law

5,280 results, page 35
  1. Physical Science

    Which of the following does NOT show the law of conservation of mass? A. 24 g of Mg burn in 32 g O2 to produce 56 g of MgO. B. 24 mL of Mg burn in 32 mL O2 to produce 56 mL of MgO. C. 2 atoms of Mg react with 1 molecule of O2 to produce 2 units of MgO. D.

    asked by Brandon on August 27, 2013
  2. Physics

    A uniform bar of iron is supported by a lon, uniform Hooke's Law spring. The spring is cut in half exactly and the two pieces are used to support the same bar. If the whole spring is stretched by 4 cm in the first bar (that is not cut in half) how much

    asked by Capreeca on July 20, 2011
  3. PHYSICS PLEASE HELP

    A very large firecracker explodes in the hallway into 3 fragments. Physics students rush to the scene to enrich their knowledge of the law of conservation of momentum. They report that Fragment 1: mass=1.23kg, v=8.70m/s, north Fragment 2: mass

    asked by Maddie on April 28, 2015
  4. world history

    Marina and I have our social studies essays as parts of our exams tommorow. The question is- Greece's achievements as well as its government system developed over time. In many ways, their development compares to our American system of government and our

    asked by shivangi and marina on May 20, 2008
  5. HEALTH CARE

    You have just assumed a position as HIM Director of a large HIM department in a different state, and you are faced with an overflowing paper file unit in the hospital. You need to determine how long various health records must be maintained. As part of

    asked by Anonymous on June 14, 2016
  6. Physics

    A 25 kg box is being pulled across a surface. The coefficient of kinetic friction between the box and the surface is 0.55. a) if the box is moving at a constant speed, what is the pulling force? b)If the pulling force is 350 N, what is the NET force acting

    asked by Daniel on November 17, 2014
  7. math

    Hooke's law states that the distance an object is stretched varied directly with the force exerted on the object. Suppose the force exerted by 7-kg mass stretches a certain spring 5 cm. To the nearest 0.1 cm. how far will the spring be stretched by the

    asked by Isaiah on October 18, 2012
  8. Government

    Suppose you want to take a scientific poll about people’s opinion on a new boating law for Lake Blue. Who should make up your universe—all the people in the United States, only townspeople, only boat owners, only people who live on the lake, anyone who

    asked by Patrick on May 12, 2009
  9. Please help with Calculus??

    Boxes are labeled as containing 500g of cereal. The machine filling the boxes produce weights that are normally distributed with standard deviation 12g. 1) Suppose a law states that no more than 5% of a manufacturer's cereal boxes can contain less than the

    asked by Robin on November 8, 2013
  10. physics

    A 75kg snowboarder has an initial velocity of 5.0 m/s at the top of a 28 degree incline. After sliding down the 110m long incline (on which the coefficient of kinetic friction is = Bk0.18), the snowboarder has attained a velocity v . The snowboarder then

    asked by emmie on May 8, 2012
  11. chemsitry

    c. Use the enthalpy diagram provided above and apply Hess’s Law to determine the standard enthalpy of formation for C12O36H20N12 (s) using the results from part (a) and the following values: The standard enthalpy of formation of gaseous carbon dioxide is

    asked by Nora on October 23, 2010
  12. Legal Research Studies

    This is my first assignment in University and in a law course. I have learning disabilities and have trouble remembering and reading/writing. This is my first assignment. I read it but I don't understand a thing. Please help me out... "While researching a

    asked by Hina on January 20, 2015
  13. world history A

    Read the summary. The social structure of city life during the Neolithic period was very different from hunter-gatherer society, as it often restricted individual freedoms (1). At times, personal or family autonomy was replaced with the outside authority

    asked by malia on September 26, 2017
  14. business

    is the trade-off between the necessity of writers, musicians, artists, and movie studios to profit from their work and the free flow of ideas for the public benefit. Movie (and music) industry participants claim that encryption programs are necessary to

