Popular questions and responses by Josie
  1. Physics

    A cook puts 7.20 g of water in a 2.00-L pressure cooker that is then warmed to 530°C. What is the pressure inside the container? (Assume room temperature is 20°C.)

    asked on June 22, 2013
  2. Physics

    Three uniform spheres of masses m1 = 3.50 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the corners of a right triangle (see figure below). Calculate the resultant gravitational force on the object of mass m2, assuming the spheres are isolated from the

    asked on June 20, 2013
  3. math

    if sec 0= -7.3, find sin (0- pi/2).

    asked on September 23, 2019
  4. math

    if cos 0= 0.5 find csc (0- pi/2)

    asked on September 23, 2019
  5. Math

    There are 41 students in group 2. Twice as many students play the trumpet as play the trombone, but 8 students play the saxophone. How many students in Group 2 play each instrument? Endless thanks

    asked on November 4, 2015
  6. geometry

    ray EC bisects angle BED, The measure of angle AEB equals 11x minus 12.and The measure of angle CED equals 4x plus 1.. Find measure of angle AEC.

    asked on June 30, 2016
  7. Calc

    Use a graph to estimate the limit: lim θ->0 (sin(5θ)/θ) Note: θ is measured in radians. All angles will be in radians in this class unless otherwise specified. I tried graphing it on my calculator but the limit I got is incorrect.

    asked on January 25, 2011
  8. Algebra

    Help Please! 2n(x-n)=x-5n+2 Solve for X

    asked on December 6, 2012
  9. algebra

    A boat can travel 16 km/h against the current.The same boat can travel 30 km/h with the current.find the rate of the boat in still water and the rate of the current. Could someone help seams like an easy problem, but I am not getting there.Thank YU

    asked on March 14, 2013
  10. Math

    The revenue obtained from the sale of q units of a product is given by : R= 30q-(0.3q^2) A) How fast does R change with respect to q when: q=10 B) Find the relative rate of change of R, and to the nearest percent, find the percentage rate of change of R.

    asked on January 9, 2017
  11. chemistry

    Why is respiration an exothermic reaction?

    asked on June 18, 2014
  12. Algebra

    Total revenue is the total amount of money taken in by a business. An appliance firm determines that when it sells X washing machines, the total revenue, R, in dollars, is given by the polynomial R=232.94x-0.1x^2. What is the total revenue from the sale of

    asked on February 25, 2014
  13. Algebra

    Total revenue is the total amount of money taken in by a business. An appliance firm determines that when it sells X washing machines, the total revenue, R, in dollars, is given by the polynomial R=232.94x-0.1x^2. What is the total revenue from the sale of

    asked on February 25, 2014
  14. chemistry

    The vapor pressure of dichloromethane, , at 0 is 134 . The normal boiling point of dichloromethane is 40. . Calculate its molar heat of vaporization

    asked on January 20, 2010
  15. Music

    Mozart worked to develop many sonatas. What is one part of his sonatas? A. Climax B. Exposition C. Cadence D. Appendix I don’t know the answer and I need help soon, I think it might be A but I don’t know.

    asked on May 15, 2020
  16. Physics- refraction

    Hi, We had a lab on refraction. They gave us a print out of the word carbon dioxide and placed it under a test tube. The letter a and r in the word carbon flipped in the experiment. I wanted why is it that only these 2 letters flipped and not the others?

    asked on August 14, 2018
  17. Art help with checking plzzzzzz

    Could someone please help me check these??? When using a green screen for filming, the 3d element Is: A) The green screen B) The actor or actress*** C) The specialized software D) The Image on the green screen How did the city of Venice Beach decide to

    asked on November 27, 2017
  18. College Physics

    Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1050Kg and was approaching at 8.00m/s due south. The second car has a mass of 700Kg and was approaching at 20.0m/s due west. A) Calculate the final velocity

    asked on April 16, 2015
  19. Chemistry

    What type of reaction is photosynthesis, the process where carbon dioxide combines with water to form glucose in the presence of sunlight?

    asked on June 18, 2014
  20. chemistry

    In an experiment, Ann mixes concentrated sulfuric acid with water in a reaction test tube. The walls of the test tube turn hot. What type of reaction has occurred?

    asked on June 18, 2014
  21. Physics

    A 2.60-mol sample of oxygen gas is confined to a 5.03-L vessel at a pressure of 7.95 atm. Find the average translational kinetic energy of the oxygen molecules under these conditions.

