# fatima

Popular questions and responses by fatima-
## Physics

a 2.5kg block initially at rest on horizontal surface. A horizontal force F of magnitude 6N and a vertical force P are the applied to the block. The coefficients of friction for the block and surface are Ms=0.4 and Mk=0.25.Determine the magnitude of the

*asked on October 8, 2011* -
## chemistry

A certain reaction is spontaneous at 72˚C. if the enthalpy change for the reaction is 19Kj/mol, what is the minimum value of ΔS (in J/K•mol) for the reaction?

*asked on November 22, 2014* -
## chemistry

What is the mass, in grams, of 7.40×1020 molecules of caffeine, C8H10N4O2

*asked on July 24, 2013* -
## chemistry

In a certain experiment a student finds that the PHs of 0.10 M solutions of three potassium salts KX, KY, and KZ are 7.0, 9.0, and 11.0, respectively. Arrange the acids HX, HY, and HZ in order of increasing acid strength.

*asked on November 22, 2014* -
## Maths

Colin walked a distance of 15 miles in 6 hours Work out Colin's average speed Give your answer in miles per hour

*asked on June 2, 2019* -
## Economics

Which one of the following statements about capital flight is correct? A. Capital flight refers to the tendency of developing countries to overinvest in commercial aircraft. B. Capital flight refers to developing countries' citizens accumulating or

*asked on June 18, 2018* -
## Economics

Which one of the following statements about efficiency wages is correct? A. An efficiency wage is a "wage" that contains a profit-sharing component as well as traditional hourly pay. B. An efficiency wage is an above-market wage that minimizes a firm's

*asked on May 27, 2018* -
## economics

In which phase of the business cycle will the economy most likely experience rising real output and falling unemployment rates? A. Peak B. Recession C. Expansion*** is my answer D. Trough

*asked on February 21, 2018* -
## Economics

Which one of the following statements about the World Bank is correct? A. The World Bank provides gold for developing countries that want to go on the gold standard. B. The World Bank provides short-term loans to developing countries that are incurring

*asked on June 6, 2018* -
## Economics

Which one of the following statements is correct under the theory of supply-side economics? A. High marginal tax rates severely discourage work, saving, and investment. B. Transfer payments increase incentives to work. C. Increases in social security taxes

*asked on May 21, 2018* -
## chemistry

Which best describes the transition from gas to liquid?

*asked on February 7, 2013* -
## chemistry

In a group 1 analysis, a student adds hydrochloric acid to the unknown solution to make [Cl-] = 0.15 M. Some PbCl2 precipitates. Calculate the concentration of Pb2+ remaining in solutions.

*asked on November 22, 2014* -
## chemistry

A scientist is performing an experiment on a powder. Which of the following is a sign that a chemical change has definitely occurred during his experiment? The powder catches on fire. The powder releases bubbles. The powder heats up. The powder breaks

*asked on February 7, 2013* -
## Economics

Which one of the following is an example of direct foreign investment? A. General Motors building an auto production facility in China B. The purchase of debt issued by the Panamanian government C. A U.S. bank granting a loan to a Guatemalan firm D. A U.S.

*asked on June 19, 2018* -
## physics

A particle moves along the x-axis from an initial position xi to a final position xf. Of the following values of xi and xf, which results in a negative displacement? (a) xi = 6 m, xf = 4 m (b) xi = ?4 m, xf = ?2 m (c) xi = ?4 m, xf = 2 m (d) xi = 4 m, xf =

*asked on June 2, 2014* -
## algebra

Please help me anybody Abby Garland is parked at a mile marker on an east -west country road.She decides to toss a fair coin 10 times ,each time driving 1 mile east if it lands heads up and 1 mile west if it lands up tails up. The term random walk applies

*asked on August 22, 2012* -
## History

What’s brackobama’s last name

*asked on December 21, 2019* -
## Economics

The public debt is the amount of money that A. Americans owe to foreigners. B. state and local governments owe to the federal government. C. the federal government owes to holders of U.S. securities. D. the federal government owes to taxpayers. I chose C

*asked on March 27, 2018* -
## chemistry

In an experiment, 6.700g of hydrogen sulfide is fully decomposed into its elements.If 0.396g of hydrogen is obtained in this experiment, how many grams of sulfur must be obtained?

