Abdullah

Most popular questions and responses by Abdullah
  1. Physics

    A car travels at 80 km/h on a level road in the positive direction of an x axis. Each tire has a diameter of 66 cm. Relative to a woman riding in the car and in unit-vector notation, what are the velocity at the (a) center, (b) top, and (c) bottom of the

    asked on November 23, 2015
  2. Math

    Cos theta=9/41 and the terminal arm of the angle is in quad.4. Find remaining trigonometri functions?

    asked on June 1, 2017
  3. Chemistry (heat flow, simple)

    Well I know to calculate heat flow you use, q=ms delta t. for this experiment we mixed naoh with hcl into water. the total mass (volume) of the mixture was 100g the temperature change for naoh was 11.7 degrees C and for hcl it was 11.8 degrees C now im

    asked on March 12, 2010
  4. Math

    Find the area of the region between the curves y=lnx and y=ln2x from x=1 and x=5.

    asked on March 7, 2017
  5. Business English

    selecting concrete words 22. we have found that young men are best for this work

    asked on January 26, 2015
  6. chemistry

    how to balance this equation? (NH4)2Cr2O7 ---- Cr2O3 + N2 + H2O plz tell step by step.i m a beginner

    asked on May 6, 2010
  7. physics

    you walk north for 2.5 miles. Then you walk east a distance of 3 miles. How many miles from the starting point are you?

    asked on August 29, 2013
  8. Geology

    (Fetter p235, 2) A soil sample is collected and taken to the lab. The volume of the sample is 75 cm3. At the natural water content, the sample weighs 168.00 g. It is then saturated with water and reweighed. The saturated weight is 171.25 g. The sample is

    asked on October 5, 2017
  9. chemistry

    CH4+2O2====>2H2O+CO2.calculate the mass of CO2 and H2O formed by combustion of 64g of CH4.

    asked on May 28, 2014
  10. Physics

    A 0.026 kg bullet is fired vertically at 205 m/s into a 0.15 kg baseball that is initially at rest. How high does the combined bullet and baseball rise after the collision, assuming the bullet embeds itself in the ball?

    asked on October 29, 2010
  11. Physics

    A daredevil on a motorcycle leaves the end of a ramp with a speed of 33.0 m/s as in the figure below. If his speed is 31.3 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance.

    asked on October 13, 2010
  12. Mechanic Science

    A motorcycle starts from rest with constant acceleration of 1.5m/s^2 until it achieves velocity of 15m/s. The motorcycle decelerate until it stop 12s. Determine: 1) the deceleration of motorcycle 2) distance traveled by the motorcycle

    asked on October 8, 2015
  13. moles of water produced?

    We mixed HCl and NaOH into water and got this table, all for trial 1 Here is all of the info for trial 1: trial 1: volume of 2 M NaOH used: 50.0 mL initial temperature of NaOH: 24.4 degrees C volume of 2 M HCl used: 50.0 mL initial temperature of HCl: 24.3

    asked on March 12, 2010
  14. Science

    Explain how you could use a spring, a ruler, some standard masses,and some graph paper to find the weight of an unknown object.

    asked on October 25, 2018
  15. chemistry

    Consider the reaction 2 Al2O3(s) → 4 Al(s) + 3 O2(g). ∆H = +3339.6 kJ/mol What is the change in heat when 0.455 L of a 3.60 M Al solution reacts with excess O2 ? 1. -21,962 kJ 2. -2735 kJ 3. -1368 kJ 4. -26,521 kJ 5. -685 kJ 6. -5477 kJ 7.

    asked on October 15, 2017
  16. English

    Write one paragraph of eight to twelve sentences persuading a friend to enroll in Penn Foster by describing at least three advantages of distance-education with Penn Foster compared to a traditional school education. Use the comparison-contrast order for

    asked on August 12, 2011
  17. Business English

    23) she makes good grades

    asked on January 26, 2015
  18. calculus

    Find the extreme values of the function for the given intervals. 2x^3 – 21x^2 + 72x a) [0,5] b) [0,4] I have both the minimum values for both intervals which is 0. But I am unable to find the maximum. please help!!!

    asked on March 13, 2011
  19. statistics

    hi, I have a 7 questions that should be answered in a Microsoft word shown work not final answer

    asked on December 15, 2015
  20. english

    You demonstrate that you are able to revise, edit, and proofread by effectively rewriting a paragraph using the standard written conventions of American English. To accomplish this assignment, you apply the rules and skills taught in the first four study

    asked on August 17, 2011
  21. APPLIED CHEMISTRY

    MOLE FRACTION AND MOLALITY IS INDEPENDENT OF TEMPERATURE BUT NORMALITY AND MOLALITY CHANGES WITH TEMPERATURE, WHY?

    asked on December 27, 2012
  22. English

    Write one paragraph of eight to twelve sentences informing your fellow students of your reasons for wanting to earn your diploma in the program in which you're enrolled, particularly in terms of your career goals. For example, why did you decide to take

    asked on August 27, 2011
  23. math

    a cone has a circular base of radius 16cm and a volume of 420cm2.find the height of the cone.

    asked on October 5, 2016
  24. Physics

    A car is travelling with a 5m/s in 25 minutes at a distance of 30cm calculate initial velocity and declaration of the car.

