Wednesday
May 27, 2015

Homework Help: Computers: Operating Systems

Recent Homework Questions About Operating Systems

algebra
Solve the system of linear equations by graphing 3x+y=0 2x-y=5 Graph the system What is the solution of the system of equations?
Tuesday, March 10, 2015 at 3:56pm

physics
A system of 1216 particles, each of which is either an electron or a proton, has a net charge of -5.920×10-17 C. A)How many electrons are in this system (exactly)? B)What is the mass of this system (to three significant digits)?
Tuesday, March 10, 2015 at 3:45pm

physics
Determine the change in rotational kinetic energy when the rotational velocity of the turntable of a stereo system increases from 0 to 33 rpm. Its rotational inertia is 6.8×10−3kg⋅m2 .
Monday, March 9, 2015 at 9:48pm

Algebra 1
Solve each system using substitution. tell whether the system has one solution, infinitely many solutions, or no Solution. 1.) y=2x -1 2x +2y= 22
Monday, March 9, 2015 at 7:40pm

Accounting
Q.2. A company that uses the perpetual inventory system purchased $8,500 worth of inventory on September 25. Terms of the purchase were 2/10, n/30. The invoice was paid in full on October 4. Prepare the journal entries to record these merchandise transactions.
Monday, March 9, 2015 at 12:56pm

Physics
A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg • m2 and radius 2.40 m. The entire system is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a final position 1.10 m from the center of ...
Sunday, March 8, 2015 at 2:15pm

Criminal Justice/Probation & Parole
Sir Walter Crofton: A. established the "Irish System" that influenced the use of parole in the United States. B. was influential in the movement to establish a police force for the city of London. C. agreed with the classical approach to criminals. D. believed in ...
Saturday, March 7, 2015 at 12:03pm

Probability
A binary communication system is used to send one of two messages: (i) message A is sent with probability 2/3, and consists of an infinite sequence of zeroes, (ii) message B is sent with probability 1/3, and consists of an infinite sequence of ones. The ith received bit is &#...
Saturday, March 7, 2015 at 1:10am

Math
Directions: Solve this system of linear equations. Write the final answer as an ordered pair (x, y, z). 2x + 4y - z = 7 2x - 4y + 2z = -6 x + 4y + z = 0
Friday, March 6, 2015 at 7:32pm

Math Check
Hi! Can someone check these two answers? Thanks! Directions: Find the correct number of solutions for the following system of equations. 1.) 5x - 3y + 2z = 3 2x + 4y-z = 7 x - 11y + 4z = 3 2.) 2x + y- 3z = 4 4x + 2z = 10 -2x + 3y - 13z = -8 A.) One Solution B.) Infinitely Many...
Friday, March 6, 2015 at 4:23pm

Chemistry
The Russian Mir space station used a chemical oxygen generator system to make oxygen for the crew. The system ignited a tube of solid lithium perchlorate (LiClO4) to make oxygen and lithium chloride (LiCl): LiClO4 (s) ---> 2O2 (g) + LiCl (s) If you have 500 g of LiClO4, ...
Friday, March 6, 2015 at 2:40pm

Criminal Justice/Probation & Parole
Female offenders often receive harsher treatment in juvenile court because: A. the female offender is often more vicious and troubled. B. their offenses justify harsher treatment. C. females outnumber males in the system by nearly four to one. D. of the lack of alternative ...
Friday, March 6, 2015 at 1:40pm

Health
Which body system would you expect to provide you the most protection from colds and the flu? a.cardiovascular b.integumentary c.nervous d.respiratory
Friday, March 6, 2015 at 1:29pm

Probability
A binary communication system is used to send one of two messages: (i) message A is sent with probability 2/3, and consists of an infinite sequence of zeroes, (ii) message B is sent with probability 1/3, and consists of an infinite sequence of ones. The ith received bit is &#...
Friday, March 6, 2015 at 1:15pm

Ap physics
The two conditions for equilibrium often result in a system of equations such as F1 + F2 = 44.0 N and 3.00F1 − 8.00F2 = 0. (Due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in WebAssign.) (a) ...
Friday, March 6, 2015 at 11:54am

