Popular questions and responses by Daisy
  1. Chemistry

    Consider the following cell: Pt|H2(g, 0.460 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.00 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrogen ion

    asked on March 19, 2012
  2. Ed. Tech

    After creating a column heading and/or typing text within a column, what must you do to move text to the next column? A. Add a column break B. Select the next column and start typing C. Highlight the next column D. Change the page orientation Is the answer

    asked on September 7, 2014
  3. science

    mohan travels at 20m/s from home to market and returns at 25m/s find his average velocity for the entire journey

    asked on May 6, 2017
  4. Chemistry

    What is the specific gravity of alcohol having a density of .79 g/mL?

    asked on September 4, 2012
  5. pre-calculus

    which of the following is a solution to 3tan^3x=tanx? A.) 60 degrees B.) 120 degrees c.)150 degrees D.)240 degrees E.)300 degrees

    asked on July 27, 2015
  6. Pre-calc

    which expression completes the identity sin ucosv=?

    asked on July 27, 2015
  7. pre-calculus

    What is the exact value of sin 225

    asked on July 27, 2015
  8. CHEM

    A student used 10 mL water instead of 30 mL for extraction of salt from mixture. How may this change the percentage of NaCl extracted? My book says: % NaCl= (grams of NaCl / total grams of mixture) x 100 What I don't get is if it does change the

    asked on September 4, 2012
  9. pre-calculus

    find the exact value of sin 112.5 in fraction form

    asked on July 27, 2015
  10. Statistics

    Of the 40 students in a gym class, 13 played volleyball, 12 ran track (4 of whom did a push up), and the remainder were absent. A.) What proportion of the class ran track? B.) What percentage played volleyball? C.) What percentage of the runners did a push

    asked on August 25, 2016
  11. Maths, geography, life sciences and physical scien

    Identify three courses or study fields you are interested in following after grade 12.provide two reasons why you find this a suitable course for each choice

    asked on March 6, 2016
  12. Science

    Calculate the number of atoms of chlorine present in 7.45g of KCL

    asked on February 3, 2020
  13. Math

    1.Quadrilateral GHJK has vertices at the following coordinates: G(-2,-6), H(-8,-8), J(-6,-2), and K(0,0), what would be the new vertices if the quadrilateral was dilated by the scale factor of 1.5? G':_________ H':_________ J':_________ K':_________ Could

    asked on February 7, 2015
  14. Physics

    A man jogs at a speed of 1.7 m/s. His dog waits 2.5 s and then takes off running at a speed of 4.1 m/s to catch the man. How far will they have each traveled when the dog catches up with the man? help me set up the equations please!

    asked on August 24, 2012
  15. Pre-Calculus

    Find the period and, where appropriate, the amplitude of the following function: y=2sin(x)

    asked on April 6, 2008
  16. Pre-Cal

    The diagonal and the longer side of a rectangle make an angle of 43.2. If the longer side is 12.6cm, find the length of the shorter side.

    asked on January 29, 2008
  17. Chemistry

    One type of sunburn occurs on exposure to UV light wavelength in the vicinity of 325nm. How many photons are in 1.00 mJ burst of this radiation?

    asked on November 13, 2007
  18. psychology

    I need some help.... In my study I am doing a comparison of the dual effects of media and society on abnormal eating behaviour in men and women. My participants will be asked to complete some questionnaires (Sociocultural Attitudes Towards Appearance

    asked on November 6, 2006
  19. History

    Which answer best explains how Ralph Waldo Emerson's Concord Hymn is an example of Transcendentalism? It emphasizes war, violence, and victory. It emphasizes nature, feelings, and memory. It emphasizes the importance of social reform.*** It emphasizes

    asked on April 11, 2017
  20. Goverment

    1. Read each situation. Write whether a bill of attainder, an ex post facto law, or a writ of habeas corpus woul prevent the situation from happening. A. ______________ shortly after video cameras were invented, a man evident aped a rock concrete. Years

    asked on March 2, 2015
  21. English

    I have to find the adverb in each sentence. Then I have to identify the verb it modifies. 1.)Native Americans originally developed lacrosse. Adverb- originally. Verb-developed. 2.)It was first played by the Iroquois. Adverb- first. Verb- played. 3.)It was

    asked on January 14, 2015
  22. math

    Estimate the value of this expression by rounding each number to the nearest unit. (1.63)(9.95)(2.46) Plesse help..

    asked on December 6, 2014
  23. MATH

    I have a test in about an hour and a half and am having some difficulty on the review the teacher gave us to help us prepare. Any help would be great! *Convert the polar equation to a rectangular equation. rsin(theta - Pi/4) =5 -The answer is given as y=

    asked on April 4, 2013
  24. Physics!!!!

