Thursday
April 24, 2014

Homework Help: Computers: Operating Systems

Recent Homework Questions About Operating Systems

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Chemistry
At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.100 M and [NO]=0.500 M. The balanced chemical equation is N2+O2<--->2NO. If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after ...
Tuesday, April 2, 2013 at 3:02pm

Physiology
How does nervous system control the activity of writing
Tuesday, April 2, 2013 at 2:13am

Math
1. The function r(w) = 2aw-2 + b + c where a, b and c are constants. w You are given that r(1) = 5; r’(4) = 12 and r′’(2) = 18. By substituting for w in the above function and its derivatives or otherwise, show that the three given function values give rise to ...
Monday, April 1, 2013 at 9:08pm

Physics
A spring with a spring constant of 35.0 N/m is attached to different masses, and the system is set in motion. What is its period for a mass of 2.4 kg? Answer in units of s
Monday, April 1, 2013 at 8:00pm

SST
'SINGLE TRANSFERABLE VOTING SYSTEM OF PROPORTIONAL REPRESENTATION IS USED FOR THE ELECTION OF'
Monday, April 1, 2013 at 8:37am

physics
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that ...
Monday, April 1, 2013 at 8:08am

physics
Two particles, each of mass 3.00 kg and speed 5.41 m/s, travel in opposite directions along parallel lines separated by a distance 3.15 m. What is the magnitude of L, the angular momentum of the two-particle system around a point midway between the two lines?
Monday, April 1, 2013 at 8:06am

chemistry
what is the crystal system of the crystal structure of cesium chloride
Monday, April 1, 2013 at 6:21am

managerial acct
Need help with this problem. Please show me how to work this one: The level of inventory of a manufactured product has increased by 8,000 units during a period. The following data are also available Unit manufacturing costs of the period: Variable: $24 Fixed: $10 Unit ...
Sunday, March 31, 2013 at 11:24pm

Algebra
A company has two printers. Printer A prints a pages per minute, and Printer B prints b pages per minute. When Printer A prints for 3 minutes and Printer B prints 5 minutes, a total of 70 pages are printed. When Printer A prints for 6 minutes and Printer B prints for 9 minutes...
Sunday, March 31, 2013 at 10:11pm

Algebra
Using the substitution method, what is the value of a in the solution to the system of equations below? a=3b+7 4a+9b=70
Sunday, March 31, 2013 at 10:04pm

POL
Policy making in the United States is made through incrementalism because (Points : 1) the Constitution prohibits grand sweeping steps. the Madisonian system prevents grand sweeping action. incrementalism is more efficient. incrementalism produces the best possible policy .
Sunday, March 31, 2013 at 6:09pm

Statistics
Suppose the U.S. president wants an estimate of the proportion of the population who support his current policy toward revisions in the Social Security system. The president wants the estimate to be within 0.028 of the true proportion. Assume a 99 percent level of confidence. ...
Sunday, March 31, 2013 at 3:10pm

algebra
directions Write a system of inequalities for the shaded region described. The shaded region is a rectangle with vertices at (2,1)(2,4)(6,4)
Saturday, March 30, 2013 at 9:23pm

human body
a friend has been taking over-the-counter vitamins and minerals because he heard that some of them can boost energy levels and immune system function. he begins experiencing fever, nausea, and recurrent kidney stones. based on these symptoms, what might you expect the problem ...
Saturday, March 30, 2013 at 3:01pm

Physics
The load-bearing piston in a certain hydraulic system has an area 35 times as large as the input piston. If the larger piston supports a load of 9000 N, how large a force must be applied to the input piston?
Saturday, March 30, 2013 at 2:59pm

math
Many scholars have set some standards to judge a system for taxation for its validity. How can you decide if a tax is good or bad
Saturday, March 30, 2013 at 12:04pm

physics
A pail with water (mass = 15 kg) is raised using a pulley system, if the pail accelerates upward at a rate of 1.45 m/s2, how much is the tension on the rope?
Saturday, March 30, 2013 at 3:47am