Math
1.) Solve this system of linear equations. Write the final answer as an ordered pair (x, y, -3). x - y + 2z = 22 3y - 8z = -9 z = -3 2.) Solve this system of linear equations. Write the final answer as an ordered pair (x, y, z). 2x + 4y + z = 1 x - 2y - 3z = 2 x + y - z = -1
Friday, March 6, 2015 at 11:52am

physics
A disk of mass m is spinning freely at 6.22 rad/s when a second disk of identical mass, initially not spinning, is dropped on it so that their axes coincide. In a short time the two disks are corotating. (The two disks have the same radius.) (a) What is the angular speed of ...
Friday, March 6, 2015 at 12:16am

physics
A mass of 1.50 kg is at (−2.55 m, 0) and a 2.04-kg mass at (4.00 m, 4.00 m). Find the center of mass of the system. ( m, m)
Friday, March 6, 2015 at 12:14am

physics
The two conditions for equilibrium often result in a system of equations such as F1 + F2 = 44.0 N and 3.00F1 − 8.00F2 = 0. find F1 and find F2
Friday, March 6, 2015 at 12:02am

Physics
Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Object A has a mass of mA = 17.0 kg and an initial velocity of VoA = 8.15 m/s, due east. Object B, however, has a mass ...
Thursday, March 5, 2015 at 9:43pm

Ap chemistry
Suppose NaOH is added to the following system when it is at equilibrium. NH3 (aq) + H2O (l) = NH4 (aq) + OH (aq) a) in which direction will the reaction shift after the NaOH is added? b) will this stress increase or decrease the value of the reaction quotient, Q? C) will the ...
Thursday, March 5, 2015 at 10:52am

Math
Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 0.2x - 0.5y = -27.8 0.3x + 0.4y = 68.7
Wednesday, March 4, 2015 at 6:52pm

english work
Over the past ten years more than two dozen athletes have died from the medical condition known as heatstroke. Heatstroke occurs when the body’s internal temperature becomes so elevated that its cooling system begins shutting down. Who is most at risk? Surprisingly, it is...
Wednesday, March 4, 2015 at 5:28pm

Algebra 1 (PLEASE HURRY!!)
{3x+y=-9 {-3x+-2y=12 What is the y-value of the solution to this system of equations? A. -7 B. -3 C. -2 D. -1 I tried them all and I must have did something wrong because none of them worked. Help please!! Thanks.
Wednesday, March 4, 2015 at 2:42pm

algebra
The Kwon family has a rainwater catchment system they use to water their garden. After 3 days without rain, the depth of water in the tanks is 63 inches. After 5 days, the depth is 57 inches. Write an equation in point-slope form describing the situation
Wednesday, March 4, 2015 at 2:25pm

Algebra 1
{3x+y=-9 {-3x+-2y=12 What is the y-value of the solution to this system of equations? A. -7 B. -3 C. -2 D. -1 I tried them all and I must have did something wrong because none of them worked. Help please!! Thanks.
Wednesday, March 4, 2015 at 2:06pm

Math Check
Are my answers correct? Tell whether the system is inconsistent OR dependent. 1.) -7x+6y=-4 14x-12y=8 2.) 3x-y=7 -6x+2y=8 My answers: 1.) inconsistent 2.) Dependent
Wednesday, March 4, 2015 at 1:32pm

History
Which action by the National Assembly was inspired by Enlightenment ideals and the American Revolution? It added a Bill of Rights to the French constitution. It issued the Declaration of the Rights of Man. It set up a federal tax system based on income. It banned organized ...
Wednesday, March 4, 2015 at 1:15pm

Math Help
Are my answers correct? Tell whether the system is inconsistent OR dependent. 1.) -7x+6y=-4 14x-12y=8 2.) 3x-y=7 -6x+2y=8 My answers: 1.) inconsistent 2.) Dependent
Wednesday, March 4, 2015 at 9:06am

Math Check
Hi! Can someone check my answers? Thanks! Directions: Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 1.) 3x-5y=2 2x+5y=13 2.) 3x+11y=4 -2x-5y=9 My answers: 1.) (3,7/5) 2.) (-17,5)
Wednesday, March 4, 2015 at 9:05am

English *Answers Check*
What is acupuncture? 1 Acupuncture is one of the oldest, most commonly used medical procedures in the world. Originating in China more than 2,000 years ago, acupuncture began to become better known in the United States in 1971, when New York Times reporter James Reston wrote ...
Wednesday, March 4, 2015 at 8:04am

phy
calculate the work done on the system when 1.00mol of gas held behind a piston expands irreversibly from a volume of 1.00dm cube to a volume of 10.0dm cube against an external pressure of 1.00 bar
Wednesday, March 4, 2015 at 7:55am

math
You need at least 5 pounds of potatoes and onions. Potatoes cost $4 per pound and onions cost $2 per pound. You can spend at most $18. a) define the variables b) a system of linear inequalities that represents this situation.
Tuesday, March 3, 2015 at 9:34pm