    asked by Anonymous on October 29, 2011
  15. Rate Constants

    I'm really stuck with this one. Here's the rate law and the data that is needed. I appreciate any help Rate= k[I2]X{[H+]Y[CH3COCH3]Z Trial Volume of 0.0010 M I2 Volume of 0.050 M HCl Volume of 1.0 M acetone Volume of water Temperature (degrees C) Reaction

    asked by Amy on February 12, 2013
  16. science

    Helium has the lowest boiling point of the elements. The slightest change in temp can cause it to vaporize and expand. To prevent pressure explosions, a line from the tank has a "burst disk" in case a of sudden pressure increse. then the diaphragm would

    asked by anonymous on January 2, 2011
  17. English

    This is one proposal that will definitely anger some people: Everyone should have a pet. There should be a law that makes sure everyone will get a pet or give a legitimate reason why they cannot. There are almost infinite arguments to favor owning animals,

    asked by Anonymous on May 19, 2014
  18. English

    This is one proposal that will definitely anger some people: Everyone should have a pet. There should be a law that makes sure everyone will get a pet or give a legitimate reason why they cannot. There are almost infinite arguments to favor owning animals,

    asked by Anonymous on May 19, 2014
  19. cp biology

    include the following vocabulary when completing the concept map. be sure to PLACE THE WORDS in the correct step of the scientific method, and DISCUSS what occurs at each step. words: qualitative data quantitative data independent variable data analysis/

    asked by rachel on August 18, 2015
  20. Science

    Can you plz check asp 1. Suppose the total momentum of two masses before a collision is 100 kg m/s. What is the total momentum of the two masses after they collide? (1 point) 0 kg m/s 50 kg m/s 100 kg m/s 200 kg m/s 2. What is the momentum of a 20.0 kg

    asked by Stephanie on May 11, 2015
  21. mathvariation 2(steve,reiny,reed) pls I need help!

    the force E needed to make a machine pull a load is partly constant and partly varies as the load to be pulled itself.when the load is 20g,the force needed is 1.4n,where as the force needed for 30g load is 2N. Find the: A)law connecting the load and the

    asked by cynthia on April 30, 2017
  22. science quiz pls help!!!

    In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more momentum. True False***? 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100

    asked by TTR+S<3 on March 18, 2014
  23. Business Law

    What are the elements of a contract under common law? Explain what gaps in a contract can be filled by Article 2 of the UCC? What is the difference between a shipment and a destination contract in Article 2 of the UCC? Jason shipped a truckload of peaches

    asked by Juan on September 27, 2010
  24. Business Law

    What are the elements of a contract under common law? Explain what gaps in a contract can be filled by Article 2 of the UCC? What is the difference between a shipment and a destination contract in Article 2 of the UCC? Jason shipped a truckload of peaches

    asked by Juan on September 27, 2010
  25. Economics (SraJMcGin)

    Given the larger population runs in The States than in Canada, the costs are spread over more units. In fact in The States a cost over run of 10% could be dumped in Canada. Given the law of demand, what would happen to the Canadian company? If you worked

    asked by David on March 3, 2011
  26. mathematics of investment

    step by step solving plsss im very law in math so plss to solve step by step thanks.On August 1,1990, Mr.Talamos borrows 9,500 pesos and agrees to pay the compounded amont on the day he pays the debt. If interest is at the rate of 5 1/2% compounded

    asked by BM on September 21, 2014
  27. Womens History

    A woman's rights in reagrds to spousal abuse ____________. A. varied widely depending on the colony in which she found herself living B. varied widely depending on the colony in which she was married. C.were strictly defined by federal law. D.were strictly

    asked by Blair on September 8, 2006
  28. physics

    A 7000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in the figure below. Both springs are described by Hooke's law and have spring constants with k1 = 1700 N/m

    asked by Anonymous on March 23, 2012
  29. Physics helpp please!