Chemistry
When 50.0ml of 1.00M HCl is titrated with 1.00M NaOH, the pH increases. calculate the difference in pH of the system when you add 49.99ml NaOH and 50.01ml of NaOH. Please work out detailed steps.
Friday, March 29, 2013 at 2:47pm

algebra
hola necesito ayuda con mi tarea pero no entiendo como aserlo porque esta en ingles which ordered pair is the solution set of the following system of inequalities? y< 1/2x + 4 y> and equal to -x + 1 f:(-5,3) g:(0,4) h:(3,-5) j:(4,0)
Friday, March 29, 2013 at 11:54am

AP CHEMISTRY
C(s) + H2O(g) ⇌ CO(g) + H2 ΔH>0 For the system above at equilibrium, which changes will increase the amount of H2(g)? I. Adding C(s) II. Increasing the volume of the container III. Increasing the temperature The answer is II and III. I understand everything ...
Friday, March 29, 2013 at 12:57am

Algebra
Suppose you buy flour and cornmeal in bulk to make flour tortillas and corn tortillas flour costs 1.50lb cornmeal costs 2.50lb you want to spend less than 9.50 on flour and cornmeal and you need at least 4lb altogether a) write a system of inequalities that describes this ...
Thursday, March 28, 2013 at 11:00pm

Reiny please help!Algebra
I need help with these! I got B for 1. C for 2. and D for 3. Thanks for the help! 1.) Find the values of a, b, and c that will make the statement true. [5 a -2] [5 102] [3 4 –b] = [-3 -4 3] [2c 5 9] [-2 5 9] a.) 8R1-R2--> =R2 b.) -8R1-R2 -> =R2 c.) –8R1 +R2 -&...
Thursday, March 28, 2013 at 9:11pm

Math
All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion: 1. List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or ...
Thursday, March 28, 2013 at 7:29pm

Algebra Multiple Choice help!!
I need help with these! I got B for 1. C for 2. and D for 3. Thanks for the help! 1.) Find the values of a, b, and c that will make the statement true. [5 a -2] [5 102] [3 4 –b] = [-3 -4 3] [2c 5 9] [-2 5 9] a.) 8R1-R2--> =R2 b.) -8R1-R2 -> =R2 c.) –8R1 +R2 -&...
Thursday, March 28, 2013 at 5:35pm

Algebra Multiple choice!!! Help
1.) Find the values of a, b, and c that will make the statement true. [5 a -2] [5 102] [3 4 –b] = [-3 -4 3] [2c 5 9] [-2 5 9] a.) 8R1-R2--> =R2 b.) -8R1-R2 -> =R2 c.) –8R1 +R2 -> =R2 d.) 8R1-R2 -> =R2 2.) Solve the system by triangularizing the augmented ...
Thursday, March 28, 2013 at 11:53am

Algebra Multiple choice revised!! HELP
I have a few questions I need help with! Please explain if my answer was not right how you got to it. I got 1.) B 2.) A 3.) C 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in ...
Thursday, March 28, 2013 at 11:29am

Algebra multiple choice!
I have a few questions I need help with! Please explain if my answer was not right how you got to it. I got 1.) B 2.) A 3.) C 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in ...
Thursday, March 28, 2013 at 10:31am

Algebra help!
1.) Solve the system by triangularizing the augmented matrix and using back substitution. -x-y+z=1 x-y-4z=-7 4x+y+z=6 2.) Perform the indicated row operation, then write the new matrix. -4 4 | 4 9 -6 | 5 -2R1+ R2 ---> R2 3.) Solve the system by triangularizing the augmented...
Thursday, March 28, 2013 at 7:42am

Algebra help needed please!!
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve the system by ...
Thursday, March 28, 2013 at 7:38am

physics
A pail with water (mass = 15 kg) is raised using a pulley system, if the pail accelerates upward at a rate of 1.45 m/s^2, how much is the tension on the rope?
Thursday, March 28, 2013 at 2:27am