    A 78 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.4m/s. v=7.7m/s If the trampoline behaves like a spring of spring constant 5.6×104 N/m , how far does he depress it?

    asked on May 18, 2012
  25. Early childhood literacy

    "I eated it all up!"said Jimmy. Mrs. Newman, his teacher, should say. A. "Jimmy,say that again, but instead of saying "I eated it all up!"I ate it all up!' B. "What did you eat up?"

    asked on October 23, 2011
  26. Home school community

    what is three issues related to role confusion that a teacher may feel communicate?

    asked on September 10, 2011
  27. chem

    what substance is oxidized in following reaction 4 HCl+MnO2 and Cl2+2H2O+MnCl2

    asked on September 20, 2010
  28. English

    When submitting a final draft of a handwritten paper, which of the following choices is important to remember? A. The margins should be exactly even on left and right sides B. Write neatly and use black or blue ink C. Use a plain font, like Times New Roman

    asked on July 8, 2010
  29. Calculus

    Find the derivative. y = ln(x^4 + 6x + 7) y '(x) =

    asked on June 21, 2010
  30. physics

    a car traveling at 7.0 m/s accelerates uniformly at 2.5 m/s TO REACH A SPEED OF 12.0 M/S HOW LONG DOES IT TAKE FOR THIS ACCELERATION TO OCCUR?

    asked on September 26, 2007
  31. Math

    Admission to the country fair cost $9per person the ride tickets cost $2.50 each. Write an equation representing total cost

    asked on September 26, 2017
  32. Physics

    A 2.00 ✕ 106 Hz radio signal is sent a distance of 7.30 ✕ 1010 meters from Earth to a spaceship orbiting Mars. Approximately how much time does it take the radio signal to travel from Earth to the spaceship?

    asked on April 17, 2017
  33. Calculus

    I would like to know if my answers are correct: Disclaimer: We are allowed to keep our answers in formula form 1. Use the washer method to find the volume of the solid that is generated by rotating the plane region bounded by y=x^2 and y = 2-x^2 about the

    asked on January 16, 2017
  34. math

    A factory kept increasing it's output by the same percentage every year .find the percentage if it is known that the output is doubled in the last two years.

    asked on December 4, 2016
  35. Graphing Linear Equations and Inequalities

    Fill in the t-table below for the equation. Then graph the line on the grid by selecting two of the points from your table. 3x+4y=-16 x y −4 0 4

    asked on November 14, 2016
  36. Math

    Round 1.98 to the nearest tenth

    asked on April 13, 2016
  37. Maths

    How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0

    asked on October 7, 2015
  38. Science

    Explain the process of filtering blood

    asked on March 18, 2015
  39. P.E

    Happiness, sadness, and fear are examples of blank emotions. A. Learned B. Primary C. Secondary D. Innate Is the answer A?

    asked on September 9, 2014
  40. science

    What is science is the question and btw Im in grade 8 so could u plz give an answer according to that like explain what is science first and then wht r its branches plzzz!!!

    asked on September 4, 2013
  41. AP Physics

    Momentum One of those Civil War cannons is fired. The Cannon has a mass of 873kg It fires a 35.0kg cannon ball at a velocity of 145 m/s at an elevation angle of 35.0 degrees. The length of the barrel is 2.10m. (a) What is the recoil velocity of the

    asked on January 8, 2013
  42. AP Physics B

    A penny of mass 3.1g rests on a small 28.2g block supported by a spinning disk of radius 12cm. The coefficients of friction between the block and disk are .73 (static) and .64 (kinetic) while those for the penny and black are .6 (static) and .45 (kinetic).

