Friday

July 3, 2015

July 3, 2015

**chemistry**

a system consisting of 1.5 mol CO2(g), initially at 15deg and 10 atm and confined to a cylinder of cross-section 10.0 cm2. it is allowed to expand adibatically against an external pressure of 1.0 atm until the piston has moved through 20 cm. assume that carbon dioxide may be ...
*Wednesday, October 1, 2014 by rhulani j mathebula*

**science**

1) Which of the following is a valid reason why a scientist might reject a scientific theory? (1point) Some people disagree with it. It covers too broad a topic. New evidence contradicts it.*** It is too old. 2) A scientific hypothesis must be (1point) Correct Able to be ...
*Wednesday, October 1, 2014 by SkatingDJ*

**Science**

-Describe the zero sum rule -True of False: The formula for the nitride ion is N^(-3) -True of False: The stock system shows the charge on the negative ion Answer this Question
*Wednesday, October 1, 2014 by Al*

**Chemistry **

-Describe the zero sum rule -True of False: The formula for the nitride ion is N^(-3) -True of False: The stock system shows the charge on the negative ion
*Wednesday, October 1, 2014 by Alyssa*

**Math**

An electrician was hired to run the wires for a surround-sound stereo speaker system. She purchased 2 rolls of 14-gauge speaker wire. Each roll contains 4 m of wire. For each of 2 speakers, 2 ft. of wire are required. For each of the other 2 speakers, 11 ft. of wire are ...
*Wednesday, October 1, 2014 by Whitney*

**Chemistry **

HELP PLEASE. I have no idea how to set this up. I tried using the q=mc(change in temp) equation but its not working out. A 59.8 g block of an unknown metal at 87.5 degrees Celsius was dropped into an insulated vesssel containing approximately 33 g of ice and 23 g of water at 0...
*Tuesday, September 30, 2014 by Taylor*

**Pre-Calculus/Trigonometry**

Solve the following system of equations algebraically. Verify the solution by using matrices. 8x-2y=5 -12x+3y=7
*Tuesday, September 30, 2014 by Anonymous*

**Chemistry**

Chemistry question: Given: CH4 + 2O2 ~ CO2 + 2H2O C - H = 99 kcal O - O = 119 kcal C = O = 192 kcal O - H = 111 kcal Calculate the change in energy for the CH4 - O2 system.
*Tuesday, September 30, 2014 by Rainey*

**physics**

This graph in the figure (Figure 1) shows how the temperature of an initially solid sample changes as time goes by when it is placed above a flame that delivers a constant heating power (that is, a fixed amount of energy input in the form of heat each second). The process ...
*Tuesday, September 30, 2014 by deeyn*

**Pre-Calculus/Trigonometry**

Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22
*Monday, September 29, 2014 by Anonymous*

**algebra2**

graph each system of equations and describe it as consistent and independent, consistent and depedneent, or inconsistent 40. x-6y=12 3x+18y=14 41. -5x-6y=13 12y+10x=-26 42. 8y-3x=15 -16y+6x=-30
*Monday, September 29, 2014 by anonymous*

**algebra 2**

graph each system of equations and describe it as consistent and independent, consistent and depedneent, or inconsistent 37. y=3x-4 y=6x-8 38. y=2x-1 y=2x+6 39. 2x+5y=10 -4x-10y=20
*Monday, September 29, 2014 by anonymous*

**algebra 2**

graph each system of equations and describe it as consistent and independent, consistent and dependent, or inconsistent 10. y+4x=12 3y=8-12x 11. -2x-3y=9 4x+6y=-18 12. 9x-2y=11 5x+4y=13
*Monday, September 29, 2014 by anonymous*

**Pre-Calculus/Trigonometry**

give an example of an arithmetic sequence also give an example of a system of equations with no solutions
*Monday, September 29, 2014 by Anonymous*

**Statistics**

James has $78. He nees to buy some cds and tapes. He can buy 4 cds and 3 tapes and has $3 left or buy 3 cds and 5 tapes and has $13 left. Using system equation, find the cost of each.
*Monday, September 29, 2014 by Emelda*

**History**

How did the settlement of whites and their influence eventually affect the economy of the Five Tribes? A.Tribes learned new herding techniques and adopted US currency. B.Tribes traded in their villages rather than using trading posts. C.Tribes began to use a barter system to ...
*Monday, September 29, 2014 by Katt<3Bobby*