Math Check
Can someone check my answers? Thanks! Tell whether the system is inconsistent OR dependent. 1.) -7x+6y=-4 14x-12y=8 2.) 3x-y=7 -6x+2y=8 My answers: 1.) inconsistent 2.) Dependent
Tuesday, March 3, 2015 at 8:51pm

Math
Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 1.) 3x-5y=2 2x+5y=13 2.) 3x+11y=4 -2x-5y=9
Tuesday, March 3, 2015 at 8:50pm

Physics
Can someone walk me through how to work this? It's worded weirdly and I'm not sure how to solve it. Mass M1= 2.2 kg lies on a frictionless table, pulled by another mass M2= 4.1 kg under the in of Earth's gravity. a) What is in N the net force acting on the system ...
Tuesday, March 3, 2015 at 6:33pm

Science
Human Body & Disease Practice 1) Which of the following effects would you expect if red blood cells were shaped like neurons? :They would not be able to move as easily through capillaries.*** :They would more easily carry out gas exchange in the alveoli. :They would not need ...
Tuesday, March 3, 2015 at 5:26pm

Chemistry
an ideal system absorbed some amount of heat and gas expand and the piston move to 0.4 meter against than the atmospheric pressure. If the cross sectional area of the container is 0.6 meter2. What is the amount of heat absorbed?
Tuesday, March 3, 2015 at 10:20am

Physics
A 1500-kg blue car is travelling south, and a 2000-kg red sports car is travelling west. If the momentum of the system consisting of the two cars is 8000kg.m/s directed at 60 degrees west of south, what is the speed of each car?
Tuesday, March 3, 2015 at 9:53am

Social studies.
Hi I am supposed to write a dialoge essay. The question I have to answer is How did James K polk work to help change the United States. My answer James K polk did many things to help change the United States, these are the things he did. Manifest Destiny: he stretched America ...
Monday, March 2, 2015 at 7:38pm

pre algebra
What value of y makes the following system of equations true? 3x + 6y=12 5x + 6y = 4
Monday, March 2, 2015 at 7:35pm

SOCIAL STDIES HELP!
Clyde is appearing before a judge today because he has missed 30 days of school this year without any medical excuse. Clyde is best described as (1 point) a juvenile delinquent. an unruly child. a deprived child. a guardian ad litem.*** 7. In which of the phases of the ...
Monday, March 2, 2015 at 6:19pm

Writing Skills Part 3
1.Under the Library of Congress system,where would you begin to research for books on the legal system of Greece? A.E B.k C.U [ D.G] 2. You've located three books on a topic you're researching for an essay.The first thing you should do in determining if any of these ...
Monday, March 2, 2015 at 2:13pm

science
I need help checking my answers. the * stands for my answer some of them im not sure about my orginal answer for 2 was b but I changed it to a. 1. which of the following planets is considered a rocky, or terrestrial, planet? venus neptune saturn uranus * 2. which of the ...
Monday, March 2, 2015 at 1:43pm

health
true or false. B cells and H cells are two important cells in the immune system that help fight infection i thinks its false The three lines of defense your body has against disease include all except A. physical and chemical defense B. inflammation C. immune system D. ...
Sunday, March 1, 2015 at 6:10pm

Writing Skills Part 3
1.Under the Library of Congress system,where would you begin to search for books on the legal system of Greece? A.E B.k C.U [D.G] 2.If a source is reasonable,we know A.The information offered up-to-date,factual detailed,and precise. [B.We can trust and believe author.] C.the ...
Sunday, March 1, 2015 at 4:41pm

Physics 1
In recent years, scientists have discovered hundreds of planets orbiting other stars. Some of these planets are in orbits that are similar to that of earth, which orbits the sun (Msun = 1.99 × 10^(30) kg) at a distance of 1.50 × 10^(11) m, called 1 astronomical ...
Sunday, March 1, 2015 at 3:47pm

