# 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

91,330 questions, page 712
1. ## Chemistry

Write a balanced equation for the reaction between hydrochloric acid and zinc metal. Zinc + hydrochloric acid ==> zinc chloride + hydrogen. These are the reactants and the products. You make it into formulae and balance it. I shall be happy to check your

asked by Chrissy on April 19, 2007
2. ## physics/calculus

I need help in calculating work. following quantites are given. * G: 6.67E-11 *Mass of earth:5.98E24 *mass of satelightt:80kg *x(initial) center of the earth-7E6 m *x(final) center of the earth 12E6 m How do I make integral equation I need use 20 interval.

asked by jenny on April 7, 2014
3. ## Physics

When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.42 m/s2. A careless crewman overloads the helicopter so that it is just unable to lift off. What is the mass of the cargo? I tried dividing

asked by Random on December 23, 2010
4. ## Repost-Physics 1

A crate of mass 48 kg is pushed up a frictionless ramp by a person as shown in the figure below. Calculate the work done by the person in pushing the crate a distance of 11 m as measured along the ramp. Assume the crate moves at constant velocity. _____J

asked by John on October 9, 2012
5. ## physics

1000 cm3 of air at 20 temperature and 101.35 kpa is heated at constant pressure until its volume doubles. a, use the ideal gas equation to calculate the final temperature of the gas. b, calculate work done by the gas as it expands.

asked by Meskelu on November 4, 2018
6. ## physics

4.80-kg watermelon is dropped (zero initial speed) from the roof of a 25.0-m-tall building. a) Calculate the work done by gravity on the watermelon during its displacement from the roof to the ground. b) What is the kinetic energy of the watermelon just

asked by anton on February 21, 2010
7. ## physics

Kelli weighs 392 N, and she is sitting on on a playground swing that hangs 0.4 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.1 m above the ground. If Kelli moves through the lowest point at 1.5 m/s, how much work was

asked by James on April 23, 2013
8. ## physics

A man pushs a cart wt a force of 36N directd@ an angle 25dgree belw the horizontal. The horizntal comp oe the force is 32.6N.The vrticl comp of force is 15.6N.Fnd work dne on the cart as the prsn moves50m

asked by Luc on August 15, 2011
9. ## AP European History

How did Medieval Europe lay the groundwork for the re-birth of Europe (Renaissance)? What conditions existed that allowed Europe to evolve out of medieval conditions? I don't even know where to start, other than that I know that monarchs began to solidify

asked by Christina on February 11, 2011
10. ## physics

Kelli weighs 392 N, and she is sitting on on a playground swing that hangs 0.4 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.1 m above the ground. If Kelli moves through the lowest point at 1.5 m/s, how much work was

asked by James on April 23, 2013
11. ## math/fractions

Ok one more question. I had this problem: Kristi jogged for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise? I took it to mean you had to add all the fractions together. So I found the lcd of all

asked by Mary on June 11, 2008
12. ## physics

A Cessna aircraft has a lift-off speed of 120 km/h. (a)What minimum constant acceleration does this require if the aircraft is to be airborne after a take=off of 240m? Work: 120 km/h-->33.3 m/s (33.3 m/s)^2= (16.7 m/s)^2 + 2a(240 m) a= 1.73 m/s^2 [What did

asked by Anonymous on September 7, 2007
13. ## Physics 1

A crate of mass 48 kg is pushed up a frictionless ramp by a person as shown in the figure below. Calculate the work done by the person in pushing the crate a distance of 11 m as measured along the ramp. Assume the crate moves at constant velocity. _____J

asked by John on October 8, 2012
14. ## physics

A ball rolls off a shelf with a horizontal velocity of v. At what horizontal distance from the shelf does the ball land if the height of the shelf is h above the floor? can anyone at least give me the formulas to work with?

asked by Anonymous on May 24, 2010
15. ## science

A 3.0-kg block is on a frictionless horizontal surface. The block is at rest when, at t = 0, a force (magnitude P = 2.0 N) acting at an angle of 22° above the horizontal is applied to the block. At what rate is the force P doing work at t = 2.0 s?

