kj

Most popular questions and responses by kj
  1. LA

    Which best describes the climax of the story? 1 Chris and Taylor have been neighbors for years. During the summer, they enjoy biking on the trails in town. Chris always has to remind Taylor to wear his helmet or else Taylor forgets. Every time that

    asked on October 2, 2017
  2. Chemistry

    What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.010 M CH3CO2Na? Assume the volumes of the solution are additive and that Ka = 1.8 x 10-5 for CH3CO2H. 4. How is this solved?

    asked on November 4, 2014
  3. physics

    Two ropes are attached to a skater as sketched in the figure below and exert forces on her as shown. Find the magnitude and direction of the total force exerted by the ropes on the skater if θ1 = 32.0° and θ2 = 53.0°. what is the magnitude and

    asked on February 21, 2009
  4. ALGEBRA 1

    I really don't understand please help with answers and explanations. Follow the instructions for the following inequalities. 1. 4-2 Add 5 to both sides, then add 3, then add (-4) 3. -4

    asked on January 29, 2019
  5. math

    The scale for a map says that 1 cm is equal to 25 miles. Jennifer measures the distance between two cities as 4.5 cm. How far apart are the cities?

    asked on October 12, 2015
  6. physics

    Two crates are connected by a massless rope that passes over a pulley as shown in the figure below. If the crates have mass 32 kg and 80 kg, find their acceleration. If the system begins at rest, with the more massive crate a distance 11 m above the floor,

    asked on February 21, 2009
  7. physics

    The three forces shown in the figure below act on a particle (with F1 = 48.0 N, F2 = 58.0 N, θ1 = 63.0°, and θ2 = 27.0°). If the particle is in translational equilibrium, find F3, the magnitude of force 3 and the angle θ3. F3 = 1 N θ3 = 2°

    asked on February 21, 2009
  8. math

    a student answered 86 problems on a test correctly and recieved a grade 98%.How many problems were on the test, if all the problems were worth the same number of points? (Round to the Nearest whole number.)

    asked on October 1, 2019
  9. Maths

    Four persons are chosen at random from a group of 10 persons consisting of 4 men and 6 women. Three of the women are sisters. Calculate the probabilities that the four persons chosen will a) Consist of 4 women. b) Consist of 2 women and 2 men c) Include

    asked on March 9, 2016
  10. physics

    A rock is dropped from a very tall tower. If it takes 4.1 s for the rock to reach the ground, what is the height of the tower?

    asked on February 13, 2009
  11. Chemistry

    What volume of H2 gas (in liters), measured at 23 °C and 678 torr, can be obtained by reacting 7.59 g of zinc metal with 124 mL of 0.302 M HCl? Zn + 2HCl --> ZnCl2 + H2

    asked on November 30, 2014
  12. Algebra

    What is the sum of 38 and twice a number is 124. Find the number 43 The sum of 38 and twice a number is 124. Find the number.

    asked on December 9, 2006
  13. Math

    the perimeter of an isosceles triangle is 73 cm. the base measures 3 cm more than one half the measure of a leg. what is the measure of each side of the triangle

    asked on January 17, 2018
  14. Economics

    Suppose you earned $50,000 last year, and inflation is at 5%. You receive a salary increase of $2,000. Explain your increase salary in nominal and real terms. Did you receive an increase?

    asked on November 26, 2012
  15. physics

    A flag of mass 2.2 kg is supported by a single rope as shown in the figure below. A strong horizontal wind exerts a force of 10 N on the flag. Find the tension in the rope and the angle θ the rope makes with the horizontal. Tension = N θ = °

    asked on February 21, 2009
  16. Physics

    A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.05 s. At the end of this time, the boat continues for an additional 6.15 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.50 s. (a) What is the

    asked on September 7, 2011
  17. physicss please help

    Calculate the terminal velocity for a baseball. A baseball's diameter is approximately d = 0.073 m, and its mass is m = 0.146 kg. Express your answer in meters per second and miles per hour. (Assume a drag coefficient of 1 and air density of 1.3 kg/m3.) __

    asked on February 14, 2009
  18. physics

    The diameters of Earth and the Sun are approximately 1.3 107 m and 1.4 109 m respectively, and the average Sun-Earth distance is 1.5 1011 m. Consider a scale model of the solar system, where Earth is represented by a peppercorn 2.3 mm in diameter.

