Most popular questions and responses by Mitch
  1. math

    A toy rocket is launched straight up into the air with an initial velocity of 60 ft/s from a table 3 ft above the ground. If acceleration due to gravity is –16 ft/s2, approximately how many seconds after the launch will the toy rocket reach the ground?

    asked on June 7, 2016
  2. Economics

    Suppose that there are 1,000 hot-pretzel stands operating in Toronto. Each stand has the usual U-shaped average total cost curve. Both the market demand curve and the supply curve for pretzels are linear, and the market for pretzels is in long-run

    asked on December 4, 2016
  3. Math

    Dominick is in charge of ordering supplies for harry's hamburger stand. hamburger buns come in packs of 12 and frozen hamburger patties come in packages of 20. he must have the same amount of rolls as patties. What is the least number of packages of each

    asked on October 29, 2014
  4. Chemistry

    In an experiment, 0.0300 moles each of SO3(g), S02(g), and O2(g) were placed in a 10.0L flask at a certain temperature. When the reaction came to equilibrium, the cocentration of SO2(g) in the flask was 3.50x10^-5 molar. What is Kc for the reaction?

    asked on November 19, 2012
  5. Math

    (Growth of Cells) Suppose that after t hrs, there are p (t) cells present in a culture, where P(t) = 5000e*^2t a) How many cells were present initially? b) Give a differential equation satisfied by P(t) c) When will the population double? d) When will

    asked on June 29, 2009
  6. math

    Verify cos(x-3pi/2)=-sin x

    asked on May 29, 2012
  7. English

    Which of the following situations in "The Censors" represents an example of situational irony? A. Juan ends up being executed after censoring his own love letter to Mariana. B. Juan decides to report a colleague for trying to organize against the

    asked on September 19, 2017
  8. Physics

    A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 16°C when it was installed. What is its change in length when the temperature drops to a frigid -39°C?

    asked on April 6, 2008
  9. Calculus II

    find the distance between the given parallel planes 5x-5y+z=10 and 10x-10y+2z=2. I got 9sqrt51/51

    asked on September 11, 2014
  10. MATH


    asked on October 6, 2011
  11. Chemistry

    what volume of oxygen gas measured at 25C and 760 torr is required to react with 1.0L of methane measured under the same conditions of temperature and pressure?

    asked on March 24, 2012
  12. biology

    why do macrophages have high numbers of ribosomes and lysosomes

    asked on May 16, 2008
  13. math

    The price of a shirt is reduced by 30% to $14. What was the original price of the shirt?

    asked on July 19, 2012
  14. English

    The diction of "At the Tourist Centre in Boston" can best be described as A. Emotionally charged B. Colloquial and relying on slang C. Informal and simple D. Mostly figurative and abstract I'm stuck between "Emotionally charged" and "Mostly figurative and

    asked on August 21, 2017
  15. physics

    because of friction, a constant force of 20 N is needed to slide a box across a room to the right at a constant speed, and box is moved 3 m. What is the friction force and how much work is done by friction force?? How much work is done by gravity? How much

    asked on October 1, 2006
  16. Chemistry

    The mass of a sample of boron atoms is 5.60 g. How many boron atoms are in this sample? Show work, and explain.

    asked on December 18, 2013
  17. math word problm


    asked on October 6, 2011
  18. Algebra

    Find the equation of the line and write your answer in the slope-intercept form. 1. Has a y-intercept of 5 and a slope of 2. Has a slope of -5 and a y-intercept of 2/3. 3. Has a slope of -3 and contains (4,9). 4. Has a slope of 4/9 and contains (0,-2) 5.