    asked on June 22, 2013
  22. Physics

    A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road. The curve may be regarded as an arc of a circle of radius 37.9 m. If the coefficient of static friction between crate and truck is

    asked on June 1, 2013
  23. Physics

    A JFET has a specified pinch-off voltage of -5V. When VGS = 0, what is VDS at the point where ID becomes constant?

    asked on March 9, 2012
  24. Chemistry

    Perform the following calculations to the correct number of significant figures. (89.6-23.981)/0.0047

    asked on January 30, 2012
  25. home economics

    explain the term energy balance

    asked on January 4, 2010
  26. Precalculus

    The population of a southern city follows the exponential law. If the population doubled over 20 months and the current population is 70,000, what will the population be 5 years from now

    asked on November 14, 2019
  27. Science

    A hurricane becomes more powerful by evaporating water from?

    asked on March 13, 2019
  28. English

    what norms does society value and reinforce,and what have i internalized

    asked on August 20, 2018
  29. Hey guys, Could you help me check some art questio

    Here are a few answers I need to be checked, I hope thats Okay :) Most street artists make commercial art Yes No*** Video footage Is now a standard part of the news True False*** All of the following would be part of a franchise branding Except Creating a

    asked on November 22, 2017
  30. English

    What does "present day culture" refer to? Is it just things that go on today, such as drugs and new technologies?

    asked on August 20, 2017
  31. Eng Lit

    Why did Shakespeare make Juliet so young when compared to Arthur Brooke's and Matteo Bandello's original version of Romeo and Juliet?

    asked on June 5, 2017
  32. tech

    do catapults use an overhand or underhand motion? what about pendulums?

    asked on April 25, 2017
  33. Chemistry

    "What volume of water must be added to 100ml of 15 M of H2SO4 to dilute to 5.0M?" I've tried using lots of different methods but keep having the same answer and don't know if the answer book is wrong or if it's me. Thanks!

    asked on January 18, 2017
  34. hypothesis

    Why is it important to test the results of a hypothesis?

    asked on January 15, 2017
  35. Math

    Purchased 297 square feet of carpet at $18.50 a square yard, what is the cost? 297 / 9 = 33 yards X $18.50 =$610.50 Do I divide by 3 again to get $203.50?

    asked on December 14, 2016
  36. Math

    (4 to the second power divided by two)subtract 2 to the second power plus five

    asked on November 2, 2016
  37. Math

    Simplify this expression. -12÷3•(-8+(-4^2)-6)+2. I'm confused on how to solve this. Thank you for the help.

    asked on September 9, 2015
  38. Algebra-VERY IMPORTANT

    Given the polynomial x^2+10x+k Find all the values of k so that this given polynomial is factorable

    asked on April 21, 2015
  39. Math

    a baseball team played a total of 138 games last season. They had 26 fewer wins than losses. How many games did the team win?

    asked on November 3, 2014
  40. physics

    A ball is thrown directly downward with an initial speed of 3.08 m/s from a height of 14.6 m. After what interval does the ball strike the ground? The acceleration of gravity is 9.8 m/s 2

    asked on September 22, 2014
  41. Algebra

    Solve using the appropriate method. 0.05x+0.25y=66 0.15x+0.05y=72 I came up with the answer (420,180) Is this correct? a)The solution is___?(simplify your answer. Use integers or fractions for any numbers in the expression. Type an ordered pair)

    asked on February 22, 2014
  42. Physics

    You are pulling a crate across the floor. The crate has a mass of 75.0 kg. You exert a horizontal force of 120. N to the left. Friction exerts a force of 82.0 N to the right. What is the magnitude (fill in box) and direction of the acceleration of the

    asked on February 5, 2014
  43. AP Calculus AB

    Find the derivative of: y=(cosx)^3-(sinx)^3

    asked on January 3, 2014

    If a boy(500N) wishes to slide down a rope that has a breaking stand of 350N, then: (a) with what acceleration must it move downward in order to not break the rope. (b) if he slide 30m, how long will it take? (c) how fast will he be going before he hits

    asked on November 30, 2013

    The tension in the cable supporting a 4900N elevator is 3800N. What is the acceleration of the elevator?

    asked on November 30, 2013
  46. English

    We plant two bean seeds in different pots. What's the subject?

    asked on September 4, 2013
  47. physics

    The free-fall acceleration on the surface of Jupiter is about two and one half times that on the surface of the Earth. The radius of Jupiter is about 11.0 RE (RE = Earth's radius = 6.4 106 m). Find the ratio of their average densities, ρJupiter/ρEarth.