    A 8000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in the figure below. Both springs are described by Hooke's law and have spring constants with k1 = 1700 N/m

    asked by Kate on April 4, 2011
  30. physics

    A ray of light enters the top of a glass of water at an angle of 36 degrees with the vertical. What is the angle between the refracted ray and vertical? The answer is 26 degrees but I keep getting 22 degrees. I used snell's law: n1sinθ1=n2sinθ2 for n1 I

    asked by Tina on July 14, 2011
  31. Chemistry

    Nitrogen Monoxide reacts with hydrogen gas to form nitrogen gas and water (vapor). (i). write a balanced equation for this reaction. (ii). The reaction is experimentally found to be (approx) first-order in H2 and second order in in NO. Write the form if

    asked by Crystal on April 14, 2012
  32. business law

    Personal Bankruptcy In 2005, the U.S. Congress approved a major reform of federal bankruptcy laws. On the Internet, do research on "bankruptcy reform" or equivalent terms. Answer the following questions: a.What were the major reforms made to federal

    asked by animal on May 12, 2008
  33. Physics

    A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

    asked by LL on June 10, 2012
  34. Physics. Please help!

    A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

    asked by LL on June 10, 2012
  35. Physics

    A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

    asked by LL on June 10, 2012
  36. Physics

    A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

    asked by LL on June 9, 2012
  37. physics

    A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

    asked by LL on June 9, 2012
  38. Physics

    A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters.  What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

    asked by LL on June 9, 2012
  39. Human Services

    Summarize legislative tasks and the overall role of the judiciary in shaping public policy. For the same agency or organization you chose previously, describe the laws and judicial decisions that influence how it operates. How do these laws influence the

    asked by Kellly on October 17, 2010
  40. College Algebra

    According to Newton's law of cooling, the rate at which an object cools is directly proportional to the difference in temperature between the object and the surrounding medium. The face of a household iron cools from 130° to 100° in 30 minutes in a room

    asked by Kyle on December 10, 2014
  41. micro

    hi, i need some help with my econ homework. i know what the law is, basically that more isn't always better. i just need to know how to tell if it applies to a labor equation. my problem goes like this. F(K,L) = K + 10L, write expressions for marginal

    asked by saya on February 23, 2012
  42. Chemistry

    The following reaction mechanism has been proposed for a reaction: (slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A. Write the equation for the overall reaction from the mechanism above. B.Write the rate law for the reaction

    asked by Michael on January 20, 2011
  43. Chemistry

    The following reaction mechanism has been proposed for a reaction: (slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A. Write the equation for the overall reaction from the mechanism above. B.Write the rate law for the reaction

    asked by Michael on January 20, 2011
  44. Chemistry

    The following reaction mechanism has been proposed for a reaction: (slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A. Write the equation for the overall reaction from the mechanism above. B.Write the rate law for the reaction

    asked by Michael on January 20, 2011
  45. History

    How did African Americans support the war effort? A:Slaves and free blacks fought for the Confederacy B:Enslaved African Americans spied on the Union troops and the Confederacy. C:By law, African Americans were forbidden from supporting the was effort on

    asked by Marylyn on October 21, 2016
  46. Physics

    a) Newton's law of motion states that the acceleration acting on a falling body (assuming no other forces) is  x" = -g, where x(t) is the height of the object above the ground, t is time, and g is the gravitational constant. Find a general expression to

    asked by Jane on October 19, 2009
  47. chemistry

    A studen is asket to calculate the amount of heat involved in changing 10.0 g of liquid bomine at room temperature (22.5 C) to vapor at 59.0 C. To do this, one must know specific heat (0.474 J/g*C), boiling point (59 C), and heat of vaporization (29.6

    asked by Lena on March 31, 2011
  48. Physics

    a) Newton's law of motion states that the acceleration acting on a falling body (assuming no other forces) is  x" = -g, where x(t) is the height of the object above the ground, t is time, and g is the gravitational constant. Find a general expression to

    asked by Jane on October 20, 2009
  49. World History (Ms. Sue)