    asked on November 28, 2012
  19. physics

    car accelerates from 0 to 60 mi/hr in a time of 5.8 secs. a. What is the acceleration of car in m/s squared? need help setting up the problem, thanks acceleration = (speed change)/(time interval) To get the answer in m/s^2, the speed change of 60 mi/hr

    asked on September 4, 2006
  20. investing

    A company is thinking of investing some surplus cash in 30 year $1000 face value Microsoft 6% annual coupon bonds. It plans to pay $925 each for 10,000 of them, now, and expects to SELL them for $1025 each at the end of 5 years. Make a determination about

    asked on February 2, 2013
  21. math questions

    WORD PROBLEM: Tims tet grades in french were: 86,96,88,91 what score must Tim make on his next test to average 92? a 89 b 93 c 97 d 99 I said 99. because when you add all numbers its 460/5 = 92 2) the water level indicator measures the rise and fall in

    asked on October 6, 2011
  22. math 4th grade

    n divided by 5 equals 105 how do you no that the tens place in n is less than 5

    asked on January 19, 2011
  23. Physics

    An inclined plane is on a table 1.4m tall. A 6kg box is hanging vertically attached to a 2kg mass on a plane with an unknown incline plane with coefficient of sliding friction of .2 . a. determine the acceleration of the system. b. if the plane is 3.5m

    asked on December 10, 2010
  24. math

    tree casts a shadow 32 feet on the ground. If the distance from the end of the shadow to the top of the tree is 40 feet, how tall is the tree?

    asked on November 8, 2010
  25. physics

    really stuck, a 90 kg skier has 140 KJ of total mechanical energy when he is at a height of 120m above the bottom of the hill. calculate the skiers kinetic energy. calculate his speed?

    asked on October 18, 2010
  26. English/Poetry

    I need to write a poem for my English class. The thing is, I don't know how to write a good poem. I've read loads of poems, but I just don't know how to write a good poem.

    asked on December 28, 2007
  27. physics

    Does the tension in the rope or chain of a swing do any work on a child who is swinging? No. Work is done when the force is applied in the direction of motion.

    asked on September 30, 2006
  28. physics

    What does a 15 kg mass weigh on Earth? need assistance in setting up problem to get answer in Newtons and in pounds. thanks Weight in Newtons = M g =(Mass in kg) x (acceleration of gravity in m/s^2) The acceleration of gravity on Earth is g = 9.8 m/s^2. Do

    asked on September 21, 2006
  29. math

    ``My hundreds digit is 4 less than my tens digit. my ten thousands digit is 6 greater than my hundreds digit. my thousand digit is 5 less than my ten thousand digit and my ones digit is 6 greater than my hundred digit. if my tens digit is 7, what number am

    asked on July 8, 2016
  30. Algebra

    In the following problem, the digits 0-9 have been replaced with letters. Can you reconstruct the original multiplication problem by identifying what digit each letter represents? TEA (times)x_TEA_ SEA TNNA (add)t_TEA_ (ans.) CHINA

    asked on November 28, 2012
  31. Chemistry

    Suppose a compound is involved in three different reactions denoted R1, R2, and R3. Tripling the concentration of this reactant in all three reactions causes the rates of reaction to increase by factors of 3, 9, and 1, respec- tively. What is the order of

    asked on May 1, 2010
  32. physics

    Fluid A is more dense than fluid B 1. densities of the objects are more than the densities of the fluids, which object will have the greatest buoyant force when placed in the fluids. 2. densities of the objects are less than the densities of the fluids,

    asked on October 27, 2006
  33. physics

    balloon filled with 1 liter of water (1000 cm^3) in equilibrium in a container of water, the balloon is totally submerged in the water. a. What is the mass of 1 liter of water? b. What is the weight of the 1 liter of water? need assitance in setting up

    asked on October 23, 2006
  34. physics

    Suppose we attempt to account for air resistance in our projectile motion in the following (incorrect) way: we alter g so that the acceleration in the y direction is -8 m/s2, and introduce a horizontal acceleration of -3 m/s2. With these changes, find the

    asked on September 2, 2012

    1. Which one of the following is not a benefit to the employer when offering an ESOP? (Points : 1) maintains a stable work force owner can sell stock to a friend results in a dilution of value of the stock ESOT can borrow money under favorable conditions

    asked on March 19, 2012
  36. linguistics

    why is there a length difference between the word "house" in 'greenhouse' and 'green house' when you say the word? I know it takes longer to say 'house' in "green house" but why does it take longer? please help me. I am so confused :(

    asked on March 12, 2012
  37. calculus

    If X = 15, Y = 20, and Z = 25, what is the sine of angle B?

