Ahmad

Popular questions and responses by Ahmad
  1. Business Math

    Myerson borrowed $8,500 at 9% ordinary interest for 200 days. After 120 days, he made a partial payment of $4,000. What is the final amount due on the loan?

    asked on November 19, 2015
  2. chemistry

    a compound contains only carbon hydrogen and oxygen analysis of a sample showed that it contained by mass 53.4% carbon and 11.1% hydrogen . what is the simplest formula for this compound .. step by step plese

    asked on February 19, 2014
  3. Math

    A girl spent 1/4 of her money on bus fare and 2/3 of the remaining on drink.what fraction of her original money was 1- spent 2- left

    asked on April 4, 2020
  4. Science

    The density of 95.2 % (weight percent) of H2SO4 is 1.53 g/ml.calculate the molarity of this solution.

    asked on December 9, 2019
  5. mathematics

    x is partly constant and partly varies as y^2 when y =11,x=52.8and when y = 5 and x = 8 find (a) equation connecting x and y (b) y when x = 105.6

    asked on February 20, 2018
  6. physics

    A ball is projected upward at time t = 0.0 s, from a point on a roof 40 m above the ground. The ball rises, then falls and strikes the ground. The initial velocity of the ball is 15.4m/s. Consider all quantities as positive in the upward direction. The

    asked on May 13, 2015
  7. MSD

    Pat and Kris are roommates. They spend most of their time studying (of course), but they leave some time for their favorite activities: making pizza and brewing root beer. Pat takes 4 hours to brew a gallon of root beer and 2 hours to make a pizza. Kris

    asked on November 3, 2012
  8. science

    How does a doorbell work?

    asked on May 20, 2009
  9. Aerodynamics

    Consider an infinitely thin flat plate of chord c at an angle of attack α in a supersonic flow. The pressure distribution can be approximated as follows: i) Upper surface: Cp constant at -0.8 from the leading edge to 60% chord, then increasing linearly to

    asked on March 12, 2020
  10. Physics

    a force of 2N stretches an elastic material by 30mm. What additional force will stretch the material by 35mmassuming the elastic limit is not exceeded

    asked on February 11, 2020
  11. Physics

    if a string has a stiffness of 950nm,what work will be done in extending the spring by 60cm

    asked on June 10, 2019
  12. Java code

    Write the Java code of the method Mirror that takes one 2-dimentional array (squared matrix) A1, and returns 2D array A2 which is the mirror image of A1.

    asked on March 31, 2017
  13. Science

    A 8.8-kg object is moving at 5.3 m/s. A 7.4-N force is applied in the direction of motion and then removed after the object has traveled 4.7 m. The work done by this force is:

    asked on November 23, 2016
  14. Math

    The volume of a block of a gold is 0.5 m sqare. if it is hammered into a sheet to cover an area of 1 hectare,find the thicness of the sheet.

    asked on August 31, 2015
  15. science

    A hawk flies in a horizontal arc of radius 12.0 m at a constant speed of 5.4 m/s. It continues to fly along the same horizontal arc but increases its speed at the rate of 2.8 m/s2. Find the acceleration magnitude under these conditions.

    asked on August 6, 2015
  16. Physics

    Two springs, each with spring constant 20 N/m, are connected in parallel, and the combination is hung vertically from one end. A 10-N weight is then suspended from the other end of the combined spring. How far does the combined spring stretch as it comes

    asked on October 27, 2014
  17. physics

    A soccer ball rolling across a field with an acceleration of -0.5m/s/s rolls 12.5 m and then comes to a stop after 8 seconds. What was the ball's initial speed?

