Friday

September 4, 2015
**science**

The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to find when the ...
*Saturday, March 21, 2015 by Isabel*

**science**

Two insulated beakers contain different amounts of identical liquids. Beaker A contains twice as much liquid as Beaker B. The temperature of Beaker A is 80°C. The temperature of Beaker B is 40°C. An aluminum rod connects the beakers, and the system is left alone for ...
*Saturday, March 21, 2015 by Isabel*

**science**

The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to find when the ...
*Saturday, March 21, 2015 by Isabel*

**Math**

Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y < 6 x > 0 ...
*Saturday, March 21, 2015 by Heather*

**mathematical physics**

Determine the scale factors for an orthogonal coordinate system ( s, t, v ) whose coordinates are related to the cartesion by following equations: x = 2st:, y = s^2-t^2:, z = v Also write down an expression for the square of the arc element.
*Saturday, March 21, 2015 by gourav *

**social studies **

1.__________ introduced Europeans to Muslim inventions, such as the astrolabe that helped sailors navigate the seas. a)the Crusades,*** b)the Reconquista c)the Vikings d)the Magana Carta 3.king granted land to lords who in turn granted land to knights under the system called a...
*Saturday, March 21, 2015 by #school*

**social studies**

1.__________ introduced Europeans to Muslim inventions, such as the astrolabe that helped sailors navigate the seas. a)the Crusades, b)the Reconquista c)the Vikings d)the Magana Carta *** 2.In Athens the system of government became a direct democracy, in which the people ...
*Saturday, March 21, 2015 by need help real quick*

**ap 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
*Thursday, March 19, 2015 by amar*

**Math check please**

1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing the square. if ...
*Thursday, March 19, 2015 by Kendra*

**S.S**

Which question would best help you write a report regarding the changes to the political system during Jackson's presidency? A. How did Andrew Jackson react to the results of the election of 1824? B. When did Andrew Jackson decide to run for president? C. Did Andrew ...
*Thursday, March 19, 2015 by Anonymous *

**SOCIAL STDIES HELP!sss**

1. Which of the following contributed to the rise of the Populist Party? (1 point) a sense of discontent and inequality felt by farmers and laborers an agreement with Republican politics a need to keep government exactly as it was a desire to see Democrats be voted out of ...
*Thursday, March 19, 2015 by XenaGonzalez*

**Math**

Solve the following system of equations. Then, write the final answer in (x, y, z) form. -12x+y-x=-20 -2x-4y+2z=10 x+2y+2z=25
*Thursday, March 19, 2015 by Giselle*

**business math**

Stereo Inc. sells a stereo system for $500 down and monthly payments of $60 for the next 4 years. If the interest rate is 1.75% per month, find: a) The cost of the stereo. b) The total amount of interest paid.
*Wednesday, March 18, 2015 by Alex*

**Math**

Hi! I need help with this question. Thanks! Directions: Try to find the number of solutions for the following system of equations then determine if it is Dependent, Inconsistent or Consistent. -3x-2y=6 x=-2-2/3y
*Wednesday, March 18, 2015 by Kevin*

**Math**

Solve these system of equations. Then, write the final answer in (x,y) form. 1.) x-y=7 3x+2y=6 2.) 2x-4y=3 -3x+5y=1
*Wednesday, March 18, 2015 by Hope*

**Art**

Chinese artists often express their philosophies using calligraphy. Which is the best definition of philosophy? A. a complex idea B. a religion C. a way of practicing creativity D. a system of guiding principles I think its C. Please answer as soon as possible.
*Wednesday, March 18, 2015 by Student*

**journalism **

Which of the following is the lead? "On Wednesday, the Department of Justice released the utterly devastating results of its investigation of the Ferguson Police Department." "When people say “Black Lives Matter,” they’re not referring only to the...
*Wednesday, March 18, 2015 by jimm*

**Physics**

Two systems are formed from a converging lens and a diverging lens, as shown in parts a and b of the drawing. (The point labeled "Fconverging" is the focal point of the converging lens.) An object is placed inside the focal point of lens 1 at a distance of 7.70 cm to...
*Wednesday, March 18, 2015 by Damien O' Connell*

**chemistry **

1. Ideal gas particles: A. have no mutual attraction and no individual volume. B. have no mass or volume. C. have no odor and no color. D. have no density and do not form bonds. Is it A? 2. Why does the density of gas in a hot air balloon decrease as the gas is heated? A. The ...
*Wednesday, March 18, 2015 by Cortney*

**Vectors**

Can you please explain how to answer this? What is a solution for the following system? x-4y+z=2 and -x+4y-2z=8 a) x=4s+12, y=s, z=-10 b) x=s+4, y=3s, z=-4 c) x=2s+5, y=s, z=-12 d) x=s, y=4s, z=-12
*Tuesday, March 17, 2015 by Sara*

**Math**

Directions: Solve the following system of inequalities. 1.) 3x + 2y < 6 x > 0 y > 0 2.) 2x^2 + y ≥ 2 x ≤ 2 y ≤ 1
*Tuesday, March 17, 2015 by Gloria*