Malaysian Legal System II
Write a research paper detailing the criminal justice systems of England and Malaysia, and outline any differences in how criminal justice functions in both systems.
Saturday, February 28, 2015 at 10:11pm

physics
A 3.49 kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest. The composite system moves with a speed equal to one-seventh the original speed of the 3.49 mud ball. What is the mass of the second mud ball?
Saturday, February 28, 2015 at 6:58pm

chemistry
Lead iodide is a relatively insoluble compound. It can dissolve from the solid phase into the aqueous phase with a Keq of 0.00027. If the concentration of lead iodide in the aqueous phase 0.125 M, then: a. we need more information to determine the progress of the reaction. b. ...
Saturday, February 28, 2015 at 6:39pm

Physics
Can someone help me with this problem? It requires a lot of visualizing and I've never been great at problems like that. A pair of blocks of mass m1 =29.0 kg, and m2 =58.0 kg, are being pushed on a horizontal surface by a constant forces of magnitude F=87.0 N. The angle &#...
Saturday, February 28, 2015 at 3:21pm

Math
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. (3 pts)
Friday, February 27, 2015 at 10:01pm

Physical Science
The main difference between the internal combustion engine and the diesel engine is that the diesel engine A. does not have a crankshaft. B. does not utilize pistons. C. has no connecting rods. D. has no ignition system. pretty sure its d
Friday, February 27, 2015 at 7:32pm

Health
True or false: The endocrine system only regulates long term changes in the body? A. True *** B. False Which endocrine gland (s) are responsible for the changes associated with puberty? A. Thymus gland B. Reproductive glands *** C. Thyroid gland D. Pancreas If your body is ...
Friday, February 27, 2015 at 1:56pm

Science
Hormones and Homeostasis 1) The human endocrine system is made up of which of the following structures? :Vessels. :Receptors. :Glands.*** :Chambers. 2. Which of the following best describes the function of the endocrine system? :It secretes chemical messengers that travel ...
Friday, February 27, 2015 at 1:16pm

journalism check answers
What is a fixer? a newsroom technician who handles the media outlet's infrastructure a local reporter in a far-flung place who helps foreign correspondents navigate the logistics of reporting in an unfamiliar place a source who "fixes" or misrepresents a ...
Friday, February 27, 2015 at 1:12pm

health
Choosing to eat green vegetables rather than extra macaroni and cheese is a great way to keep the digestive system moving because green vegetables are full of
Friday, February 27, 2015 at 9:43am

Algebra 1
what is the solution of the following system of equations? 1.) 5x + 7y =3 2x = -3y +1
Thursday, February 26, 2015 at 6:56pm

geography
can any one tell me about the command system of mongols?
Thursday, February 26, 2015 at 5:45pm

Science
Processing Information 1. Which of the following sets of terms could be used in a description of the peripheral nervous system? :Motor neuron, interneuron, sensory neuron.*** :Brain, sensory neuron, myelin. :Interneuron, spinal cord, autonomic. :Somatic, brain, spinal cord. 2...
Thursday, February 26, 2015 at 1:49pm

Chemistry! Please Help!
Lime (CaO) is used to prevent SO2 from escaping smokestacks of coal burning power plants by the formation of solid CaSO4•2H2O also known as the mineral gypsum. One of the important reactions in the overall process is the dissociation of CaCO3(s). b. If a 12.0 g sample of ...
Thursday, February 26, 2015 at 10:04am

physics
A mass of 337 g connected to a light spring of force constant 19.4 N/m oscillates on a horizontal, frictionless track. The amplitude of the motion is 5.4 cm. Calculate the total energy of the system. Answer in units of J.
Thursday, February 26, 2015 at 12:13am

Chemistry
A volume of 80.0mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.20 ∘C , what is the mass of the steel bar? Use the following values: specific heat of ...
Wednesday, February 25, 2015 at 11:10pm

Algebra 1
solve each system using elimination. 1.) 6x - 3y =15 7x + 14y =10 Tell whether the system has one solution, infinitely many solutions, or no solution. 1.) 9x +8y =15 9x +8y =30 2.) 5x - 3y =10 10x + 6y = 20
Wednesday, February 25, 2015 at 7:39pm