Physics
Two astronauts, each having a mass of 61.9 kg, are connected by a 14.7 m rope of negligible mass. They are isolated in space, orbiting their center of mass at speeds of 5.57 m/s. Calculate the magnitude of the initial angular momentum of the system by treating the astronauts ...
Wednesday, March 27, 2013 at 10:47pm

chemistry
H2 + CO2 <--> H2O + CO if there were something that were added to this system to absorb the CO2, where would the equilibrium shift? Please don't just give the answer, explain as well, thanks :)
Wednesday, March 27, 2013 at 9:59pm

Algebra
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve the system by ...
Wednesday, March 27, 2013 at 9:39pm

Algebra help!
Please help and I would appreciate an explanation as to how you got to the answer. 1.) Solve the system by triangularizing the augmented matrix and using back substitution. 0.09x-0.15y+0.39 -0.18x+0.35y=-0.88 2.) Solve the system by triangularizing the augmented matrix and ...
Wednesday, March 27, 2013 at 9:36pm

Physics
Attempting to stop on a slippery road, a car moving at 90 km/h skids across the road at a 30 angle to its initial motion, coming to a stop in 3.8s. Determine the average acceleration in m/s^2, using a coordinate system with the x-axis in the direction of the car's original...
Wednesday, March 27, 2013 at 9:31pm

Algebra help
I need to solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the soloution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16
Wednesday, March 27, 2013 at 8:54pm

Math
Hi i'm having trouble with a question. it states During the Summer you take 2 part time jobs. The first job pays $5 per hour. The 2nd Job pays $8 per hour. You want to earn at least $150 a week and work 25 hours or less a week. Write a system of inequalities that model the...
Wednesday, March 27, 2013 at 8:03pm

chem
consider the system I2(g)+262 KJ ¡ê 2 I (g) at 1000¡ÆC. In which direction, if any, will the reaction proceed if gaseous iodine atoms are added, the system is compressed, the temperature is decreased, a catalyst is introduced, and gaseous idodine atoms ...
Wednesday, March 27, 2013 at 3:48pm

Chemistry
A horizontal piston contains 34kg of water that is saturated at 36ºC. Heat is transferred to the water until 80% of the water vaporizes If the piston moves very slowly, calculate the work done by surroundings on the system during this process.
Wednesday, March 27, 2013 at 3:36pm

Physics
At the State Fair you see people trying to win a prize at a game booth. They are sliding a metal disk shaped like a puck up a wooden ramp so that it stops in a marked zone near the top of the ramp before sliding back down. You estimate that you can slide the 'puck' at ...
Tuesday, March 26, 2013 at 7:42pm

chemistry
85.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar? Specific heat of water = 4.18 Specific heat of steel = 0.452 My answer was 32.752. I rounded ...
Tuesday, March 26, 2013 at 1:37pm

chemistry
85.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar? Specific heat of water = 4.18 Specific heat of steel = 0.452 My answer was 32.752. I rounded ...
Tuesday, March 26, 2013 at 1:34pm

account
For both cases, show what each firm would report in its annual statement of profit and loss and other comprehensive income under the: a)Cash Basis b)Accrual Basis CASE 1 During 2012 Gangnam Marketing earned revenues of $500,000 on account. Gangnam collected $510,000 from the ...
Monday, March 25, 2013 at 12:28am

Algebra
Use a graphing calculator or a computer to graph the system of inequalities. Give the coordinates of each vertex of the solution region. 5x-3y is greater than or equal to -7 x-2y is greater than or equal to 3 3x+y is greater than or equal to 9 x+5y is less than or equal to 7 I...
Sunday, March 24, 2013 at 8:10pm

Algebra
At a portrait studio, three 8- by 10-inch pictures plus two 5- by -inch pictures cost $52, and two 8- by 10-inch pictures plus 5- by 7-inch pictures cost $40. This situation can represented by the system of equations below, where x is the cost, in dollars, of each 8- by 10-...
Sunday, March 24, 2013 at 7:49pm

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 7:12pm

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 6:16pm

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 6:15pm

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 1:04pm

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 1:03pm

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 12:32pm

Physics
A charge of q1=1×10−6 C is located at corner A of an equilateral triangle. A charge q2=4×10−6 C is located at corner B and a charge of q3=7×10−6 C is located at corner C. The distance AB=0.46 m (the other two sides of the triangle are the ...
Sunday, March 24, 2013 at 5:39am

