1. Finance

    How do you determine the value of a 1,000 bond with a 7 percent coupon rate maturing in 20 tears for an investor whose required rate of return is 8 percent? Please show formula and result

    asked by Angel on October 30, 2008
  2. Precalculus

    * I know how to graph this but I don't know how to punch the equation in correctly. I am not sure about the window either.. How can I type this equation in the graphing calculator? y=pi(25-x)^2 • 2x Note, the 2x is NOT multiplied by 2.. Show how I can

    asked by Anonymous on May 29, 2014
  3. physics

    A particle starts frm a point with a velocity of 6m/s and moves with an acceleration of (-2m/secondsquare). Show that after 6 seconds the particle will beat the starting point ? Plz explain....

    asked by Maihul on July 5, 2012
  4. MATH 7th GRADE

    Vicki measured the length of 8 leaves. The lengths were 10 cm, 12 cm, 15 cm, 15 cm, 19 cm, 11 cm, 18 cm, and 15 cm. What is the interquartile range of Vicki's data? answer choices are: a. 1 b. 3 c. 5 d. 6 I chose 5 and it says that 6 is the correct answer.

    asked by MATH HELP PLEASE on May 8, 2011
  5. Angle of elevation

    A rocket fired straight up is tracked by an observer on the ground a mile away. a)Show that when the angle of elevation is theta, the height of the rocket in feet is h=5280tan(theta).

    asked by Kris on February 6, 2014
  6. statistics

    Determine the probability that a sample of 49 boxes will have a mean weight below 365grams. past records show that the population mean is 368 grams and the population standard deviation is 7. the probability will be between

    asked by wanda on November 30, 2011
  7. chemistry

    400 cm3 of 0.5mol/dm3 hydrochloric acid was reacted with 5g of magnesium oxide. Calculate the mass of reacted oxide? Show the steps and thq..

    asked by vigor on February 17, 2011
  8. Pre-Cal

    given the function y=2sin3x-1, identify the following below. also show its graph for the primary cycle. (identifying parts of a trig. equation) asymptotes= k= c= axis= primary cycle= period=

    asked by Kim on March 6, 2012
  9. Math

    Ziggy earned $7.50 per hour plus an additional $100 in tips in Saturday. He earned more than $145 in all. Write an inequality to show h, the amount of hours he may have worked on Saturday.

    asked by Amy on March 7, 2017
  10. Social studies

    “Immigrants who arrive in American cities are poor and frightened. They are helped to find jobs and housing. These newcomers should show their gratitude at voting time.” Who most likely would have said this? Political boss Factory owner Labor union

    asked by Social studies on February 15, 2017
  11. SS

    "Immaigrants who arrive in American cites are poor and frightened. they are helped to find jobs and housing. These newcomers should show their gratitude at voting time" Who most likely would have said this? A-political Boss--- B-Factory owner C-labor union

    asked by someone on April 6, 2017
  12. psychology

    As it turns out, children whose mothers took diethylstilbestrol during pregnancy A show serious mental deficts by age five B have higher infertility rates when grown C are more likely to develop lung cancer late in life D are more likely to engaged in

    asked by tzeni on January 7, 2009
  13. English

    In Catch-22, The Great Loyalty Oath Crusade is one example of The need to show true patriotism in war. The importance of being able to trust companions. The ability of spies to remain hidden despite careful efforts to unmask them. The desire of officers to

    asked by Anonymous on November 16, 2011
  14. American Goverment

    Policy making in the United States is made through incrementalism because (Points : 1) the Constitution prohibits grand sweeping steps. the Madisonian system prevents grand sweeping action. incrementalism is more efficient. incrementalism produces the best

    asked by christopher on May 9, 2015
  15. physics emergency

    m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by mary on November 4, 2011
  16. PHYSICSSS emergency

    = 1.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 60 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.4 kg that hangs vertically. The system starts from rest with the

    asked by Amelia on April 16, 2016
  17. PHYSICS PLS HELP ME EVERYONE

    m1 = 1.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 60 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.4 kg that hangs vertically. The system starts from rest with

    asked by Amelia on April 15, 2016
  18. Physics

    A bullet whose mass is 0.0015kg leaves a 5kg leaves a 5kg rifle at a muzzle velocity of 800 m/s. It strikes a 7kg block of wood and becomes embedded in it. After the bullet hits the rock, what is the speed of the bullet/ block system?