asked by songezo on April 15, 2019
16. ## chemistry

The tomato is dropped. What is the velocity, v , of the tomato when it hits the ground? Assume 91.9% of the work done in Part A is transferred to kinetic energy, E , by the time the tomato hits the ground.

asked by maxime Jones on November 15, 2014
17. ## physics

A 5kg bucket of water is raised from a well by rope. If the upward acceleration of the bucket is 3.0m/s^2, find the force exerted by the rope on the bucket. Work: F=(5kg)(3m/s^2) However, the answer given is .64 N.

asked by Anonymous on October 14, 2007
18. ## math

Emily's family loves to work together in the garden. They have a slight preference for flowers, as 60% of their plants are flowers and 40% are vegetables. They have 50 plants growing in the garden. How many vegetable plants do they have?

asked by person on December 15, 2014
19. ## Chemistry

The tomato is dropped. What is the velocity, v, of the tomato when it hits the ground? Assume 94.7% of the work done in Part A is transferred to kinetic energy, E, by the time the tomato hits the ground.

asked by Caitlin on December 7, 2014
20. ## Math

A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of drawing a white marble. Can someone please explain how I would work this out?

asked by Emily on May 21, 2018
21. ## math

Emily's family loves to work together in the garden. They have a slight preference for flowers, as 60% of their plants are flowers and 40% are vegetables. They have 50 plants growing in the garden. How many vegetable plants do they have?

asked by halo on January 7, 2015
22. ## Math

Sue, got a raise at work her current wage was \$32.500 a year her new wage is 35.500 a differents of \$3.000 per year how do I come up with her hourly wage she is paid is every 26 weeks?

asked by Cathy on February 13, 2010
23. ## physics

To recharge a 12 V battery, a battery charger must move 2.7 × 105 C of charge from the negative terminal to the positive terminal. How much work is done by the battery charger? Answer in units of J

asked by Anonymous on April 16, 2012
24. ## o-chem

30g malononitril in 300ml water, soluabiltity 20g/100ml in ether...13.3g/100ml water. what weight recovered by 3 100ml extractions using ether..i need help..how to work??

asked by reba on August 30, 2009
25. ## Algebra

Find two consecutive odd integers such that 5 times the first integer is 12 more than 3 times the second. I've gotten this far but confused as to what the two intergers are. 5x=3(x+2)=12 5x=3x+2+12 5x=3x+14 2x=14 2x/2x=14/2 x=7 Let n be first integer, so

asked by Amanda on April 22, 2007
26. ## Physics

A Carnot refrigerator is used in a kitchen in which the temperature is kept at 301 K. This refrigerator uses 216 J of work to remove 2360 J of heat from the food inside. What is the temperature inside the refrigerator?

asked by Tim on May 5, 2013
27. ## calculus - interval of convergence

infinity of the summation n=0: ((n+2)/(10^n))*((x-5)^n) .. my work so far. i used the ratio test = lim (n-->infinity) | [((n+3)/(10^(n+1)))*((x-5)^(n+1))] / [((n+2)/(10^n))*((x-5)^n)] | .. now my question is: was it ok for me to add "+1" to "n+2" to become

asked by COFFEE on July 30, 2007
28. ## maths

carl thought of 5 numbers and told danny all the sums that could be made by adding the numbers in pairs. the list of sums is given below. what are the five numbers 6,7,8,8,9,9,10,10,11,12 I thought of 34426 but the 11 does not work

asked by Yasmin on October 30, 2014
29. ## Math

Yvette earned \$66.00 for 8 hours of work. Lizbeth earned \$68.80 working the same amount of time. How much more per hour did Lizbeth earn than Yvette earned? a. \$0.35 b. \$0.45 c. \$2.80 d. \$8.25 Answer-c Please check the above.