    asked on October 13, 2011
  38. Math (Urgent)

    Use the Midpoint Rule to approximate the integral (–10x+7x^2) from 10 to 17 with n=3

    asked on June 29, 2011
  39. biology

    What is a possible system that can be used to test respiration in a small animal?

    asked on June 16, 2011
  40. math

    use only tens to make the number 40 in two parts (5 ways)

    asked on October 27, 2008
  41. math

    How would you solve for x in this equation: (x^2-9)(2x-1)=0

    asked on September 15, 2008
  42. biology

    how do nonliving thing grow

    asked on September 8, 2008
  43. Physics

    A person eats a container of yogurt. The Nutritional Facts label states that it contains 195 Calories (1 Calorie = 4186 J). What mass of perspiration would one have to lose to get rid of this energy? At body temperature, the latent heat of vaporizaiton of

    asked on April 6, 2008
  44. english

    i need help in writing an ironic paragraph

    asked on February 23, 2008
  45. english

    I have to do a visual presentation for pride & prejudice & jane eyre. Any suggestions...i'm not very creative.

    asked on January 11, 2008
  46. social studies

    Describe the interdependence of Great Britain and the American colonies giving specific examples?

    asked on September 12, 2007
  47. physics

    just wondering if anybody have any suggestions for a physics project (anything that deals with physics)??? thanks Research the Klien-Fogleman wing and its advantages over conventional wing shapes.

    asked on November 27, 2006
  48. physics

    1. x-ray machine operates at 200 kv with a current of 10 mA. The power mus be produced by a transformer which raises the voltage from 220 volts to 200 kilovolts. The power going into and out of the transformer is the same. How much current must flow in the

    asked on November 17, 2006
  49. Math

    x^2+√2x+1/2=0 Solve using the quadratic formula and use complex numbers.

    asked on February 15, 2016
  50. Science

    what is the importance of ph to biological systems in the human body? I have an answer but is there anything else I could include and is my answer justified? My answer: Changes in the ph could be harmful, Natural buffers prevent rapid or large changes in

    asked on February 10, 2016
  51. grammar

    What is the complete subject if the following sentenc:some people like to take classes to learn new things

    asked on October 8, 2013
  52. economics

    A producer would have an added incentive to enter a market if the: A. prices for microwave oven sharply decreased. B. price for tennis shoes sharply increased C. supply of apples increased, causing a surplus D. supply of cell phones satisfied consumer

    asked on May 20, 2013
  53. Algebra

    The perimeter of Greg's rectangular deck is 170 feet. The length of the deck is four times the width. What is the dimensions of the deck?

    asked on November 28, 2012
  54. physics

    An asteroid moves toward the sun along a straight line with a velocity given by v = -(c1+c2/x)½ , where x is the distance from the center of the sun. Use the chain rule for derivatives to show that the asteroid's acceleration is a = -c2 /2x^2.

    asked on August 23, 2012
  55. physics

    A particle moves along the y axis according to y(t)=(3.5 m/s^2)t^2 - (9.0 m/s)t + 5.0 m. (a) What is the particle's velocity as a function of time? (b) What is the particle's acceleration at t=2.0 s?

    asked on August 23, 2012
  56. algebra

    Average cost of a bicycle is modeled by the function c(x)=.1x^2-1.7x+10 where c(x) is measured in dollars. how many bicycles should be built in order to minimize the average cost per bicycle?

    asked on November 16, 2011
  57. math

    word problem: The Rory family drove 310 miles each day for 4 days. Then on Friday they drove 250 miles to Centerville. On Saturday they drove 150 miles to Westfield. What else do you need to know to determine how many miles they averaged each day for that

    asked on October 6, 2011
  58. Maths

    Perimeter = 216 and the length is (2X)+3 more than the width. How do I solve for X and what is the rectangle length. I am really stuck!