**physics**

Two ice skaters hold hands and rotate, making one revolution in 2.4 s. Their masses are 60 kg and 70 kg, and they are separated by 1.5 m. Find the angular momentum of the system about their center of mass.
*Monday, March 16, 2015 by Anonymous*

**Physical Chemistry**

If a 30g piece of ice at -5C is immersed in 125mL of water at 25C in an insulated container... A. Determine the final temperature and final composition of the system B. Determine the entropy changes of the ice and the water and the overall entropy change of this process.
*Monday, March 16, 2015 by Jo*

**calculus**

a 50 m long chain hangs vertically from a cylinder attached to a winch. assume there is no friction in the system and that the chain has a density of 5 kg/m. how much work is required to wind the entire chain onto the cylinder using the winch
*Monday, March 16, 2015 by anto*

**English**

Can you check my answers for "To Kill A Mockingbird"? please help Chapter 1 from the passage that begins with "Maycomb was an old town" and ends with " Mrs. Dubose was plain hell" . 1. The narrator creates a mood for Maycomb primarily through the ...
*Monday, March 16, 2015 by Jessie*

**World history**

"It was a town of red brick, or of brick that would have been red if the smoke and ashes had allowed it; but as matters stood, it was a town of unnatural red and black like the painted face of a savage. It was a town of machinery and tall chimneys, out of which ...
*Sunday, March 15, 2015 by Anonymous*

**Physics**

Two horizontal forces Upper F1 Baseline and F2 act on a 3.6 kg disk that slides over frictionless ice, on which an xy coordinate system is laid out. Force F1 is in the positive x direction and has a magnitude of 7.1 N. Force F2 has a magnitude of 9.3 N. The figure here gives ...
*Sunday, March 15, 2015 by patrick*

**physics**

The system is frictionless and the trolley accelerates to the left at 3m/s squared. (a) calculate the unknown mass M. (b) calculate the magnitude of the forces in each string.
*Sunday, March 15, 2015 by kulani*

**Account **

Howie Stars produces starts for elementary teachers to reward their students. Howie Stars' trial balance on June 1 follows "HOWIE STARS Trial Balance June 1, 2012" Balance Account Title Debit Credit Cash $14,000 Accounts receivable 155,000 Inventories: Materials ...
*Sunday, March 15, 2015 by Shraddhya Dubey*

**science**

3.A weather station is located 300 miles directly east of a second station. Winds at the eastern station are blowing from the south. Winds at the western station are blowing from the north. What is true about the weather system near these two locations? A. A high-pressure ...
*Saturday, March 14, 2015 by Angelina*

**Math**

Hi! I wanted to know how you would sketch the graph of this system of inequalities. Math problem: 2x2 + y ≥ 2 x ≤ 2 y ≤ 1
*Saturday, March 14, 2015 by Heather*

**Criminal Justice/ Probation & Parole**

The advantage of selecting probation/parole officers on the basis of a written examination is that: A. it produces the candidates who will be the best probation/parole officers. B. it provides the hiring agency with the greatest amount of flexibility. C. it reduces or prevents...
*Saturday, March 14, 2015 by Pat*

**Corporate Finance**

Suppose you have been hired as a financial consultant to Defense Electronics, Inc. (DEI), a large, publicly traded firm that is the market share leader in radar detection systems (RDSs). The company is looking at setting up a manufacturing plant overseas to produce a new line ...
*Saturday, March 14, 2015 by Student*

**Science**

Which of the following may have happened if the inner planets had greater masses during the formation of the solar system? A. The inner planets may have been even smaller and rockier. B. The inner planets may have been larger and more gaseous. C. The inner planets may each ...
*Friday, March 13, 2015 by Anonymous*

**health. please help! #6**

6. It is the middle of winter and like everyone else you have caught a cold, your body relies on your ______ to help you boost your immune system. A. Plasma B. Red Blood Cells C. White Blood Cells D. Platelets
*Friday, March 13, 2015 by Anonymous*

**Health**

3. The muscular system allows our bones to: A. Strenthen B. Contract C. Lenghthen D. Move***** 4. This muscle helps to transport blood to and from the heart: A. Smooth Muscle***** B. cardiac Muscle C. Skeletal Muscle D. Invoulntary Muscle 5. The blood vessels that return blood...
*Friday, March 13, 2015 by Anonymous*

**science**

14. the sun's layer is called the photosphere . ( 1point) A. true b. false 15. meteoroids can form when comets break apart , creating dust clouds . ( 1point ) A. true b. false 16. a star is born whenever a nebula expands . ( 1point ) A. true b. false 17. a star system has ...
*Friday, March 13, 2015 by Help me,plz*

**Science Help Please**

1.A weatherman reports, “The storm waves are about 2 meters high and about 35 meters apart.” What properties of waves is the reporter describing? (1 point) A.frequency and wavelength B.wavelength and wave speed C.amplitude and wavelength *** D.amplitude and frequency...
*Friday, March 13, 2015 by frazzled*