Algebra 1
Solve each system using elimination. 1.) 5x - y=0 3x + y=24 2.) 3x + 3y =27 x - 3y =-11 3.) 6x +4y =42 -3x + 3y =-6
Wednesday, February 25, 2015 at 7:35pm

chemistry
Suppose you have the following reaction at equilibrium: N2(g) + 3H2(g) = 2NH3(g), ΔH = −22 kcal/mol What changes are expected to occur if the temperature of the system was decreased. You may select multiple answers. The concentration of NH3(g) would decrease The ...
Wednesday, February 25, 2015 at 6:58pm

chemistry
How is the reaction quotient used to determine whether a system is at equilibrium? The reaction is at equilibrium when Q > Keq. At equilibrium, the reaction quotient is undefined. The reaction quotient must be satisfied for equilibrium to be achieved. The reaction is at ...
Wednesday, February 25, 2015 at 2:51pm

physics
An employer found out that his worker has been stealing money from his business for some time. though he has not caught him red handed, the overwhelming circumstantial evidences leaves no doubt at all about the theft. He is the only worker and the money gets missing only after...
Wednesday, February 25, 2015 at 9:30am

physics
A 0.125 kg mass is attached to a spring and undergoes simple harmonic motion with a pe- riod of 0.41 s. The total energy of the system is 2.5 J. Find the amplitude of the motion. Answer in units of m.
Tuesday, February 24, 2015 at 11:11pm

Science
Describe the pattern of regional surface winds around the center of a low pressure system in the northern hemisphere?
Tuesday, February 24, 2015 at 6:21pm

Algebra 1
Tell whether the system has one solution, infinitely many solutions, or no solution. 1.) y= 1/2x +3 2y -x =6 2.) x= -7y + 34 x+ 7y =32
Tuesday, February 24, 2015 at 6:20pm

Algebra 1
solve each system by substitution. check your answers 4y +3 = 3y +x and 2x +4y =18
Tuesday, February 24, 2015 at 6:10pm

Socials
A few days ago I posted a question about an immigration diary during the great migration period(I will link it in a comment below) in which Ms Sue and Reed replied with some tips- thank you. I am starting to write some of the diary and I still have a few questions that I have ...
Tuesday, February 24, 2015 at 1:21am

English
A food chain is part of a bigger system called a food web. That web links the living things in an ecosystem. The herbivores in that system depend on the plants. If the plants are removed, the herbivores cannot survive. Then the carnivores, the animals that eat other animals, ...
Monday, February 23, 2015 at 7:27pm

chemistry
An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 6365 J. What is the specific heat of the gas?
Monday, February 23, 2015 at 7:25pm

geography
command system of mongols
Monday, February 23, 2015 at 7:16pm

pleasse check social studies
The type of jurisdiction to consider the decisions of lower courts is known as _______________. (1 point) appellate original limited juvenile*** 2. Which of the following courts would hold jurisdiction over the violation of a parking ordinance in Atlanta? (1 point) superior ...
Monday, February 23, 2015 at 1:18pm

SOCIAL STDIES HELP!
Georgia's Government and Law Are my ansers right? *** Which of the following statements about the state executive branch system of departments and agencies are true? Mark all that apply. (2 points) The system is comparable in purpose to the legislative committee system in ...
Monday, February 23, 2015 at 12:44pm

geography
command system of mongols
Sunday, February 22, 2015 at 9:23pm

Algebra
Write a detailed solution to the system x 1 3y # 9 y # 22x 1 6, where x $ 0 and y $ 0. Graph the system to show all possible solutions.
Sunday, February 22, 2015 at 9:06pm

Chemistry
A piece of iron (Cp = 0.450 J/(gi°C)) that has a mass of 21.5 g and an initial temperature of 100.0°C is submerged in X g of water (Cp = 4.184 J/(gi°C)) at 20.0°C. The temperature of the system (iron and water) changes to 21.4°C. What is the value of X?
Sunday, February 22, 2015 at 7:20pm

Chemistry
Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel. After 15 minutes, the concentration of SO2Cl2 is 45.5 μg/mL. You will ...
Sunday, February 22, 2015 at 7:12pm

Anthropology
Ms.Sue, I need your assisting please. Can you please give me advice on this Chipolatta Culture Music, I need you. Thank you. The Chipolatta music instruments consist of things like, drums, flutes, and other percussion instruments including their voices which can be heard ...
Saturday, February 21, 2015 at 3:03pm

physics
Two arrows are fired horizontally with the same speed of 31.8 m/s. Each arrow has a mass of 0.149 kg. One is fired due east and the other due south. Find the magnitude of the total momentum of the two arrow system in kg-m/s. (Hint: How do you combine vector arrows at right ...
Saturday, February 21, 2015 at 2:28pm

ap physics
A 0.461 kg mass is attached to a spring and executes simple harmonic motion with a pe- riod of 0.59 s. The total energy of the system is 2.4 J. Find the force constant of the spring
Saturday, February 21, 2015 at 1:21pm