*asked on July 27, 2013* -
## chemistry

How many moles of O2 are produced when 0.300mol of KO2 reacts in this fashion?

*asked on July 27, 2013* -
## chemistry

If one mole of hydrocarbon contain 4g of hydrogen and it molar mass is 40g.what is the homologous series of the compound

*asked on July 5, 2012* -
## physics

distinguish between impulse and momentum calculate the momentum of(a) themoon of mas 7×10kg travelling with a velocity of1•05m5-1 (b)a tanker of mass 7×10kgtrAvelling of 4m5-5

*asked on February 10, 2020* -
## physics

a particle is travelling in a straight line with constant acceleration.it covers 6m in the fourth second and 7m in the fifth second.find its acceleration and initial speed.

*asked on February 13, 2013* -
## precalculus

Suppose f is an even function and g is an odd function such that the composition fog is defined.d show that fog is an even function

*asked on September 23, 2012* -
## english

What information supports the idea that food should not be left out overnight?

*asked on May 15, 2019* -
## Math

A recipe for 2 dozen cookies calls for 1 1/3 cups of flour how much flour would be needed to make 5 dozen cookies

*asked on January 14, 2017* -
## Algebra

5x+3y=9x-7y I am having trouble in solving. My answer is ending in fractions. And do far I have gotten y=-1/7

*asked on January 11, 2017* -
## physics

If two stones projected from the same point with the same speed but at angles pi/3 and pi/6 respectively have their ranges R₁ and R₂ then a)R1=2R2 B)R1=R2 C)R1=5R2 D)R1=25R2

*asked on June 15, 2014* -
## physics

"a drag racing car starts from rest at t= 0 and moves along astraight line with velocity given by V = bt^2 where b isconstant. The expression for the distance traveled by this car from its position at t = 0 is a)bt^3 b)bt^3/3

*asked on June 4, 2014* -
## Chemistry

what mass in grams of sodium hydroxide is produced if 20.0g of sodium metal reacts with excess water according ro the chemical equation, Na(s)+H2O4->naoh(aq)+h2(g)

*asked on March 10, 2013* -
## math

y= 2sin(2x-pi/4) find amplitude, period, phase shift, assymptote and graph

*asked on October 26, 2012* -
## Linear algebra

Show that the origin is the only equilibrium point of the system? X=ax+by Y=cx+dy Wherea,b,c and d are constants, with ad-bc not aqual to 0(zero) Please show me how to do this problem Please show me the work

*asked on October 11, 2012* -
## Precalculus

give an example of two decreasing functions whose product is increasing

*asked on September 28, 2012* -
## Pre calculus

give an example of two decreasing functions whose product is increasing

*asked on September 23, 2012* -
## 11th grade mths

Please check urgently .I have to submit the assignment A give an example of a function whose domain equals the set of real numbers and whose range equals the set? the set {-1,0,1} BGive an example of a function whose domain equals (0,1)and whose range

*asked on September 18, 2012* -
## Maths

A give an example of a function whose domain equals the set of real numbers and whose range equals the set? the set {-1,0,1} BGive an example of a function whose domain equals (0,1)and whose range equals [0,1] C.Give n example of a function whose is the

*asked on September 17, 2012* -
## 11th grade maths

A.give an example of a function whose domain is {3,4,7,9}? and whose range is {-1,0,3} B.Find two different functions whose domain is {3,8}and whose range is {-4,1} C Explain why there does not exist a function whose domain is {-1,0,3} and whose range is