    asked on September 24, 2014
  18. java

    write a program thatprint on secreen the reselt of the following series: d=1+2/x^2+3/x^3+.....r/x^r . thanks

    asked on August 10, 2014
  19. c++

    Write a C++ program that reads the population of town A and its growth rate as well as the population of town B and its growth rate. It outputs after how many years the population of town A will be greater than that of town B and the values of their

    asked on June 4, 2014
  20. c++

    Write a C++ program that reads the Capacity (in gallons)of an automobile fuel tank, and Miles per gallon this automobile can be driven. It outputs the number of miles this automobile is driven without refueling

    asked on May 17, 2014
  21. chemistry

    Lab on Determining hard water Not sure if I answered this currently, not completely sure how to explain either. If a student has a non-zero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated

    asked on January 18, 2013
  22. Mechanics M1

    A rabbit runs in a horizontal straight line ABC across a field (a)the rabbit runs from rest at A with a constant acceleration of 0.8 m/s^2 and reaches B after 3 seconds, find its speed at B

    asked on March 7, 2012
  23. Physic

    I am having trouble with some of this question. 'A student standing at the top of a cliff shoots an arrow from a height of 30.0 m at 25.0 m/s and an initial angle of 32.0 degrees above the horizontal. b. How high above the landscape under the cliff with

    asked on January 11, 2010
  24. Physics

    A body weigh of 0.26N in air. When total emmers in water weight 0.16h and 0.18n in another liquid. Calculate the relative density of of liquid

    asked on March 3, 2020
  25. Physics

    A relative density bottle weight 20g when empty, 80g when field with water and 100g when with a liquid. Fine the relative density of liquid.

    asked on March 3, 2020
  26. technology

    You are the IT manager of an Elementary School. The school is adding computers that have been donated by a local company. An extended star topology has been suggested, using some hubs that are available. The school agrees with your idea of adding a switch

    asked on December 12, 2019
  27. Geography

    Write down the importance of rivers in pakistan?

    asked on September 29, 2019
  28. chemistry

    If 20dm³ of hydrogen where collected over water at 17°C and 797knm² pressure A. Calculate the pressure of a drying hydrogen gas at this temperature

    asked on July 26, 2019
  29. math

    A cross-section of a parabolic reflector and bulb is located at the focus is 16cm.find the equation of the parabola and the diameter of the opening (R,S),11cm from the vertex

    asked on August 17, 2018
  30. Data Structure and Algorithms in Java

    A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. On the other hand, a composite number is a natural number greater than 1 that is not a prime number. For example, 5 is prime, as only 1 and 5 divide

    asked on March 31, 2017
  31. Programming

    Write a java method that will take two sorted stacks A and B (min on top), and return one stack D that is sorted (min on top). You are allowed to use only the stack operations such as pop, push, isEmpty and peek. Example: suppose A={(top)1,4,7,9} and

    asked on March 31, 2017
  32. math

    One third of seema,s pocket money is Rs 2.How much does she get?

    asked on February 18, 2017
  33. math

    Taking the speed of the radio signal as 3×108 m/s, calculate the time taken for a signal to reach a GPS receiver from a GPS satellite at a position 21 000 km distant from the receiver. Assume that the speed of the signal is unchanged over the whole path

    asked on December 6, 2016
  34. فيزياء

    A 8.4-kg block is lifted vertically 9.0 m at constant speed by a boy. The work done by the boy is about:

    asked on November 23, 2016
  35. Chemistry

    Acid in vinegar has pka value of 1.85 x 10^-5 at 25oC find the pkb value of its conjugate base?

    asked on April 7, 2016
  36. physics

    A disk with a rotational inertia of 1.4 kg×m2 and a radius of 0.8 m rotates on a frictionless fixed axis perpendicular to the disk faces and through its center. A force of 5.2 N is applied tangentially to the rim. The angular acceleration of the disk is:

    asked on December 31, 2015
  37. chemistry

    draw a diagram showing the arrangement of the valency electrons in a molecule of the covalent compound arsine,ash3 use o to represent an electron from aresenic

    asked on November 14, 2015
  38. Math

    2 water pipe inlets pumping water into a tank. Pipe "A" fills up the tank in 30 minutes. Pipe "B" fills up the tank in 90 minutes. Assuming both pipes are on. How long it will take to fill up the tank.

    asked on September 18, 2015
  39. Math

    The parallel sider of a trapezium are 25 cm and 11 cm, while its nonparallel sides are 15 cm and 13 cm. find the area of the trapezium.