asked by Patrick on February 17, 2016
30. ## physics

A worker pushes a wheelbarrow with a force of 40 N over a level distance of 6.0 m. If a frictional force of 24 N acts on the wheelbarrow in a direction opposite to that of the worker, what net work is done on the wheelbarrow?

asked by Anonymous on November 17, 2010
31. ## Math

Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5 days how many problems will she have left to work on day 6?

asked by Valerie on March 21, 2016
32. ## heat transfer

how microwave ovens work,and explain how they cook much faster than conventional ovens.Discuss whether conventional electric or microwave ovens consume more electricity for the same task.

asked by akalili on March 8, 2015
33. ## Data Management

Sorry...i wrote the previous questions wrong.. The producer of HB pencils has 720 pencils randomly chosen from each day's productions. A defect rate of 15% is acceptable. a) Assuming that 15% of all manufactured pencils are defective, what is the

asked by Jamey on January 13, 2008
34. ## Chemistry

For which of following can the metal ions be separated from one another by adding solution of sodium hydroxide? (a) cobalt nitrate and aluminum nitrate (b) barium nitrate and potassium chloride (c) magnesium nitrate and nickel nitrate (d) potassium nitrate

asked by Brandon O'Brien on June 7, 2017
35. ## language arts

in " all together now " , Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important . in a paragraph , site one example of each king of appeal in her work . then , explain whether you find jordans

36. ## Chemistry

When 20.1 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this reaction? My work so far... converted 20.1g of Sb2S3 to moles 20.1/149.8=.134 .134Sb2S3*2moles Sb/1 mole Sb2S3=.268*121.7=32.6 of Sb

asked by Gianna on February 8, 2015
37. ## History

To rule his empire successfully, hammurabi instructed his own governors__________. A.To teach local rulers. B.To rule distant cities. C.To train his sons to rule. D.To cut off communication with the outside world. I think its B but I can find anything in

asked by Anonymous on October 1, 2018
38. ## accounting-installment sales journal entry

Question: On 12/31/07, Company A sold equipment for \$1,800,000. The equipment had a carrying amount of \$1,200,000. At the time of the sale the buyer paid \$300,000 cash and signed a \$1,500,000 note bearing interest of \$1,500,000 note bearing interest at 10%

asked by Toni on October 24, 2008
39. ## English

Could you please check these sentences, Writeacher? 1) We were in /on a talent show which lot of people watch. We didn't win unfortunately, but it's created a lot of publicity (for us). 2) Since then, we've been writing new songs in the studio and we've

asked by Matthew on April 3, 2012

You are required to research and identify the stakeholders in the 'third runway at Heathrow row'. Your answer should be in the form of a short essay of at least 300 words and should show the interest of the stakeholders. Hint: The government has given the

41. ## US History

If you have a map of 19th century US and the names of the states are changed to Irish names, ie: Irish Sea , Mulligan, etc. And the question was to compare the map to a typical US map, would you answer with just explaining the obvious changes, or is there

asked by lulu on October 30, 2016
42. ## Principles of Management - Effective Management

Please double check my answers please! 1. a team manager is resolving the conflicts that exist among the members of his team in an organization. this is an example of: a. planning b. organizing c. leading d. controlling answer C 2. a manager at a grocery

asked by Amanda on July 10, 2012
43. ## Math

So I am supposed to solve this without using a calculator: Sqrt/10 - Sqrt/Sqrt - Sqrt[0.3125] + Sqrt[3 + 1/5] You can put this into WolframAlpha as is to make it prettier. Answer given is 1/2 * SQRT(5) I really don't know where to start here. I

asked by Mr.AMG on April 17, 2015
44. ## PHYSICS

HOW DO YOU FIND THE VELOCITY OF A 20 kg SOLID CYLINDER WITH A .25 m RADIUS WHEN IT IS RELEASED FROM THE TOP OF A 10 m LONG RAMP INCLINED AT 30 DEGREES? The potential energy at the top is mg10/sin30 The Ke at the bottom is 1/2 mv^2, plus 1/2 Iw^2 but w= v/r