    asked by Lucas on January 15, 2014
  19. physic

    a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller object rests on an inclined plane which is tilted at an angle of theta=40degrees. what are the acceleration of the system and the

    asked by EMMA on July 7, 2014
  20. Trig

    A bridge is built in the shape of a parabolic arch. The bridge has a span of s= 160 feet and a maximum height of h= 25 feet. Choose a suitable rectangular coordinate system and find the height of the arch at distances of 10, 30, and 50 feet from the

    asked by EVJ on July 18, 2011
  21. physics

    m1 = 2.3 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 45 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by john on November 23, 2018
  22. science

    a 150g of a metal at 80degree C is placed in 100cm3 of pure water at 20degree C. the final temperature of the system (metal+water) is 23degree C. what is the specific heat of the metal? i got the ans -0.16 by using formula mCdelta T(water)=mCdeltaT(metal)

    asked by asra on April 9, 2012
  23. PHYSICS

    m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by joe on November 3, 2011
  24. Algebra

    A taxi cab charges $0.55 per mile in addition to a $1.75 flat rate fee. Susie has $10 to spend on a taxi cab ride. The taxi driver will not give anyone a ride unless they are going somewhere that is more than 2 miles away. Model Susie’s situation with a

    asked by TY on December 16, 2016
  25. PHYSICS

    a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller object rests on an inclined plane which is tilted at an angle of theta=40degrees. what are the acceleration of the system and the

    asked by EMMA on July 5, 2014
  26. PHYSICS

    a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller object rests on an inclined plane which is tilted at an angle of theta=40degrees. what are the acceleration of the system and the

    asked by EMMA on July 8, 2014
  27. PHYSICS HELP

    m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by joe on November 6, 2011
  28. PHYSICS HELP

    m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by joe on November 6, 2011
  29. physics

    The pulley system in Figure 6-25 is used to lift a crate of mass m = 41 kg. Note that a chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume that the masses of the chains, pulleys, and ropes are

    asked by Anonymous on October 9, 2014
  30. POL

    Policy making in the United States is made through incrementalism because (Points : 1) the Constitution prohibits grand sweeping steps. the Madisonian system prevents grand sweeping action. incrementalism is more efficient. incrementalism produces the best

    asked by Tatika on March 31, 2013
  31. Chemistry

    At 473 K, for the elementary reaction 2NOCl 2NO + Cl_2 k(1) =0.078 L/mol*s k(-1)=470 L^2/mol^2*s A sample of NOCl is placed in a container and heated to 473 K. When the system comes to equilibrium, [NOCl] is found to be 0.49 mol/L. Find Cl_2 and NO

    asked by Anonymous on September 8, 2011
  32. Biology

    I put them in order, but am not sure. Please take a look? Question: Put the following events of the adaptive immune response in the order they occur. (c) You cut yourself and bacteria enter the wound. (f) A dendrite near the cut phagocytizes some bacteria

    asked by Anonymous on October 9, 2015
  33. Chemistry

    1. Molarity is to moles of solute over liters of solution as molality is to A. molar concentration over molal concentration. B. moles of solute over kilograms of solvent. C. molal concentration over molar concentration. D. moles of solute over moles of

    asked by Jack on September 23, 2011
  34. Social Studies

    What was one similarity between the bill of rights and the Magna Carta? A. Both outlined a structure that gave the government the right to tax its citizens B. Both established a detailed justice system C. Both provided guidelines for ensuring basic citizen

    asked by So confused :( on September 27, 2016
  35. science(check answers)

    Which of the following is a correct description of a tornado A.a large swirling low pressure system that forms over that forms over the warm atlantic ocean B.A winter strom with wind speeds of at least 56 km/h and low visibility C. A violently rotating

    asked by brake down tonight on May 12, 2015
  36. Social Studies

    Which statement best describes the framework of government established by the Constitution? A. The three branches of government defer the majority of power to the states B. A system of checks and balances keeps each of the three branches from having too

    asked by jolly on September 1, 2017
  37. Health and physcal ed.