    asked on June 16, 2013
  48. Physics

    You are standing on top of a building that is 75-m high and you throw a 3-kg stone horizontally at a speed of 5.4-m/s. How far from the base of the building will the stone land? (the ground is flat)

    asked on March 11, 2013
  49. algebra

    A shipment of 18 cars, some weighting 3000lbs a piece, and the others weighing 5000 lbs each, has a total weight of 30 tons. Find the number of each kind of car. I start of saying X+Y = 18. THen I turn that into X=18-Y. whats next?? thank you for helping

    asked on March 6, 2013
  50. algebra

    Solve the following system of equation using the graphing method. Y = negative X Y = X + 9 Don't know what to do. Thank u if u can helpme.

    asked on March 2, 2013
  51. algebra

    what number minus 25% equals 6000?

    asked on January 6, 2013
  52. algebra

    a minus the fraction a^2-a-6 over 2(a-3) thank you

    asked on January 3, 2013
  53. algebra

    please help because am missing something.thankyou factor completely given that x+2 is a factor. 2x^3 + 7x^2 - 3x - 18

    asked on January 2, 2013
  54. Algebra

    Didnt write my question too good last time so here is what I meant. This is a mixed ezpression written as fraction and then to be put in simplest form. 3/1 minus 2x-2/x^2-1 thank you

    asked on December 31, 2012
  55. Algebra

    Didnt write my question too good last time so here is what I meant. This is a mixed ezpression written as fraction and then to be put in simplest form. 3/1 minus 2x-2/x^2-1 thank you

    asked on December 31, 2012
  56. algebra

    Please help THANKS write as a fraction in simplest form (a/b +1)(b/a-1)

    asked on December 31, 2012
  57. algebra

    3 - __2X-2______ X^2-1 Write the expression as a fraction in simplest form. 3 minus 2x-2 over xsquared minus 1 Can anyone help?

    asked on December 31, 2012
  58. Algebra

    What is 2a^2 over 4b times b^2 over a^2 or what is 2a squared over 4b, times b squared over a squared ? Thankyou

    asked on December 10, 2012
  59. pre-calc

    F(x)= x^2+x-12/ x^2-4 find the x and y intercepts and find x when f(x)=1

    asked on November 16, 2012
  60. algebra

    For the statement that says: b + (-a) = b - a What property would that be? Is it the addition property of equality? or something else.

    asked on October 13, 2012
  61. Algebra

    The total amount of water in 2 containers is 35quarts. If 7 quarts gets poured from the container with less water into the continer with more water, the container with more water will have 4times as much water as the other container. How many quarts are in

    asked on October 13, 2012
  62. University of Phoenix

    target marketing in contrast to mass marketing

    asked on August 12, 2012
  63. HCA 270

    What is the relationship between inventory and cost of goods sold by a pharmacy or medical supply business? Explain the depreciation concept. What items in a physician practice can be depreciated? What is the purpose?

    asked on May 7, 2012
  64. Chemistry

    1. What mass of carbon is required to produce 100kj of heat, when burned in air? Enthalpy change = -392kj. 2. What mass of methanol is required to produce 1000kj of heat, when burned in air?

    asked on April 27, 2012
  65. algebra

    Kayla Wants To write an Expression that will always produce an odd integer. Which of the Following will always produce an odd integer for any given integer ?

    asked on April 9, 2012
  66. science

    An object is traveling in a straight line in space.No forces are affecting it. What will happen to the object's motion?

    asked on March 24, 2012
  67. science

    A book is on top of a table. Earth's gravity exerts a constant force of 15N on the book. Why does the book not move as a result of this force?

    asked on March 24, 2012

    Use implicit differentiation to find the equation of the tangent line to the curve xy^3+xy=5 at the point (4,1) . The equation of this tangent line can be written in the form y = mx+b where m is:? and where b is:?

    asked on March 2, 2012
  69. math

    at the beginning of the week a particular stock sold for 29 3/8 per share. at the end of the same week it sold for 31 2/8. what was the amount of inctrease per share?

    asked on May 28, 2011
  70. Calculus

    For f(x)=lnx, construct tables, rounded to four decimals, near x=1, x=2, x=5, and x=10. Use tables to estimate f'(1), f'(2), f'(5) and f'(10). Then guess a general formula for f'(x).

    asked on January 29, 2011
  71. english

    can you answer this one into correct dangling modifier.Having wrapped up the package carefully it should be tied.