**physics**

One object is at rest and another is moving. The two collide in a one-dimensional, completely inelastic collision. In other words, they stick together and move off with shared velocity. The speed of the object that is moving initially is 25 m/s. The masses of the two objects ...
*Monday, September 29, 2014 by aithusa20*

**World History Answer Check**

1. What was the overall effect of Napoleon's Civil Code? A: The overall effect of Napoleon's Civil Code was to erode the remnants of the feudal system by further weakening the traditional power of the nobility and clergy. 2. Why did being a sea power help Britain to ...
*Sunday, September 28, 2014 by Victoria*

**Physics**

A force F acts to the right on a 4.81 kg block. A 2.53 kg block is stacked on top of the 4.81 kg block and can slide on it with a coefficient of friction of 0.2 between the blocks. The table has a coefficient of friction of 0.23. The acceleration of gravity is 9.8 m/s 2 . The ...
*Sunday, September 28, 2014 by Ahmed*

**Physics **

A system absorbs 1000 Joules of heat and delivers 600 Joules of work, while loosing 100 Joules of heat by conduction to the atmosphere, the change in the internal energy of the system will be. My solution. I used U=Q+A, and my answer was 1600, but its real answer is 300 Joules...
*Sunday, September 28, 2014 by Shahab Mirza*

**Economics**

What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?
*Sunday, September 28, 2014 by Chloe*

**Material Sciences**

Given an aluminum shell perfectly bonded to a steel core, what is the thermal stress in the aluminum shell when the system is heated from the unstressed state (20∘C) to 180∘C? Consider only deformations in the axial directions. Give your answer in MPa αAl=23.6...
*Saturday, September 27, 2014 by qwerty*

**Accounting Please help me**

Bethany Link delivers parts for several local auto parts stores. She charges clients $0.75 per mile driven. She has determined that if she drives 2,100 miles in a month, her average operating cost is $0.55 per mile. If Bethany drives 4,200 miles in a month, her average ...
*Saturday, September 27, 2014 by Vanessa*

**Pre-Calc**

Solve the system of equations using either the substitution method or the multiplication/addition method answer: 3x+2y=14 2x-4y=4
*Saturday, September 27, 2014 by Anonymous*

**Business**

What happens to companies with high operating leverage when the market declines? What happens when the market expands?
*Saturday, September 27, 2014 by Chloe*

**Finance**

What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?
*Saturday, September 27, 2014 by Chloe*

**Finance**

1. What happens to companies with high operating leverage when the market declines? What happens when the market expands?
*Saturday, September 27, 2014 by Chloe*

**algebra 2**

Solve each system of equation by grpahing? 3. y=-3x+6 2y=10x-36 4. y=-x-9 3y=5x+5
*Saturday, September 27, 2014 by anonymous*

**math**

Identify the solution(s) of the system of equations, if any. x + 5y = 6 6x - 15y = 18
*Saturday, September 27, 2014 by Brenda*

**Accounting 5**

Bethany Link delivers parts for several local auto parts stores. She charges clients $0.75 per mile driven. She has determined that if she drives 2,100 miles in a month, her average operating cost is $0.55 per mile. If Bethany drives 4,200 miles in a month, her average ...
*Friday, September 26, 2014 by Vanessa*

**chemistry**

An electrical heater delivers 4.070 kJ of energy (as heat) to a system consisting of the gas inside a cylinder having a movable piston. As a result, the piston moves against a constant external pressure such that P ∆V = 2.442 kJ. What is the change in internal energy for...
*Friday, September 26, 2014 by korko*

**Accounting**

Anheuser-Busch InBev Companies, Inc reported the following operating information for a recent year. In addition assume that Anheuser-Busch InBev sold 200 million barrels of beer during the year. Assume that variable costs were 75% of the cost of goods sold and 40% of selling, ...
*Friday, September 26, 2014 by Anonymous*

**algebra 2**

solve each system of equation by using a table 1. y=3x-4 y=-2x+11 2. 4x-y=1 5x+2y=24 how do you do these?
*Friday, September 26, 2014 by anonymous*

**Pre-Calculus**

Help Please Solve the following system of equations. Round your answers to the nearest tenth. Your answer will be in the form: (M,N). Find M + N, rounded to the nearest tenth. 5x+2y=7 -2x+6y=9
*Friday, September 26, 2014 by Anonymous*