*asked on September 17, 2012* -
## Physics

A long cylindrical insulator has a uniform charge density of 1.0 #C/m3 and a radius of 9.0 cm. a) What is the electric field inside the insulator at a distance of 4 cm? b) What is the electric field at 17 cm? c) How much work must you do to bring a q =

*asked on March 10, 2012* -
## math/algebra

three fourths = seven tenths = two thirds = eleven twentieths = five eights = twenty one twenty five =

*asked on February 29, 2012* -
## college

Positive charge is distributed throughout a long non-conducting cylindrical shell of inner radius R and outer radius 2R. At what radial depth beneath the outer surface of the charge distribution is the electric field strength equal to one-half the surface

*asked on November 30, 2010* -
## physics

how do green plants produce food

*asked on December 13, 2009* -
## chemistry

2. Imagine you have two beakers. Both beakers are filled with the same amount of water. The water in both beakers is the same temperature as well. You add 50 g of Substance A to the first beaker, and 50 g of Substance B to the second beaker. After stirring

*asked on October 22, 2009* -
## Statistics

roll 2 standard dice and add the numbers. what is the probability of getting a number larger than 8 for the first time on the third roll?

*asked on April 14, 2020* -
## Math

16. A survey of a random sample of voters shows that 52% plan to vote for the incumbent and 48% plan to vote for the challenger. The survey has a margin of error of pm5\% . What is the range for the percentage of voters who plan to vote for the incumbent?

*asked on December 13, 2019* -
## algebra

evaluate 8c5

*asked on October 29, 2019* -
## math

0.015*0.567/0.05*9.189 evaluate it in a standard form

*asked on October 6, 2019* -
## English

Why did ali excitedly get ready for school?

*asked on September 12, 2019* -
## Science

What fraction of the children should be homozygous smooth

*asked on July 14, 2019* -
## Science

According to chance, what fraction of their children will have dimples?

*asked on July 14, 2019* -
## Maths

2cosx=3^1/2

*asked on February 5, 2019* -
## chemistry

120g of sodium hydroxide pellets dissolve in 800cm3 of its solution. Determine the mass concentration of the solution

*asked on October 13, 2018* -
## Science

The density of aluminum is 2.7 the volume of a piece of aluminum if it mass 8.1 grams?

*asked on September 5, 2018* -
## art

Which artistic value is least apparent in Mannerist paintings? A. Serptentine curves B. Dramatic lighting C. Elegance D. Refined style I think my answer is C

*asked on July 9, 2018* -
## Economics

When most consumers and firms reduce spending only because they expect other consumers and firms to reduce spending, and a recession results, A. a self-correction has occurred. B. an adverse aggregate supply shock has occurred. C. a coordination failure

*asked on June 8, 2018* -
## Economics

The international agency that lends money to developing countries for economic development projects is the A. World Credit Union. B. World Bank. C. International Monetary Fund (IMF). D. World Trade Organization (WTO). my answer is B

*asked on May 20, 2018* -
## physisc

A force in the +x-direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 7.40 kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box.If the box is initially at rest at x=0,

*asked on March 25, 2018* -
## Physics

A pendulum with a bob of mass 150 g has the same period as a thin rod (not massless) of the same mass and length 17 cm when the rod is pivoted about its end. What is the length of the pendulum?

*asked on December 10, 2017* -
## Physics

Suppose a boy walks a displace of 3km east wards yo à point and then walks another 6km west wards what is his displacement from his starting point

*asked on October 28, 2017* -
## government

Wtat is legitimate government? Outline any four features of legitimacy? What is simple majority sysyem? Outline four demeits of the system

*asked on April 12, 2017* -
## physic

A particle of mass 10kg Move in a circular orbit of ratio 2cm with a linear velocity of 0.2m/s calculate the angular velocity, the frequency and the centripetal force

*asked on February 12, 2017* -
## Math

determine the value(s) of k which the equation x^2+kx+9=0 will have a) two real roots b) 2 distinct roots I tried to find the discriminant but I didn't get the right answer.

