Wednesday

January 28, 2015

January 28, 2015

Total # Posts: 983

**physics**

A combination of .403 kg of water at 45.1 C, .471 kg of aluminum at 41.1 C, and .307 kg of copper at 50.4 C is mixed in an insulated container and allowed to come to thermal equilibrium. Determine the final temperature of the mixture. Neglect any energy transfer to or from the...
*February 13, 2011*

**Math**

I have 4 tops,6 bottoms and 3 different pairs of sandles. How many combinations can make?
*February 6, 2011*

**American Government**

All of the following statements correctly describe the typical independent agency except: A. it has a narrower area of responsibility than cabinet departments. B. it is divided into a number of smaller operating units. c. its employees are mostly hired through the civil ...
*February 6, 2011*

**Geometry**

A = 45 radical 39
*January 27, 2011*

**Geometry**

The diagonal of a rectangle is 24 inches. The width is 15 inches. What is the area?
*January 27, 2011*

**Geometry**

12 pi radical 2 = C
*January 27, 2011*

**Geometry**

The area of a circle is 72pi. What is the circumference?
*January 27, 2011*

**us history**

One of the significant changes in atmosphere in Jefferson's administration was: the number of common people involved in government the closing of the Bank of the United States the widespread dismissal of Federalist officeholders the reinstatement of the Alien and Sedition ...
*January 21, 2011*

**5th grade math **

could u please show me an example
*January 12, 2011*

**Algebra 2**

f(x)=2.25 plus 2.75x
*January 9, 2011*

**Algebra**

y-2=.5(x-4)
*January 5, 2011*

**Physics**

A weight W is now placed on the block and 7.7 N is needed to push them both at constant velocity. What is the weight W of the block? Answer in units of N.
*January 5, 2011*

**Finance**

I've solved every problem in my assignment except for two. I only need one more to get the grade I'd like/need. I've been doing this one over and over, consistently getting wrong answers. I know the process of how to do it generally, but I feel I make mistakes in ...
*January 2, 2011*

**Elements and Compounds**

A formula contains numbers below the elements called__________________? The subscripts in chemical formulas tell us the _______________of particles that combine in a compound.
*December 14, 2010*

**science**

Scientists write symbols for compounds called _______?
*December 14, 2010*

**trig**

Hank rides 2 hours total on a bicycle trip into the country and back. He rode out at the rate of 20 mph and returned at the rate of 24 mph. How far into the country did Hank ride
*December 12, 2010*

**Calc**

Find an equation of the tangent line to the graph of the function at the given point. 1 + ln xy = e^(x-y), (1,1)
*December 6, 2010*

**physics**

In a tennis serve, a 7.9×10−2 ball can be accelerated from rest to 33 over a distance of 0.80. Find the magnitude of the average force exerted by the racket on the ball during the serve.
*December 6, 2010*

**Calc**

Show that f is strictly monotonic on the given interval and therefore has an inverse function on that interval. f(x) = abs. val. (x + 2), [-2, infinity)
*December 6, 2010*

**Physics**

Two thin rectangular sheets (0.29 m 0.40 m) are identical. In the first sheet the axis of rotation lies along the 0.29-m side, and in the second it lies along the 0.40-m side. The same torque is applied to each sheet. The first sheet, starting from rest, reaches its final ...
*December 5, 2010*

**Calc**

Find y' for y = x/(x+y)
*December 3, 2010*

**Calc**

Find dy/dx for y = sq. root (2x+1) * x^3
*December 3, 2010*

**4th grade**

Terrance describes the amount pf money made based on the number of hours worked by the function rule y = 10h. Given this function, how much money does Terrance earn for each hour worked? Explain
*December 1, 2010*

**economics**

Governments support these monopolies because they are natural monopolies, i.e. in these markets the efficient market structure is a monopoly. These markets all involve high initial captial outlay and very low marginal costs, and if there was more than one firm in the industry ...
*November 19, 2010*

