Most popular questions and responses by janis
  1. Physics please help?????

    Two small spaceships, each with mass m = 2000 kg, are in the circular Earth orbit of the figure, at an altitude h of 450 km. Igor, the commander of one of the ships, arrives at any fixed point in the orbit 90.0 s ahead of Picard, the commander of the other

    asked on May 13, 2014

    Roland's Boat Tours sells deluxe and economy seats for each tour it conducts. In order to complete a tour, at least 14 economy seats must be sold and at least 5 deluxe seats must be sold. The maximum number of passengers allowed on each boat in 45.

    asked on September 25, 2010
  3. another precalc word problem

    The Cruiser Bicycle Company makes two styles of bicycles: the Traveler, which sells for $200, and the Tourister, which sells for $600. Each bicycle has the same frame and tires, but the assembly and painting time required for the Traveler is only 1 hour,

    asked on September 25, 2010
  4. chem - dry ice activity

    when you add dry ice to water, it seems to boil. why is that? You are then transfering heat from the liquid water to the solid dry ice, which sublimes gaseous CO2 into the water.

    asked on April 22, 2007
  5. ap us gov and politics

    Political institutions can present both obstacles and opportunities to racial minority groups in their efforts to gain political influence. (a) Identify one feature of one of the following and explain how that feature has presented obstacles to racial

    asked on April 25, 2007
  6. chem - dry ice activity

    does the dry ice disappear more quickly in air or in water? can you explain why? supplement your explanation with a drawing of molecular behavior based on kinetic molecular theory What do you think and why? We shall be happy to critique your thoughts. The

    asked on April 22, 2007
  7. math

    if a triangle has legs of 9in. and 12in. What is the length of the hypotenuse

    asked on March 17, 2013
  8. ap us gov and politics

    In the last half of the twentieth century, voter turnout in federal elections has declined. During the same period, voter turnout has been higher in presidential elections than in midterm elections. (a) Identify two factors that have contributed to the

    asked on April 25, 2007
  9. chem - dry ice activity

    why does the dry ice form clouds of white vapor, especially when you blow on it? what is the vapor composed of? The vapor is water vapor, condensed, as a fog.

    asked on April 22, 2007
  10. Ap bio

    When an amount of heat is transferred at a steady temperature, what happens to the entropy of the system gaining the heat? a.It decreases. b.It increases. c.It is lost to its surroundings. >>> d.It is unchanged.

    asked on November 14, 2013
  11. physics

    A car that decreases its speed from 100 km/h to 20 km/h undergoes ______ acceleration.

    asked on November 1, 2010
  12. Systen of Equalities

    Which term best describes the solution of the situation represented by the system of inequalities? (Assume that x >= 0 and y >= 0.) x + 2y

    asked on September 25, 2010
  13. math

    If a certain number is added to the numerator and denominator of 1113 , the result is 1011 . Find the number

    asked on November 8, 2014
  14. Math

    How to solve quadratic equation by graphing x^2-5 + 4= -2

    asked on April 22, 2014
  15. Math

    Can you help me find the next 2 terms in the sequences? 1, .025, .1 repeating, .0625,.04 2root2, 4, 4root3, 8root3, 8root15, 24root10

    asked on September 6, 2011
  16. chem - dry ice activity

    when the dry ice is in the water it occasionally makes a popping sound. how can you explain that? I expect you are hearing the stress fractures of the dry ice crystals. The same thing happens when you take VERY cold ice cubes from the refrigerator, place

    asked on April 22, 2007
  1. math

    I have no idea Iv'e been stuck on this for 5 months now. Please Help.

    posted on January 11, 2018
  2. mental health counseling

    Authentic and performance assessments strive for greater realism and complexity of tasks under the premise that real-life problems can often be solved _____d_________. a.in multiple ways b.with a single, most effective approach c.with the help of others

    posted on February 7, 2017
  3. math

    How much does taryn charge to mow a lawn.

    posted on October 26, 2016
  4. math


    posted on October 13, 2016
  5. Algebra


    posted on September 21, 2016
  6. Math


    posted on September 21, 2016
  7. Math

    haha do u guys go to McAuliffe I have the same question

    posted on September 21, 2016

    It doesn't say :/

    posted on September 25, 2010