# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

92,096 questions, page 867
1. ## chem

Will someone help me with this problem, please? Calculate the mass in grams of 1.20*10^24 molecules of CO2. Well, convert it to moles of CO2. number moles= 1.2*1024/avagnumber Now, you take the molecular mass of CO2 (12 + 2*16) and multiply that by the

asked by Annette on March 21, 2007
2. ## social studies

Check my answers please Which of the following is the best example of the growing fear of communism and foreigners that America was experiencing in the 1920s? 1. labor unions losing supporters 2. the john scopes trial 3. the harlem renaissance 4. the sacco

asked by anonymous on February 8, 2017
3. ## math

you are trying to cool your house. The temp in the house is 85. Your ac is set for 78. The outside temp is 71. Which will cool the house the fastest leaving the windows open or leaving the windows closed? With the AC running, it will be better to open the

asked by manoj on March 17, 2007
4. ## science

You drive on an interstae 10 from San Antonio to Huston, half the [b]time[/b] at 55km/h and the other half at 90km/h. On the way back you travel half the [b]distance[/b] at 55km/h and the other half at 90km/h. What is your average speed from San Antonio to

asked by ben on September 10, 2006
5. ## Chemistry

One mole of nirtogen at 273K occupying 10 litres (state 1) is to be expanded to a volume of 20 litres at 373K (state 2). An infinite number of paths from state 1 to state 2 are possible. Consider the following important paths: (a) The gas is expanded

asked by Alice on January 8, 2009
6. ## English

I need to make this into two paragraphs and make it a little longer. I am drawing a blank. Can someone please help me. My study habits consist of reading aloud, note taking and last minute cramming. The reading aloud and note taking have always worked well

asked by Michelle on March 14, 2014
7. ## Organich Lab Help Please!!!!!!!!

You are asked to extract the alkaloid caffeine from tea and to purify the product. You are provided with the following information. a) Caffeine is soluble in hot water (18 g/100 ml) but less soluble in cold water (2.2g/100ml). b) Caffeine is a white

The same scenario, different roles and perspectives: The Situation. A company recently installed an Eazy-Air Model 77 air conditioner in your upstairs den. You are Norman E. Stocker, of 41 Citrus Place, Sumatra, FL 32691. Your wife supervised the work.

asked by Mr. Salman on August 16, 2007
9. ## Check!!

Can someone check whether I put the effects into the right category? Consequences of marijuana use. Physical: rapid heartbeat dry mouth and throat bloodshot eyes Reduced ability to perform tasks requiring concentration and coordination such as driving a

asked by John on October 12, 2009
10. ## Physics

You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 103-kg cylinder of radius R that has a maximum angular speed of 450 rev/s. The flywheel must deliver an average of 1.70 MJ of energy for each kilometer of

asked by Alex on August 2, 2011
11. ## physics

A slide-loving pig slides down a certain 35 degree slide in twice the time it would take to slide down a frictionless 35 degree slide. What is the coefficient of kinetice friction between the pig and the slide? I know that when the coefficent of kinetic

asked by Bri on November 27, 2006
12. ## Algebra

-your school club decides to hold a fundraiser by selling trail mix, and you are in chrage of making the mix. You plan to offer two mixes, Country Blend and Premium Mix, each sold in one pound bags. Each pound of Country Blend consists of 1/2 pound of

asked by Someone on December 15, 2011
13. ## English

I forgot to include the following examples.I urgently need to know if they are possible. 1) I usually ride my bike to school. My father drives his car to work. You can drive at 50 kilometers per hour on an Italian urban road. 2) You can drive at 130

asked by Henry2 on September 29, 2011
14. ## physics

A mass of 20 kg on a plane inclined at 40 degrees. A string attached to that mass goes up the plane, passed over a pullley and is attached to mass of 30 kg that hangs verticalyy. a) find the acceleration and it's dirction b) the tension in the string.