**11th grade everything :)**

3+3+3=9=1 triangle 4+4+2+2=12=1 rectangle 3+3+3+3=12=1 square 9x10=90 for 10 squares 8x12=96 for 8 rectangle 4x12=48 for 4 squares 90cm+96cm+48cm=234cm for total perimeter perimeter of triangle=s^3=s+s+s perimeter of square= l+l+w+w perimeter of square=s^4=s+s+s+s hope this ...
*November 19, 2010*

**Stat**

ncdf(40,1000,36,5)=.212 a) ncdf(35,45,36,5)=.543 b) its been a while so im not 100% sure if its right but i think it is :) dont forget to draw the normal curves on your assignment my teachers alwyas made me haha
*November 18, 2010*

**11th grade**

Find the lowest common denominator of the rational expression: 1/m = (m-34) / 2m squared
*November 17, 2010*

**chemistry**

Calculate the mass (in grams) of water vapor produced when 56.0 grams of pure hydrogen gas burn in the air. Given the information from that, calculate the mass of oxygen gas that would be needed to burn 100 grams of hydrogen gas.
*November 15, 2010*

**chemistry**

Calculate the mass (in grams) of water vapor produced when 56.0 grams of pure hydrogen gas burn in the air. Given the information from that, calculate the mass of oxygen gas that would be needed to burn 100 grams of hydrogen gas.
*November 15, 2010*

**college**

Compare the event to one or more similar events. When comparing, use at least three comparatives and three superlatives.
*November 8, 2010*

**chemistry**

If you need 600 mL of a .5 M NaOH solution and 3 M NaOH is provided, how much of the 3 M NaOH will you need?
*November 3, 2010*

**Economics**

1) Rent is not part of variable cost and hence variable cost will remain same whereas average cost would come down with decrease in rent. 2) Reducing no of shift would decrease out put. Hence, both variable cost and average cost will increase and move up in the graph. 3) ...
*November 1, 2010*

**Comm**

Write five sentences about the role of education in successful financial planning in the spaces on the following page. Correctly use a different verb tense in each sentence.
*November 1, 2010*

**MAT117**

SOLVE ^Y+6-1=4 A) The solution to Y=_ OR B)Solution is not a real number Can't figure this one out... This is what I came up w/ Y=^5
*November 1, 2010*

**MAT117**

i'm taking quiz so i can't access my books or I would have did that. Thanks though...
*November 1, 2010*

**MAT117**

SOLVE ^Y+6-1=4 A) The solution to Y=_ OR B)Solution is not a real number Can't figure this one out... This is what I came up w/ Y=^5
*November 1, 2010*

**Journalism **

We are currently studying censorship. At my school, a recent incident occured, and I want your opinion of whether it qualifies as censorship. An editorial was written about an occurence at my school, which resulted in disciplinary action. One line in the article mentioned that...
*October 24, 2010*

**Math 3**

graphing log functions for y=log12^x I don't have a calculator for this and I would like to know how to work this problem on paper so I can graph it to my chart. Can someone please help me with this problem?
*October 20, 2010*

**chemistry**

What is the net ionic equation for the reaction of AgNO3 with Ba(OH)2?
*October 18, 2010*

**writing**

Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards.
*October 17, 2010*

**college criminal justice**

Thanks so much for your help its well appreciated!!!!
*October 13, 2010*

**college criminal justice**

I would just like to know some theories that would explain the prevalence of crime... Thank you
*October 13, 2010*

**college criminal justice**

which theory of crime do you think best explains the prevalence of crime in the United States; Explain your answer by giving an example?
*October 13, 2010*

**spanish **

what does elegantes mean??
*October 9, 2010*

**spanish **

who understands spainsh???????
*October 9, 2010*

**8th grade**

because we look really sexy with them :)
*October 2, 2010*

**6th grade, social studies**

I am having some problems figuring out this question.... How does using the five themes help geographers understand the places they study?
*September 27, 2010*

**Math Factoring completly**

21x^2-91x-70
*September 22, 2010*

**Physics**

A rifle is aimed horizontally at a target 52 m away. The bullet hits the target 2.2 cm below the aim point.
*September 19, 2010*

**geometry**

the area of a circle is 28.26 square centimeters. what is its (use 3.14 pie)
*September 16, 2010*