    I've only written the first half of this paper, but I want your opinion. List the principles of the Magna Carta, the English Bill of Rights, the American Declaration of Independence, the French Declaration of the Rights of Man and the Citizen, and the U.S.

    asked by Victoria on October 7, 2014
  50. Social Studies (Please check these)

    What title best represents the subject of the cartoon? The title is Inch by Inch picture is of a huge door with tiny children trying to push it open a. "Change Is a Long, Slow Process" b. "Education Opens the Door to the Minds" c. "Students Take Early

    asked by Mame on June 4, 2016
  51. Bus law

    Alex was on a coast-to-coast trip by automobile. While passing through Ohio, Alex had a flat tire. It was fixed by Sam’s Turnpike Service Station, and later, while Alex was driving in Indiana, the tire came off and Alex was injured. Alex was hospitalized

    asked by mike on February 20, 2007
  52. Bus law

    Alex was on a coast-to-coast trip by automobile. While passing through Ohio, Alex had a flat tire. It was fixed by Sam’s Turnpike Service Station, and later, while Alex was driving in Indiana, the tire came off and Alex was injured. Alex was hospitalized

    asked by mike on February 19, 2007
  53. math

    How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2? This is really a physics question. The equation that you use is Newton's second law, Force = Mass x Acceleration. In this case, the total mass being accelerated is

    asked by kent on June 12, 2007
  54. Chemistry

    I've tried this problem over and over again, but im not getting the right answers! This is the problem....... Dinitrogen pentoxide, N2O5, decomposes when heated in carbon tetrachloride solvent. N2O5 ¨ 2 NO2 + 1/2 O2(g) If the rate constant for the

    asked by Dena on November 10, 2009
  55. physics

    Jessica's weight is 540 Newtons. According to the Third Law, if the Earth pulls on Jessica with a force of 540 N, then Jessica pulls on the Earth with a force of 540 Newtons that acts in the opposite direction. However, if Jessica stumbles while

    asked by Anonymous on August 12, 2010
  56. physics

    Jessica's weight is 540 newtons. According to the Third Law, if the Earth pulls on Jessica with a force of 540 N, then Jessica pulls on the Earth with a force of 540 newtons that acts in the opposite direction. However, if Jessica stumbles while

    asked by Anonymous on January 1, 2010
  57. Science

    What does the law about superposition tell you about the relative ages of rocks? a. that the deeper you go into rock layers, the older the rocks are b. that the deeper you go into rock layers, the younger the rocks are*** c. that the oldest rock layer is

    asked by Lou on September 16, 2018
  58. english

    1.Antigone decides to bury her brother in defiance of the law. Her sister argues against it. Summarize the two sides of the argument, and explain Antigone's reasons for doing as she does. 2.Creon says that it would be wrong for him to listen to the

    asked by Julissa on April 7, 2015
  59. Physics

    At the start of your throw of a 5.6-kg bowling ball, your arm is straight behind you and horizontal (Figure 1) . Your arm is 0.64 m long, has a rotational inertia of 0.48 kg⋅m2 and has a mass of 3.5 kg with its center of mass 0.28 m from your shoulder

    asked by Cosmo on March 27, 2016
  60. Chem

    A student was performing an extraction procedure of o-Xylene from water into octanol. The total mass of o-Xylene was 0.10 gram (molecular weight 106.2 g/mole). The volume of water was 990mL and volume of octanol 10 mL. There is a head space of 200 mL above

    asked by Sahara on August 1, 2013
  61. Second solution for ambiguous case?

