Saturday
December 3, 2016

# Posts by reem

Total # Posts: 62

chemistry
5. One hundred milligram of caffeine is dissolved in 50 mL of water. a. How many mg of caffeine will remain in the water if you extract with 20 mL of methylene chloride? Show your calculations (KD = 4).b. How many mg of caffeine will remain in the water if you extract two ...
October 17, 2016

chemistry
Choose the pair of substances that are most likely to form a homogeneous solution. N2O4 and NH4Cl C6H14 and C10H20 LiBr and C5H12 C6H14 and H2O None of the pairs above will form a homogeneous solution.
February 3, 2016

science
A ball is dropped from a height of 10 meter.If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back?
December 17, 2015

Aths
Convert the following measurements to the units specified
September 28, 2015

Math
This website is very very bad
April 15, 2015

plz help me
1)When a 10-kg crate is pushed across a frictionless horizontal floor with a force of 14 N, directed 25° below the horizontal, the magnitude of the normal force of the floor on the crate is (g = 10 m/s2): 2)A constant force of 2.8 N is exerted for 9.0 s on a 6.1-kg object ...
April 8, 2015

plz help me
A 2.8-kg block slides down a frictionless plane that makes an angle of 57° with the horizontal. The acceleration of the block is (g = 10 m/s2):
April 8, 2015

Physics
A 20kg box is being pushed across the floor by a constant force (90,0,0)N. The coefficient of kinetic friction for the table and box is 0.25. At t=5s the box is at location ( 8,2,-1)m, traveling with velocity (3,0,0) m/s. What is the position and velocity at t=5.6s?
March 24, 2015

chemistry
If 0.130 g of p-aminophenol is allowed to react with excess acetic anhydridre , what is the theoretical yield of acetaminophen in moles ?In grams?
February 12, 2015

chemistry
2) why should you use a minimum amount of water to rinse the conical vial while transferring the purified acetaminpophen to the hirsch funnel?
February 12, 2015

physics
When a pencil cell is released from a certain point on a inclined board,it travels a distance of 35cm on floor A before it comes to rest.when the same pencil cell is released from the same point on the same inclined board,it travels a distance of 20 cm on floor B before coming...
July 27, 2014

psudoecode
Design a sub-class of SimpleCalculator called Calculator using psudoecode that contains public methods named multiply(), and divide() and that defines private fields called num1 and num2. Each of the methods accepts two numeric arguments and returns a number that represents ...
July 21, 2014

psudoecode
Design a sub-class of SimpleCalculator called Calculator using psudoecode that contains public methods named multiply(), and divide() and that defines private fields called num1 and num2. Each of the methods accepts two numeric arguments and returns a number that represents ...
July 21, 2014

Design
Design a class named StockTransaction that holds a stock symbol (typically one to four characters), stock name, number of shares traded, and price per share. Include methods to set and get the values for each data field. Create the class diagram using UMLet and write the ...
July 16, 2014

visual logic
The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design Visual Logic Flowchart for a program that accepts data about an ad: customer ...
June 22, 2014

pseudocode app
STEVE i don't understand what should first write
June 16, 2014

pseudocode app
Write the pseudocode for an application that allows a user to enter the price of an item and computes 8 percent sales tax on the item and prints out for the user the original price and the tax but not the total.
June 16, 2014

physics
A particle moves along a straight line such that its position is defined by s = (t3 – 3 t2 + 2 ) m. Determine the velocity of the particle when t = 4 s.
March 23, 2014

physics
A=ax+by B=cx+dy If a = 5 , b = 5, c = 4 and d = 1. Find the direction of -A (in degrees): relative to +x
March 1, 2014

physics
choose the correct answer and why? a car starts from rest and reaches speed of 80 km/h in 16 s the average acceleration of the car is: a\ 0.7 m/s*2 b\1.4 m/s*2 c\5 m/s*2
February 20, 2014

PHYSICS
A girl rows 10 km downstream in 2 h. Her return trip takes 3 h. How fast is the current. in km/
February 19, 2014

PHYSICS
car traveling at 28.8 m/s hits a stone wall . The driver, who is wearing a shoulder harness and seat belt, moves forward 0.93 m as the car stops. Assuming his acceleration is uniform, find his average velocity during the collision. in m/S
February 19, 2014

PHYSICS
A girl rows 10 km downstream in 2 h. Her return trip takes 4 h. How fast can she row in still water. in km/h?
February 19, 2014