    kidney stones can be very painful. what prevention methods could you used to keep from developing them? A)Drink a lot of milk wich is full of calcium. B)Drink plenty of water, wich flushes out your system. c)eat plenty of pretien rich foods like fish

    asked by Health and Physical ed on April 10, 2017
  38. history

    the army overthrows the civilian government in the nations capital. the chief of the army staff takes control of national policy-making suspending the free press and the elected assembly. the type of political system now in control is a? 1)direct democracy

    asked by kayci on May 10, 2010
  39. Physics

    An amusement park ride consists of a rotating circular platform 8.26 m in diameter from which 10 kg seats are suspended at the end of 1.14 m massless chains. When the system rotates, the chains make an angle of 16.2 degrees with the vertical. The

    asked by bubba on November 14, 2009
  40. Geography

    17. Why have the people of West Africa started to work at the local level to help their economies? a. They have learned that their governments alone can do little to improve economic conditions b. Foreign countries have stopped all economic aid to West

    asked by y912f on March 19, 2010
  41. math

    determine the area of triangle abc when side ab= square root of x, side bc= square root of x, and side ca= the square root of the square root of x. So how do I solve it. How do I add the square root of x + the square root of x + the square root of the

    asked by Gina on October 24, 2006
  42. chemistry

    The reaction between sodium hydroxide and hydrobromic acid is represented in the equation below: OH- + H+ -> H2O A 62.5 mL sample of 1.86 M NaOH at 22.5 deg Celsius was mixed with 62.5 mL sample of 1.86 M of HBr at 22.5 deg Celsius in a coffee cup

    asked by lola on November 2, 2014
  43. physic

    a golf ball of mass 0.045 kg is moving in the +x direction with a speed of 9.0 m/s, and a baseball of mass 0.145 kg is moving in the -y direction with a speed of 7.0 m/s. What are the magnitude and direction if the total momentum of the system consisting

    asked by jaymark on September 23, 2012
  44. Phsyicsssss helppp

    A 9.5-kg watermelon and a 7.2-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and

    asked by Anonymous on February 12, 2012
  45. PHYSICSSS please helppp ASAP

    A 9.5-kg watermelon and a 7.2-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and

    asked by Anonymous on February 12, 2012
  46. chemistry 116

    A 36.0 g piece of copper at 130.0 C is placed in 50.0 g of water at 20.0 C. What is the temperature (in C) of the water once the system reaches equilibrium? The molar heat capacity of copper is 24.5 J/(mol·K). The specific heat capacity of water is 4.18

    asked by danny on January 27, 2015
  47. Boolean expression Help asap PLEASE

    A control system is needed to alert an attendant for the following situation. Which of the following is the Boolean equation expressing the electronics you would need? Either the tank is filled and the pump is on, or the tank is empty. (Use A = tank

    asked by Adam on June 19, 2013
  48. physics

    three charges are fixed to an x, y coordinate system. a charge of +18 µC is on the y axis at y= +3.0 degree m. a charge of -12 µC is at the origin. last, a charge of +45 µC is on the x axis at x= +3.0 m. determine the magnitude and direction of the net

    asked by lara on April 27, 2010
  49. physics 2 **

    A blacksmith drops a 0.60 kg iron horseshoe into a bucket containing 25 kg of water. (a) If the initial temperature of the horseshoe is 600°C, and the initial temperature of the water is 40°C, what is the equilibrium temperature of the system? Assume no

    asked by kelsey on December 4, 2008
  50. Sociology (Topic;education)

    hi.. am dnt a topic in sociology and the topic is Education.I find this topic quite complicated and difficult, there are so many types of system of education.. what is the Compensatory education,,can 1 also have some examples of this types of education so

    asked by Taskeen on April 17, 2010
  51. Math

    There are 50 small balls in a tub. Some balls are white and some are orange. Without being able to see into the tub, each student in a class of 25 is allowed to pick a ball out of the tub at random. The color of the ball is recorded and the ball is put

    asked by Miles on April 14, 2017
  52. Chemistry

    A calorimetric determination of specific heat and enthalpy of solution was performed. How would each of the following procedural changes affect (higher than the correct value, lower than the correct value, or no change) the value of the specific heat of