asked by NICOLE on December 12, 2006
45. ## Physics

To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 12 cm in diameter and 45 cm in length. You would like a 2.0-A current to produce a 2.1-kG magnetic field inside your solenoid. What is the total length of wire you will need

asked by Valerie on March 24, 2013
46. ## 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. Write an equation using only one variable

asked by Nikki on November 22, 2010
47. ## 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. Write an equation using only one variable

asked by Anonymous on November 18, 2010
48. ## Algebra 1 word prob

For the period 1985-2001, the average salary "y"(in thousands of dollars) per season of a Major League Baseball player can be modeled by y=7x^2-4x+392 where x is the number of years since 1985. Write and solve an equation to find the year when the average

asked by Ⓔ.Ⓣ.Ⓦⓐⓩ Ⓗⓔⓡⓔ on August 30, 2013
49. ## Chemistry

Acetic anhydride, C4H6O3, has a normal boiling point of 139.8 C (ie, at 1.013 bar) and a standard enthalpy of vaporization of 51. 9 KJ mol^-1. What is the vapour pressure of acetic anhydride at room temperature (298 K) in units of bar? Can someone help me

asked by FS on July 28, 2018
50. ## math - 5th grade

Hello: I am having difficulty witht the following math: Question #1 If the area of a circle is 27 sq. in. What is the radius? I am coming up with an answer of 13.5 sq. in. Is that correct? If not, can you show me step by step how to get the answer?

asked by Sylvie on February 20, 2010
51. ## physics

Hi! could any help me please, thank you. 1.An object is placed 17.8 cm from a first converging lens of focal length 13 cm. A second converging lens with focal length 24 cm is placed 10 cm to the right of the first converging lens. (Take the direction to

asked by Chan on April 18, 2010
52. ## math

Michelle had 12 girls and 36 boys show up for field day. She wanted to divide them into groups so that each group had the same number of girls and boys. What is the greatest number of groups that Michelle can make if all of the children are in a group? a.3

asked by Kalyn on January 27, 2016
53. ## Probability

1) What is the probability of tossing 6 coins and getting at least two tails? 2) Suppose you flip a penny, a nickel,a dime and a quarter. What is the probability of getting heads on the penny and nickel and dime and tails on the quarter? Please show steps

asked by Kevin on June 4, 2010
54. ## Chemistry

Assuming that the specific heat of the solution is 4.18 J/(g⋅∘C) and that the calorimeter itself absorbs a negligible amount of heat, calculate ΔH in kilojoules for the reaction CaO(s)+H2O(l)→Ca(OH)2(aq) When 1.045 g of CaO is added to 50.0 mL of

asked by Tyler on April 20, 2014
55. ## Chemistry

Based on the average number of moles of IO3- in your samples, and the initial volume of those samples, what is the solubility of Ca(IO3)2 in mol/L of the saturated solution in 0.01 M KIO3? My average molarity was: .000092 My sample volume was: 5ml or .005

asked by Ane on March 11, 2015
56. ## How many milliliters of a stock solution of 6.00 M

How many milliliters of a stock solution of 6.00 M HNO3 would you have to use to prepare 0.190 L of 0.490 M HNO3? I used the equation M1V1=M2V2 6M*V1 = 0.190L*0.490 M lead me to this V1=0.190L*0.490M/6.00 M =0.0931 L per M/6.00M =0.0155166L

asked by Sara on August 28, 2015
57. ## Chemistry

In the presence of an acid catalyst, salicylic acid reacts with methanol to produce oil of wintergreen and water. If water is added to the solution, a precipitate is formed. Identify the precipitate and explain why it is formed. Don't understand...!

