# 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

2. ## Math

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

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

4. ## Math

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

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

6. ## chemistry

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

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?

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

9. ## chemistry

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

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?

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.

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

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

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.

15. ## chemistry

Consider the reaction 2 Al2O3(s) â†’ 4 Al(s) + 3 O2(g). âˆ†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.

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

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!!!

19. ## statistics

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

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

21. ## APPLIED CHEMISTRY

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

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

23. ## math

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

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.

25. ## Math

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

26. ## Math

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

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

28. ## Maths

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

29. ## Math

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

30. ## Maths

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

31. ## math

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

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?

33. ## Ap english 11

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

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

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

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

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.

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.

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.

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.

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

42. ## social studies

what is the definition for Spin-doctor?

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

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

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

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