asked by Benji on November 20, 2006
15. ## com 215

map out a prospective job search and plan for an interview Your chart should cover three weeks. Your plan should focus on: •Where and when to search for prospective jobs and a list of those searches -- •Addressing ways to manage your résumés

asked by Edna on June 22, 2007
16. ## Math

I was wondering if someone could help me check my work on this problem and see if I'm correct. Consider the experiment of drawing two cards without replacement from an ordinary deck of 52 playing cards. What are the odds in favor of drawing a spade and a

asked by Punkie on November 28, 2009
17. ## Geometry

Given: 7x + 2 = 2 + 5x – 6 Prove: x = –3 Given the equation 7x + 2 = 2 + 5x – 6, use the commutative property to rearrange the terms so that like terms are next to one another. This gives the equation 7x + 2 = 2 – 6 + 5x. Then, use the

asked by Anonymous on February 21, 2012
18. ## Statistics

You look at the relationship between how much time people spend on the website ‘Bookface’ and how productive they are at work. time spent on Bookface is the predictor variable, and time spent working is the response variable. correlation between

asked by claire on March 22, 2017
19. ## Physics

A small 7.10kg rocket burns fuel that exerts a time-varying upward force on the rocket. This force obeys the equation F = A + Bt^2. Measurements show that at t = 0, the force is 121.0N, and at the end of the first 2.10s , it is 176.0N. Part A Find the net

asked by Dreskillz89 on September 20, 2009
20. ## Language Arts

1. One would expect people living in utopian society to be A. wealthy B. difficult C. idealistic D. impossible*** 2. Which statement best describes a utopian community? A. People band together to share resources and duties equally.*** B. Resources are

asked by Dude that smells on May 3, 2017
21. ## English

Could you please check these sentences I'm not sure of? Thank you. 1)Who (amont you) gets the best marks in both English and science? Who achieves the best results in both English and science? We are going to choose high achievers who get the best/highest

asked by Henry2 on December 20, 2011
22. ## criminal justice

Probation officer Nichols is in charge of Jim. Jim was sentenced to three years of imprisonment for drug trafficking. However, because Jim had no past records of criminal activity, he was granted probation. He also had an excellent work record. The terms

asked by sharday on August 29, 2014
23. ## American Government

1) Which of the following would be most likely to occur if there were no nominating step in American electoral politics? A) Many people would run and the best, most qualified candidate would win. B) Many people would run and the winner would be elected

asked by Juliet on November 7, 2016
24. ## hypothesis testing by mean levels

hi everyone... i have this homework.. i tried to solve it... can anyone check if it's right or not, please?? Question: The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.2 parts per million (ppm). A consumer health

asked by lubna on November 10, 2010
25. ## Social Studies

Plz help Which event caused the United States to lead a war in Afghanistan? A. the ISIS attacks on Iraq B. the civil war in Syria C. the September 11, 2001, attacks on New York and Washington, D.C. D. the attacks by Hamas on Israel Why did the Cold War

asked by Me on December 19, 2018
26. ## Chem

Concerning compounds cyanogen, Hydrogen cyanide and sodium cyanide. Cyanogen = C2N2 (CN)2 Hydrogen Cyanide = HCN boils at 26C and yeilds an acid solution when added with water. Sodium Cyanide = empirical formula NaCN is a solid melts at 564C a) Assuming

asked by Lacey on March 6, 2007
27. ## algerbra

Belinda wants to invest \$1000. The table below shows the value of her investment under two different options for two different years: Number of years 1 2 3 Option 1 (amount in dollars) 1300 1600 1900 Option 2 (amount in dollars) 1120 1254.40 1404.93 Part

asked by jorjie on December 16, 2015
28. ## math

Here's an algebra question I need help on. I just need someone to explain how to get started...you don't have to solve it for me. I just don't know how to get the answer! Greta has a vegetable garden. She sells her extra produce at the local Farmer's

asked by Nessa on August 31, 2007
29. ## Chemistry labs in highschool

I was curious to know whether it was standardized practice to have labs for chemistry classes in highschool. I personally have never had labs for chemistry in highschool. In my state we have the Regents. You may or may not have heard of this test, but the

asked by ~christina~ on August 23, 2007
30. ## social studies

give all answers in detail what is consumer awareness Need of consumer awareness Consumer law in india forms of consumer exploitation consumer protections-i)some perspectives ii)case study role of producers in protecting consumers advice to consumers,their

31. ## Accounting Math

Can anyone please show me the calculation for these problems: Burlin Company starts the year with \$100,000 in assets and \$80,000 in liabilities. Net Income for the year is \$25,000, and no dividends are paid. How much is owner’s equity at the end of the

asked by Peaches on September 13, 2009
32. ## Math

Use place value to solve Pablo has a piece of wire that is 0.08 Meters long. Beth has a piece of wire that is 10 times as long as Pablo's wire.Li's wire is 1/10 as long as Pablo's wire. How long is Beth's wire? How long is Li's wire?