**chemistry**

The heat lost or gained by a system is related to its temperature change by a property called its heat capacity. The molar heat capacity of metals at or above room temperature equals 24.92 J/K.mol. The temperature of a block of lead (MM 207.2) was raised by 13.1 degrees when ...
*Thursday, September 25, 2014 by korko*

**chemistry**

The specific heat capacity of gold at 25°C is 1.290×10-1 J/g/K. For a 5.25×102 g sample of gold, how much will the temperature increase if 6.908×102 J of energy is put into the system? (Assume that the heat capacity is constant over this temperature range.)
*Thursday, September 25, 2014 by korko*

**Algebra**

In the metric system there are two official temperature scales: degree Celsius and kelvin. The kelvin temperature scale is obtained by shifting the Celsius scale so of any heat whatsoever. An equation about the relationship between the two scales follows: kelvin~ degree ...
*Thursday, September 25, 2014 by KG*

**HISTORY 2 **

6. which of the following does NOT describe women's work in early Georgia A. Planting and tending a home garden B. Working at the local hospital C. Making clothes for the family D. Taking care of the children** 7. which of the following groups of new settlers in Georgia ...
*Thursday, September 25, 2014 by HELP ME 911 MS. SUE*

**Physics**

A hanging block of mass X is pressed with a force F at angle theta to the vertical against a frictionless wall and is connected to another hanging block of mass Y by a pulley system. What is the expression for the acceleration of Y?
*Thursday, September 25, 2014 by Anonymous-Please Help!*

**physics**

Consider the following specific case of the system described in the example above. Suppose the angle θ is 78.0° and the mass of the ball is 7.00 kg.
*Thursday, September 25, 2014 by Anonymous*

**Chemistry**

Given: CH4 + 2O2 ~ CO2 + 2H2O C - H = 99 kcal O - O = 119 kcal C = O = 192 kcal O - H = 111 kcal Calculate the change in energy for the CH4 - O2 system.
*Thursday, September 25, 2014 by Rainey*

**geometry**

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 to ...
*Wednesday, September 24, 2014 by Asics*

**algebra 2**

Solve the following systems of equations. If the system cannot be solved ,state that it cannot be solved and explain why. 1.3x+y=7 3x+y=10 2. 5x-2y=-24 -4y=-48-10x
*Wednesday, September 24, 2014 by Hannah *

**system of equations**

today, johns mom is 5 times as old as he is. in 7 years she will only be 3 times as old. what is johns age today?
*Wednesday, September 24, 2014 by Nicole*

**physics**

A spring with a spring constant of 53.0 N/m is attached to different masses, and the system is set in motion. What is its period for a mass of 2.7 kg?
*Tuesday, September 23, 2014 by Anonymous*

**Calculus**

Scorpion Gulch and Western Railway are preparing to build a new line through Rolling Mountains. They have hired you to do some calculations for tunnels and bridges needed on the line. You set up a Cartesian coordinate system with its origin at the entrance to the tunnel ...
*Tuesday, September 23, 2014 by Nick*

**History**

I'm back. I didn't understand the answer yesterday, and I re-read my book, but I'm still confused. Can you help? 1. Why did the system of feudalism arise during the Middle Ages? A. to develop an economic system B. to determine jobs within a city C. to defend the ...
*Tuesday, September 23, 2014 by dddd47906*

**algebra**

what is the system of equation of: 0.25x+0.15y=2.5 1.25x-1.25y=7.5
*Tuesday, September 23, 2014 by jhia*

**algebra**

What is the system of equation of: 1/2x+-2/3y=4 2x+1/3y=7
*Tuesday, September 23, 2014 by jhia*

**algebra**

what is the system of equation of: 1/2x+ 1/2y=4 3x-2y=5/4
*Tuesday, September 23, 2014 by jhia*

**physics**

In the design of a rapid transit system, it is necessary to balance the average speed of a train against the distance between station stops. The more stops there are, the slower the train's average speed. To get an idea of this problem, calculate the time it takes a train ...
*Monday, September 22, 2014 by afia*

**physics**

In the design of a rapid transit system, it is necessary to balance the average speed of a train against the distance between station stops. The more stops there are, the slower the train's average speed. To get an idea of this problem, calculate the time it takes a train ...
*Monday, September 22, 2014 by afia*

