Most popular questions and responses by KT
  1. physics

    A runner is moving at a constant speed of 8.00 m/s around a circular track. If the distance from the runner to the center of the track is 28.2 m, what is the centripetal acceleration of the runner?

    asked on March 23, 2014
  2. Mathematics

    Donations to an annual fundraiser are 15% greater this year than last year. Last year donations were 10% greater than the year before. The amount raised this year is $10,120. How much was raised two years ago?

    asked on October 6, 2016
  3. algebra 1

    What is 47.2% as a fraction or mixed number in simplest form?

    asked on August 18, 2010
  4. Psychology

    Check my answers, please? If you're an eligible woman in search of Mr. Right, chances are that you're most likely to be impressed by a man's A. thrift and money-management skills. B. age—if he's several years your junior. C. record of steady employment.

    asked on January 30, 2015
  5. Physics

    A 0.25 kg ball moving at 19.0 m/s is hit by a bat. The ball leaves the bat at a speed of 38 m/s in the opposite direction. If the bat is in contact with the ball for 0.01 s, find the magnitude of the average force exerted on the ball by the bat.

    asked on July 10, 2018
  6. Physics

    You build a toy model of a water slide. A red 250 g toy car slides down a 40 degree frictionless ramp. At the bottom, just at it exists onto a horizontal part of the slide, it collides with a purple 500 g car at rest. How high should you make the water

    asked on July 10, 2018
  7. Statistics

    The Amount of filling a half-liter (500ml)soft drink bottle is normally distributed. The process has a standard deviation of 5ml. The mean is adjustable. A. Where should the mean be set to ensure a 95% probability that a half-liter bottle will not be under

    asked on April 11, 2014
  8. Chemistry

    25.0 mL of a NaCl solution (concentration unknown) was found to react with 20 drops of the chloride test solution from the PU Chloride Test Kit. Calculate the mass of NaCl (in grams) in this solution. Calculate the mass of NaCl required to prepare 0.250 L

    asked on October 3, 2010
  9. geometry

    the bases of a trapezoid have measures of 16 and 8. find the measure of the median.

    asked on December 8, 2009
  10. trig

    Point P is located at the intersection of a circle with a radius of r and the terminal side of an angle q. Find the coordinates of p to the nearest hundreth. q = -60° , r = 7

    asked on October 12, 2009
  11. math

    Jo has 37 coins (all nickels, dimes and quarters) worth $5.50. She has 4 more quarters than nickels. How many of each type of coins does she have? d=#dimes n=#nickels q=#quarters. ============== d+n+q=37 n+4=q 0.1d + 0.05n + 0.25q = 5.50

    asked on January 1, 2007
  12. Chemistry

    What is the concentration of a solution which contains 1 mole of CaCl2 dissolved in 2000mL of solutions?

    asked on June 1, 2010
  13. Calculus

    A trough is 15 ft long and 4 ft across the top. Its ends are isosceles triangles with height 3 ft. Water runs into the trough at the rate of 2.5 ft3/min. How fast is the water level rising when it is 0.89 ft deep? Give your answer correct to 3 decimal

    asked on December 10, 2016
  14. physics

    The fastest major league pitcher throws a ball at 40.0. If he throws the ball horizontally, how far does it drop vertically on the 17.7 trip to home plate?

    asked on September 20, 2010
  15. Physics

    A proton of mass m undergoes a head on collision with a stationary atom of mass 13m. If the initial speed of the proton is 485 m/s, find the speed of the proton after the collision.

    asked on July 10, 2018
  16. Algerbra

    if possible, solve the nonlinear system of equations. x^2+y^2=58 y-x=4

    asked on November 23, 2013
  17. physics

    A fully loaded 737 aircraft takes off at 250km/h.If its acceleration is a steady 3.3 , how long a runway is required? How much time does it take the plane to reach takeoff?

    asked on September 20, 2010
  18. Physics/Science

    During a baseball game, a batter hits a pop- up to a fielder 72 m away. The acceleration of gravity is 9.8 m/s^2. If the ball remains in the air for 5 s, how high does it rise?

