Ahmad
Popular questions and responses by Ahmad
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 
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 
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 
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 
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 
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 
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 
science
How does a doorbell work?
asked on May 20, 2009 
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 
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 
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 
Java code
Write the Java code of the method Mirror that takes one 2dimentional array (squared matrix) A1, and returns 2D array A2 which is the mirror image of A1.
asked on March 31, 2017 
Science
A 8.8kg object is moving at 5.3 m/s. A 7.4N 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 
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 
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 
Physics
Two springs, each with spring constant 20 N/m, are connected in parallel, and the combination is hung vertically from one end. A 10N 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 
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 
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 
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 
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 
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 nonzero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated
asked on January 18, 2013 
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 
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 
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 
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 
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 
Geography
Write down the importance of rivers in pakistan?
asked on September 29, 2019 
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 
math
A crosssection 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 
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 
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 
math
One third of seema,s pocket money is Rs 2.How much does she get?
asked on February 18, 2017 
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 
فيزياء
A 8.4kg 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 
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 
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 
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 
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 
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 
chemistry
value and formula Ksp Of : PbI2 CdS Ca(OH)2 Ag2CrO4 Cu2S
asked on March 26, 2015 
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 
Mustapha
The oxidation number of kromium in k2Cr2O7
asked on November 8, 2014 
physics
A 22N 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 
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 
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 
Finance

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 
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 ballEarth system remains constant. (a) What is the tension in the string at the bottom?
asked on March 18, 2013 
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 nonzero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated
asked on January 17, 2013 
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 
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 
physics
Two blocks with masses m1 = 7 kg and m2 = 4 kg are connected with a rope and move on two surfaces of a rightangled 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 
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 
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 
geometry
if a measure of an angle is 2x^2+19x and the measure of it's supplement is 4x^26 what's the measure of angle and supplement
asked on October 17, 2011 
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 
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 
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

Physics
Voltage source is required in this question.
posted on March 25, 2020 
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 
Science
Thanks Zara 😎
posted on January 12, 2020 
math
x/5 = 2x9 x = 10x  45 45 = 10x  x 45 = 9x 45/9 = x 5 = x
posted on November 28, 2019 
physics
90degrees
posted on November 9, 2019 
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 
Language Arts Help
past
posted on October 2, 2019 
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 
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 
physics
I need the simplest step to. Solve step by step
posted on November 10, 2018 
Math
Need calaculation step by step
posted on November 10, 2018 
Civic
A good leader must fulfill all campaign promises by so doing people will trust him and his follower
posted on October 23, 2018 
Math
A movie cost 3,254,107 to produce.what digit is in the hundred thousands place?
posted on September 29, 2018 
Physics 4B
so helpfull
posted on April 11, 2018 
Science~Ms. Sue
Chemical property
posted on November 28, 2017 
math
3 sailboats to 6 fan boats
posted on November 11, 2017 
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 
CHEMISTRY
18.75L
posted on December 15, 2016 
chemistry
1.2E4 mols/kg
posted on November 13, 2016 
Math
Jdj
posted on May 29, 2016 
physics
tell me
posted on May 19, 2016 
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 
biochem
answer is 1,638,400 18 generations original is not included
posted on March 22, 2016 
Physics
2546
posted on February 12, 2016 
physics
I want the answer. Where is it ?
posted on April 12, 2015 
physics
0.5J
posted on March 8, 2015 
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 
physics
test
posted on November 5, 2014 
physics
1414.2
posted on June 14, 2014 
Accounting
32
posted on May 15, 2014 
business&technical english
ans is biasfree language.
posted on May 5, 2014 
business&technical english
I or we is the answer.
posted on May 5, 2014 
English
what is the meaning of the heaven were let loose
posted on December 4, 2013 
finance
r= 3.5+1.08(103.5)
posted on July 19, 2013 
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 
Chemistry
So in this case, that a small amount of your unknown failed to dissolve in the tbutanol, it would effect the molar mass, just depending on the mass of both substances?
posted on February 2, 2013 
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 
chemistry
Thanks
posted on January 18, 2013 
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 
Algebra 1
m= y221/x2x1 m= 6(4)/46 m=2/2 therefore m= 1 the answer is b) good luck :)
posted on April 25, 2012 
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 
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