**Physics**

a frictionless mass1(1kg) is accelerated by mass two(1kg). The two masses are conceted by inextensible,flexible string. calculate the acceleration of the system of the two masses.
*Monday, September 22, 2014 by Monica*

**Math**

Alice, Bob, and Charlie are three siblings with ages a, b, and c respectively. Their combine age is 18 years. Charlie is older than Bob. Alice's age is equal to twice the difference between Bob's and Charlie's ages. Bob's age is equal the average of Alice's...
*Monday, September 22, 2014 by Jim*

**History of Old Europe**

Why did the system of feudalism arise during the Middle East? A. to develop an economic system B. to determine jobs within a city C. to defend the country from attacks D. to organize the household of noblemen my answer- A if its wrong, can you tell me why??? and please tell me...
*Monday, September 22, 2014 by dddd47906*

**Physics **

The two masses shown in the figure are each initially 1.80 m above the ground, and the massless frictionless pulley is fixed 4.8 m above the ground. (mA = 1.5 kg and mB = 3.4 kg.) What maximum height does the lighter object reach after the system is released? [Hint: First ...
*Sunday, September 21, 2014 by Megan *

**MIS (java)**

Download A04.txt and copy it into a new Eclipse project named {NetID}A04. Rename (refector) {NETID}A03.java to {NETID}A04.java Modify the return type of magicEightBallIf and magicEightBallCase so they return a String instead of printing the result. Create a static method named...
*Sunday, September 21, 2014 by Mohammad*

**HR management**

Susan Moore is the number manager in charge of a 25-bed medical unit at St. Eligius Hospital. She is currently preparing the nurse staffing plan for the next fiscal year. Hospital management has provided all nurse managers with a list of assumptions for staff planning, most of...
*Sunday, September 21, 2014 by Anonymous*

**Operating system**

create a chart showing milestone in memory growth and the approximate date.
*Saturday, September 20, 2014 by Dominic*

**Operating system**

for a platform of your choice, research the growth in the size of main memory from the time the platform was developed to the present day
*Saturday, September 20, 2014 by Dominic*

**Science**

Which of the following shows the levels of organization in a multi-cell organism from the smallest level to the largest level? A- cell, tissue, organ, organ system, organism B- organism, organ system, organ, tissue, cell C- tissue, cell, organ, organ system, organism D- cell, ...
*Friday, September 19, 2014 by Skye*

**P.E**

A physician who treats disorders of the nervous system is a A. Psychiatric social worker B. Neuroligist C. Psych neruologist D. Clinical psychologist Is the answer B?
*Friday, September 19, 2014 by Gwen*

**Accounting**

An increase or decrease in accounts payable during a fiscal period has no effect on the net cash provided by operating activities.
*Friday, September 19, 2014 by Anonymous*

**owning and operating a car **

_________ of the vehicle is the likely consequence of failure to make the required loan payments. A. Theft B. Repossession C. Destruction D. Loss of warranty I put D and it said its wrong
*Friday, September 19, 2014 by Gadel*

**Physics **

A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +7.2 m/s and ax = +4.3 m/s2. The y components of the puck's initial velocity and acceleration are ...
*Thursday, September 18, 2014 by Sanz*

**Algebra 1--Please, Check My Answers!**

1. How did Mesoptamin and Egyptain city states develop concepts of law codes and divine kingship? 2. What was Charlemagne's influence on European civilization? Answers: 1. Hammurabi developed the concepts of law codes in Mesopotamia, while the pharaoh was the head of the ...
*Tuesday, September 16, 2014 by Victoria*

**Science **

Which component of the technological system is achieved when an automobile airbag inflates? A. Input B. Feedback C. Process D. Output Is the answer B?
*Tuesday, September 16, 2014 by Gwen*

**Algebra 1**

So I attempted this and I'm not sure if it's the correct answer - and I don't know how to graph it.. Student tickets to the Homecoming game cost $5 each. General admission tickets cost $8 each. So far, 150 tickets have been sold. $900 has been collected. A. Write a...
*Tuesday, September 16, 2014 by lost*

**Economics**

The key feature of a market system is A. competition. B. profit. C. demand. D. supply.
*Tuesday, September 16, 2014 by Tre*

**PLEASE CHECK ASAP**

Thanks for checking 1.D 2.C 3.B 4.C 5.C 1.According to "Michael Faraday's World," which intrigued Michael Faraday? A.automobiles B.airplanes C.photography D.batteries 2.How are the operating room in the Williams story and the atom-splitting lab in the Fermi story...
*Tuesday, September 16, 2014 by Matt*