asked by Emma on March 18, 2018
33. ## algebra

What in the world does this mean? To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write

asked by Laura on September 14, 2008
34. ## algebra

To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one

asked by Jack on April 8, 2008
35. ## writing english

Hi, I need help with a paper I wrote on an analysis of an advertisement. This is the ad i analysed facebook.cm/video/video.php?v=176110229125188 Could someone please tell me the Ethos and Pathos for this ad ? My ethos was - The text embellishes character

asked by Ying on March 18, 2013
36. ## Ethos and Pathos

Hi, I need help with a paper I wrote on an analysis of an advertisement. This is the ad i analysed facebook.cm/video/video.php?v=176110229125188 Could someone please tell me the Ethos and Pathos for this ad ? My ethos was - The text embellishes character

asked by Ying on March 20, 2013
37. ## computer networks.

Question 1 (PIM) Assume you have a source S, and assume that some receivers have joined the shortestpath tree of S, while other receivers have joined only the shared tree. Prove that, if the network is in a steady state (no routing table changes, no

asked by Suraj on October 30, 2007
38. ## Math - Venn Diagrams

How can we solve this using a Venn diagaram? 12 out of 1000 women at age forty who participate in routine screening have breast cancer. 880 out of 1000 women with breast cancer will get positive mammographies. 90 out of 1000 women without breast cancer

asked by Stephanie on February 8, 2010
39. ## Math

How can we solve this using a Venn diagaram? 12 out of 1000 women at age forty who participate in routine screening have breast cancer. 880 out of 1000 women with breast cancer will get positive mammographies. 90 out of 1000 women without breast cancer

asked by Stephanie on February 8, 2010
40. ## Science

Which of the following can be accurately said about climax communities? A. Climax communities are always stable. (B. Restoration of the original climax community is always achieved at the same rate.) C. Climax communities are always uniform. D. Restoration

asked by Jordan on March 23, 2016
41. ## Physics

Please Help! I am having difficulties grasping these concepts. Explain please! 1. How much heat energy is required to change 500 grams of water at 100 degrees Celsius to steam at 100 degrees Celsius? 2. How much energy is lost if 7kg of water is cooled

asked by Tamai on June 8, 2014
42. ## English

I forgot to include the following statements. I really hope you can check them, too 1) The Druids were the Priests, Priestesses and Magicians of the Celtic people. They administered religion, justice and education. 2) The word “Druidae” is of Celtic

asked by Franco on January 30, 2011
43. ## Logarithmic Function

A spacecraft is approaching a space station that is orbiting Earth. When the craft is 1000 km from the space station, reverse thrusters must be applied to begin braking. The time, t, in hours, required to reach a distance, d, in km, from the space station

asked by Jus on May 17, 2009
44. ## geology(science) am i right?

Respond to the following scenario: o Your younger brother is in 5th grade. He comes home and tells you to look at an animation his teacher showed him in geology class. o Review the Continents of the Past animation on this week¡¦s aXcess page. o After

asked by scooby91320002 on March 13, 2009
45. ## Intro to LAN

I have an assignment. here is the criteria All key elements of the assignment are covered in a substantive way. · Select one organization from the company descriptions in Appendix G · Recommend how the company should back up and protect their network

asked by James on May 19, 2008
46. ## Mixed melting point

Question: A compound melting at 134 degrees C was suspected to be either aspirin (mp 135C) or urea (mp 133C) Explain how you could determine whether one of these two suspected compounds was identical to the unknown compound without using any form of

asked by Sheryl on October 1, 2006
47. ## English

Can you suggest/comment on my poem? Death and Liquorice It is funny how everyone sees me, As a looming ghost above their head In fact we have never met before Yet they still anticipate me with dread. What I do I do as a professional Employed by the great

asked by Vic on September 7, 2008
48. ## Health (Ms. Sue)

"A man moved into the apartment next door to Tasi last week. He makes her nervous. Whenever she passes him in the hall, he looks over her whole body. Yesterday, when Tasi came home from school, the man asked her to come over his apartment to watch a movie.

asked by Anonymous on November 3, 2013

Hi, please check my work: In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The balanced equation is: 4FeS + 7O2 --> 2Fe2O3 + 4SO2 Calculate the % yield. My Answer: nFeS=23.4g/87.92 g/mol =0.266 mol 4mol FeS /

asked by Sarah H on May 24, 2008
50. ## uc

As an experiment she randomly selected 15 students and randomly assigned them to one of three groups which include either a PowerPoint presentation created by the faculty, AuthorGen Presentation created by the faculty, or a well known tutorial by the ABC

asked by tia on December 6, 2010
51. ## English Composition

Hi, can someone proofread this and let me know what my weaknesses are on my thoughts or sentence structure. Based on the article I read I believe that the bases of wars are a result of people’s lack of understanding, appreciation, and respect for other

asked by Bizzy on February 3, 2008
52. ## physics

The diagram below shows two identical balls A and B on a horizontal surface. Ball B is at rest and ball A is moving with speed V along a line joining the centres of the balls. The mass of each ball is M. (DIAGRAM BEFORE COLLISION: there are 2 balls, first