    asked on January 28, 2009
  19. Spanish 1

    _______esta la silla? whic word best fits? hay,Que,Donde, or Como?

    asked on December 14, 2011
  20. math

    A display case of toy rings are marked 5 for $1. If Zach wants to buy 50 toy rings, how much will Zach spend (not including tax)?

    asked on February 7, 2018
  21. math 3

    Peter is playing a game where a ten-sided die is rolled. Four sides of the die have the number 10, three sides of the die have the number 5, two sides of the die have the number 25, and one side of the die has the number 27. What is the expected value of a

    asked on June 11, 2012
  22. physics

    One afternoon, a couple walks five-eighths of the way around a circular lake, the radius of which is 1.45 km. They start at the west side of the lake and head due south to begin with. (a) What is the distance they travel?

    asked on September 7, 2011
  23. physics!!

    The figure below shows the acceleration as a function of time for an object. (a) If the object starts from rest at t = 0, what is the velocity of the object as a function of time? for 0s < t < 10s v(t) = m/s for 10s < t < 26s v(t) = m/s (b) If the object

    asked on February 3, 2009
  24. physics (plz help)

    In SI units, acceleration is measured in units of meters per second squared (m/s2). Which of the following combinations of units can also be used to measure acceleration? km/s2 cm/s miles per hour m3/(mm2 · s2) cm/s2 miles/(minutes)2

    asked on February 2, 2009
  25. physics

    A senior citizen walks 275 m in 25 min going around a shopping mall. If she wants to increase her average speed by 25 % in walking a second lap, what would her travel time in minutes have to be?

    asked on June 1, 2014
  26. math 3

    Peter is playing a game where a ten-sided die is rolled. Four sides of the die have the number 10, three sides of the die have the number 5, two sides of the die have the number 25, and one side of the die has the number 27. What is the expected value of a

    asked on June 11, 2012
  27. Physics

    What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 5.8 m/s when going down a slope for 2.8 s? How far does the skier travel in this time?

    asked on September 7, 2011
  28. Chemistry

    when a platinum wire dipped into an unknown solution was held over a Bunsen burner flame, an intense purple colour resulted. when 6 drops of 1M AgNO3(aq) in 6MHNO3(aq) was added to this solution, a white-coloured precipitate formed. What is the chemical

    asked on September 29, 2010
  29. Chemistry

    Calculate the final temperature of 244 of water initially at 35 upon absorption of 20 of heat

    asked on February 5, 2013
  30. science

    Most proteins (do or don't) pass through the plasma membrane? Explain? Substances that dissolve in (lipids or water) can more readily pass across the plasma membrane. Explain Ions can cross the plasma membrane more easily if they have the (same or

    asked on September 18, 2011
  31. Pre-Algebra

    Can someone show me how to solve this problem step by step?Here is the problem, 26cm/s= m/min,how to solve it by convert rate suing dimensional analysis.

    asked on January 1, 2011
  32. Pre-Algebra

    Can anyone show me step by step how to solve this problem? 26cm/s = m/min convert this problem using dimensional analysis.kj

    asked on January 1, 2011
  33. physics!!

