paragliders for sale through specialty sporting goods stores. The company has a standard paraglider model, but also makes custom-designed paragliders. Management has designed an activity-based costing system with the following activity cost pools ...
*Saturday, March 9, 2013 at 5:42pm*

**Accounting - Struggling answering this.**

Updraft Systems, Inc., makes paragliders for sale through specialty sporting goods stores. The company has a standard paraglider model, but also makes custom-designed paragliders. Management has designed an activity-based costing system with the following activity cost pools ...
*Saturday, March 9, 2013 at 5:07pm*

**system development**

Terrier News Situation: Terrier News is a monthly newsletter devoted to various breeds of terriers and topivs of interest to terrier owners and breeders. Annie West, the editor and publisher, asked you to help her design a systems to enter and manage the hundreds of classified...
*Saturday, March 9, 2013 at 12:10am*

**Teacher Aide**

Which statementis true regarding the structure of the school system in the U.S. a its centralized under the Dept of Education b It's decentralized c It's controlled by the teacher's and their unions d It's managed by the state
*Saturday, March 9, 2013 at 12:00am*

**math**

use substitution to solve system -2x+y= -9 =5x+4y= -30
*Friday, March 8, 2013 at 9:23pm*

**summarize**

Decision making is a process by which several possibilities are considered and prioritized, resulting in a clear choice of one option over others. Decision making is a fact of life personally and in business. We make dozens of decisions each day. Some decisions are simple, ...
*Friday, March 8, 2013 at 11:09am*

**math**

two systems of equations are giving below for each system choosethe best description of its solution if applicable give solution x+4y=8 -x-4y= -8 choose which one this problem fit in 1)the system has no solution 2) the system has a unique solution (x,y)= or the system has a ...
*Thursday, March 7, 2013 at 5:22pm*

**Physics-VASTS**

The Mass Budget: Mars Reconnaissance Orbiter Repair Mission Operational Concept Math Problem: The Mars Reconnaissance Orbiter (MRO) has encountered a failure in its High Resolution Imaging Science Experiment (HiRISE) camera. Mission Case: As the HiRISE camera contains the ...
*Thursday, March 7, 2013 at 4:29pm*

**algebra**

graph the system and write the solution -2x+y=6 y=1/2+3
*Thursday, March 7, 2013 at 3:55pm*

**math**

solve the system of equations in three variables -3x+y-z=-10
*Thursday, March 7, 2013 at 3:48pm*

**Fundamentals of math**

solve the system by substitution.. -3x-5y=-17 4x=y-8
*Thursday, March 7, 2013 at 3:36pm*

**math**

use substitution to solve the system -5x+2y=27 y=2x+11 x= y=
*Thursday, March 7, 2013 at 12:45pm*

**math**

use the substitution to solve the system -5x+24=27 y=2x+11 x= y=
*Thursday, March 7, 2013 at 12:40pm*

**math**

solve the following system of equations 8x+9y= -19 -3x+7y= -24 x= y=
*Thursday, March 7, 2013 at 12:08pm*

**Management for Organizations**

Would someone PLEASE check my answers..THANKS in advance!!! 1. Employee inventories and skills inventories are strategies for ________________________. (D) job design promoting-from-within external recruiting human resource planning 2. Which one of the following choices is not...
*Thursday, March 7, 2013 at 11:40am*

**physics**

A 445 g sample of ice at -58CENTIGRADE iS HEated until its temparature reaches -29 centigrade.find the change in heat contend of the system.
*Thursday, March 7, 2013 at 10:45am*

**pre ap chem**

determine the partial pressure of hydrogen if it's collected over water at 23 degrees celsius and the system has a total pressure of 724 mmHg then determine the mole fraction of water vapor in the system
*Wednesday, March 6, 2013 at 4:51pm*

**math**

solve the following system of equation 8x+9y=-19 -3x+7y=-24
*Wednesday, March 6, 2013 at 3:35pm*

**math help**

solve the following system 8x+19=-19 -3x+7y=-24
*Wednesday, March 6, 2013 at 3:20pm*

**math**

two systems of equations are given below for each system, choose the best description of it solution. 1) the system has no solution 2) the system has a unique solution 3) the system has a infinitity many solutions. they must satisfy the following equation x+4y=8 -x-4y=-8 -x-2y...
*Wednesday, March 6, 2013 at 2:51pm*

**chemistry**

The system H2 (g) + 3N2 (g) = NH3 (s) is at equilibrium.Use Le Chatelier's principle to predict the direction in which the equilibrium will shift if the ammonia is withdrawn from the reaction chamber.
*Wednesday, March 6, 2013 at 12:31pm*