    asked by Amy on October 15, 2012
  53. Writing Sentences and paragraphs

    Paragraph 1 Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must

    asked by Sassy on February 16, 2010
  54. Physics

    Two masses are held while suspended on a frictionless pulley.Their masses are 0.250 kg and 0.200 kg. a. Compute for the acceleration of the masses once they are released? b.Find the tension on the string m1 accelerates upward and m2 downward Let a be the

    asked by fluffy on September 10, 2006
  55. Chemistry

    which solution has the highest boiling point? a. 1 mole of NaNO3 in 500 g of water b. 1mole of NaNO3 in 1000g of water c. 1mole of NaNo3 in 750g of water d. 1mole of NaNo3 in 250 g of water The boiling point of water is elevated by about 0.5 degree for a 1

    asked by Kat on March 26, 2007
  56. Alegebra

    The mortgage department of the company is selling two model homes that are located on the same block. The square footage, as well as the type of model, determines the cost of these homes. e) The second home has 200 square feet more than the square footage

    asked by Darla on June 26, 2010
  57. physics

    a submarine fitted with a SONAR system operates at a frequency 50kHz. An enwmy submarine is now moving towards it with a speed of 450km/hr. Find the frequency of the sound received back at the SONAR from the enemy submarine. Velocity of sound in water is

    asked by please Help urgently on May 25, 2016
  58. Chemistry

    for the reaction 4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g) if H = -950kJmol-1, does that mean it's an exothermic reaction? Ooops pressed Post too quickly. Yes it is exothermic. Delta H is negative so heat is lost from the system. If delta H is positive a reaction

    asked by Fiona on April 30, 2007
  59. physics

    A block of mass 2 kg is connected to a freely hanging block of mass 4 kg by a light and inextensible string which passes over pulley at the edge of a table. The 2 kg mass is on the surface of the table assumed to be smooth. Calculate the acceleration of

    asked by Samuel on January 12, 2013
  60. Business management class

    5. The trend toward two-family income has led to A. policies allowing only one family member to work for a company. B. flexible work schedules, pregnancy benefits, and elder-care programs. C. businesses paying lower wages and hiring fewer workers. D. fewer

    asked by April on January 30, 2012
  61. Chem 2

    The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4? N2O4(g) 2 NO2(g)

    asked by Beth on March 5, 2012
  62. science

    The orbital radii of four planets in our solar system are shown in the following table. Orbital Radii Planet Orbital Radii (AU) W 5.2 X 0.72 Y 1.0 Z 19.1 Which planet is likely to experience the highest temperature? W X Y Z I think it is B.x but I am not

    asked by george on May 10, 2018
  63. chemistry

    The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4?      N2O4(g) 2 NO2(g)

    asked by Audrey on November 15, 2010
  64. Physics

    An 87-kg box is attached to a spring with a force constant of 82 N/m. The spring is compressed 11 cm and the system is released. (a)What is the speed of the box when the spring is stretched by 7.0 cm? (b)What is the maximum speed if the box?

    asked by Amy on April 16, 2013
  65. Aviation Security

    Question 1 of 20 Why is microwave holographic imaging not being used as a security measure in U.S. airports? A. The cost is prohibitive. B. It violates the Fourth Amendment rights of passengers. C. It issues too many false alarms. D. Each passenger must

    asked by KC on July 24, 2016
  66. Intermediate Accounting

    The 10% bonds payable of Klein Company had a net carrying amount of $570,000 on December 31, 2006. The bonds, which had a face value of $600,000, were issued at a discount to yield 12%. The amortization of the bond discount was recorded under the

    asked by Jeniffer on February 11, 2010
  67. Chemistry

    25.0 mL of 0.100 M acetic acid (Ka= 1.8 x 10^-5) is titrated with 0.100 M NaOH. Calculate the pH after the addtion of 27.00 mL of 0.100M NaOH. my work CH3COOH + H2O H3O^+ + CH3COO^- 25mL x 0.100 mmol/ml = 2.5mmol CH3COOH 27mL x 0.100 mmol/ml = 2.7mmol NaOH

    asked by Anonymous on June 30, 2010
  68. chemistry

    I cannot figure out how to work this stoichiometry problem with the given equation: Mg+2HCl-->MgCl2+H2 What volume of hydrogen is produced from the reaction of 50.0g of Mg and the equivalent of 75g of HCl What do you not understand about it? It is a

    asked by Carter on February 5, 2007
  69. math

    What are the divisibility short cuts that help you out? Odd numbers can only be divided evenly by another odd number. Even numbers can be evenly divided by either odd or even numbers. 2---Numbers that end in 0, 2, 4, 6, or 8 are evenly divisible by 2.