asked by Elizabeth on June 2, 2012
58. ## chemistry

When 18 g of ethylene glycol C2H6O2 is dissolved in 150 g of pure water, the freezing point of the solution is ___ (degrees)C. ( The freezing point depression constant for water is 1.86(dgrees)C kg/mol. I know the formulas I just need to see it done step

asked by Jared on August 4, 2008
59. ## chemistry

I thought about the syntax of the problem and I have surmised that what I thought were two questions was actually one. I'm slow but not dead yet. 75g of tartaric acid in 1 liter is used in a titration. 25mL of tartaric acid solution is titrated against

asked by What? on October 7, 2012
60. ## Chemistry

Devise a scheme for separating Al(NO3)3, AgNO3, Ca(NO3)2, and KNO3 from each other. The hint provided is to use the Ksp tables. Also, how could you isolate KNO3 from the solution in this question? How about using the Ksp tables and giving us your thoughts?

asked by Vanessa25 on May 7, 2007
61. ## physics

A 2 kg block situated on a rough incline surface (θ= 37o) and is connected to a spring with k = 100 N/m. The block initially at rest. The block moves 20 cm down the incline before stops. Find the coefficient of friction between the block and the surface.

asked by charley on September 6, 2012
62. ## chemistry

Suppose that 50.0 cm3 of 2.00 M hydrochloric acid are added to 4.00 grams of zinc metal. What it the limiting reagent? How many grams of zinc are actually consumed? What is the concentration of the hydrochloric acid solution after the reaction has

asked by Fania on November 8, 2010
63. ## chemistry

What mass in grams of potassium hydroxide is contained in 500 mL of solution that has a pH of 11.5? I have a pOH of 2.5 to get [OH] I do 10^-2.5 to get 0.001581138 Then I divide this by 2 to find the mols in 500 mL Then, grams = mols x molar mass =

asked by Dustin on April 7, 2008
64. ## chemistry

The Kb of ammonia is 1.8 x 10–5. What is the percent ionization of a solution of ammonia, 0.50 mol L–1 NH3, that contains 0.020 mol L–1 of ammonium nitrate, NH4NO3? when i use the ICE table i don't end up with an unknown so im not sure what to do.

asked by James on June 9, 2016
65. ## Chem

In acidic solution MnO4- oxidizes H3AsO3, a weak acid, to H3AsO4, a weak acid, and is reduced to Mn2+. Write the balanced net ionic equation for this reaction. How many H+ are there in the balanced equation? Question 8 answers

asked by EJ on February 22, 2011
66. ## ethics

This is the question i was asked, "The things that will destroy us are: politics without principle; pleasure without conscience; wealth without work; knowledge without character; business without morality; science without humanity; and worship without

asked by leanne on February 24, 2012
67. ## Chemistry

In the equilibrium system CH3COOH(aq) + H2O(l) —> — H3O+ CH3COO-(aq) .

asked by L on January 21, 2018
68. ## geography

The russian revolution in 1917 established: A)the eastern orthodox chruch as the center of power in russia. B)the czar as the holder of power as long as he agreed to be a communist C)a representative government but the revolution continued. D)peter the

asked by henry on September 2, 2009
69. ## English - help

Ms. Kemp Recruits Volunteers As a new ninth grader at my high school, I was sitting in an assembly about volunteerism.The guest speaker was Ms. Francis Kemp. Today I had an experience worth writing about. I must admit that I did not have high hopes for the

asked by Cassie on December 17, 2013
70. ## lisa

This is a question given to me to answer:How is dividing a polynomial by a binomial similar to or different from the long division you learned in elementary school? Can understanding how to do one kind of division help you with understanding the other

asked by Math on January 21, 2010
71. ## physics

Suppose that a spring is attached to a wall. On the other end of the spring, it is attached to an object of 0.263kg. When the spring is compressed at a distance of 15cm, it holds an elastic potential energy of 20.0J. The horizontal surface has no friction;