**chemistry**

If the temperature of the system PCl5 (g) =PCl3 (s) + Cl2 (g) + 92.5 kj. is increased, predict the direction of th Le Chatelier's shift.
*Wednesday, March 6, 2013 at 12:26pm*

**Finance**

P5. Use your knowledge of income statements to fill in the missing items: SALES - $------ COST OF GOODS SOLD - $575,000 GROSS PROFIT - $1,600,000 GENERAL AND ADMINISTRATIVE EXPENSE - $200,000 SELLING AND MARKETING EXPENSE - $------ DEPRECIATION - $50,000 OPERATING INCOME...
*Wednesday, March 6, 2013 at 9:28am*

**Chemistry**

is Fe3O4 + 4H2 = 3Fe + 4H2O spontaneous at 298 K? Delta H system= 149.8 kj/mol Delta S system= 610.0 kj/mol
*Tuesday, March 5, 2013 at 9:18pm*

**algebra**

the primeter of a rectangle is 24ft. the length is 2 ft 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. is the answer for the length 14ft and the width 10 ft?
*Tuesday, March 5, 2013 at 6:46pm*

**Precalculus**

Please help me. Solve the system algebraically. 16)y=x^3+x^2 y=3x^2
*Tuesday, March 5, 2013 at 6:33pm*

**algebra**

the primeter of a rectangle is 24ft. the length is 2 ft 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. Is the answer for the lenght 16ft and 8ft for the width?
*Tuesday, March 5, 2013 at 6:33pm*

**Physics ~Thermodynamics~**

* Pressure * 1) what other ways can the pressure of a gas be changed? * Internal Energy * 2) A cup of hot tea is poured from a teapot, and a swimming pool if filled with cold water. a) Which one has a higher internal energy? b) Which has a higher average of kinetic energy? * ...
*Tuesday, March 5, 2013 at 6:15pm*

**algebra**

the primeter of a rectangle is 24ft. the length is 2 ft 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, write the first equation. 2x+2y=__ write the second equation. x=y+__ ...
*Tuesday, March 5, 2013 at 6:05pm*

**math**

solve the following system 8x+19=-19 -3x+7y=-24 x= y=
*Tuesday, March 5, 2013 at 4:45pm*

**algebra**

use substitution to solve the system -5x+24=27 and y=2x+11
*Tuesday, March 5, 2013 at 4:07pm*

**Algebra**

Suppose that x liters of 40% acid solution are mixed with y liters of a 43% solution to obtain 100 L of a 41% solution. One equation in a system for solving this problem is x + y = 100. What is the other equation?
*Tuesday, March 5, 2013 at 2:18pm*

**Physics**

Point charges Q1 ,Q2 , and Q3 reside on three corners of a square with sides of 1m ; the distance from Q2 to P3 is 2m (see diagram). (a) What is the electric potential,V , at P1 ? (Normalize the potential to be zero at infinity and give your answers in Volts). incorrect What ...
*Tuesday, March 5, 2013 at 9:02am*

**physics**

In the figure, a frictionless roller coaster car of mass m = 672 kg tops the first hill with speed v0 = 19.4 m/s at height h = 34.7 m. How much work does the gravitational force do on the car from that point to (a) point A, (b) point B, and (c) point C? If the gravitational ...
*Monday, March 4, 2013 at 6:47pm*

**Chemistry **

In the equation Q = mc(deltaT), I learned that Q means heat transfer. Is it the heat transfer from the system to the surroundings, i.e. the system loses/absorbs heat or is it from the surroundings to the system? A couple of places on the Internet say that Q is the heat energy ...
*Monday, March 4, 2013 at 6:35pm*

**corporate finance**

1. Which of the following is NOT correct for a firm with seasonal sales and customers who all pay promptly at the end of 30 days? a. DSO will vary from month to month. b. The quarterly uncollected balances schedule will be the same in each quarter. c. The level of accounts ...
*Monday, March 4, 2013 at 11:40am*

**Biology**

1-how do the parts of the respiratory system worj togather? 2-how does the respiratory system work with other body systems? 3- which body system helps Respiratory system bring oxygen to body? A- circulatory B- excretory C- digestive D- muscular
*Monday, March 4, 2013 at 10:15am*

**Fiance**

Use your knowledge of income statements to fill in the missing items: Sales Cost of goods sold $575,000 Gross profit $1,600,000 General and administrative expense $200,000 Selling and marketing expense $ Depreciation $50,000 Operating income $ Interest $100,000 Income before ...
*Sunday, March 3, 2013 at 7:33pm*

**Anatomy and Physiology II**

A 45 year-old female has thyroid disease. Because specific prosperities of the thyroid gland classify it as an endocrine organ, you conclude that this disease is an endocrine disease. Which answer below best describes the properties that classify the thyroid as an endocrine ...
*Sunday, March 3, 2013 at 6:42pm*