**Science**

HAHA... she is a babe so im going to ask her out lol
*September 16, 2010*

**Science**

HAHA LOVE YOU TOOOOO!!! Hey did ya get that hot chick yesterday?
*September 16, 2010*

**Science**

i need this for my homework.... sooooooooooooo tell me the answer!
*September 16, 2010*

**6th grade**

i am a 3 digit number divisible by 3. my tens digit is 3 times as great as my hundreds digit and the sum of my digits is 15. if you reverse my digits i am divisible by 6 as well as 3. what number am i?
*September 14, 2010*

**statistics**

4. What is the range of the values 2.0, 3.7, 4.9, 5.0, 5.7, 6.7, 8.5, and 9.0? Answer: ________________________ What is the mean? _______________________ What is the median? ____________________ What is the mode?
*September 7, 2010*

**Health**

Why are all parts of your health equally important
*September 6, 2010*

**Health**

List four ways to keep your health balanced
*September 6, 2010*

**health**

we were not given choices
*September 6, 2010*

**health**

as you grow up stress in your live is sometimes caused by ?
*September 6, 2010*

**Math**

write an expression for the mean of 4,5,6,7 and 8
*September 4, 2010*

**algebra**

The sides of a triangle have measures of x, x, and y, and the perimeter of the triangle is 46. The measure y is 4 centimeters longer than the measure x. Write two equations which represent the two sentences. Solve the system you wrote for this using any technique.
*September 1, 2010*

**algebra 1**

An item costs c dollars and 6% sales tax is charged The total cost including sales tax is given by the expression 1.06c you are buying a skateboard that cost $75 what is the cost of the skateboard
*August 23, 2010*

**5th grade**

The number has 7 digits It is evenly divisible by 100 The value of one of the digits is 60,000 The digit in the hundreds place is both even and prime The digit in the thousandr place is half the value of the digit in the ten thousands place The digit in the hundred thousands ...
*August 16, 2010*

**chemistry**

A student titrated 10.00mL aliquots of her unknown amino acid solution with standard 0.1521M NaOH and with 0.0986M HCl. Inflection points were determined in the graphs after 3.29mL of HCl and 18.61mL of NaOH were added. Calculate the concentration of the amino acid
*August 5, 2010*

**Biology**

What you did was all right, but they're not asking a normal question involving all of the moths. They're asking for the percentage out of only the grey moths, which eliminates the moths with the gg phenotype. Another, more useful way of finding the percent of ...
*July 4, 2010*

**english**

help diagram sentence: Sandra and I are planning to go to the mall tomorrow, but today I am working on my paper.
*June 28, 2010*

**physics**

I am really not good at physics. How would I go about finding how long it takes the elevator to fall? Is it going to have something to do with 9.8m/s?
*June 10, 2010*

**physics**

Superguy is flying at treetop level near Paris when he sees the Eiffel Tower elevator start to fall (the cable snapped). His x-ray vision tells him Lois LaTour is inside. If Superguy is 1.00 km away from the tower, and the elevator falls from a height of 122.5 m, how long ...
*June 10, 2010*

**physics**

How do you obtain the vertical and horizontal components? is that the 31.8sin35 and 31.8cos35? Thanks
*June 10, 2010*

**physics**

The highest mountain on Mars is Olympus Mons, rising 38569 meters above the Martian surface. If we were to throw an object horizontally off the mountain top, how long would it take to reach the surface? (Ignore atmospheric drag forces and use gMars = 3.72 m/s2.)
*June 10, 2010*

**physics**

A jet airliner moving at 500 mph due east moves into a region where the wind is blowing at 120 mph in a direction north . What is the new velocity and direction of the aircraft?
*June 10, 2010*

**Physics**

Two clouds each have a charge of 1*10^7C. If these clouds are 8.2*10^11m apart, what is the magnitude of the electric force between them?
*May 12, 2010*

**english**

what verb tense is this? The bird the whipped the insect about, throwing it down, and pierced it with its sharp beak.
*May 5, 2010*

**english**

what verb tense is this? After several minutes of this, the bird has disarmed the poisonous centipede satisfactoily.
*May 5, 2010*

**english**

what verb tense is this? Ellis shot pictures as fascinating scene unfolded.
*May 5, 2010*