53. ## com 155

Underline the Adjectives and Bold the Adverbs in these sentences: 1. The beautiful princess cautiously walked in the forest. 2. The lovely woman lives in a friendly neighborhood. 3. The students show a really wonderful attitude. 4. He spoke sharply,

asked by tawna on April 8, 2011

I really need help on this problem... ===================== Hydrocarbon Formula Delta H (kj/mol) 1,3-Butadiene C4H6(g) 111.9 a) calculate the fuel value in kJ/g for this compound and determine the percentage of hydrogen by mass. I've tried it for hours yet

asked by Jina on January 9, 2007
55. ## History

1. What is one benefit of reservation life for Native Americans? A. They have access to many Native American employers B. They have the freedom to have some self-government*** C. They have special boarding school for their children D. They have a lifestyle

asked by Charlotte Dunois on February 28, 2019
56. ## chemistry

0.702g of arsenic an oxide of arsenic mass 0.927g how do i calculate the mass of oxygen that combines with 1 mole of arsenic atoms to form the oxide of arsenic. how many moles of oxygen atoms does this mass represent a and then using that answer i have to

asked by minnie on January 31, 2007
57. ## Computers (XML)

employees.xml Linda P. Jone 386-333-2321 Tom Smith Hilda Parham 386-455-5675 Create a DTD files â€œemployee.dtdâ€ based on â€œemployees.xmlâ€. Create a schema files â€œemployee.xsdâ€ based on â€œemployees.xmlâ€. Create a

asked by Lisa on February 21, 2012
58. ## Satistics

1.A large electronics company wants to estimate the proportion of all households that own GPS machines. What sample size is required that would give the maximum error of 2.0% for a 95% confidence interval? An unscientific survey had an initial result of

asked by SANNM on August 22, 2017
59. ## Physics Electrical help thanks

Thank you ! At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.3 105 m/s and vy = 3.6 103 m/s. Suppose that the electric field between the plates is given by E = (120 N/C) j. (a) What is the

asked by Jennifer on February 15, 2007
60. ## pre-calculus

You are given a pair of equations, one representing a supply curve and the other representing a demand curve, where p is the unit price for x items. -45 x^2 - 74.5199999999995 x + 15921.36 - 1224.72 p = 0 and 54 x^2 + 1743.12 x + 13880.16 - 6940.08 p = 0

asked by Irina on October 14, 2014
61. ## physics

A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 m^3 of water and the surface area of the bottom of the container is 5.00 m^(2 ). The height of the lower part of the container is

asked by seth on April 21, 2009
62. ## check american government

im suppose to right an essay if the president is too powerful. is this good. The Articles of Confederation was our first Federal Constitution. It proved too weak to carry on the work of a national government. Under the Articles, each year the Congress met,

asked by Anonymous on October 26, 2008

we had to write a lead on this news, answering what's the what, whats news, and since its broadcasting we had to be it simple and conversational, as if we were reading it. story: The Bush Administration recently proposed eliminating 20 National Weather

asked by Blaze on February 26, 2013
64. ## Physics

In a city with an air-pollution problem, a bus has no combustion engine. It runs on energy drawn from a large, rapidly rotating flywheel under the floor of the bus. The flywheel is spun up to its maximum rotation rate of 5150 rev/min by an electric motor

asked by Brent on March 13, 2011
65. ## Inequality prob#2

log(x-2) + log(9-x) < 1 log(x-2) + log(9-x) < 1 log(x-2)(9-x)

asked by solving inequality on February 22, 2007
66. ## First Amendment Question

Which would be permitted under the establishment clause of the First Amendemnt? 1. A public elementary school inviting a local pastor to visit each morning to open the day with a prayer in the gym for any students who wish to attend. 2. Public high school

asked by Carrie on January 25, 2007
67. ## ELA

Tips on taking notes are Put a bunch of information on one card, put the author’s name first, and summarize everything. Take accurate notes: don’t misinterpret the words, write facts to include examples, statistics, data and expert testimony, take