    asked on November 12, 2015
  19. Math

    Sherry earned a 7% raise last year. If her salary is now $27,285, what was her salary last year?

    asked on April 12, 2012
  20. Physics

    A car (mass 800 kg) is traveling with a speed of 37 mi/h. A bug (mass 8.7 mg) is traveling in the opposite direction. What speed would the bug need in order to slow down the truck by one mile per hour in a big bug splash (i.e., final speed 36 mi/h)?

    asked on November 2, 2012
  21. geometry

    the bases of a trapezoid have measures of 16 and 8. fine the measure of the median.

    asked on December 8, 2009
  22. Geometry

    One leg of an isosceles right triangle is 14cm long. Find the length of the hypotenuse. C^2=a^2+b^2 C^2=14^2+14^2 392=14^2+14^2? What do I write? Because 14 square root 2 doesn't make sense.

    asked on May 3, 2016
  23. english

    what do you call a person who can not function with out a leader

    asked on October 15, 2011
  24. chem 101

    how can a calorimeter constant be determined experimentally?

    asked on November 16, 2010
  25. Help with American History

    How did Revolutionary ideology challenge the way minorities were treated in America? What changes in this treatment resulted from this challenge, and why did some minorities find their circumstances improved while others did not?

    asked on August 15, 2009
  26. algebra

    1. 18 m/min = cm/s 2. 5.7 gal/h = c/min 3. 264 yd/s=? mi/h Anyone know the answers to these?

    asked on January 24, 2008
  27. Statistics

    example of a finished apa independent project with between subjects and analysis of variance

    asked on June 24, 2016
  28. Statistics

    Choose and observational study for and independent project using 3 between subjects and Anova

    asked on June 24, 2016
  29. Algebra

    Can someone explain how you get 8-6i out of (3-i)^2

    asked on May 3, 2016
  30. Algebra

    Write the following as an inequality. Y is less than or equal to 3 and greater than -7

    asked on April 7, 2016
  31. statistics

    Determine the condition on coefficients "a subscript i" so that the linear combination "Summation symbol from i=1 to n for 'a subcript i'times 'X subscript i'" is an unbiased estimate of E[X].

    asked on April 29, 2011
  32. Physics

    Who was Isaac Newton? Write a brief paragraph about his life and work (include a bibliography)

    asked on August 15, 2009
  33. Biology

    Is there a mathematical way of writing Newton's three laws of motion

    asked on August 15, 2009
  34. english

    sentence using cardiologist

    asked on February 1, 2009


    asked on April 6, 2008
  36. A.P. U.S. History

    What role did George Washington play in the 1750’s?

    asked on October 1, 2007
  1. algebra

    shona is right 100%

    posted on September 19, 2017
  2. ss

    yeah why are you even in this websites you said that your dad is best friend of the principal and you are in this website are you even from connection academy cuz i don't believe you and don't say that he cheated cuz he just needed help on something :D (oh

    posted on February 9, 2016

    25 m/s to the right

    posted on February 2, 2016
  4. Science


    posted on December 10, 2015
  5. Physics/Science


    posted on November 12, 2015
  6. biology


    posted on October 26, 2015
  7. Algerbra

    thank you x)

    posted on November 23, 2013
  8. English

    i think it would be a tree

    posted on March 11, 2012
  9. Chemistry


    posted on October 3, 2010
  10. physics


    posted on September 20, 2010
  11. Cultural Diversity

    The class is an ethics class. It talks about whites, blacks, asians and all the races

    posted on September 3, 2009
  12. english

    what is aquaphobia. describe what someone is like with aquaphobia how may this person gotten this fear is there a cure and what is it

    posted on February 10, 2009
  13. chemistry

    Yes, the reaction shifts to the right. Because the reactant concentration increased, equilibrium will be shifted to product

    posted on November 14, 2008
  14. Social Studies

    Thank You!

    posted on October 1, 2007