    asked by chris on December 19, 2006
  70. Social studies

    Here is the question: place the events in order from 1 to 5 : The Normans invade England. ; Germanic tribes settle in the east of Britain. ; England develops a standardized system of coinage. ; Anglo-Saxon kingdoms form. ; England develops a strong

    asked by Gacha Lover on November 16, 2018
  71. algebra

    My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match

    asked by Linda on November 1, 2011
  72. physics

    A 16lb block rests on a horizontal frictionless surface. A cord attached to the block, running horizontally, passes over a pulley whose diameter is 6in, to a hanging block weighing 16lb. The system is released from rest, and the blocks are observed to move

    asked by I Don't Know on April 29, 2015
  73. Physics

    Two point charges, +Q and -Q of mass m, are placed on the ends of a massless rod of length L, which is fixed to a table by a pin through its center. If the apparatus is then subjected to a uniform electric field E parallel to the table and perpendicular to

    asked by Taylor on February 28, 2012
  74. Physics

    Three objects with masses m1 = 7.4 kg, m2 = 11 kg, and m3 = 18 kg, respectively, are attached by strings over frictionless pulleys (M1 hangs off the left side of the table and M3 hangs off the right side of the table with M2 between them on the table). The

    asked by Dug on October 22, 2012
  75. physics

    A tallest vocano in the Solar System is the 24 km tall Martian volcano, Olympus Mons. Assume an astronaut drops a ball off the rim of the crater and that the free fall acceleration remains constant throughout the ball's 24 km fall at a value of 3.7m/s^2.

    asked by Anonymous on September 15, 2007
  76. Algebra

    My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match

    asked by Chioma on December 8, 2016
  77. Physics

    Two point charges, +Q and -Q of mass m, are placed on the ends of a massless rod of length L, which is fixed to a table by a pin through its center. If the apparatus is then subjected to a uniform electric field E parallel to the table and perpendicular to

    asked by Taylor on February 28, 2012
  78. Juvenile Justice

    I need help trying to do a portfolio the assignment is: develope a comprehesive portfolio of information about your group (my selected group is gangs) in the juvenile justice system. These are the things that I have to cover: profile and risk factors,

    asked by Kenneth on August 9, 2008
  79. Written Communication

    Discuss how you would approach creating a negative message for a superior (such as a manager at work or an instructor) versus creating a message for a colleague, subordinate, or fellow student. Answers from previous postings:

    asked by Mimi on June 27, 2007
  80. U.S. GOVERNMENT

    1)Independents are people who have strong party affiliation. A) True B) False 2)About 75% of those eligible to vote did so in the 2000 presidential election. A) True B) False 3)If we are indeed a democracy, a government by the people for the people, then

    asked by Booker Perry on June 26, 2012
  81. physics

    The Figure shows two blocks, block 1 and block 2, held in equilibrium by a massless, unstretchable string. The mass of block 1 is 14.2 kg, the mass of block 2 is 6.2 kg, and the angle theta is 26o The system begins to slip if any additional mass is added

    asked by anonymus on September 10, 2018
  82. WorldHistory

    How was the structure of the Church like that of the feudal system? Feudalism is based on three things: fief, fealty, and faith. Translation: land, loyalty, religion. So basically the Church was a very important part of feudal society because it owned tons

    asked by _ on May 3, 2013
  83. physics

    A 1.16 kg block and a 2.32 kg block are initially at rest on a frictionless, horizontal surface, with a compressed spring of negligible mass between them. When the blocks are released, they move off in opposite directions. If the final velocity of the 1.16

    asked by koko on October 17, 2012
  84. physics

    Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in Figure P5.64. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is µk = 0.25.