Earth and Space Science
Put the following astronomical bodies in order from largest to smallest: a. Universe b. Galaxy c. Moon d. Planet e. Solar System f. Comet
Saturday, March 23, 2013 at 9:47pm

algebra 2nd try
I need to simplify this 2/∛49 . I figured it out to be (2∛((49)^2))/49 but the system I added my answer to says this is incorrect. Please help me! Thanks anyone.
Saturday, March 23, 2013 at 5:33pm

Physics
Lighting strike: Storm clouds build up large negative charges that dwell in a charge center. Suppose a storm cloud has -25 C in a charge center located 10 km above the ground. The negative charge center attracts an equal amount of positive charge that is spread on the ground ...
Friday, March 22, 2013 at 11:46pm

algebra
Simplify 2/root 3(49) I solved it as 2 root 3(49) over 49. the system that I entered it in says this is incorrect. Help I need to understand how to do this problem with steps. I am so confused. Thanks
Friday, March 22, 2013 at 10:28pm

Statistics
A car rental agency currently has 41 cars available, 28 of which have a GPS navigation system. Two cars are selected at random from these 41 cars. Find the probability that both of these cars have GPS navigation systems
Friday, March 22, 2013 at 10:06pm

accouting
- Hanna Manufacturing – Due Hanna Manufacturing manufactures components for the farming industry and is considering replacing its existing equipment with new and more high technology machinery, despite the fact that its existing eq uipment is only a few years old and ...
Thursday, March 21, 2013 at 6:37pm

Physics
A series RCL circuit has a resonant frequency of 1530 Hz. When operating at a frequency other than 1530 Hz, the circuit has a capacitive reactance of 5.0 Ω and an inductive reactance of 33.0 Ω. What is the value of L? (Answer in H) What it the value of C? (Answer in F)
Thursday, March 21, 2013 at 3:08pm

Algebra Multiple Choice
Hello, This is the last of questions I have for my practice assignment. Again I will put what I got. Thanks for your help. 1.) Solve the system using substitution. Write answer as an ordered pair. 4x+2y=8 -5x-2=y A.) First equation (-2,8) B.) Second equation (-2,8) I put A 2...
Thursday, March 21, 2013 at 9:22am

Algebra-Multiple choice
Hello, I have some practice math I'm working through and I'm unsure about the answer. I will also put what I got. Thanks for the help. 1. Solve using any method and identify the system as consistent, inconsistent, or dependent. -2x+y=8 2x+2y=-8 A.) (-4,0); consistent/...
Thursday, March 21, 2013 at 9:13am

Finance
The most recent financial statements for Retro Machine, Inc., follow. Sales for 2010 are projected to grow by 20 percent. Interest expense will remain constant; the tax rate and the dividend payout rate will also remain constant. Costs, other expenses, current assets, fixed ...
Wednesday, March 20, 2013 at 11:51pm

HELP
A brass rod with a length of 10.0 cm is placed end to end with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100°C and a cold temperature of 10.0°C. The coefficient of thermal conductivities of the brass and the ...
Wednesday, March 20, 2013 at 7:38pm

science
How does the hierarachical organization of organisms work within a system?
Wednesday, March 20, 2013 at 7:33pm

Physics
Heat flow question help?A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100°C and a cold temperature of 10.0°C. The coefficient of thermal conductivities of...
Wednesday, March 20, 2013 at 6:48pm

Physics
Heat flow question help?A brass rod with a length of 30.0 cm is placed side by side with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100°C and a cold temperature of 10.0°C. The coefficient of thermal conductivities of...
Wednesday, March 20, 2013 at 6:45pm

AP Physics
Two particles, each of mass m and speed v, travel in opposite directions along parallel lines separated by a distance d. (a) Find an expression for the magnitude L of the angular momentum of the two-particle system around a point midway between the two lines. Use m for the ...
Wednesday, March 20, 2013 at 2:53pm

statistics
The program plans to acquire a total of 600 end items costing $570 million over a five-year period. The first production contract is to be awarded in FY04. The number of items to be procured (not delivered) each year and their estimated cost (in then-year dollars) is shown ...
Wednesday, March 20, 2013 at 12:02pm