72. ## geography

Can you check my answers please? 1. What continents touch the 60 degrees W line of longitude? North America and South America, Antarctica 2. What do green areas on physical maps usually mean? It usually means land or low-lying land areas. 3. What is the

asked by Reed on December 3, 2012
73. ## Science

Which of the following best summarizes the function of the respiratory system? A. to transport oxygen to cells and wastes away from cells. B. to protect the organs in the chest cavity C. to move oxygen from the air into the body and carbon dioxide from the

asked by Anonymous on February 2, 2014
74. ## Science

Which of the following best summarizes the function of the respiratory system? A. to transport oxygen to cells and wastes away from cells. B. to protect the organs in the chest cavity C. to move oxygen from the air into the body and carbon dioxide from the

asked by Anonymous on February 2, 2014
75. ## Chemistry

When sodium burns in air it produces a bright white light and heat energy 2Na + O2 2Na2O ?H = -414kJ/mol What would you expect to be the heat energy associated with the reverse process 2Na2O 2Na + O2 Can you please show the entire calculation with units

asked by Timofey on June 5, 2013
76. ## College Physic

2) A car traveling with 5 m/s encounters a deer. The drivers slams on the breaks, the breaks lock. The car skids to a complete stop on the road ahead (and the deer runs away). Why does the car stop (where does all the kinetic energy it had go)? Find the

asked by Mary on March 23, 2012
77. ## Chemistry - DrBob222

When sodium burns in air it produces a bright white light and heat energy 2Na + O2 2Na2O ?H = -414kJ/mol What would you expect to be the heat energy associated with the reverse process 2Na2O 2Na + O2 Can you please show the entire calculation with units

asked by Timofey on June 5, 2013
78. ## math

John O'Sullivan has just completed his first year in business. His records show that he spent the following in advertising: Newspaper \$500 Radio \$800 Yellow Pages \$875 Local flyers \$650 What percent of John's advertising was spent on the Yellow Pages?

asked by michael on March 8, 2009
79. ## Calculus

Hi, I’d really appreciate if you can help me out with the following question: Nick bought a table for his basement. Unfortunately, he discovered that his table rocked back and forth on its four legs. After measuring the table legs and finding that they

asked by Ali Irfan Kurt on March 6, 2007
80. ## math

the 6th grade has 5 days to sell tickets to a talent show. The students predict that each day they will sell 10 fewer tickets than the day before. How many must they sell on the first day if they want to sell 200 tickets? --- do I divide 10 by 200 that

asked by tai on October 1, 2009
81. ## chemistry

In the reaction of sodium metal with chlorine gas to form sodium chloride, how does chlorine form an anion? Write an equation to support your answer. I know that chlorine becomes an anion since it's gaining an electron from sodium, but how do I show that

asked by Anonymous on June 28, 2015
82. ## Math

So this is such an easy question but they say to change the numbers to make it "friendlier" so like make it easier. Change 12 X 15 to friendlier numbers, as you saw in the video. Give your answer and explain or show how you got it. I can't prosses how to

asked by Rylie on November 15, 2017
83. ## Math

Missy divided her scrapbook page into sections to be decorated Each section she decorated was either 1/6 or 1/2 of the page The shaded parts of the figure show the sections Missy decorated Which of the following equations represents the total fraction of

asked by Jerald on November 8, 2012
84. ## Need Help Please- Pre-Calc

The coordinates of the five quarter points for y=sin(x) are given below. Use these quarter points to determine the​ y-coordinates of the quarter points of y=5sin(-π/3x). (0,0) (π/2,1) (π,0) (3π/2,-1) (2π,0) (Type ordered pairs. Type exact​

asked by chizoba on July 31, 2016
85. ## math

Samuel Morse developed a character coding system that was used to send messages along telegraph lines and also for light signalling between ships. Morse code is based on a series of dots and dashes (short of long bursts). The most frequently used letter,

asked by CL on April 7, 2010
86. ## physics

a projectile is ejected from a 25 m high tower with a velocity of 40 m/s at an angle of 30 degrees to the horizontal first on Earth and then on Mars. What is the ratio of the time taken to hit the ground on Mars compared to Earth? (Assume gravity on mars =