    asked by megan on March 3, 2011
  85. biology

    If you inject carbon nanotubes into the body, can we produce antibodies against it? some ideas: - my answer is yes and no... the carbon nanotubes are too large for the t-cell to destroy it; therefore, they won't have an affect. -plus our whole body is made

    asked by david on March 3, 2011
  86. chemistry

    A student designs an ammeter (a device that measures electrical current) that is based on the electrolysis of water into hydrogen and oxygen gases. When electrical current of unknown magnitude is run through the device for 1.00 min , 15.4 mL of

    asked by EBB on April 27, 2016
  87. AED

    I need help: consider that educational goals and standards reflect the goals and standards of the society in which schools exist. Then provide examples of the similiar as well as the differing roles that home,society, and school play in today's educational

    asked by dawn on October 8, 2008
  88. Cost of Accounting

    1-How does an actual system differ from a normal costing systems? What advantages does a normal costing systems offer? 2-Why is it necessary for a company to specify a relevant range of activity when making assumptions about cost behavior? 3- Why is it

    asked by Josephine on September 25, 2009
  89. Physics

    A 0.490-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 25.0N/m . The block rests on a frictionless surface. A 6.00×10−2-kg wad of putty is thrown horizontally at the block, hitting it with a

    asked by Lhaedy on October 25, 2013
  90. math

    Jay rides his 2.0-kg skateboard. He is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. The board now goes forward at 13 m/s. A. Determine Jay’s mass. B. Determine the change in the internal energy

    asked by Maddie on February 1, 2019
  91. physics

    is2A wedge of mass M fitted with a spring of stiftness k is kept on a smoth hrizontal surface. A rod of mass m is kept on the wedge as shown in the figure. System is in equilibrium. Assuming that all the surfaces are smooth, the potential energy stored in

    asked by anil jha on December 15, 2012
  92. World History

    These documents(Declartion of the rights of man and the citizen, English bill of rights, Marna carta , declaration of independence) established a system in which: a.The power of a leader came straight from God b. The individual was more important than the

    asked by Boberto on February 27, 2016
  93. physics

    A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 84°C. The other sample has a mass of 58 g and is originally at a

    asked by Annette on April 29, 2013
  94. Chemistry(Please help)

    For the reaction, 2 SO2(g) + O2(g) == 2 SO3(g), at 450.0 K (Kelvin) the equilibrium constant, Kc, has a value of 4.62. A system was charged to give these initial concentrations, (SO3) = 0.254 M and (O2) = 0.00855 M, and (SO2) = 0.500 M. In which direction

    asked by Hannah on March 14, 2012
  95. Java Programming

    Hi! ____ 6. Which of the following shows a valid header for a method that accepts any number of double values and returns an array of double values? (1 point) a) public static double... convert(double... d) b) public static double... convert(double[] d) c)

    asked by Da Fash on November 22, 2017
  96. microbes and society

    Which of the following is the correct sequence of steps in the scientific method? Answers: a. observation - prediction - hypothesis - observation - hypothesis b. hypothesis - observation - prediction - hypothesis - observation c. observation - hypothesis -

    asked by Amber on February 2, 2017
  97. Physics

    In a rectangular coordinate system, a positive point charge 5.0 nC is placed at the point x=0, y=2.0 cm, and a negative point charge -5.0 nC is placed at x=0, y=-2.0 cm. Both charges have masses 4.0x10^-3 g. Point P is at x=3.0 cm, y=2.0 cm. The electric

    asked by Lyndsay on March 5, 2017
  98. science

    Our solar system lies in A) the central ring of the Milky Way. B) one of the spiral arms of the Milky Way. C) in the galactic center of the Milky Way. D) outside the spiral arms of the Milky Way.

    asked by katelynn on May 10, 2019
  99. Math

    The area of a right triangle is 12 square inches, and the sum of the lengths of the two legs, a and b, is 16 inches. Write a system that could be used to find the lengths of the legs of the right triangle.

    asked by Sylvester on December 2, 2016
  100. chemistry

    We had a Chemistry lab for buffer system, we used HCl and NAOH. We did a graph ( PH vs ml of HCL and NaOH, we told to estimate the buffer capacity using the graph. How to do this?

    asked by Mima on April 14, 2012

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