    asked on November 9, 2012
  43. AP Physics B

    An air puck of mass 0.102 kg is tied to a string and allowed to revolve in a circle of radius 1.06 m on a horizontal, frictionless table. The other end of the string passes through a hole in the center of the table and a mass of 0.78 kg is tied to it. The

    asked on November 9, 2012
  44. chem

    How many milliliters of 4.80 M HCl are required to react with 110 mL of 1.48 M Al(OH)3? Al(OH)3(s) + 3HCl(aq)to AlCl3(aq) + 3H2O(aq)

    asked on November 8, 2012
  45. AP Physics B

    A 2189 kg car moving east at 9.73 m/s collides with a 3285 kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 35.7◦ north of east and at a speed of 4.79 m/s. What was the speed of the 3285 kg car before

    asked on November 1, 2012
  46. TRIG.

    From a point 50 feet in front of a church, the angles of elevation to the base of the steeple and the top of the steeple are 35° and 47° 20', respectively. Find the height of the steeple. I missed class this day and have no idea how to go about this

    asked on October 15, 2012
  47. Physics 6A

    A 330- piano slides 3.8 down a 23 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. a.Determine the work done by the force of gravity. b.Determine the work done by the man on the piano.

    asked on May 11, 2012
  48. math mearsurement

    What is the mass of a glass of water including the glass?

    asked on February 4, 2010
  49. Math

    The ratio of North American Butterflies to South American butterflies at a butterfly park is 7:5. The ratio of South American butterflies to European butterflies is 5:3. There are 105 North American butterflies at the butterfly park. How many South

    asked on April 16, 2020
  50. Chemistry

    Using the following balanced equation, how many moles of NaCl can be produced from 0.314 moles of Na3PO4? 3 FeCl2 + 2 Na3PO4 → 6 NaCl + Fe3(PO4)2 _____ mole NaCl produced

    asked on March 10, 2020
  51. Math

    Juan loses 30% of his weekly wage due to stoppage. If he takes home $122.50 how much does he earn a week

    asked on October 17, 2019
  52. Algebra

    4 9 3 Y • y • y

    asked on October 10, 2019
  53. Math

    Hi! im confused in this question.A polar bear weighs approximately 453 grams at birth.the average weight of an adult male polar bear is 635 kilograms. What is the weight of an adult male polar bear in grams?

    asked on October 8, 2019
  54. Math

    Luang enlarged a photograph to 1 3/4 times its original size. The original photograph was 3 1/2wide. What was the width of the enlarged photograph? A.2 5/8 B.3 3/8 C.5 1/4 D.6 1/8

    asked on October 6, 2019
  55. maths

    when acontainer is 1/4 filled with water it weighs 2.5kg. when it is completely filled with waterr it weighs 3.7kg.What is the weight of the empty container?

    asked on August 24, 2019
  56. Math

    Find the value of x for which l is parallel to m. 3. 19x;18x;27x 4. 5x;2x;(5x + 40)

    asked on May 21, 2019
  57. Physics

    A horse with the mass of 1131 kg pull on the rope attached to a pulley to lift a 58 kg stone up a wall. If the wall is 14.1 m tall how much work will the horse due to lift the stone up the wall in 15.7 seconds?

    asked on May 6, 2019
  58. Physics

    I am taking an online course in physics and I need to write a short paper on Analog and digital information. Below are the questions that guide me through the paper. I am having a hard time finding a website that can explain this to me. There is no text

    asked on February 15, 2018
  59. Physics

    I am taking an online course in physics and I need to write a short paper on Analog and digital information. Below are the questions that guide me through the paper. I am having a hard time finding a website that can explain this to me. There is no text

    asked on February 14, 2018
  60. algebra 1

    the sum of a two digits of a two-digit number is 10. when the digits are reversed, the new number is 36 more than the original number. find the original number.

    asked on January 28, 2018
  61. algebra 1

    betty leaves her purse in a store at the mall and average 36mi/h on her way home to Glenville, 140 miles away. Honesty harry discovers her purse and starts after her one hour later. if he averages 48mi/h how long will it take him to catch betty? will he

    asked on January 28, 2018
  62. algebra 1

    in 5 years chase will be three times as old as jared. the sum of their ages is 42. how old are chase and jared?