asked by kjean on January 27, 2014
87. ## Physics

Given: g=9.81 m/s square. The parachute on a race car that weighs 8042 N opens at the end of a quarter-mile run when the car is traveling 35 m/s. What net retarding force must be supplied by the parachute to stop the car in a distance of 1020 m? Answer in

asked by Jenna on February 25, 2008
88. ## Calculus

Hard rubber ball is thrown down from a building with a height of 5 metres. After each bounce, the ball rises to 4/5 of its previous height. Total vertical distance d ball has travelled at the moment it hits the ground for the 8th time, to the nearest 10th

asked by Anonymous on September 18, 2011
89. ## Math

A local Dunkin donuts makes blueberry muffins that cost \$.69 each to make. Past experience shows that 15% of the muffins will spoil and have to be discarded. Assuming this donut shop wants a 30% markup based on cost and produces 200 muffins, each muffin

asked by Liz on January 19, 2012
90. ## physics

Suppose a spherical planet P has a uniform density of 4.96*10^3 kg/m^3 and a radius R=1904 km. For a parcel that weighs 73 N on the surface of the (spherical) earth, what is A) gp/ge and B) its weight on the surface of P? Using the "tunnel mail" system

asked by Mudoh on April 11, 2011
91. ## Math

My question simply has to do with how to go about solving this: Jay has written 24 songs to date. He writes an average of 24 songs to date. He writes an average of 6 songs per year. Jenna started writing songs this year and expects to write about 6 songs

asked by Bibble on November 29, 2018
92. ## English

I urgently need you to chech the question and the answer to it. I considered your corrections. 1) Explain the meaning of the word compromise applied to the Victorian way of life. (Explain how the word compromise applied to the Victorian way of life). Then

asked by Henry2 on June 26, 2011

Every morning, I drive to work; as I get closer I can hear the cadence calling of all the basic training units on Fort Benning, Georgia. Regardless of what is on the training schedule for the rest of the day, we conduct Army Physical Readiness Training

asked by NICK Exemplification Essy on April 22, 2012
94. ## English/Psychology

1. What is a Positive Change as being a successful student in college? How will you know if a student is SUCCESSFUL (doing positive things)? Positive Change for becoming a successful student in college involves getting a clear picture about the harmful

asked by yolanda on January 2, 2011
95. ## Chemistry

In the reaction between H2O2 and I-, 15 mL of 0.30M KI, 65. mL of 0.10M H2O2 and 19 mL of 0.020M Na2S2O3 were mixed in a flask containing starch and buffer and the total volume was made up to 500mL with distilled water. The solution turned blue (indicating

asked by Nikita on March 22, 2011
96. ## College Physics

A uniform meter stick of mass M has an empty paint can of mass m hanging from one end. The meter stick and the can balance at a point 19.9 cm from the end of the stick where the can is attached. When the balanced stick-can system is suspended from a scale,

asked by Mimi on April 27, 2013
97. ## MATH

LAST YEAR BOB'S AGE WAS A SQUARE NUMBER AND NEXT YEAR IT WILL BE A CUBE NUMBER. HOW OLD IS BOB NOW ? PLEASE EXPLAIN HOW YOU WORK IT OUT ,THANKS

asked by wan on November 14, 2012
98. ## physics

A rock climber climbs a 15 m vertical rock wall while wearing a 5.3 kg backpack. How much work does the climber do on the backpack?

asked by Anonymous on October 24, 2011
99. ## Physics

Find the center of mass of two objects, one of mass M and one of mass m, separated by distance L? At R1 = L * (1 - m/(m+M)) from m and R2 = m * L/(m+M) from M At R1 = L^2 x (1 - m/(m+M)) from m and R2 = m * L^2/(m+M) from M At R1 = m * L/(m+M) from m and

asked by Shantal on January 30, 2016
100. ## Math

If a mixture requires 2 parts water to 3 parts of alcohol what percentage of mixture is water. How do I work this problem?

asked by Timmy on February 1, 2010