    The figure below shows the acceleration as a function of time for an object. (a) If the object starts from rest at t = 0, what is the velocity of the object as a function of time? for 0s < t < 10s v(t) = m/s for 10s < t < 26s v(t) = m/s (b) If the object

    asked on February 3, 2009
  34. physics

    A vector has components Ax = 44 m and Ay = 30 m. Find the length of the vector vector A and the angle it makes with the x axis. in meters and in degrees

    asked on January 28, 2009
  35. physics

    In SI units, force is measured in newtons, with 1 N = 1 kg · m/s2. Which of the following combinations of units can also be used to measure force? 1 kg · m4/(s2 · cm3) g · cm2/s kg · miles/(minutes)2 g · cm/s2 g · m/s

    asked on February 7, 2009
  36. physhic

    For every reaction there is an exact opposite reaction. True! The question one could ask and explore is what came first? or who or what the reaction is. Could we agree good is supieror to evil just to make my point your preference, makes no difference. If

    asked on February 8, 2016
  37. 6 grade Math

    241.5 grams of gold has a volume of 12.5 cubic cm. what is the volume of 193.2 grams of gold How do you set this problem up?

    asked on November 30, 2015
  38. Math

    What is... 4,078 rounded to the nearest thousand? 2,093 rounded to the nearest thousand?

    asked on September 1, 2014
  39. chemistry

    How many liters of 0.50M NaOH must be added to 125 mL of 0.75M HCL to neutralize it

    asked on May 19, 2013
  40. math

    (w+9)^3+56=0 write were w i a real number write answer in simplified radical form write b^2/3 as a radical expression

    asked on March 13, 2013
  41. Pre-Algebra

    Can anyone show me step by step how to solve this problem? 26cm/s = m/min convert this problem using dimensional analysis.What is the answer and how did you get it?Thanks,kj

    asked on January 1, 2011
  42. physicsss

    A cable attached to a block of mass 11 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 5.3 N, what is the coefficient of kinetic friction between the block and the floor?

    asked on February 14, 2009
  43. Science

    How many Blades of grass would be eaten by a rabbit one fox? How long is the grass? What time period?

    asked on May 22, 2007
  44. Math

    What is 5,210 rounded to the nearest hundred? 90 rounded to the nearest hundred?

    asked on September 1, 2014
  45. CHEMISTRy

    predict the product of the following: a.) Ca + H + OH => b.) Pb(NO3)2 + Cu =>

    asked on March 29, 2013
  46. german

    I have to write a slogan in german that is a command using the four different types of command forms (du, ihr, wir, Sie), and I need help figuring out how to write them. The slogan I am using is "Get your own box." from cheez-its. How would I write them in

    asked on January 21, 2011
  47. physics!!

    You are a secret agent and find that you have been pushed out of an airplane without a parachute. Fortunately, you are wearing a large overcoat (as secret agents often do). Thinking quickly, you are able to spread out and hold the overcoat so that you

    asked on February 14, 2009
  48. physics

    A jogger maintains a speed of 2.5 m/s for 188 m until he encounters a stoplight, and he abruptly stops and waits 27 s for the light to change. He then resumes his exercise and maintains a speed of 3.6 m/s for the remaining 51 m to his home. (a) What was

    asked on February 2, 2009
  49. physics

    A brass ball weighs 270gram in air and when it was immersed in water,it displaced 30 ml of water .how much will the ball weigh in water?

    asked on March 13, 2014
  50. math

    dee went shopping she had 75 dollars to spend. At one store, she bought a dress and a tube of lipstick. The lipstick was half the price of the dress. she then spent half of what she had left on a pair of shoes. This left her with 13 dollars. How much was

    asked on July 2, 2012
  51. Pre-Algebra

    Victoria you helped me with the last problem can you help me again with this one please? 26cm/s=m/min. Convert this using the dimensional analysis.Thank-you.kj

    asked on January 1, 2011
  52. Pre-Algebra

    can someone show me how step by step to convert this problem 45 mi/h=ft/s using dimensional analysis?Thanks.kj

    asked on January 1, 2011
  53. adanced algebra

    how long will it take to make $9944. dollars at 1.25 interest when i already have $7500. I have to make line graph of each year.

    asked on August 17, 2013
  54. social studies

    What does it mean when they ask my identity? Do I include sports future, likes and dislikes, education,etc.