    asked on January 28, 2018
  63. Math

    Solve the Go.a ball was dropped from a height 80m above a concrete floor. It rebounded to the height 1\2 of its previous height at each rebound. After how many bounces is the ball 2.5 high

    asked on October 30, 2017
  64. Physics

    The Question is: An objective lens of a telescope has a 1.90 m focal length. When viewed through this telescope, the moon appears 5.25 times larger than normal. How far apart are the objective lens and the eyepiece when this instrument is focused on the

    asked on September 14, 2017
  65. Physics

    Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing for a healthy young person. The frequency of one of the ultrasonic waves is 84 kHz. (The range of hearing for a healthy young person is 20 Hz to 20 kHz.) (a)

    asked on February 16, 2017
  66. buisness

    If you find a job posting for a community college that clearly states that the job will close on 08/15/2017, what does this mean? a. Someone will be hired by that date. b. The employer is only hiring until that date. c. After that date, the employer will

    asked on February 3, 2017
  67. Math

    Let A denote the portion of the curve y = sqrt(x) that is between the lines x = 1 and x = 4. 1) Set up, don't evaluate, 2 integrals, one in the variable x and one in the variable y, for the length of A. My Work: for x: integral[4,1] sqrt(1+(dy/dx)^2) dy/dx

    asked on January 25, 2017
  68. Calculus

    Let A denote the portion of the curve y = sqrt(x) that is between the lines x = 1 and x = 4. 1) Set up, don't evaluate, 2 integrals, one in the variable x and one in the variable y, for the length of A. My Work: for x: ∫[4,1] sqrt(1+(dy/dx)^2) dy/dx =

    asked on January 25, 2017
  69. Calculus

    Can you please check to see if these answers are correct? I have provided my work as well! That you! This is much appreciated!! 1. What is the volume of the solid that is generated by revolving the region bounded by the curves x = 3y^2-2 and x = y^2 and y

    asked on January 23, 2017
  70. Calculus

    Hello, I would like to make sure the answers to these questions are correct. 1. Using the shell method, what is the volume of a solid that is generated by rotating the region by y = x^2 and x = y^2 about the x axis. My Work: r = y h = sqrt(y) - y^2 2pi

    asked on January 18, 2017
  71. Finite math

    Let S={1,2,3} be a sample space How many subsets of S contain the number 3? How many subsets of S contain either the number 2 or 3?

    asked on November 3, 2016
  72. science

    Determine the magnitude and direction of the horizontal resultant force on minibus A=1800N and B=800

    asked on November 2, 2016
  73. Physics

    A box of mass m = 59.0 kg (initially at rest) is pushed a distance d = 84.0 m across a rough warehouse floor by an applied force of FA = 204 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and

    asked on October 23, 2016
  74. Math

    A wheel has a radius of 5ft. How many revolutions would it take for the wheel to roll 62.3 ft.? Round your answer to the nearest tenth.

    asked on April 13, 2016
  75. Physics

    Block B in the figure weighs 739 N. The coefficient of static friction between block and table is 0.34; angle θ is 26°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.

    asked on March 1, 2016
  76. Chemistry

    The air was in a cylinder equipped with the piston absorbs 565 duels of heat and expands from an initial volume of .10 l to a final volume of .85 L against an external pressure of 1.0 ATM what is the change an internal energy of the air within the cylinder

    asked on November 4, 2015
  77. Maths

    How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0 I thought you would use the quadratic formula somehow, but I'm not sure

    asked on October 6, 2015
  78. Maths

    I = Alog10(t) + B I equals 8 when t is 3 I equals 50 when t is 8 t can't go past 200 A and B are constants Find A and B when I reaches 100

    asked on September 16, 2015
  79. pre-calculus

    which expression is equivalent to (sinx+1)(sinx-1)? A.) COS^2X B.) -COS^2X C.) COS^2X+1 D.) COS^2X-1 E.) -COS^2X+1

    asked on July 27, 2015
  80. pre-calculus

    Which of the following is NOT a solution to cos^2x=3sin^2x? A.) 30 degrees B.) 60 degrees C.) 150 degrees D.)210 degrees E.)330 degrees