Statistics
A market research company employs a large number of typists to enter data into a computer database. The time taken for new typists to learn the computer system is known to have a Normal distribution with a mean of 2.167 hours and a standard deviation 20 minutes. A candidate is...
Tuesday, March 19, 2013 at 5:58pm

chemistry
liquid water + liquid oil + water vapor how many phases does this system have? If it's 3 ... why can't we say it's 2 taking in consideration the liquid part and the vapor part "states of matter also called phases" ... Please try to explain this concept if...
Tuesday, March 19, 2013 at 2:02pm

physics
A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley and then to ...
Monday, March 18, 2013 at 10:06pm

QSO 510
During the dinner hour, the distribution of the inter-arrival time of customers at a restaurant is estimated to be as shown below. The mode of payment and the service times of the cash and credit card customers are shown in the following tables. Complete the tables and ...
Monday, March 18, 2013 at 9:37pm

LAN
1. System A consists of a single ring with 100 stations, one per repeater. System B consists of four 25 stations rings linked by a bridge. If the probability of a link failure is , a repeater failure is , and a bridge failure is , derive an expression for parts (a) to (d). a) ...
Monday, March 18, 2013 at 7:14pm

Physics
A set of crash tests consists of running a test car moving at a speed of 12.2 m/s (27.3 mi/hr) into a solid wall. Strapped securely in an advanced seat belt system, a 75.0 kg (165 lbs) dummy is found to move a distance of 0.630 m from the moment the car touches the wall to the...
Monday, March 18, 2013 at 5:34pm

MATH
The life cycle cost of the BLUEBIRD system is $600 million. The program acquisition cost is $400 million and the development cost is $150 million. There are no facilities costs. What is the procurement cost of the BLUEBIRD system? $200 million $150 million $250 million $100 ...
Monday, March 18, 2013 at 1:32pm

Physics
Some rental cars have a GPS unit installed, which allows the rental car company to check where you are at all times and thus also know your speed at any time. One of these rental cars is driven by an employee in the company’s lot and, during the time interval from 0 to 10...
Monday, March 18, 2013 at 12:09pm

Chemistry
A reaction mixture of 4.0 mL of 0.002 M SCN- and 5.0 mL of 0.002 M Fe3+ is diluted to 10.0 mL with 0.1 M HNO3 to form the blood-red FeNCS2+ complex. The equilibrium molar concentration of the FeNCS2+ determined from a standardization curve is 1.5x10^-4 mol/L. Calculate, in ...
Monday, March 18, 2013 at 11:48am

physics
A ball whirls around in a vertical circle at the end of a string. The other end of the string is fixed at the center of the circle. Assume that the total energy of the ball-Earth system remains constant. (a) What is the tension in the string at the bottom? (Use the following ...
Monday, March 18, 2013 at 1:10am

physics (Newton's Laws)
Please help, A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley...
Sunday, March 17, 2013 at 9:27pm

SOC 313
10. An important consideration of neurological conditions is that: (Points : 1) for many neurological conditions, available treatment is plentiful and directed mainly toward curing the disease. the rate of progression and degree of loss of functional capacity in many ...
Sunday, March 17, 2013 at 9:03pm

SOC 313
1. Motor and perceptual consequences of brain damage affect: (Points : 1) visual-spatial relations; vision and hearing; and bowel and bladder function memory; attention and concentration; and judgment speech and language personality change and affective response 2. Stephanie ...
Sunday, March 17, 2013 at 9:01pm

Statistics
Problem During the dinner hour, the distribution of the inter-arrival time of customers at a restaurant is estimated to be as shown below. The mode of payment and the service times of the cash and credit card customers are shown in the following tables. Complete the tables and...
Sunday, March 17, 2013 at 1:15am

physics
A Fletcher's trolley is set up over a cliff. If m1 = 40.5 kg (on top of the cliff) and m2 = 18.5 kg (hanging over the edge), what coefficient of friction is needed for the system not to move?
Sunday, March 17, 2013 at 12:54am