    Given a = 31.5, b = 51.8, A = 33 degrees, find the value of c in triangle ABC. bsinA = 51.8sin33 = 28.21 -> bsinA < a < b so there are two solutions Using sine law: sinB/b = sinA/a sinB/51.8 = sin33/31.5 sinB = 51.8 * sin33/31.5 sinB = 0.895628635 B =

    asked by K on July 17, 2018
  62. FIN

    If a good friend of yours has had serious financial misfortunes lately and is unable to meet her debt payments, what advice can you give? Be sure to include the topic of bankruptcy because she has heard that it eliminates all your credit problems. In your

    asked by Anonymous on June 12, 2006
  63. eco365

    Write a paper of no more than 1,750 words analyzing the current market conditions of the organization or industry you selected. Address the following topics: • Market structure • Effect of new companies entering the market • Prices • Technology •

    asked by Anonymous on October 24, 2012
  64. psychology

    Paul thinks of himself as an excellent negotiator after purchasing a brand new car.two months later,his brother in -law Noah purchases the same model for $1,000 less than Paul paid!According to cognitive dissonance theory,Paul will probably: a)decide that

    asked by vedrana on October 16, 2009
  65. History

    6.)During resistance efforts, how did Elijah Parish Lovejoy die? A.)He was an escaped slave who also speak out against slavery, & he was caught & hanged for his defiant opposition. B.)He was a sea caption who helped slaves escape, & U.S Marshals arrested

    asked by #FreeGucci on April 4, 2016
  66. Introduction to the Criminal Justice System

    There is a large round up of gang members, this is a federal case but is being supported by about 50 local officers and state troopers. I need help please, coordinating he informaiton for briefing on the jprocess at the federal court building. the briefing

    asked by Jo on December 1, 2006
  67. chemistry.

    The concentration of hydrogen sulfide, H2S, in hot springs is relatively high. This accounts for the rotten-egg smell around the "mud pots" in Yellowstone National Park. The solubility of hydrogen sulfide in water at 25 degrees Celsius is 0.0932 M at 1.00

    asked by CRISTINA on February 20, 2007
  68. Chemistry

    The lab we are doing is: Determining the ENTHALPY of a Chemical Reaction. There are three reactions. Reaction 1: NaOH + HCl, Reaction 2: NaOH + NH4Cl, and Reaction 3: HCl + NH3. I found the max temp, initial temp, and temp change of each reaction. Can you

    asked by Rina on October 30, 2017
  69. Physics

    Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance between the two charges? So let's say I use Coulomb's law would the repulsion of 175 N be considered the equivalent of the

    asked by Pablo on January 17, 2011
  70. calculus related rates

    Boyle’s law for the expansion of a gas is PV = k, where P is the pressure (in pounds per unit of area), V is the volume of the gas, and k is a constant. Find the expression that shows the rate of change of the pressure as related to the rate of change of

    asked by Bill on November 12, 2014
  71. BUSINESS LAW

    In the video game Corporate Cowboy, your task is to investigate complaints of wrongdoing on the part of corporate directors and officers, decide whether there is a violation of the law, and deal with the wrongdoers accordingly. Jane, a shareholder of

    asked by Marie on March 8, 2011
  72. law

    In the video game Corporate Cowboy, your task is to investigate complaints of wrongdoing on the part of corporate directors and officers, decide whether there is a violation of the law, and deal with the wrongdoers accordingly. Jane, a shareholder of

    asked by mark on June 7, 2011
  73. busineslae

    In the video game Corporate Cowboy, your task is to investigate complaints of wrongdoing on the part of corporate directors and officers, decide whether there is a violation of the law, and deal with the wrongdoers accordingly. Jane, a shareholder of

    asked by jiji on March 11, 2011
  74. Chemistry

    The reaction 2NO (g) + 2H2 -> N2 (g) + 2H2O (g) was found to follow the rate law, rate = k[NO]^2[H2]. By what factor will the rate of reaction increase when the pressure of NO gas is increased from 2.0 atm to 3.0 atm? Assume all other conditions are held