    asked on July 27, 2015
  81. Math

    3.455 round off to the nearest tenths

    asked on March 8, 2015
  82. Math

    1. Mailey mother brought her a pet hamster. She is keeping Montey, the hamster, in a box with a length of 8.3 in.,a width of 6in.,and a height of 5,25in. Mailey plans on covering Montey's box with contact paper. How many square inches of contact paper is

    asked on March 4, 2015
  83. Math

    A roll of paper towels is 10 inches high and 2.5 inches in diameter. How many full squares inches of paper towel can fit on the roll in 15 rotation? * all I need is a formula of this question. Do I use lateral surface area formula or total surface area

    asked on February 20, 2015
  84. Science

    Q1. Why is the shape of the nerves important in the nervous system? Q2. Which structure is more complex, a tissue or an organ? How do you know?

    asked on February 17, 2015
  85. Science

    Which statement is true of an organ system? A. It supports all part of the organism. B. it is not necessary for the survival of the organism. C. One organ system can take over for another organ system. D. It has no connection with other organ system in the

    asked on February 17, 2015
  86. algebra

    Deposit is $15 and coat of hour is $4.20 so write an equation to represent the total cost y renting a tube for any number of hours x.

    asked on February 12, 2015
  87. english

    In "In Just-," the poet uses the words "and bettyandisabel come dancing / from hop-scotch and jump-rope and / it's / spring" to create a mood of (Points : 5) boring routine. happy activity. peaceful days. hopeless dejection.

    asked on January 26, 2015
  88. Math

    George is making a permanent for his favorite baseball team. He wants the short edge to be 14 inches and the height in the middle of the right triangle to be 24 inches. What is the length of diagonal side AB?

    asked on January 24, 2015
  89. Math

    Q1.A tree was chopped by the Samuels family for the holidays. How tall was the tree originally if the piece they chopped down was 7feet tall, and fell 4 feet from the stump? Q2. Mr pratt's rake is leaning up against a wall. If the top of the rake hits the

    asked on January 24, 2015
  90. Math

    Cannon wants to make a garden with a border of his yard. He has lumber in several different lengths. Which three lengths could be used to make a right triangle to fit into the corner of his yard? A. 4ft.,6ft.,10ft. B.7ft.,12ft.,15ft. C.5ft.,12ft.,13.

    asked on January 24, 2015
  91. Math

    how could you change one of the squares so that a right angle would be created

    asked on January 24, 2015
  92. Social studies

    I need Sam Houston and Mirabeau Lamar -background -problems each of them faced -Native American -military spending -annexation I want them to be separate like contrast

    asked on January 21, 2015
  93. Science

    In the experiment water clock : what changes (independent variable) , how does it responds to the changes made(dependent variable), and what is being controlled (controlled variable). Pleas I really need this by today. And also my question for science fair

    asked on January 19, 2015
  94. Science/engineering

    What part does gravity play in the function of the water clock? Explain.

    asked on January 18, 2015
  95. Engineer

    What part does gravity play in the function of the water clock? .I kind of don't understand this question. All I need is a better understanding

    asked on January 14, 2015
  96. Engineering

    What part does gravity play in the function of the water clock? .I kind of don't understand this question. All I need is a better understanding

    asked on January 13, 2015
  97. Ceramics (help!!!)

    When creating clay forms what must be done with inside?? When applying glaze to a ceramics piece, it is important to wax the foot, or the bottom of the piece. What might happen if it isn't waxed??

    asked on December 15, 2014
  98. Engineer/robotic

    How to tell by an example which is a robot and which is a nobot? My example is: security lights that turns on whenever someone walks by= nobots I need to know how do you know by an example which is which

    asked on December 13, 2014
  99. Survey of Mathematics

    Suppose a car rental agency gives the following choices: Option A: $30 per day plus 40 cents per mile Option B: flat $50 per day (unlimited miles) At what mileage are both rates the same if you rent the car for 3 days?

    asked on December 4, 2014
  100. Science!

    An oven is a technological system. Which of the following describes an input into this system? A. Setting the temperature B. Burning gas releases heat. C. A thermostat monitors the temperature and increases the gas flow when the temperature falls too low.

    asked on September 9, 2014


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