    asked on December 5, 2010
  72. Physics

    A 0.400 kg block of wood hangs from the ceiling by a string, and a 0.0700 kg wad of putty is thrown straight upward, striking the bottom of the block with a speed of 5.80 m/s. The wad of putty sticks to the block. Is the mechanical energy of this system

    asked on November 14, 2010
  73. chemistry

    if you have 5 moles of conjugate acid, 2 moles of base, and 2 moles of acid. What is the dissociation constant for his reaction and the temperature is 30 degree celcius?

    asked on September 16, 2010
  74. science

    I am doing a case study on MMR and MMR/Autism. The question I have been given is 'Does MMR cause autism?" Please can you suggest any websites etc. I need to find at least 5 sources to show for and against. Many thanks.

    asked on May 2, 2010
  75. law

    what are laws

    asked on March 3, 2010
  76. law

    what are laws

    asked on March 3, 2010
  77. English

    How do you change the sentence "Muscle relaxation can help you." to a question?

    asked on December 14, 2009
  78. Algebra

    I need help solving these three problems. 1/4(7 + 3g) + -g/8 Twice the greater of two consecutive odd integers is 13 less than three times the lesser number. Find the integers. About 4.9 million households had one brand of personal computers in 2001. The

    asked on October 27, 2009
  79. Science

    What happens to the volume of a gas inside a piston if the termperatue does not change but the pressure is reduced?

    asked on October 11, 2009
  80. Science

    I have two questions. 1. Describe what would happen if you rubbed a mineral with a Mohrs hardness value of 7 against a mineral with a value of 5? 2. Which mineral identification test would be easy for a person to perform at home. Which would be difficult.

    asked on October 1, 2009
  81. Science

    How many gigameters are in $1,000,000,000,000 micrometers?

    asked on September 21, 2009
  82. 4th grade

    why did californios trade with people from other countries during the Mexican war for independence even though it was against the law?

    asked on April 8, 2009
  83. english

    when the legends die by hal borland when tom reflects that he succeeded in killing the past, what does he mean? why did he need to kill it, and how did he? please please help me .

    asked on March 11, 2009
  84. American Literature

    What is the tone in The Legend of Sleepy Hollow?

    asked on July 11, 2008
  85. algebra

    1. How to find the numbers, if there are any, at which f has a realtive minimum. What is the realive minima? The graph that I have looks like W, it has point at -1 on the x axis, 1 on the y axis, and 1 on the x axis. Choices that I have: a. f has a

    asked on September 1, 2007
  86. Algebra

    Write an equation for the translation so the graph has the given vertex. 1. y=-|x| vertex (-5,0) 2. y=2|x| vertex (-4,3) 3. y=-|x| vertex (p,q) I really have no idea how to even begin these, but I do know the answer to # 2 is y=2|x|+11 and #3 is y=-|x-p|+q

    asked on October 5, 2006
  87. Physics

    Note: I am in Algebra-based Physics Two 35.0 N weights are suspended at opposite ends of a rope that passes over a light, frictionless pulley. The pulley is attached to a chain that is fastened to the ceiling. Start solving this problem by making a

    asked on September 30, 2006
  88. Physics

    Note: I am in Alegebra-based Physics. You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.2 N force, it moves 16.3 m in the

    asked on September 30, 2006
  1. Music

    Thank you Alyssa! That helped a lot :)

    posted on May 15, 2020
  2. Math

    Anonymous is 100% correct I promise

    posted on April 21, 2020
  3. Chemistry

    Sorry I meant A!!

    posted on April 17, 2020
  4. Chemistry

    C :)

    posted on April 17, 2020
  5. SS help plz

    They are exactly RIGHT!

    posted on February 5, 2020
  6. History

    Yes yawl are right!

    posted on January 24, 2020
  7. geography

    helper human is correct I got 100% thank you. Oh yea it’s for the pre-test on African history. Connexus

    posted on January 22, 2020
  8. Math

    Good to know im not the only one struggling with Saxon math. (I assume this is what those problems are from as they are in my book)

    posted on January 10, 2020
  9. Art help with checking plzzzzzz

    Actually, I found out It Is Unity, Not Aesthetics for the third one I had put down, And, for the fourth one I put down, It Is, As Editor Is to book, Thanks for the help!!

    posted on November 27, 2017
  10. Hey guys, Could you help me check some art questio

    For 2, I meant true, sorry :)

    posted on November 22, 2017
  11. math


    posted on September 22, 2017
  12. English

    I just want to thank you all here for putting in time to help students. I really appreciate it!

    posted on August 20, 2017