PHYSICS
Sun..BLANK....than moon. earth iS..BLANK... mercury.
February 19, 2014

PHYSICS
A woman wantes to drive 83 km in 2 h. If she average 42 km/h for the first 1.27 h, what average velocity must she maintain for the remaining time in km/h
February 19, 2014

September 16, 2013

physics
An object of mass m = 5 kg is suspended by three cables as shown in the figure. If the tension T2 in the horizontal cable is 12 N: 1) What is the angle ƒáƒn that the left cable makes with the horizontal?
November 20, 2012

Physics
(-2.0 μC+Ne = -8.0 μC-Ne) 2Ne= 6E-6 Ne= 3E-6 N= q/e =3E-6/1.6E-19 N= 1.9E13 electrons
July 23, 2012

physic
A 16 g piece of glass floats in bromoform (density = 2.89 g/ cm3) but sinks in bromobenzene (density = 1.52 g/ cm3), in which it has an appparent mass of 3.84.. What is the density of the glass ( in g/ cm3):
April 23, 2012

grammar
i want excersis
July 1, 2011

PHY
Ok..I think I know the answer, but I have not been able to find it anywhere... An electrical field is best described as A)fact B)hypothesis C)theory I think its a theory, but I would appreciate any help! Thank you.
May 31, 2011

litreature - king lear
who said this quotation in king lear: thou shoulds't not have been old till thou hadest been wise.
May 24, 2011

language grammar
can someone explain to me what is inductive mood, subjunctive mood, andimparitive moodby giving examples. thanks
May 20, 2011

calculus
i need a real life application on parabola.
May 16, 2011

litreature-vocab
write sentence using each of the following 1) Affliction: means: effect 2) Pudder: means : turmoil 3) Scanted.means: negleacted. 4) Perpetual: means: ever lasting. 5) Entreat: means: plead, 6) sustain:
May 15, 2011

litreature
do you have any other sites
May 13, 2011

litreature
thanks
May 13, 2011

litreature
can you give me some multiple choice question about act 3 in king lear
May 13, 2011

phsychology
give example of external, unstable and specific explanation for disappointing event
May 9, 2011

language
any type of poem, and any thing you like
May 8, 2011

language
May 8, 2011

litreature
i don't want you to write me the journal i need only some hint to write
May 1, 2011

litreature
this journal is about king lear sorry i forget to mention it in the question thanks
May 1, 2011

litreature
please help me , this journal is for tomorow and i can't do it: the idea that power courrupts but suffering can redeem is fairly common plot support this theme, please answer as fast as you can . thank you
May 1, 2011

litreature- king lear
write a journal in king lear : the idea tha power corrupts but suffering can redeem is farily common plots support this theme
May 1, 2011

english
no thanks i found the answers
May 1, 2011

english
May 1, 2011

english
in kinglear act 2: who is curan and what position does he hold in society. 2) edgar decide to disguie himself as what? 3) Regan and Goneril tell lear he is what type of a man
May 1, 2011

calculus
this is question no what?
May 1, 2011

calculus
May 1, 2011

calculus
find the vertex,focus, direction of the parabola. use a graphing utility to graphthe parabola: 1) x^2-2x+8y+9=0 2) y^2-4y-4y=0 3) x=1/4(y^2+2y+33) 4)(x+1/2)^2=4(y-1) 5) y= 1/4(x^2-2x+5)
May 1, 2011

math
what does Q1 and Q3 and interquartile range means
February 12, 2010

biology
where in a chloroplast would you find the highest concentration of protons?
October 16, 2009

simple subjects,simple predicate
what is simple subject and simple predicate
October 7, 2009

Managerial Finance
Taking into consideration that their is a restriction on additional borrowing ( covenant prohibit issunace od any additional debt) ?
December 10, 2008

Managerial Finance
If the company opts ( choose) not to expand, what is the implication for the company's future borrowing needs? What are the implications if company does expand ?
December 10, 2008

Managerial Finance
If the company opts ( choose) not to expand, what is the implication for the company's future borrowing needs? What are the implications if company does expand?
December 10, 2008

Managerial Finance
If the company opts ( choose) not to expand, what is the implication for the company's future borrowing needs? What are the implications if company does expand?
August 19, 2008

Managerial Finance
Dear sherill, In term of McKenzie case study from the corporate fiance by Ross . Do you have the answers to the remaning questions ?
August 19, 2008

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