Mariel

Popular questions and responses by Mariel
  1. physics

    a light string 4 meters long is wrapped around a solid cylindrical spool with a radius of 0.075 m and a mass of .5 kg.a 5kg mass is then attached to the end of the string, causing the string to unwind from the spool. a. what is the angular acceleration of

    asked on December 3, 2010
  2. Geometry

    Find the sum of the measures of the exterior angles of a convex 39-gon?

    asked on March 21, 2013
  3. math

    From a square piece of cartolina with a side of 60cm, liza cut the biggest cross. What is the area of the cross?

    asked on January 21, 2016
  4. Calculus (math)

    A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y=ax2 about the y-axis. If the dish is to have a 8-foot diameter and a maximum depth of 2 feet, find the value of a and the surface area (in square

    asked on December 14, 2014
  5. Calculus (math)

    A painting in an art gallery has height h and is hung so its lower edge is a distance d above the eye of an observer (as in the figure). How far from the wall should the observer stand to get the best view? (In other words, where should the observer stand

    asked on November 7, 2014
  6. Calculus (math)

    A boat leaves a dock at 2:00 P.M. and travels due south at a speed of 15 km/h. Another boat has been heading due east at 20 km/h and reaches the same dock at 3:00 P.M. How many minutes past 2:00 P.M. were the boats closest together?

    asked on November 7, 2014
  7. science

    Consider the following reaction: CH3X + Y --> CH3Y + X At 25ºC, the following two experiments were run, yielding the following data: Experiment 1: [Y]0 = 3.0 M [CH3X] Time (hr) 7.08 x 10-3 M 1.0 4.52 x 10-3 M 1.5 2.23 x 10-3 M 2.3 4.76 x 10-4 M 4.0 8.44 x

    asked on February 20, 2012
  8. Thermo

    Calculate the equilibrium constant for the reaction NiO(s) + H2(g) → Ni(s) + H2O(g) at 1023K from the following data: Ni(s) + ½ O2(g) → NiO(s) ΔG0 = -244,555 + 98.53 T [J] H2(g) + ½ O2(g) → H2O(g) ΔG0 = -246,438 + 54.81 T [J] Could a pure nickel

    asked on November 10, 2015
  9. Physics

    Find th resultant and speed direction of the airplane relative to the ground.... AN airplane is heading west at velocity 950km/hr and wind is blowing northward at velocity of 55.o km/hr

    asked on September 1, 2010
  10. Calculus (math)

    A conical water tank with vertex down has a radius of 12 feet at the top and is 23 feet high. If water flows into the tank at a rate of 20 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?

    asked on October 25, 2014
  11. Math degrees

    A Ferris wheel has spokes that divide the wheel into 9 equal sections. What is the measure of the angle of the angle for each sections

    asked on April 12, 2018
  12. Physics

    The Angle of depression of Boat A from the top of a cliff which is 32 m high is 24 degree 15 minutes .The angle of depression of Boat B from the same point is 18 degree 12 minutes .Find distance between the two side with diagram

    asked on July 30, 2014
  13. math

    Solve the following algebraically. Trial and error is not an appropriate method of solution. You must show all of your work and write answers in rational form. 3 x + 7 = 9 Answer: x = 2/3 Show your work here: 3 x + 7 = 9 -7 - 7 3/3 x = 2/3 X = 2/3 b)

    asked on July 27, 2008
  14. math

    is one half greater than three fourths

    asked on July 25, 2011
  15. Geometry

    ABCD is a rectangle with B(-4,2) andD (10, 6). find the coordinates of A. Please help and tell me how you got it so I can understand

    asked on March 21, 2013
  16. agebra

    Sam and Chris went to “Lots O Fun” to play laser tag and video games for Chris’s birthday. Sam played 3 games of laser tag, 5 video games, and spent $17 total. Chris played 4 games of laser tag, 7 video games, and spent $23 total. How much does one

    asked on November 5, 2010
  17. science

    true or false? the graph distance versus time for n object moving at consatant speed is a curve.

    asked on September 18, 2008
  18. Geometry

    ABCD is a rectangle with B(-4,2) andD (10, 6). find the coordinates of A. Please help and tell me how you got it so I can understand

    asked on March 21, 2013
  1. calculus

    A lamp post 3m high is 6m from a wall. A 2m man tall is walking directly from the post toward at 2.5m/s. How fast is his 1.5 from the wall

    posted on May 22, 2017
  2. HELLLPPPPPPPP!!!!!!

    48 pieces of apples

    posted on February 12, 2017
  3. Calculus

    64π

    posted on January 24, 2016
  4. Math(angle of depression) i need help please..

    hey can you explain please step by step i'm really sorry but i really need your help

    posted on July 30, 2014
  5. Geometry

    Okay thank you do much!:)

    posted on March 21, 2013
  6. Geometry

    I'm sorry I put it wrong B(-4,6) c(-4,2) d(10,2)

    posted on March 21, 2013
  7. Geometry

    Thank you so much, I understand this now! :)

    posted on March 21, 2013
  8. Geometry

    Show*

    posted on March 21, 2013
  9. Geometry

    Thank you but also how would I sow my work for this?

    posted on March 21, 2013
  10. Statistics

    I do not understand what I need to do her I need some help.

    posted on February 10, 2012
  11. precal

    find positive and negative coterminal angle for 55(pi)/18

    posted on January 12, 2012
  12. algebra

    Solve the following algebraically. Trial and error is not an appropriate method of solution. You must show all of your work and write answers in rational form. 3 x + 7 = 9 Answer: x = 2/3 Show your work here: 3 x + 7 = 9 -7 - 7 3/3 x = 2/3 X = 2/3 b)

    posted on July 27, 2008
  13. Please Check My Math Work

    Solve the following algebraically. Trial and error is not an appropriate method of solution. You must show all of your work and write answers in rational form. 3 x + 7 = 9 Answer: x = 2/3 Show your work here: 3 x + 7 = 9 -7 - 7 3/3 x = 2/3 X = 2/3 b)

    posted on July 27, 2008