**Chem**

At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.200 M and [NO]=0.500 M. N2(g) + 02(g) <-> 2NO(g) If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after equilibrium is re-established?
*Sunday, March 3, 2013 at 6:16pm*

**Chemistry**

Consider the isomerization equlibria of an alkene (C4H8) that co-exists as three isomers. (These 3 are in an equlibrium triangle) Reaction 1: cis-2-butene ⇔ trans-2-butene Reaction 2: cis-2-butene ⇔ 2-methylpropene Reaction 3: trans-2-butene ⇔ 2-methylpropene...
*Sunday, March 3, 2013 at 5:14pm*

**algebra**

Solve the following system of equation using the graphing method. Y = negative X Y = X + 9 Don't know what to do. Thank u if u can helpme.
*Saturday, March 2, 2013 at 6:58pm*

**chemistry**

A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.20 gallons, what is the boiling point of the solution? Make the following assumptions in your calculation; at normal ...
*Saturday, March 2, 2013 at 1:59am*

**algebra**

Solve. x/9-1/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1 (x/9-1/7)=__________/1 multiply 26/63. STEP 2: Use the Distributive Property. _____/1 multiply x/9 - _________/1 multiply 1/7 = ______________. ...
*Friday, March 1, 2013 at 2:59pm*

**chemistry**

For a certain change, value of Delta U is -2.37 kJ. During the change, the system absorbs 650 joules. How much work did the system do? Please help! I get 3.02 but is not correct!!
*Friday, March 1, 2013 at 12:45pm*

**geometry**

4. In order to properly design a heating system for a greenhouse, the volume of air in the building needs to be determined. Find the volume of air in the greenhouse below. The length of the building is 40 feet long, the width is 20 feet long, and it is 8 feet from the ground ...
*Friday, March 1, 2013 at 12:42pm*

**IB Chemistry**

Which statements are correct for an endothermic reaction? I. The system absorbs heat. II. The enthalpy change is positive. III. The bond enthalpy total for the reactants is greater than for the products. A. I and II only B. I and III only C. II and III only D. I, II and III ...
*Thursday, February 28, 2013 at 11:57pm*

**Physics**

In the figure below, a small block of mass m = 0.034 kg can slide along the frictionless loop-the-loop, with loop radius 8 cm. The block is released from rest at point P, at height h = 7R above the bottom of the loop. (For all parts, answer using g for the acceleration due to ...
*Wednesday, February 27, 2013 at 8:46pm*

**Physics**

A point charge Q1=-2µC is located at x=0, and a point charge Q2=-8µC is placed at on the x -axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,E(x)=E(x)x^ , at various points along the -axis. (a)What is E(x) (in N/C) ...
*Wednesday, February 27, 2013 at 1:43am*

**World History- (Ms. Sue)**

What were the two ways that the North and the South differed by the mid-1800's? My answer: The North had a rapidly growing economy with a large and rapidly growing urban population and no slavery north of the border states. The South was dominated by a settled plantation ...
*Tuesday, February 26, 2013 at 8:42pm*

**Psychology - Please check my answers**

1. When considering marital separation and divorce as a social problem, an effective approach might be to: __x_a. develop counseling options for couples in crisis. ____b. focus on problems with the institution of marriage itself. ____c. develop anger-management programs for ...
*Tuesday, February 26, 2013 at 7:32pm*

**Psychology - Social Problems**

Please check my answers. 1. When considering marital separation and divorce as a social problem, an effective approach might be to: __x_a. develop counseling options for couples in crisis. ____b. focus on problems with the institution of marriage itself. ____c. develop anger-...
*Tuesday, February 26, 2013 at 5:14pm*

**Science**

Can you tell me the Main Idea(s)? There’s an old saying that oil and water don’t mix. But sometimes they do — especially when a chemical called a surfactant brings the two together. Once blended, oil and water become tough to pull apart. Unless, that is, you ...
*Tuesday, February 26, 2013 at 4:51pm*

**Science ASAP**

Can you tell me the Main Idea(s)? There’s an old saying that oil and water don’t mix. But sometimes they do — especially when a chemical called a surfactant brings the two together. Once blended, oil and water become tough to pull apart. Unless, that is, you ...
*Tuesday, February 26, 2013 at 4:16pm*

**physic**

a resistor has a voltage of 6.65 V and a current of 4.45 A. it is placed in a calorimeter containing 200g of water at 24 degree Celsius. the calorimeter is aluminum (specific heat= 0.220 cal/g-Celsius), and its mass is 60g. the heat capacity of the resistor itself is ...
*Tuesday, February 26, 2013 at 2:18pm*