**differential calculus**

a SECURITY CAMERA is centered 50 feet above a 100-foot hallway. it is easiest to design the camera with a constant angular rate of rotation, but this results in a variable rate at which the images of the surveillance area are recorded. so, it is desirable to design a system ...
*Tuesday, September 16, 2014 by =)*

**Social Studies**

3. Which of the following are true about the system of mercantilism? A. It maintains a favorable balance of trade B. The colony produces materials that the mother country cannot produce C. The prosperity of the country as a whole is more important than the wealthy of ...
*Tuesday, September 16, 2014 by Amber*

**History of old Europe**

The Middle Ages began with the collapse of... A. Renaissance. B. Roman Empire. C. Kingdom of Mali. D. Tang dynasty. My answer- A Why did the system of feudalism arise drink ht eMiddle Ages? A. to develop an economic system b. to determine jobs within city C. to defend the ...
*Monday, September 15, 2014 by dddd47906*

**English Classification Essay**

I have a lot of holes where I need to look up some research, but can you give me some feedback on the following classification essay: P.J. O'Rourke said, “We loved cars until the 70's or so, they then became appliances. What began as pleasure became a necessity.&#...
*Monday, September 15, 2014 by C*

**World history help**

What does the juror token tell us about Greeks justice system? Need help ASAP!!!
*Monday, September 15, 2014 by Anonymous*

**Science **

1. Why do scientists use models of natural systems? (1 point) Scientists use models of natural systems because these systems are often too large, too small, or too complex to study directly. Scientists use models of natural systems because they like to use art in science. ...
*Monday, September 15, 2014 by hannah*

**Sience Plase help check my answers **

1. Why do scientists use models of natural systems? (1 point) Scientists use models of natural systems because these systems are often too large, too small, or too complex to study directly. Scientists use models of natural systems because they like to use art in science. ...
*Monday, September 15, 2014 by hannah*

**english**

which is a better thesis A. Because it has become outdated, the electoral college should be replaced by a system that allows the US president to be elected by direct popular vote. B. Rather than voting for a presidential candidate, voters in a US presidential election merely ...
*Monday, September 15, 2014 by britt*

**PLEASE CHECK ASAP!**

Thanks for checking 1.D 2.C 3.B 4.C 5.C 1.According to "Michael Faraday's World," which intrigued Michael Faraday? A.automobiles B.airplanes C.photography D.batteries 2.How are the operating room in the Williams story and the atom-splitting lab in the Fermi story...
*Monday, September 15, 2014 by Matt*

**computer science**

Which of the following is a type of software program used to write code and develop other programs. A: a command line interpreter B: the turtle graphics window C: an operating system D: an integrated development environment Please help asap!
*Monday, September 15, 2014 by Skye*

**COMPUTER SCIENCE**

Which of the following is a type of software program used to write code and develop other programs. A: a command line interpreter B: the turtle graphics window C: an operating system D: an integrated development environment Please help asap!
*Sunday, September 14, 2014 by Ash*

**World History Answer Check (Ms.Sue) **

How did King Henry II's goal to become more powerful affect the development of law? A: Henry's goal to become more powerful affected the development of law as it ultimately expanded the power of royal courts. Since royal courts were now found throughout England, a body...
*Sunday, September 14, 2014 by Victoria*

**Physics**

Your projectile launching system is partially jammed. It can only launch objects with an initial vertical velocity of 42.0 m/s, though the horizontal component of the velocity can vary. You need your projectile to land 211 m from its launch point. What horizontal velocity do ...
*Saturday, September 13, 2014 by Alexandra *

**Organic-Chem Help**

You wish to purify by distillation a material that has a boiling point of 205 C and reacts with air but this material will decompose if heated above 150 C. How would you set up the system to distill this material? Show steps Pleaseeeee!!!!!!!!!! Thank you!!!!
*Friday, September 12, 2014 by Tanya*

**MATHS **

I WANT FREE PRACTICE PAPER OF NUMBER SYSTEM,WHOLE NUMBERS,INTEGERS,PICTOGRAPH
*Friday, September 12, 2014 by vaibhav*

**MATH **

Explain why the digits in a place value system with base, b, are 0,1,... b-1 and why no digits for numbers greater than b-1 are needed
*Friday, September 12, 2014 by TAY*