Business math
The clarkdell school system has three schools. School #1 has 500 students School #2 has 600 students School #3 has 400 students What part of a $15,000 allocation will go to school #2? 15,000 divide by 3= $5,000 Will you check my answer?
Saturday, February 21, 2015 at 12:50pm

Chemistry AP
Hey Bob, What is the pH at the point during a titration when 20 mL of 0.200 M HCl has been added to 30 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10−5 for NH3. Answer in units of pH. I've gone about getting the mmol of HCl and NH3, getting ...
Friday, February 20, 2015 at 10:30pm

chemistry
The Russian Mir space station used a chemical oxygen generator system to make oxygen for the crew. The system ignited a tube of solid lithium perchlorate (LiClO4) to make oxygen and lithium chloride (LiCl): LiClO4 (s)  2O2 (g) + LiCl (s) If you have 500 g of LiClO4, ...
Friday, February 20, 2015 at 1:48pm

Health
3. Which of the following body systems works with the circulatory system to exchange oxygenand carbon dioxide? (1 point) digestive nervous respiratory urinary
Friday, February 20, 2015 at 8:58am

Health
1. Which of the following is the minimum level of structure needed to perform the function of waste removal? (1 point) body system tissue cell organ
Friday, February 20, 2015 at 8:56am

Health
after neglecting to look before diving into the pool, your friend hits his head on a rock and disrupts his __________ causing him to be paralyzed from his waist down A. cardiovascular system*** B. circulatory system C. nervous system D. endocrine system Please check
Thursday, February 19, 2015 at 7:07pm

Science please help
It is important that you maintain a healthy weight both for your overall health and so that your respiratory system can A. deliver oxygen more adequately B. pump blood more forcefully from the heart C. keep capillaries constricted D allow for smaller amounts of air to enter ...
Thursday, February 19, 2015 at 6:44pm

Algebra 1
Solve the system of equations. y=2x^2-3 y=3x-1
Thursday, February 19, 2015 at 5:40pm

physics
A block of wood with a mass of 1300g is sitting on a horizontal tabletop. The coefficient of kinetic friction between the block and table is µk=0.74.A rifle bullet with a mass of 39g is fired horizontally into the block at a sped of 290m/s and stops inside the block. a-...
Thursday, February 19, 2015 at 5:08pm

Chemistry
A balloon filled with 1.35 atm of dimethyl ether gas and 5.25 atm of oxygen gas at 27 °C has an initial volume 2.00L They react according to the following reaction: C2H6O (g) + 3 O2 (g) -> 2 CO2 (g) + 3 H2O (g) The system is allowed to back cool down to 27 °C ...
Thursday, February 19, 2015 at 3:16pm

math
A group of 148 people is spending five days at a summer camp. The cook ordered 12 pounds of food for each adult and 9 pounds of food for each child. A total of 1410 pounds of food was ordered. Write a system of equations that describes this situation, and define your variables...
Thursday, February 19, 2015 at 11:11am

Chemistry
Strong base is dissolved in 535 mL of 0.200 M weak acid (Ka = 3.16 × 10-5) to make a buffer with a pH of 4.04. Assume that the volume remains constant when the base is added. HA (aq)+ OH^-(aq) -> H2O(l) + A^-(aq) Calculate the pKa value of the acid and determine the ...
Thursday, February 19, 2015 at 4:19am

Science
Removing Waste 1) Which of the following best explains why it is necessary for the body to eliminate waste? :To allow the body to maintain a certain size. :To keep the body’s internal environment in balance.*** :To make room for nutrients coming in. :To reduce unpleasant ...
Wednesday, February 18, 2015 at 5:19pm

Health
Regular exercise stimulates ___ which keeps the skeletal system moving to assist digestion and excretion. A.)peristalsis B.)urea C.)digestion D.)villi
Wednesday, February 18, 2015 at 2:30pm

Accounting
Cherry Hill Glass Company employs a normal costing system. The following information pertains to the year just ended. • Total manufacturing costs were $1,420,000. • Cost of goods manufactured was $1,391,000. • Applied manufacturing overhead was 20 percent of ...
Wednesday, February 18, 2015 at 1:59pm

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