asked by Loomin on May 15, 2018
68. ## analytic geometry

1. The orbit of the earth is an ellipse with the sun at a focus, the semi-major axes 93 million miles and the eccentricity is 1/60. Find the greatest and least distance of the earth from the sun. 2. A battle shipping is sailing at a straight line towards

asked by sylvia on January 30, 2016
69. ## Algebra

Please help solve Problem of the Week Waiting in line... The week before the big concert, five friends Alan, Ben, Cameron, Derryck, and Garrett, stood in line to buy tickets. There were other people there, but the five friends were in the line in the order

asked by Linda on April 19, 2012
70. ## Physics

Three part problem cant figure out the second and third parts (part 1 of 3) A cart loaded with bricks has a total mass of 12.9 kg and is pulled at constant speed by a rope. The rope is inclined at 20.6 ◦ above the horizontal and the cart moves 25.8 m on

asked by Johnathon on November 15, 2008
71. ## Physics

A stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 2.0 kg, encounters a coefficient of kinetic friction µL = 0.40 and slides to a stop in

asked by COFFEE on February 25, 2007
72. ## Algebra (check my work?)

1. Write a proportion using an unknown value x and the ratio 5:6 then solve it. 5/6 = x/12 6 * 2 = 12 5 * 2 = 10 x = 10 2. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of

asked by Ivy on April 17, 2015
73. ## Spanish

Can someone please check my work? In complete sentences, answere the following questions. modelo: A mí me gusta (me gustan)... 1. ¿Qué comidas te gustan más? A mí me gustan huevos. 2. ¿Qué comidas no te gustan? A mí no me gustan bananas. Answer the

asked by Larry on March 25, 2009
74. ## physics

Erica throws a ball out of a window with a horizontal speed of 3.8m/s. If the ball hits the ground 15m away, how high up is the window? My work: X-direction v1x=3.8m/s v2x=3.8m/s a=0m/s2 d=15m y-direction I don't know how to find the initial and final

asked by anisa on November 3, 2014
75. ## COM215 Axia College

Need help with COM215 Week 4 Day 7 Ques ASSIGNMENT Assignment WEEK 4 Informative, Positive, Negative, and Persuasive Messages Due Day 7 (Individual Forum) Scenario 1: Write an informative message that tells one of your colleagues at work or one of your

asked by Jackie on November 18, 2007
76. ## Language

Joe magarac, Man of steel 8. In section 1, what does the author mean when he says joe magarac is a folk hero? A. Joe was a real man who spent his whole life in the steel mills of Pittsburgh. B. Joe was a mysterious figure who vanished without a trace. C.

asked by French Fries on May 1, 2017
77. ## Chemistry

Determine the number of grams of NH3 produced by the reaction of 3.5g of hydrogen gas with sufficient nitrogen gas 1. Write the balanced equation. 2. Convert what you have (3.5 g) into mols. Mols = grams/molar mass. 3. Use the coefficients in the balanced

asked by Roxxanne on March 11, 2007
78. ## PHYSICS

The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 × 10-3 m2. The initial pressure, volume, and temperature

asked by Anonymous on May 20, 2015
79. ## Public Organization Management

Can someone read over my case paperI cannot add a file so i just copied and pasted it...I did not add my references at the end either or the tables since they wont show up right here just need to see if this makes sense and flows and my in paper citations

asked by Mel on July 14, 2014
80. ## math//algebra

Eye color is determined by genetic combination. Let R represent the gene for brown eyes and l represent the gene for blue eyes. Any gene combination including R results in brown eyes. Consider the offspring of a parent with a homozygous brown-eyed, RR, and

asked by ana URGENT on December 19, 2012
81. ## english

Out of the following ten sentences, 5 of them are correct in their use of apostrophes. Simply write the numbers of the five sentences that are correct. . The five sentences that I choose were correct were 3,4,6,7, and 8 Is this correct? Canada’s mens’

asked by jennifer on February 27, 2016

Choosing to blow the whistle on your employees or coworkers can create all kinds of legal, ethical, and career complications. Here are five common workplace scenarios that will challenge employees about whether or not they should go public with potentially

asked by bessie on September 24, 2012
83. ## SCIENCE CHECK

Pleas check the following for me... "A drop of oil (vol 0.051cm ) is released on to the surface of a pond where it covesr an area of 40cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule. Calculate the diameter of

