Popular questions and responses by Ale
  1. trig

    A 2000 pound car is parked on a street that makes an angle of 12* with the horizontal (think it's a street on a hill). a) find the magnitude of the force required to keep the car from rolling down the hill. b) Find the force perpendicular to the street.

    asked on May 25, 2011
  2. Physics

    A force in the +x-direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 8.70kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box. If the box is initially at rest at x=0,

    asked on October 21, 2014
  3. math

    What is the average monthly income for these weekly incomes: $299.34, $203.49, $305.39, and $225.30? This is all the question gives me. Please help.

    asked on April 14, 2014
  4. trig

    An aifplane is flying on a compass heading (bearing) of 170* at 460 mph. A wind is blowing with the bearing 200* at 80mph. a) Find the component form of the velocity of the airplane. b) Find the actual ground speed and direction of the airplane.

    asked on May 25, 2011
  5. Statistics

    In a sample of 200 people, 154 said they watched educational television. Find the 90% confidence interval of the true proportion of people who watch educational television. If the television company wanted to publicize the proportion of viewers, do you

    asked on April 22, 2015
  6. physics

    Two crickets, Chirpy and Milada, jump from the top of a vertical cliff. Chirpy just drops and reaches the ground in 3.10 , while Milada jumps horizontally with an initial speed of 93.0 .

    asked on November 6, 2011
  7. Literature - Macbeth

    What roles do doublespeak and duality play in Macbeth? Provide several examples of doublespeak and duality in Shakespeare’s play. How do doublespeak and duality affect Macbeth’s fate? Could somebody explain what "doublespeak" and "duality" mean? I'm

    asked on April 3, 2012
  8. algebra

    Mary bought a red convertible for $14,000. She paid $1,000 down and borrowed the rest on a one year note at 15% interest. How much will she owe at the end of one year

    asked on April 3, 2012
  9. Math

    Seth uses a school camera to take pictures for the yearbook and for the school paper. Last month he took 270 pictures for the yearbook and 180 pictures for the school paper with this camera. Which proportion can be used to determine p, the percentage of

    asked on April 24, 2016
  10. Physics

    the side of a tent makes an angle of 65 to the ground. if a boy who is 1.1m tall stands inside the tent with his head touching the tent's peak, how long is the fabric that makes up the side of the tent

    asked on April 18, 2013
  11. physics

    What forces are acting on a puck that is on an air hockey table?

    asked on March 3, 2011
  12. Exceptional children

    I need to do a task analysis on a self-care task that i usually do everyday.I need to find out all the diferent tiny skills that make up that one task that I don't think much about it.I could do it in 2 different ways, and each way will give me a better

    asked on January 13, 2009
  13. Algebra 1

    Two bullet trains leave the station at the same time traveling in opposite direction. The northbound train goes 125 mph and the southbound train goes 120 mph. After how long will they be 735 miles apart?

    asked on December 5, 2013
  14. geography

    the ¨push pull¨ theory is used by scientists to explain

    asked on October 24, 2019
  15. nutrition

    I need to develop a plan for a health unit on "What makes us grow?" based on a class size of 15 children.Any ideas?

    asked on April 7, 2008
  16. Math

    Help to solve problem A cube has an edge length of d. Point C is at the center of the top face of the cube. express the length of the path from vertez to vertex B to the center point C in terms of d. Use the idea that the square root of (N X N). Estimate

    asked on May 12, 2011
  17. ALGEBRA2

    What is the value of k in the equation 6X^2 plus KX-10 equals (3X plus 2)(2X-5)

    asked on May 30, 2011
  18. calculus

    Find the rate of change of the distance between the origin and a moving point on the graph y = x^2 + 8 if dx/dt = 8 centimeters per second.

    asked on October 6, 2010
  19. health

    I need to develop a plan for a helth unit on "What makes us grow?"based on a class of 15 children.Can you help?

    asked on April 8, 2008
  20. chemistry

    A solid sample is 81.0 g sodium per 1,000,000. g substance, and contains 1.92 × 10 ^21 sodium atoms, calculate the mass (g) of the sample.

    asked on October 27, 2013
  21. physics

    If 53 W of power are exerted and the amount of work done is 7 N-m, how much time did it take?

    asked on December 12, 2010
  22. Chemistry

    calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2

    asked on March 24, 2013

    Awoman of 75kg skis down a 50m high hill , the frictional force is not negligible her speed at the bottom of the hill is only 25m\sec, What is the work done by the frictional forces

    asked on July 8, 2012
  24. Health

    I need to do a task analysis about the difficulties that many exceptional children may encounter when attempting everyday activities.

    asked on October 2, 2008
  25. Biology

    How does the structure of Earth’s interior affect seismic waves?

    asked on May 31, 2013
  26. Chemistry

    calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2

    asked on March 24, 2013
  27. math

    Matt owns an ice cream shop and wants to know the volume of the sugar cones that he has in his shop. Find the approximate volume of the sugar cone if the radius is 4 cm and the height is 12 cm.

    asked on March 30, 2012
  28. geometry

    si quiero poner 5 litros de agua en una piramide cuadrangular cuanto debe de medir ?

    asked on January 23, 2011
  29. math

    help me find de equivalent fraction for 10/18

    asked on September 20, 2010
  30. Math

    What must be added to 40 to make 10 by powers of 2 ?

    asked on February 7, 2017
  31. math

    2x+5y=10 , -7x-4y=16

    asked on October 16, 2012
  1. math


    posted on November 20, 2019
  2. Algebra


    posted on October 30, 2019
  3. math

    You can measer with a measuring cup and put the same amount in each contaniner

    posted on April 9, 2019
  4. English

    crazed thoughts

    posted on October 3, 2018
  5. chemistry


    posted on February 15, 2018
  6. geometry

    Half of a liter is equal to 16.91 ounces. How many ounces are there in 3 liters?

    posted on January 30, 2018
  7. biomechanics

    The 60 kg student

    posted on November 17, 2017
  8. vet tech

    I had put rostral but it was wrong

    posted on July 30, 2016
  9. algebra


    posted on January 26, 2016
  10. algebra


    posted on January 20, 2015


    posted on August 24, 2014
  12. math

    Thank you!

    posted on April 14, 2014

    Awoman of 75kg skis down a 50m high hill , the frictional force is not negligible her speed at the bottom of the hill is only 25m\sec, What is the work done by the frictional forces

    posted on July 8, 2012

    ITS NATURALISM!!!! I just did my quiz. NATURALISM!!

    posted on April 19, 2012
  15. Physics

    where did you get the 0.4??

    posted on October 12, 2011
  16. 12th grade economics


    posted on November 15, 2010
  17. Literature

    silimarities both man wants compani and they feel

    posted on October 30, 2010
  18. Exceptional children

    I think I'll have to change the task to maybe combing hair incuding parting .

    posted on January 13, 2009
  19. Exceptional children

    I need to do this task very slowly and think about the very first step in the sequence of the many others that will follow. Then, I need to do this task with my non-dominant hand. After completing versions 1 and 2 I need to write a 2 to 3 page essay, in

    posted on January 13, 2009
  20. Exceptional children

    Tying shoes

    posted on January 13, 2009