*asked on October 2, 2016* -
## Maths

A garden has a small rectangular lawn surrounded by a flower-bed of equal width. The lawn measures 5 metres by 12 metres and the flower-bed has a width of x metres. Write an expression for the area of the garden and flower-bed

*asked on May 29, 2016* -
## chemistry

what is the mass of bromine contains the same number of atoms of 50.0 g of iodine? my work: 50g/79.5g= .628 mol(Br) 50g/126g=.394 mol(I)

*asked on November 4, 2015* -
## Chemistry

How many kJ is released when 3.4 mol of water is frozen?

*asked on September 14, 2015* -
## economic

which policy will be favorable for the consumers (buyer of the cars only) of Pakistan.

*asked on February 12, 2015* -
## Management

which reason total earning of emoloyees decrease. while who worked more efficiently

*asked on December 2, 2014* -
## management

why total earning of employee's job decrease while who worked more efficiently.

*asked on December 2, 2014* -
## math

Find the maximum and minimum values of the given objective function on the indicated feasible region. M = 150 − x − y

*asked on November 17, 2014* -
## university of minnesota

Find the maximum and minimum values of the given objective function on the indicated feasible region. M = 150 − x − y

*asked on November 17, 2014* -
## Math

Joan ran for 2.25 hours burning 3075.5 calories per hour how many total calories does he burn

*asked on November 16, 2014* -
## math

natasha had 7/8 gallon of paint. her brother ivan took 1/4 gallon to paint his model boat. natasha needs at least 1/2 gallon to paint her bookshelf. did ivan leave her enough paint?

*asked on November 6, 2014* -
## Math (Word Problem)

An open gift box is to be made from a square piece of material by cutting four-centimeter squares from the corners and turning up the sides. The volume of the finished box is to be 576 cubic centimeters. How to find the size of the original piece of

*asked on October 11, 2014* -
## english

write a analogy paragraph "the process of reading a good book"

*asked on August 6, 2014* -
## physics

If the change in the value of 'g ' at a height 'h ' above the surface of earth is the same as at a depth 'x ' below it. When both x and h are much smaller than the radius of the earth. The relation between x and h is?

*asked on June 18, 2014* -
## accounts

People from all over the world moving from sole proprietorship to partnerships due to the numerous benefits they get. You are required to tell why the focus is shifting from sole proprietorship to partnership? Explain your answer with the help of at least

*asked on May 3, 2014* -
## english

which language is used to make comparisons in business communication

*asked on May 2, 2014* -
## accounts

People from all over the world moving from sole proprietorship to partnerships due to the numerous benefits they get. You are required to tell why the focus is shifting from sole proprietorship to partnership? Explain your answer with the help of at least

*asked on May 1, 2014* -
## Finance

ABC Company is engaged in the manufacturing of electronic equipment. The Company has reported net loss for the year 2013 but its Cash Flow Statement is showing a positive net cash flow. Being a student of Business Finance, you are required to discuss

*asked on April 28, 2014* -
## microeconomics

Market demand is given as QD = 200 – 3P. Market supply is given as QS = 2P + 100. Each identical firm has MC = 0.5Q and ATC = 0.25Q. What quantity of output will a typical firm produce? a.10 b.20 c.30 d.40

*asked on March 30, 2014* -
## math

How business mathematics can help you in making decision about investment in a business.

*asked on February 17, 2014* -
## Nuclear Radiation Technology

T1/2(Ra-226) = 1602 years What is the activity of 1 gram of Ra-226? Give the answer in Ci and Bq? What would be this activity after 1T1/2 and 5T1/2? Someone please help me with this question.