**physics**

A car begins at rest at t0 = 0. The car starts moving and finally covers a distance d = 617 m in a time tf = 105 s. In a coordinate system with north being the positive x-direction, the car's motion is in the southern direction. What was the car's average speed during...
*Friday, September 12, 2014 by joe new*

**computer science**

CSI 16 1 Group Assignment 1 201 3 P age 2 of 6 1. 1. How many milliseconds (ms) are in 1 second? 2. How many microseconds are in 1 second? 3. How many nanoseconds (ns) are in 1 millisecond? 4. How many microseconds are in 1 millisecond? 5. How many nanoseconds are in 1 ...
*Friday, September 12, 2014 by Tefo sello*

**physics**

A car begins at rest at t0 = 0. The car starts moving and finally covers a distance d = 617 m in a time tf = 105 s. In a coordinate system with north being the positive x-direction, the car's motion is in the southern direction (see figure. What was the car's average ...
*Friday, September 12, 2014 by joe 13*

**Physics **

A ball is thrown horizontally from the top of a 65 m building and lands 105 m from the base of the building. Ignore air resistance, and use a coordinate system whose origin is at the top of the building, with positive y upwards and positive x in the direction of the throw. 1...
*Thursday, September 11, 2014 by Lauren HELP *

**Physics **

At the local swimming pool, the diving board is elevated h = 7.5 m above the pool surface and overhangs the pool edge by L = 2 m. A diver runs horizontally along the diving board with a speed of v0 = 3.4 m/s and then falls into the pool. Neglect air resistance. Use a Cartesian...
*Thursday, September 11, 2014 by Lauren HELP *

**science**

Which of the following is an example of a physical system? hurricanes Volcanoes Glaciers Plant & Animal Communities ***All of the Above*** is it all of the above? Pls help asap!
*Thursday, September 11, 2014 by SkatingDJ*

**History**

I am home schooled and I am suppose to ask people their ideas on how to solve the Social Security problem. It says in my book the population of working Americans is not growing quickly enough to fund continued increases in Social Security spending. At some point after the year...
*Thursday, September 11, 2014 by Meghan*

**physics**

A runner is at the starting gate and hears the starting gun. He begins running with a constant acceleration ai = 0.55 m/s2. He crosses the finish line at d = 100 m and then begins slowing down. It takes him tr to cross the finish line. It takes him ts = 6.5 s to return to rest...
*Thursday, September 11, 2014 by joe 10*

**physics**

A runner is at the starting gate and hears the starting gun. He begins running with a constant acceleration ai = 0.55 m/s2. He crosses the finish line at d = 100 m and then begins slowing down. It takes him tr to cross the finish line. It takes him ts = 6.5 s to return to rest...
*Thursday, September 11, 2014 by joe 10*

**10**

A runner is at the starting gate and hears the starting gun. He begins running with a constant acceleration ai = 0.55 m/s2. He crosses the finish line at d = 100 m and then begins slowing down. It takes him tr to cross the finish line. It takes him ts = 6.5 s to return to rest...
*Thursday, September 11, 2014 by joe*

**10**

A runner is at the starting gate and hears the starting gun. He begins running with a constant acceleration ai = 0.55 m/s2. He crosses the finish line at d = 100 m and then begins slowing down. It takes him tr to cross the finish line. It takes him ts = 6.5 s to return to rest...
*Thursday, September 11, 2014 by joe*

**chemistry**

A system initially contains 0.100 mol each of the three species sealed in a 10.0 L container. The temp was raised to a temp where the equilibrium constant Kc, is 12.6 for PCl3(g) + Cl2(g)--> <-- PCl5(g) Calculate the equilibrium concentration of all species.
*Wednesday, September 10, 2014 by Anonymous*

**chemistry**

A system initially contains 0.100 mol each of the three species sealed in a 10.0 L container. The temp was raised to a temp where the equilibrium constant Kc, is 12.6 for PCl3(g) + Cl2(g)--> <-- PCl5(g) Calculate the equilibrium concentration of all species.
*Wednesday, September 10, 2014 by Anonymous*

**Physics1**

A vector is drawn with its tail at the origin of an xy coordinate system. In which quadrant does the vector point if the angle with respect to the positive direction of an x axis is -135°?
*Wednesday, September 10, 2014 by Alex*