    asked on August 31, 2015
  40. chemistry

    value and formula Ksp Of : -PbI2 -CdS -Ca(OH)2 -Ag2CrO4 -Cu2S

    asked on March 26, 2015
  41. science

    home / homework help / questions and answers / science / physics / the temperature of an ideal gas at an initial pressure ... Question The temperature of an ideal gas at an initial pressure P1 and volume V1 is increased at constant volume until the

    asked on January 8, 2015
  42. Mustapha

    The oxidation number of kromium in k2Cr2O7

    asked on November 8, 2014
  43. physics

    A 22-N force, parallel to the incline, is required to push a certain crate at a velocity of 6.1 up a frictionless incline that is 55° above the horizontal. The mass of the crate is:

    asked on November 5, 2014
  44. UOS

    Write a C++ program that reads the Capacity (in gallons)of an automobile fuel tank, and Miles per gallon this automobile can be driven. It outputs the number of miles this automobile is driven without refueling .

    asked on May 17, 2014
  45. Science (Physics)

    Gravity on the surface of the moon is only 1 6 as strong as gravity on the Earth. What is the weight of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s 2 . Answer in units of N What is the weight on the moon? Answer in units of N What is

    asked on November 18, 2013
  46. Finance

    asked on July 19, 2013
  47. chemistry

    calculate the pH of a 0.50 m solution of HCN. Ka for HCN is 4.9*10^-10 (The chemical equation for this.)

    asked on April 9, 2013
  48. physics

    A ball whirls around in a vertical circle at the end of a string. The other end of the string is fixed at the center of the circle. Assume that the total energy of the ball-Earth system remains constant. (a) What is the tension in the string at the bottom?

    asked on March 18, 2013
  49. chemistry

    Lab on Determining hard water Not sure if I answered this currently, not completely sure how to explain either. If a student has a non-zero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated

    asked on January 17, 2013
  50. Chemistry

    Calculate the amount of heat required to take 3.00kg of ice at -10 degrees Celsius to 115 degrees celsius.

    asked on April 25, 2012
  51. physics

    When driven by a 120 Hz vibrator, a string has transverse waves of 31 cm wavelength traveling along it. (a) What is the speed of the waves on the string& (b) Is the tension in the string is 1.2 N, what is the mass of 50 cm of the string?

    asked on April 17, 2012
  52. physics

    Two blocks with masses m1 = 7 kg and m2 = 4 kg are connected with a rope and move on two surfaces of a right-angled wedge as shown in Fig. 6.6 Given that θ1 = 37 °, θ= 53°, μ= 0.2, and μ= 0.1, find the acceleration of the blocks

    asked on April 1, 2012
  53. math

    The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

    asked on October 28, 2011
  54. math

    The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

    asked on October 28, 2011
  55. geometry

    if a measure of an angle is -2x^2+19x and the measure of it's supplement is 4x^2-6 what's the measure of angle and supplement

    asked on October 17, 2011
  56. statistics

    1. Use the following information about a group of college students: Fifty percent are taking Algebra. Sixty percent are taking Biology. Thirty percent are taking both Biology and Algebra. A student from the group is selected at random, calculate the

    asked on September 18, 2011
  57. chm

    Silver chloride, often used in silver plating, contains 75.27% .Calculate the mass of silver chloride required to plate 195 of pure silver.

    asked on February 10, 2011
  58. Art

    i need to choose a paint where design element and visual element in 1 paint could you help me to choose that paint and telling me what elements in it thank you

    asked on November 7, 2009
  1. Physics

    Voltage source is required in this question.

    posted on March 25, 2020
  2. Physics

    A relative density bottle weight 20g when empty, 80g when field with water and 100g when with a liquid. Fine the relative density of liquid.

    posted on March 4, 2020
  3. Science

    Thanks Zara 😎

    posted on January 12, 2020
  4. math

    x/5 = 2x-9 x = 10x - 45 45 = 10x - x 45 = 9x 45/9 = x 5 = x

    posted on November 28, 2019
  5. physics

    90degrees

    posted on November 9, 2019
  6. Chemistry

    If some volatile impurities in the crucible are not burned ofT in step I but are renmoved in step l, is the reported percent mass of water in the hydrated salt too high or too low? Explain

    posted on October 21, 2019
  7. Language Arts Help

    past

    posted on October 2, 2019
  8. Math

    You have saved $130 for a new pair of skis. They have a regular price of $189. They have been reduced by 30%. .? Show your work what is the sale price of the skis

    posted on June 20, 2019
  9. chem

    Hi.deer how can I got good ststiking for any surface .when I pliting spray chrome .and what is a good activouter. Thanks

    posted on March 26, 2019
  10. physics

    I need the simplest step to. Solve step by step

    posted on November 10, 2018
  11. Math

    Need calaculation step by step

    posted on November 10, 2018
  12. Civic

    A good leader must fulfill all campaign promises by so doing people will trust him and his follower

    posted on October 23, 2018
  13. Math

    A movie cost 3,254,107 to produce.what digit is in the hundred thousands place?