    asked by Mikey on July 14, 2016
  75. statistics

    26. The law of permutations, combinations, and filling slots are the counting rules used to (a) determine the total number of possible outcomes (b) determine all possible combinations of “n” objects from a total of N objects (c) determine the odds of

    asked by meri on June 30, 2015
  76. criminal justice

    Make up a federal case against a fictitious criminal offender. Use your knowledge to develop the circumstances and details that would be involved. In your assignment, provide a description of the criminal offender, including the type of crime committed and

    asked by shenika francis on August 28, 2010
  77. History

    Which of the following best describes the 1823 Treaty of Moultrie Creek? A.) The Seminoles had to move to the Creek Reservation in exchange for cattle, hogs, farming tools, and food for one year. B.) The Seminoles were given three years to move west of the

    asked by jai on March 7, 2016
  78. physics (last problem)help

    On a calm, bright day, you're scuba diving in a deep lake (n = 1.33), 5.40 m from your sailboat. When you are 3.10 m below the surface, the top of the sailboat mast appears to you to be in a direction 40.0° from vertical. Calculate the height of the mast

    asked by RUdi on September 3, 2010
  79. World History

    Which accurately describes the Roman Empire's influence on modern Western governments? a) The Romans invented a law code detailing the rights and duties of citizens and defined the legal process. b) The Romans invented an oligarchy government that spread

    asked by Taryn H. on August 22, 2018
  80. english

    Assignment: Ethics and Law Presentation • Due Date: Day 7 [post to the Individual forum] • Create a 10- to 15-slide Microsoft® PowerPoint® presentation comparing and contrasting the roles that ethics and laws play within organizations. Include

    asked by fay1985 on December 13, 2008
  81. US History

    Can somebody help with my son's study guide? Thank you! What did the Supreme Court cases and the ultimate outcome for the Cherokee suggest about future dealings between the United States government and Native Americans? (3 points) The U.S. government would

    asked by Haley on February 28, 2013
  82. College Chemistry lab

    How do I Calculate the concentration of iron(lll) with absorbance measurement. Wavelength is 480nm, solution is 1 ml FeCl3 : 9ml HCl, absorption is .250A, concentration of stock FeCl3 solution is 0.00050M and stock HCl solution is 2.0M. I not sure how to

    asked by Hannah on October 13, 2014
  83. Chemistry - solubility, not "Methode Champenoise"

    Is CO2 soluble in ethanol? I know that CO2 is nonpolar, so that means it's soluble in nonpolar solvents, but CO2 is soluble in H2O. H2O is polar. Also, if CO2 were obeying Henry's Law, would it be soluble in ethanol at a high pressure?

    asked by Alex on December 12, 2012
  84. Chem

    RXN #1: H2 (g) + O2 (g) --> H2O2 (l) ; delta-H =? Calculate the enthalpy change (delta-H1) for the reaction above (RXN #1) using the information below and Hess' Law. RXN A: H2O2 (l) --> H2O (l) + 1/2 O2 (g); delta-H=-98.0 kJ/mol RXN B: 2 H2 (g) + O2 --> 2

    asked by Ally on July 13, 2011
  85. Essay

    I had to right an essay in English and i was wondering if anyone could critique it. The topic is "Once you have completed your education, would you return to your hometown to begin your adult life? Why/Why not?" Here is my Essay: I have lived in the

    asked by Amanda on September 16, 2007
  86. Physics (Please check)

    Calculate the index (n water) of refraction of water given the angle of incidence and the angle of refraction. I know that the accepted value for n is 1.33 but I am not sure how to calculate the index. Would I use Snell's law: na sin Qa = nb sin Qb? Thank

    asked by Hannah on November 5, 2013
  87. Economics

    Consider the problem of a firm that needs to decide how much output, denoted by x, to sell. The marginal revenue function of the firm is given by 10−x. It's marginal cost function is goven by x. In addition, the firm faces a legal constrain: it is

    asked by Kamini on January 6, 2015
  88. Check my answered questions.