Physics
Sewage at a certain pumping station is raised vertically by 5.57 m at the rate of 1 860 000 liters each day. The sewage, of density 1 050 kg/m3, enters and leaves the pump at atmospheric pressure and through pipes of equal diameter. (a) Find the output mechanical power of the ...
Saturday, March 16, 2013 at 4:40pm

Health Care Man.
Which answer below includes the major glands ofo the endocrine system? A. Pituitary,thymus,thyroid,parathyrod,adre​nal,pineal B. Pituitary,thymus,thyroid,kidney,adrenal,​ovaries C.Pituitary,thyroid,parathyroid,adrenal,​gall bladder,pineal D. Pituitary,thymus,...
Saturday, March 16, 2013 at 12:47pm

English
1. On the documentary Sicko,Michael Moore spoke out the truth about our healthcare system. 2. In the documentary Sicko,Michael Moore spoke out the truth about our healthcare system. Which one would be correct? Using on or in?
Friday, March 15, 2013 at 1:53pm

math
How do you write a learning assessment system assignment
Friday, March 15, 2013 at 11:13am

physics
0.30-kg block is sliding on a smooth horizontal surface at 2.5 m/s, heading towards a light spring that is in equilibrium (not stretched or compressed). The spring constant is 3000 N/m. What is the total kinetic energy in the system in Joules?
Friday, March 15, 2013 at 9:39am

history
word bank: nullification, caucus, secede, suffrage, spoils system, pet bank, nomination convention, states' rights Choosing presidential candidates became more democratic when political parties began to hold __________________ that included delegates from each state.
Friday, March 15, 2013 at 9:28am

Separation process
Oil used to absorb benzene from gas is to be stripped with steam at P = 1atm to recover the benzene.Equlibrium at the operating temperature is approximated using Henry's Law.When the oil contains 10%mol of benzene,the oil's partial pressure is 5.07kPa.The oil is ...
Friday, March 15, 2013 at 4:23am

health Ms. Sue please
1. The body's functions are slowed when alcohol reaches where? (1 point) The stomach The heart The liver The brain 2. Which statement is NOT true? (1 point) Regular use of alcohol can lead to addiction. Alcoholism can be cured. Someone cannot cause someone else to drink. ...
Thursday, March 14, 2013 at 9:51pm

physics
A light spring with a spring constant of 105.0 N/m rests vertically on the table, as shown in (a) below. A 2.05 g balloon is filled with helium (0°C and 1 atm pressure) to a volume of 4.64 m3 and connected to the spring, causing the spring to stretch, as shown in (b) below...
Thursday, March 14, 2013 at 8:56pm

calculus
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 dollars per year, where t is the number of years since the end of 1999. Determine the accumulated change in annual ...
Thursday, March 14, 2013 at 8:55pm

Science help.
1. The ___ is the outer, thinnest layer of your skin, which houses sweat pores. (1 point) epidermis dermis fatty layer hair 2. One of the purposes of sweat glands is to release waste products, such as water and _____. (1 point) blood dirt sugar salt 3. Which of the following ...
Thursday, March 14, 2013 at 6:33pm

calculus
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 dollars per year, where t is the number of years since the end of 1999. Determine the accumulated change in annual ...
Thursday, March 14, 2013 at 12:19pm

Chemistry
48g of ice at its melting point is heated with steam at its condensation point. The final temperature of the system is 50 degree Celsius. How much steam was used to melt the ice? q=(48g)(1mol/18g)(50-0C)(0.97kcal/mol*C)​ = 129kcal Not sure where to go from here (or if ...
Thursday, March 14, 2013 at 12:38am

computer science
You are required to use the Account class to simulate an ATM machine. Create ten accounts in an array with id 0, 1, 2 ...9, and initial balance $50. The system prompts the user to enter an id. If the id is entered incorrectly, ask the user to enter a correct id. Once an id is ...
Wednesday, March 13, 2013 at 10:39pm

Ms. Sue please science
14. The ______ system uses all of your body’s senses to help maintain homeostasis is the answer control?
Wednesday, March 13, 2013 at 10:14pm

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 9:31pm

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