    posted on September 29, 2018
  14. Physics 4B

    so helpfull

    posted on April 11, 2018
  15. Science~Ms. Sue

    Chemical property

    posted on November 28, 2017
  16. math

    3 sailboats to 6 fan boats

    posted on November 11, 2017
  17. math

    A bear was seen near a campground. Searchers were dispatched to the region to find the bear. A)Assume the bear can walk in any direction at a rate of 2 miles per hour. Suppose the bear was last seen 4 hours ago. How large an area must the searchers cover?

    posted on March 15, 2017
  18. CHEMISTRY

    18.75L

    posted on December 15, 2016
  19. chemistry

    1.2E-4 mols/kg

    posted on November 13, 2016
  20. Math

    Jdj

    posted on May 29, 2016
  21. physics

    tell me

    posted on May 19, 2016
  22. Physics

    60 kg * 5 m/s + 40 kg * 0 m/s = (60 kg + 40 kg) * v_final 300 kg*m/s = 100 kg * v_final 3 m/s = v_final

    posted on May 15, 2016
  23. biochem

    answer is 1,638,400 18 generations original is not included

    posted on March 22, 2016
  24. Physics

    2546

    posted on February 12, 2016
  25. physics

    I want the answer. Where is it ?

    posted on April 12, 2015
  26. physics

    0.5J

    posted on March 8, 2015
  27. maths

    home / homework help / questions and answers / science / physics / the temperature of an ideal gas at an initial pressure ... Question The temperature of an ideal gas at an initial pressure P1 and volume V1 is increased at constant volume until the

    posted on January 8, 2015
  28. physics

    test

    posted on November 5, 2014
  29. physics

    1414.2

    posted on June 14, 2014
  30. Accounting

    32

    posted on May 15, 2014
  31. business&technical english

    ans is bias-free language.

    posted on May 5, 2014
  32. business&technical english

    I or we is the answer.

    posted on May 5, 2014
  33. English

    what is the meaning of the heaven were let loose

    posted on December 4, 2013
  34. finance

    r= 3.5+1.08(10-3.5)

    posted on July 19, 2013
  35. calculus (point me in the right direction please?)

    f'= 3x2 + 8x f'(5)= 3(25) + 8 (5)= =75+40=115 so u replace x by 5 in fx and u substract

    posted on July 19, 2013
  36. Chemistry

    So in this case, that a small amount of your unknown failed to dissolve in the t-butanol, it would effect the molar mass, just depending on the mass of both substances?

    posted on February 2, 2013
  37. Chemistry

    Thanks you Dr.Bob222. So the overall idea is that dissociation decreases molar mass and association does the opposite when a solute dissolves in a solvent. (How do you identify if either reaction occurs? Just wondering.)

    posted on February 2, 2013
  38. chemistry

    Thanks

    posted on January 18, 2013
  39. Math - natural log

    Express the given quantity as a single logarithm. ln(1+x^8)+ln(x)- ln(sin(x))

    posted on September 13, 2012
  40. Algebra 1

    m= y2-21/x2-x1 m= -6-(-4)/4-6 m=-2/-2 therefore m= 1 the answer is b) good luck :)

    posted on April 25, 2012
  41. MATH

    x/9 < or = -3 x times 1/9 < or = -3 x< or = -3/1/9 x< or = -27 sorry i don't have the symbols on my keyboad, but i hope this helped

    posted on April 25, 2012
  42. 5th grade math

    Mr. Hightower recorded the amount of each project that had been completed at the end of the week. The line plot describes the information he recorded. What fraction of the projects were complete?

    posted on April 21, 2012