**Science Help Please**

1.A weatherman reports, “The storm waves are about 2 meters high and about 35 meters apart.” What properties of waves is the reporter describing? (1 point) A.frequency and wavelength B.wavelength and wave speed C.amplitude and wavelength *** D.amplitude and frequency...
*Friday, March 13, 2015 by frazzled*

**Math**

So, my teacher wants me to sketch the graph of a system of inequalities but I'm not sure how. Can someone help me? Thank you! 3x + 2y < 6 x > 0 y > 0
*Thursday, March 12, 2015 by Lola*

**Science Please Help Me**

5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to every part of the body...
*Thursday, March 12, 2015 by SmartyPants*

**science Please Help Me**

5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to every part of the body...
*Thursday, March 12, 2015 by SmartyPants*

**Computer Science**

You try to run the CHKDSK utility from a command prompt but you keep getting an error message that you need to run it in Elevated Mode. How do you correct this? Reboot the computer in SAFE Mode and then run CHKDSK from a command prompt. Open command prompt from the Windows ...
*Thursday, March 12, 2015 by Ally*

**Physics**

Assume you have a rocket that requires a change in velocity of DeltaV=9.6km/s . There are two options for the propulsion system --- 1. chemical and 2. electric --- each with a different specific impulse. Using the setting of g0 =9.81m/s^2 to calculate the propellant fraction ...
*Thursday, March 12, 2015 by Janet *

**Physics **

Assume you have a rocket that requires a change in velocity of ¦¤V¡Ö9.6km/s . There are two options for the propulsion system --- 1. chemical and 2. electric --- each with a different specific impulse. Using the setting of g 0 =9.81m/s^2 to calculate ...
*Thursday, March 12, 2015 by Janet *

**science. mrs.sue please help**

14. the sun's layer is called the photosphere . ( 1point) A. true b. false 15. meteoroids can form when comets break apart , creating dust clouds . ( 1point ) A. true b. false 16. a star is born whenever a nebula expands . ( 1point ) A. true b. false 17. a star system has ...
*Thursday, March 12, 2015 by Hannah*

**help last one asap ss**

In 3–5 sentences, describe the apportionment system for state legislative districts.
*Wednesday, March 11, 2015 by XenaGonzalez*

**SOCIAL STDIES HELP!!!!!**

A case in which a group or individual claims that another group or individual has done them wrong is called a(n) (1 point) trial case. civil case. criminal case. appellate case.*** Which court has jurisdiction over death penalty cases in Georgia? (1 point) state court juvenile...
*Wednesday, March 11, 2015 by XenaGonzalez*

**Health last questions.**

Physical lines of defense include A. skin, cielia, and mucous membranes *** B. hair C. nails D. teeth When a doctor feels for lymph nodes, he is checking for A. inflammation *** B. shrinking C. pain D. sensitivity Your body can get antibodies from A. immunizations *** B. being...
*Wednesday, March 11, 2015 by Ann*

**math, **

Exponential distribution was used to model the lengths of CD-ROM drives in a two drive system. The two CD-ROM drives operate independently, and at least one drive must be operating for the sytem to eperate successfully. Both drives have a mean length of life of 25,000 hours. A...
*Wednesday, March 11, 2015 by ehsan*

**differential equation**

Write the model ODE and the implied initial values, and then solve the IVP to answer each of the f ollowing: [2*8=16pts] (a) A 3kg mass is attached to a spring whose constant is 6 N/m, and the entire system is submerged in a liquid which imparts a damping force equal to 6 ...
*Tuesday, March 10, 2015 by lopez*

**accounting**

Savallas Company is highly automated and uses computers to control manufacturing operations. The company uses a job-order costing system and applies manufacturing overhead cost to products on the basis of computer-hours. The following estimates were used in preparing the ...
*Tuesday, March 10, 2015 by ashley*

**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 by Shannon*

**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 by Samantha*

**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 by Please Help*

**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 by Lindsey*

**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 by Feras*

**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 by Anonymous*

**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 by Pat*

**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 by qwerty*

**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 by Josei*

**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 by Gigi*

**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 by O*

**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 by Pat*

**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 by NEED HELP QUICK*

**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 by John*

**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 by Amar*

**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 by Josei*

**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 by alba*

**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 by alba*

**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 by alba*

**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 by Jennifer*

**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 by Ivey*

**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 by Brenna*

**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 by Zhana*

**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 by Izzy*

**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 by Devon*

**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 by Izzy*

**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 by Brenna*

**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 by Sara*

**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 by Brenna*

**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 by Heather*

**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 by Gia*

**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 by bb*

**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 by Inequalities*

**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 by Fee*

**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 by Yola*

**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 by James*

**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 by TheLOUDEST_0430*

**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 by Muhammad*

**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 by Reynaldo*

**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 by Callie*

**pre algebra**

What value of y makes the following system of equations true? 3x + 6y=12 5x + 6y = 4
*Monday, March 2, 2015 by feeling silly*

**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 by XenaGonzalez*

**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 by Samantha *

**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 by watguy!!!*

**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 by anonymous *

**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 by Samantha *

**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 by Skyler*

**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 by Anonymous*