    For the combining gas law P1V1/T1=P2V2/T2 home work assignment I did three answers on my own and would like you to check them if they are right. If for some reason the answers that I provided don't seem correct please provide me with the right answers.

    asked by Lizy on May 2, 2008
  89. Physics

    A revolutionary cannon, with a mass of 2000kg, fires a 20kg ball horizontally. The cannonball has a speed of 140m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally. What is the speed of the cannon

    asked by puff puff on September 19, 2006
  90. Physics

    A boy exerts a horizontal force of 111 N on a box with a mass of 32.7 kg. HINT - (a) Make a free-body diagram and apply the x-component of Newton's second law. (b) Apply the relationship between static friction and the normal force. (a) If the box doesn't

    asked by Doug on October 3, 2018
  91. criminal justice

    1. What were the main duties of the earliest constables? A. Inspect the arms of the parish and assist the sheriff with law enforcement B. Enforce traffic laws C. Return slaves to plantation owners D. Provide security to the King of England is it D 2. What

    asked by Amy on April 7, 2014
  92. chem

    Carbon dioxide gas has a Henry's law constant of 4.48×10-5 M/mmHg at 25.0 °C when dissolving in water. If the total pressure of gas (CO2 gas plus water vapor) over water is 1.00 atm, what is the concentration of CO2 in the water in grams per milliliter?

    asked by james on February 18, 2016
  93. Economics

    The law of increasing costs means that as production shifts from one item to another, A. the cost of production gets cheaper and cheaper. B. the cost of producing an item stays the same no matter how many are produced. C. more and more resources are

    asked by Nirvana on January 29, 2016
  94. Psychology

    Which phenomenon does the following example illustrate? When you begin your first year of college, the tuition is $12,000. At the beginning of your second year of college the tuition has been raised by $200, but you do not notice. However, upon returning

    asked by Mitch n' Joey on October 30, 2017
  95. physics

    A force of 2-Newtons will stretch a rubber band 2/100 meters. Assuming that Hooke’s Law applies, how far with a force of 4-Newtons stretch the rubber band? How much work does it take to stretch the rubber band this far?

    asked by ChrismB on April 27, 2016
  96. physics

    A 500g ball is dropped into a well that is 10m deep. A)What is the ball's potential energy before it is dropped? Take the bottom of the well to be at zero height. I solved by using PE=mgh and came up with 49J. B) What are the kinetic energy and potential

    asked by Mack on December 5, 2011
  97. Physics

    A 500g ball is dropped into a well that is 10m deep. A)What is the ball's potential energy before it is dropped? Take the bottom of the well to be at zero height. I solved by using PE=mgh and came up with 49J. B) What are the kinetic energy and potential

    asked by Mack on December 4, 2011
  98. Chemistry

    Experiment 1: A has .20 M, B has .20 M and the initial rate is 2.0*10^-4M/min Experiment 2: A has .20 M, B has .40 M, and the initial rate is 8.0*10^-4M/min Experiment 3: A has .40 M, B has .40 M, and the initial rate is 1.6*10^-3M/min Using the data

    asked by Finn on August 21, 2015
  99. Chemistry!!!!

    1. For a reaction mechanism to be plausible, what 2 criteria must be met? 2. The reaction between CO and NO2 to produce NO and CO2 is thought to occur in 2 steps. NO2 + NO2 ====> NO + NO3 NO3 + CO =====> NO2 + CO2 The experimental rate law is, R=k[NO2]2

    asked by Michelle on February 12, 2015
  100. Chemistry!!!!

    1. For a reaction mechanism to be plausible, what 2 criteria must be met? 2. The reaction between CO and NO2 to produce NO and CO2 is thought to occur in 2 steps. NO2 + NO2 ====> NO + NO3 NO3 + CO =====> NO2 + CO2 The experimental rate law is, R=k[NO2]2

    asked by Michelle on February 12, 2015