**AP Chem**

For the following equilibrium system, which of the following changes will form more CaCO3? CO2(g) + Ca(OH)2(s) <--> CaCO3(s) + H2O(l) deltaH(rxn) = -113 kJ My choices are: a) Decrease temperature at a constant pressure (no phase change) B) Increase volume at a constant ...
*Tuesday, February 26, 2013 at 1:31pm*

**Physics**

One of the most powerful cranes in the world, operating in Switzerland, can slowly raise a load of 6000 tonne to a height of 12 m. (1 tonne = 1000 kg) The acceleration of gravity is 9.81 m/s2 . How much work is done by the crane? Answer in units of MJ I found it by using Work...
*Tuesday, February 26, 2013 at 10:03am*

**pROBABILITY AND STATISTIC..HELP...................**

a missile protection system consists of n radar sets operating independently each with probability .9 of defecting an aircraft entering a specified zone.all radar sets cover the same zone.if an airplane enters the same, find the probability that it will be detected if n=2 and n=4
*Tuesday, February 26, 2013 at 2:58am*

**Information Systems**

Problem #2 from page 173 Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID number. In addition, the ...
*Monday, February 25, 2013 at 6:25pm*

**science **

Describe the events that take place in the movement of fluid in the capillary beds. What forces are involved in the movement of fluid out of the capillaries and back in again? Where in the capillary does movement take place? What is the role of the lymphatic system in the ...
*Monday, February 25, 2013 at 1:51pm*

**Physics**

A point charge Q1=-2µC is located at x=0, and a point charge Q2=-8µC is placed at on the x -axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,E(x)=E(x)x^ , at various points along the -axis. (a)What is E(x) (in N/C) ...
*Monday, February 25, 2013 at 7:51am*

**Physics**

A point charge Q1=-2 microcoulomb is located at x=0, and a point charge Q2=+8 microcoulomb, is placed at x=-0.5 on the x axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,at various points along the x axis. a)What is electric ...
*Monday, February 25, 2013 at 4:45am*

**Physics**

Electric Field of Two Charges : 15.0 points A point charge is located at x=0, and a point charge is placed at on the -axis of a cartesian coordinate system.The goal of this problem is to determine the electric field, , at various points along the -axis. (a)What is (in N/C) ...
*Sunday, February 24, 2013 at 10:27pm*

**physics**

Your car's 31.5 W headlight and 2.15 kW starter are ordinarily connected in parallel in a 12.0 V system. What power would one headlight and the starter consume if connected in series to a 12.0 V battery? (Neglect any other resistance in the circuit and any change in ...
*Sunday, February 24, 2013 at 8:05pm*

**Math:o**

It takes a florist 3h 15min to make 3 small centerpieces and 3 large cebterpieces. It takes 6h 20min to make 4 small centerpieces abd 7 large centerpieces. How long does it take to make each small centerpiece and each large centerpiece? Write and solve a system of equations to...
*Sunday, February 24, 2013 at 7:03pm*

**math**

I need step by step explanation of the following problem. Using the lever system equation F1x=F2(d-x)solve the following problem: A screwdriver 9 in. long is used as a lever to open a can of paint. The tip of the screwdriver is placed under the lip of the can with the fulcrum ...
*Sunday, February 24, 2013 at 3:01pm*

**ibnozohr**

A point charge Q1=−2 μC is located at x=0, and a point charge Q2=+8 μC is placed at x=−0.5 m on the x-axis of a cartesian coordinate system.The goal of this problem is to determine the electric field, E⃗ (x)=E(x)xˆ, at various points along the ...
*Sunday, February 24, 2013 at 2:46pm*

**Algebra**

The owner of a hair salon charges $20 more per haircut than the assistant. Yesterday the assistant gave 12 haircuts. The owner gave 6 haircuts. The total earnings from haircuts were $750. Hw much does the owner charge for a haircut? Solve by writing and solving a system of ...
*Sunday, February 24, 2013 at 10:15am*

**Finance**

Tom company has sales of Rs.200,000/- with variable expenses of Rs.150,000/-, fixed expenses of Rs.60,000/-, and an operating loss of Rs.10,000/-. By how much would Tom have to increase its sales in order to achieve an operating income of 10% of sales?
*Sunday, February 24, 2013 at 1:37am*

**programming**

m trying to create an arraylist that's sorted but I have no idea how to sort the numbers. I cant use the array.sort method here is my code: public class Testing { private int [] data; private int count; private static int defCapacity = 10; public Testing (){ count = 0; ...
*Sunday, February 24, 2013 at 1:20am*

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