    asked on September 30, 2007
  1. Health

    Boo

    posted on November 5, 2019
  2. Social Studies

    Yay he’s right

    posted on October 30, 2019
  3. Social Studies

    sup peeps

    posted on October 30, 2019
  4. Social Studies

    Wait who is it then

    posted on September 30, 2019
  5. Social Studies

    I think

    posted on September 30, 2019
  6. Social Studies

    And its MRS sue

    posted on September 30, 2019
  7. History

    CAA is correct woah motion

    posted on September 29, 2019
  8. math

    Miss sue you deserve better

    posted on September 28, 2019
  9. math

    Omg inappropriate

    posted on September 28, 2019
  10. Science helpppp

    Just hit the woah thanks

    posted on September 27, 2019
  11. Science

    Just hit the woah CA CA is correct

    posted on September 27, 2019
  12. History

    Fye is right I got a 100!!!!!

    posted on September 20, 2019
  13. science

    17 20 what did yall put

    posted on September 13, 2019
  14. Math

    .08x = 80000 80000/.08 = x x= $1,000,000

    posted on August 20, 2019
  15. history

    what is it

    posted on July 25, 2019
  16. English

    k

    posted on July 8, 2019
  17. ALGEBRA 1

    What about 2 and 3 how will I go about answering those?

    posted on January 30, 2019
  18. Trigonometry

    h

    posted on July 3, 2018
  19. English

    a

    posted on May 3, 2018
  20. Math

    You save money in a shoebox under your bed. At first, you had $16.25 in the box. Each week you put your $3 in the shoebox. You spend $4.25 on ice cream each week. In how many weeks will your money run out?

    posted on February 16, 2018
  21. Pre-Algebra

    I want to know the answer

    posted on February 3, 2018
  22. Programming

    37.5

    posted on October 4, 2017
  23. Physics

    1.0 x 10^-7

    posted on June 12, 2017
  24. Math

    thank you

    posted on May 1, 2017
  25. Language Arts

    thank you so much

    posted on April 20, 2017
  26. Health

    thx boo

    posted on April 14, 2017
  27. english check answer

    Select the rebuttal statement that BEST refutes the viewpoint in section one. A) It is necessary to oversee the athletes involved in mixed martial arts. B) It is unnecessary to oversee the athletes involved in mixed martial arts. C) It is necessary for

    posted on March 20, 2017
  28. math

    which expression has the same value as -3+(-5)

    posted on November 17, 2016
  29. PHYSICS

    9 kg

    posted on November 3, 2016
  30. physics... last one

    kjkkk

    posted on October 10, 2016
  31. chemistry

    55.3

    posted on March 13, 2016
  32. science

    jl

    posted on March 11, 2016
  33. Finance

    36%

    posted on July 26, 2015
  34. GEOMETRY MIDPOINT FORMULA steve how did this hapn

    What formula did you use?

    posted on November 14, 2014
  35. ethics

    Proportionality

    posted on November 5, 2014
  36. math

    12+13 which equals...25!!

    posted on September 2, 2014
  37. Math

    Ok

    posted on September 1, 2014
  38. psychology

    unconditioned stimuli is men attracted to women

    posted on July 7, 2014
  39. HISTORY

    yes

    posted on November 15, 2013
  40. Chemistry

    "I am working on a problem like this one. I don't understand how you got to 51.4 from 30500 + (-20,907) = 51.4 kJ. Can you explain?" The 30500 should be negative: -30500+(-20907) This gives you -51407 J/mol. Convert to kJ: -51.407 kJ/mol or -51.4 kJ/mol.

    posted on July 8, 2013
  41. science

    A volcano

    posted on May 5, 2013
  42. science

    Hello i don't know i was trying to look for that to

    posted on May 5, 2013
  43. college physics

    24.633m/s

    posted on March 29, 2013
  44. health

    b is wrong

    posted on November 29, 2012
  45. University Chemistry (first year)

    jkk

    posted on October 17, 2012
  46. math

    Thank you it was right on the money... so to speak.

    posted on July 2, 2012