    asked on February 3, 2011
  59. physics

    ok so dr= 2i + 3j while F= 5i + 2j It wants me to find the work. now i know w=Fxdr. what i want to know is why when you take the dot product of both, you get a different answer compared to when you just multiply the magnitudes.

    asked on March 6, 2010
  60. Chem

    Calculate the volume ( mL ) of the solute acetic acid and the volume ( L ) of the solvent H2O that should be added to generate 5.01 kg of a solution that is 0.694 m acetic acid. volume ( mL ) of the CH3CO2H volume ( L ) of the H2O i just want to check my

    asked on March 3, 2010
  61. algebra

    give an example of a number that is a integer, but not a whole number

    asked on January 27, 2010
  62. Algebra

    I need 3 ordered pairs of points that would be solutions to this equation I have an idea of what suppose to fit because I think this equation has infinate solutions. What do you all think. Thank you! 4x - y = 7

    asked on February 18, 2009
  63. statistic

    Given TWO SETS of congruent angles, what is the probability of selecting two consecutive angles that are congruent?

    asked on December 3, 2008
  64. Solving Equations with variable on Both Sides

    I need help solving this. I've never been really good with fractions, so, that's probably why.: 3p/8 + 7p/16 - 3/4 = 1/4 + p/16 + 1/2

    asked on May 3, 2008
  65. Physics

    Why does the central maximum of a diffraction pattern is twice as long as any other? Thank you

    asked on October 4, 2007
  66. physics

    if a child pulls an old wagon up a steep incline on a sidewalk, what does a child's work do? i say, it would increase, due to the fact that it is a steep hill and it takes more work to pull the wagon up??? The child's work is done aganst gravity, and

    asked on October 1, 2006
  67. Math


    asked on September 20, 2017
  68. Physics

    A crazy young woman on a motorcycle is cruising at 45 m/s down the expressway. Realizing the error in her ways, she slows down and stops her bike over a distance of 95m. Assuming it is constant, what was her acceleration?

    asked on September 17, 2017
  69. Statistics

    In group of three friends what is the probability that at least two have the same birthday?

    asked on January 26, 2017
  70. algebra

    Additive inverse integer of -13

    asked on August 21, 2014
  71. economics

    Explain three ways the workplace in the US has changed since the 50s.

    asked on May 20, 2013
  72. economics

    Which is most likely to have an inelastic demand? A. an expensive sports car B. experimental cosmetic surgery C. organic fruits and vegetables D. an effective cancer-fighting drug

    asked on May 20, 2013
  73. chemistry

    what is the molarity of the solution obtained by mixing 25.0 ml of a 3.00 M methyl alcohol solution with 225.0 ml of a 0.100 M methyl alcohol solution?

    asked on December 13, 2012
  74. physics

    A projectile is shot at 35° to the horizontal and lands 12 s later at the same elevation. (a) What is the projectile's initial speed? (b) What is its maximum altitude?

    asked on September 2, 2012
  75. Alg

    solve: x + 8 = 2(x-2) - x

    asked on August 31, 2012
  76. Calculus

    The figure is an invertible function . Use the figure to find the following: ƒ−1(-3)= ƒ−1(-2)= ƒ−1(-1)=

    asked on August 28, 2012
  77. physics

    The vector V is given by V = (5.0x-12.0y )m. What is W such that V + W = -5|V|x?

    asked on August 26, 2012
  78. physics

    The acceleration of a certain particle is a function of time: a(t) = pt^2-qt^3, where p and q are constants. Initially, the velocity and position of the particle are zero. (a) What is the velocity as a function of time? (b) What is the position as a

    asked on August 23, 2012
  79. physics

    A ball is thrown upward in such a way that its speed is 32.3 m/s when it is at half its maximum height. Find (a) its maximum height, (b) its velocity 2.0 s after it's thrown, (c) its height 2.0 s after it's thrown, and (d) its acceleration at its maximum

    asked on August 23, 2012
  80. physics

    An object has an acceleration of +1.4 m/s2. At t=4.0 s, its velocity is -4.5 m/s. a) Find the object's velocities at t=1.0 s and t=7.0 s.