**english**

what verb tense is this? when he finishes this roll of film, ellis will have taken over a hundred pictures of his favorite bird, the Mimus polyglottos.
*May 5, 2010*

**english**

what verb tense is this? Ellis has studied the mockingbird for 2 hyears now.
*May 5, 2010*

**english**

what verb tense is this. Because of his careful research and fascinating photos, ellis published 3 articles on robins befor he began this project.
*May 5, 2010*

**english**

what verb tense is this sentence? By this time next sorung, ellis will write a book based on his research on the multitalented mockingbird.
*May 5, 2010*

**MATH**

A PIZZA 18" D COST $9.00 FIND PRICE PER SQ IN.OF PIZZA
*April 27, 2010*

**MATH**

2 different answers didn't understand
*April 27, 2010*

**MATH**

A PIZZA 18" D COST $9.00 FIND PRICE PER SQ IN.
*April 27, 2010*

**10th grade**

the pros and cons of the proposed Wind Farm off the Massachusetts Coast
*April 19, 2010*

**6th grade science (physics)**

explain and describe Newton's 1st law and as it applies to forces, balanced forces and unbalanced forces
*April 18, 2010*

**6th grade science (physics)**

explain Newton's 1st law in relation to forces, balanced forces and unbalanced forces
*April 18, 2010*

**math**

Two chips are selected from a box containing 6 blue chips, 4 red chips, and 3 green chips. The first chip selected is not replaced before the second is drawn. Find P(red, then green).
*April 15, 2010*

**6th grade**

Do all Greek citizens have a say in their government today?
*April 13, 2010*

**more physics**

a 1.00-kg object is observed to accelerate at 10.0m/s∧2 in a direction 30.0 north of east. the force F2 acting on the object has magnitude 5.00 N and is directed north. determine the magnitude and direction of the force F1 acting on the object.
*March 25, 2010*

**physics**

A 5.00-kg object placed on a frictionless, horizontal table is connected to a cable that passes over a pulley and then is fastened to a hanging 9.00-kg object. Draw free-body diagrams of both objects. Find the acceleration of the two objects and the tension in the string.
*March 25, 2010*

**Physics**

a 1.00-kg object is observed to accelerate at 10.0m/s∧2 in a direction 30.0 north of east. the force F2 acting on the object has magnitude 5.00 N and is directed north. determine the magnitude and direction of the force F1 acting on the object.
*March 24, 2010*

**Physics**

A 5.00-kg object placed on a frictionless, horizontal table is connected to a cable that passes over a pulley and then is fastened to a hanging 9.00-kg object. Draw free-body diagrams of both objects. Find the acceleration of the two objects and the tension in the string.
*March 24, 2010*

**math**

An arch is in the form of a semi-ellipse, with its major axis as the span. If the span is 80 feet and the height is 30 feet write the standard equation.
*March 24, 2010*

**ap physics**

18081 J
*March 14, 2010*

**maths-9th grade**

what do you call a female bug that float
*March 4, 2010*

**ALGEBRA**

1,000 chairs- $1,005,000 100,000 chairs- $1,500,000
*February 28, 2010*

**health**

Write an essay evaluating the positive and negative influences of family, peers, and community on risk behaviors like drug, alcohol, and tobacco use; and sexual activities.
*February 3, 2010*

**internet basic**

business email messages should
*February 1, 2010*

**english**

The fire truck and the ambulance sped to the site of the train wreck. is it a simple sentence,compound sentence, run-on sentence or sentance fragment
*January 28, 2010*

**science/physics**

A woman at an airport is pulling her 19.0 kg by a strap at an angle of 32 ° above the horizontal as shown in figure Fig. P5.44. She pulls on the strap with a 40.0 N force, and friction is negligible. (a) What is the acceleration of the suitcase? (b) What normal force does ...
*December 10, 2009*

**science/physics**

A 0.09 kg ball of dough is thrown straight up into the air with an initial speed of 5.5 m/s (a) Find the momentum of the ball of dough at its maximum height. (b) Find the momentum of the ball of dough halfway to its maximum height on the way up.
*December 10, 2009*

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