asked by Mark on February 6, 2007
84. ## Social Studies Help please its a quiz

Dix also joined a growing movement to improve conditions in prisons. Men, women, and children were often crammed together in cold, damp rooms. When food supplies were low, prisoners went hungry—unless they had money to buy meals from jailers. Five out of

asked by jake on March 7, 2018
85. ## Physics - Ionic bonding

Hello My exams are coming I'm a straight A student .. the problem however is : My textbooks , teacher and every piece of work that he gives us is complicated can someone explain me how Ionic Bonding works and when we're taking about this table here can

asked by Sasha on June 7, 2007
86. ## Calculus

A plane flying with a constant speed of 14 km/min passes over a ground radar station at an altitude of 7 km and climbs at an angle of 45 degrees. At what rate, in km/min is the distance from the plane to the radar station increasing 2 minutes later? I know

asked by Michael on October 14, 2006
87. ## help azap math

Latasha went to the fabric store and bought yards of red fabric and yards of blue fabric. How many yards of fabric did Latasha buy altogether? A student solved the problem this way: Latasha bought yards of fabric. Use a similar strategy to solve this

asked by diego perez on April 22, 2016
88. ## English essay

Sorry, I haven't written an essay in a long time. I'm studying for IGCSEs. How can I improve this essay? After visiting Asia for the first time in 2006, I noticed how hard life was for people with disabilities. Unlike in the developed world, people with

asked by Gabby on August 30, 2009
89. ## math

find all solutions in the interval [0,2 pi) sin(x+(3.14/3) + sin(x- 3.14/3) =1 sin^4 x cos^2 x Since sin (a+b) = sina cosb + cosb sina and sin (a-b) = sina cosb - cosb sina, the first problem can be written 2 sin x cos (pi/3)= sin x The solution to sin x =

asked by lauren on March 22, 2007
90. ## Geometry

A construction crew wants to hoist a heavy beam so that it is standing up straight. They tie a rope to the beam, secure the base, and pull the rope through a pulley to raise one end of the beam from the ground. When the beam makes an angle of 40 degrees

asked by NORA on March 16, 2016
91. ## Chemistry

I had to perform an experiment using a coffee-cup calorimeter to determine the enthalpies of two separate reactions. For part 1 we worked with magnesium metal, and magnesium oxide. Data was collected and now I need to find the q, heat transferred for both

asked by Hannah on February 13, 2012
92. ## PE

Not exactly a question but still considered as homework i need help with. Thanks in advance for answering if you do, its a great help. Ive been given a task to survey people about excercise and fitness. The answers don't have to be long but please atleast

asked by Ronnie on July 1, 2008
93. ## science

Michael thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to

asked by natalie on September 27, 2018
94. ## physics

A father racing his son has half the kinetic energy of the son, who has half the mass of the father. The father speeds up by 1 m/s and then has the same kinetic energy as the son. What are the original speeds a) of the father? b) of the son? I know that

asked by Chris on December 14, 2006
95. ## Accounting

I need help in working this problem...please help... Gaines Company recently initiated a post audit program. To motivate employees to take the program seriously, Gaines established a bonus program.Managers receive a bonus equal to 10 percent of the amount

asked by Anna on June 14, 2012
96. ## physics

You are riding on a jet ski at an angle upstream on a river flowing with a speed of 2.8 m/s. Suppose the jet ski is moving at a speed of 18 m/s relative to the water. (a) At what angle must you point the jet ski if your velocity relative to the ground is

asked by micole on May 14, 2007
97. ## Math

A 140 kg traffic light is suspended above the street by two cables. What is the tension in each cable? a)Draw a Free Body Diagram and label all the forces on the suspension point for the light. b) Find the angles the cables make with the horizontal. c)

asked by Anonymous on March 20, 2019
98. ## writing

Assignment: 2 paragraphs on Integrity based on the Emperor's Club 3 facts with 2 supporting details of each fact an opening and a closing...Does this satisfy the requirements? And, please do a quick proofreading. Thank you. To make your children capable of

asked by M on May 28, 2009
99. ## As Physics

Please help and do it step by step all parts of questions and use: T = time(s) I=current (amps) Q=net charge on object (Coulombs) N=no electrons (and write if added or removed from object and how) E=elementary charge Calculate the number of free electrons

asked by cylinder on January 4, 2018
100. ## Language Arts Help!!

10 MS. SMITH: {glossing over his misbehavior and adopting a serious tone as she hands Jason a piece of paper} Yes, ok. So, tell me your plan for the project. Have you consulted this project list yet? You really need to quit putting this off. You're the

asked by Valerie on May 25, 2016