    asked on August 23, 2012
  81. algebra

    What is the value for the coefficient determinant (D) in the following system? 4x – 3y = 16 3x + 7y = –25 A. –37 B. –19 C. 37 D. 52

    asked on July 22, 2012
  82. Math

    Find the formula for piecewise function f(x) = ____ if x < or equal to -1 ____ if -1 < x < or equal to 2 ____ if x > 2 Thanks! I got -1, x, and 2. Am I right?

    asked on April 4, 2012
  83. Statistics

    Suppose that 92% of all SFSU students own a cell phone. Find the probability that 7 out of 10 random selected SFSU students own a cell phone. explain how answer was arrived

    asked on February 24, 2011
  84. Statistics

    Suppose that 92% of all SFSU students own a cell phone. Find the probability that 7 out of 10 random selected SFSU students own a cell phone

    asked on February 24, 2011
  85. math

    rounded to the nearest ten i am 780. i am even.the sum of my digits is 17.

    asked on September 20, 2010
  86. physics

    What is the required resistance of an immersion heater that will melt 6.39 kg of ice at 0°C in 36 min while operating at 110 V? im not too sure how to do this because delta_T=0. With the equations im using, i get 0 but its not the answer and im not quite

    asked on May 19, 2010
  87. AP history

    Decade charts - teacher looking for Prospects - what would that mean

    asked on May 5, 2010
  88. earth

    Could you tell a story of the rock cycle using a rock called Roger the Rock??

    asked on February 23, 2010
  89. math

    These questions relate to curvature problems. a.Explain why (dÖ/ds) = (dÖ/dt) (dt/ds). b.Explain why tanÖ = dy/dx, which equals (dy/dt) / (dx/dt).

    asked on December 18, 2009
  90. Algebra

    Find the slope of the line that goes through the given points. I think I figured out the answer but I would appreciate any feedback thanks! (3,-2),(-1,-6)

    asked on February 24, 2009
  91. chemistry

    We did an experiment on Quantitative Analysis of Soda ash by Double-Indicator Titration. What is the cause of carbonate error and its effect on the calculated values obtained in standardizatin and sample analysis?

    asked on January 18, 2009
  92. math

    use only 10s to make the number 40 in two parts (5 ways) 1+3 2+2 3+1 what are the other two?

    asked on October 27, 2008
  93. math

    How would you solve for x in this equation: (y^2+y-6)(3y+1)=0

    asked on September 15, 2008
  94. French

    What is the difference between meilleur and mieux. Which one do I use for It is better to.... C'est meilleur or mieux de ....

    asked on May 17, 2008
  95. Science

    does wiping your perspiration increase the rate at which you perspire?

    asked on June 30, 2008
  96. physics

    1. Outlets of two rooms are placed in parallel on a single circuit (120 volts). How many 100 watt light bulbs could you run on a circuit that had a 15 amp circuit breaker (max of 15 amps total) need help setting up problem?? Each 100 W lamp draws I = P/V =

    asked on November 17, 2006
  97. physics

    barrel is 70kg, and height of dock is 2 meters. How much work do you do when lifting the barrel? was sure if you convert the 70kg to newtons, then multiply it by the 2 meters?? Work= mass*g*distance. Yes, convert it.

    asked on September 30, 2006
  1. science

    I always spent my half an hour to read this web site's content every day along with a mug of coffee. Billiga Fotbollströjor

    posted on April 28, 2019
  2. History

    Do you have the rest of the answers?

    posted on May 4, 2018
  3. Child Care

    I dont think either A or B are correct. If anything I'm guessing it is C, because often children rebel against time-outs.

    posted on September 19, 2017