    asked on November 29, 2010
  25. Math

    Find the length of the curve y=(x3/3)+x2+x+1/4x+4 Plases solve

    asked on March 15, 2017
  26. Math

    Find the length of the curve y=(x3/3)+x2+x+14x+4 Plases help to find the curve

    asked on March 15, 2017
  27. Maths of class 9

    P and q are points on side CD of a parallelogram ABCD. Show that area of trianglePAB =area of triangleRAB

    asked on November 25, 2016
  28. Maths

    2x(3x-4)-(x-1)(x+3)

    asked on August 29, 2016
  29. Math

    One side of a rectangle is 2cm longer than the other side .its area is 195cmsquare .find its perimeter

    asked on July 23, 2016
  30. Maths

    solve the equation sin(2 theata +pi/3)=1/2 for 0

    asked on May 2, 2016
  31. math

    prove that sin^6a+sin^4acos ^2a-sin^ 2acos^4a=1-2cos^2a

    asked on August 12, 2015
  32. Physics

    It takes you 10min to walk with an average velocity of 1.2m/s to the north from the bus stop to the restaurant entrance. What is your displacement?

    asked on September 16, 2013
  33. Ap english 11

    Essay about"what is happiness and how do/should we pursue it?"

    asked on September 2, 2013
  34. english

    Pretend that you writing to the editor of your local newspaper. Your purpose is to convince its readers that rather than solely relying on e-mail, people should mail a letter to their loved ones every now and then. Following is your first draft. Every now

    asked on August 17, 2011
  35. english

    Write one paragraph of eight to twelve sentences informing your fellow students of your reasons for wanting to earn your diploma in the program in which you're enrolled, particularly in terms of your career goals. For example, why did you decide to take

    asked on August 17, 2011
  36. Physics

    Thanks you alot for correction. A car is travelling with a 5m/s in 25 minutes at a distance of 30 cm calculate initial velocity and decelaration of the car

    asked on November 29, 2010
  37. Physics

    Thanks you alot for correction. A car is travelling with a 5m/s in 25 minutes at a distance of 30 cm calculate initial velocity and decelaration of the car.

    asked on November 29, 2010
  38. Physics

    Thanks you alot for correction. A car is travelling with a 5m/s in 25 minutes at a distance of 30 cm calculate initial velocity and decelaration of the car.

    asked on November 29, 2010
  39. Physics

    Thanks you alot for correction. A car is travelling with a 5m/s in 25 minutes at a distance of 30 cm calculate initial velocity and decelaration of the car.

    asked on November 29, 2010
  40. Physics

    A car is travelling with a 5m/s in 25 minutes at a distance of 30cm calculate initial velocity and declaration of the car.

    asked on November 29, 2010
  41. Chemistry

    I've got the specific heat of a metal for three trials. t1= .186 j/gdegrees C t2= .178 j/gdegrees C t3=.128j/gdegrees C the mean of the specific heat is .164 j/gdegrees C we're supposed to find which metal it is from a "CRC" handbook. I've tried and can't

    asked on March 10, 2010
  42. social studies

    what is the definition for Spin-doctor?

    asked on January 23, 2008
  1. Physics

    how can i get free vbucks

    posted on February 10, 2019
  2. math

    Thanks you helped me on my homework

    posted on September 13, 2018
  3. science

    I don't know

    posted on July 10, 2018
  4. chemistry

    1.20

    posted on October 15, 2017
  5. Physcis

    588N

    posted on July 5, 2017
  6. math

    Yes

    posted on February 15, 2017
  7. MATH! PLEASE REPLY ASAP!

    You people are just desyroying the math. be ashame ofvyourself you cannot give correct answer of even 1 question shame on yourself

    posted on December 12, 2016
  8. MATH! PLEASE REPLY ASAP!

    answer will be 8

    posted on December 12, 2016
  9. Math

    19.1 units AB= 7.3 BC=6.8 CA=5

    posted on September 6, 2016
  10. math

    ∫▒〖(3x^2-7)/(3x+2) dx〗

    posted on August 2, 2016
  11. statistics

    a. (0.62*0.55) + (0.62*(0.55-0.48))= 0.3844 = 38.44%

    posted on June 19, 2016
  12. Physics

    vm/vb=1.257

    posted on September 27, 2015
  13. Whatzit puzzle

    what belongs 2 u but other people use it more than u? answer: your name (Abdullah)

    posted on September 15, 2015
  14. Chemistry

    What is a daniel cell?

    posted on May 10, 2015
  15. Geometry

    1050

    posted on August 20, 2014
  16. chemistry

    144g of 2H2O

    posted on May 28, 2014
  17. english

    d. written

    posted on September 12, 2013
  18. english

    b. wrote

    posted on September 12, 2013
  19. Algebra 2

    -or+2((sqrt13-3y)+4) divided by 3

    posted on September 2, 2013
  20. college physics

    The answer is: 158.3(approximately)

    posted on December 11, 2012
  21. physics

    6.94Km/hr

    posted on December 3, 2012
  22. DRAMA

    lol you guys, none of the penn foster exams are exactly alike. all of them are different. when ms. ruby put the answer with the questions she put them there for the question on THIS exam(the one posted here). so obviously the questions and answers wont be

    posted on July 1, 2012
  23. English

    yes I did my self but teacher cross it and says write again

    posted on August 27, 2011
  24. english

    please do me a favour write a paragraph according to the requirement given above

    posted on August 27, 2011
  25. English

    I want complete one paragraph according to the Question above

    posted on August 17, 2011
  26. calculus

    I tried 3 for both (a and b) as a maximum and didn't work....

    posted on March 14, 2011
  27. Physics

    never mind I solved the problem

    posted on October 29, 2010
  28. Physics

    susan drops a ball, and 2 second later the ball has a speed of 20m/s. what is the ball's acceleration?

    posted on April 29, 2010
  29. science fair project

    please i need help and i have alot of work ot do

    posted on March 6, 2009
  30. science fair project

    i need a nice peom about volcanoes

    posted on March 6, 2009
  31. math fair projects

    actually i am finding a good site for math projects

    posted on October 28, 2008