*asked on February 3, 2014* -
## English

Write a letter to the editor or a speech calling for a change that you would like to see in your community and reference the three works as evidence that non-violence and civil obedience are an effective method for affecting change Using these sources -

*asked on December 16, 2013* -
## english

use these five words given below and write a essay 120 to 140 words 1.family 2 television 3 entertainment 4 mother 5 day time

*asked on December 10, 2013* -
## english

Read the paragraph below and complete the cause-and-effect chart. Erosion is a natural process. During the erosion process, soil and rocks are worn away by the elements. Most erosion results from a combination of several factors, including heat, cold,

*asked on December 9, 2013* -
## math

Suppose you are managing an account in which you deposit Rs. 20,000 at the end of each year for 20 years. How much amount you have accumulated with the assumption that you earn 5% interest compounded annually.

*asked on December 7, 2013* -
## math

Ali needs to borrow Rs 500,000 for three years. Which of the following option is more beneficial for him? (i) 3.2 % simple interest rate (ii) 1.6% compound interest rate when it is compounded semi annually

*asked on December 7, 2013* -
## science physics

arthur is riding a horse at a velocity of 4m/s. four seconds after, he is already traveling at a velocity of 12m/s. what is his acceleration

*asked on October 7, 2013* -
## chemistry

3.1×10−2 Molarity MgSO4. Express your answer numerically using two significant figures.

*asked on July 26, 2013* -
## chemistry

How many moles of HNO3 are present in 34.0 mL of a 4.70 M solution of nitric acid?

*asked on July 25, 2013* -
## physics

a body moves in a straight line with initial velocity and uniform acceleration.find how far it travels in12s,given that it travel 246m in the 1st 6seconds,and 69m in the last 3seconds.find also the initial velocity.

*asked on February 13, 2013* -
## physics

a body moves in a straight line with initial velocity and uniform acceleration.find how far it travels in12s,given that it travel 246m in the 1st 6seconds,and 69m in the last 3seconds.find also the initial velocity.

*asked on February 13, 2013* -
## physics

a body moves in a straight line with initial velocity and uniform acceleration.find how far it travels in12s,given that it travel 246m in the 1st 6seconds,and 69m in the last 3seconds.find also the initial velocity.

*asked on February 13, 2013* -
## science

a particle ia projected upward with a velocity of u m/s and after an interval of t(s) anoda particle is projected upward from the same point and wit the same initial velocity.proof dat they will meet at a height of (4u^2/8g-g^2t^2/8g)

*asked on February 13, 2013* -
## science

a particle is projected vertically upward with the velocity u m/s and after t(s) another particle is projected upwards from the same point and with the same initial velocity. proof that the particle will meet after a lapes of (u/g + t/2)seconds from the

*asked on February 13, 2013* -
## science

a particle moving in a straight line with constant acceleration passing over distances x,y,z in equal consecutive interval of time(t).find the relation between x,y and z..and the acceleration of the body.

*asked on February 13, 2013* -
## math6

shaunti drove 621miles in 11.5 hours.wht was her average speed in miles per hour?

*asked on February 4, 2013* -
## Math

1. What is a ratio? a. What is the difference between a ratio and a fraction? b. What are the similarities between ratios and fractions? c. Remember that order is important! d. How do you simplify ratios?

*asked on September 26, 2012* -
## precalculus check immediately

suppoe f is a function with domain [1,3]and range[2,5]? define functions g and h by g(x)=3f(x)and h(x)=f(4x) what is domain and range of g what is domain and range of h I solved it and got it like this domainof g=[1,3]and range of g=[3,9] Domain of

*asked on September 24, 2012* -
## precalculus

suppose the only information you know about a function f is that the domain of f? is the set of real numbers and that f f(1)=1,f(2)=4,f(3)=9,f(4)=16what can you say about the value of ,f(5). Hint the answer to this problem is not 25 the shortest correct

*asked on September 23, 2012* -
## precalculus

Suppose g is an even function and f is any function such that the composition fog is defined. show that fog is an even function

*asked on September 23, 2012*

## Pages

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