Monday

December 22, 2014

December 22, 2014

Total # Posts: 1,276

**Physics**

In an arcade game, a ball is launched from the corner of a smooth inclined plane. The inclined plane makes a 33.3° angle with the horizontal and has a width of w = 42.9 cm. The spring-loaded launcher makes an angle of 45.0° with the lower edge of the inclined plane. ...
*January 30, 2011*

**COM155**

Thank you for your help! Have a great day.
*January 30, 2011*

**COM155**

Ok.....How is this? Identify those with errors by marking each of the errors in bold. Make the correction in parentheses after the error. For those that are correct, write correct at the end of the sentence. Their (There) are three kids in the room. We have been married for 20...
*January 30, 2011*

**COM155**

I think I found all of the errors, what do you think? Identify those with errors by marking each of the errors in bold. Make the correction in parentheses after the error. For those that are correct, write correct at the end of the sentence. Their (There) are three kids in the...
*January 30, 2011*

**math**

A manufacturer can produce 8,500 units for a total profit of 47,600.00 dollars, but if he increases his production to 11,500 units, then his profit becomes $65,600.00. fixed cost is? net profit per unit produced is?
*January 27, 2011*

**Math**

I got that far. But I still do not know how to find the fixed cost and net profit from the p(x) equation.
*January 27, 2011*

**Math**

A manufacturer can produce 8,500 units for a total profit of 47,600.00 dollars, but if he increases his production to 11,500 units, then his profit becomes $65,600.00. It follows that his fixed cost is? and his net profit per unit produced is?
*January 27, 2011*

**Math**

Thank you so much!
*January 24, 2011*

**Math**

So it would be 2 as well correct? Sorry, this is all new for me.
*January 24, 2011*

**Math**

If the slope of line f is 2,and a line d is parallel to the line f, what is the slope of line d?
*January 24, 2011*

**Math**

A model car is made to a scale of 2 to 25. If the model is 17 inches long, how long is the actual car?
*January 24, 2011*

**physics**

im trying to figure out this same problem!!!
*January 23, 2011*

**finanace**

Using 7.86 rate of return , what should be the current share price of AirJet Best Parts, Inc. if the company maintains a constant 1% growth rate in dividends and the most recent dividend per share paid on the stock was $1.50?
*January 23, 2011*

**Chemistry**

In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B 2A ---> 3B How many molecules of substance B are produced when 27.9 g of substance A reacts? the molar mass of substance A is 24.7 g/mol STEP 1: convert the mass of A to moles...
*January 22, 2011*

**Math**

I am a little confused, can someone please help me? I the radius of a circle is 5m, what is the area of the circle? Is this the same as the surface area and it would be 10m?
*January 21, 2011*

**math**

;5$$5=1 qui weep
*January 19, 2011*

**Social Studies**

Which of the following is not a means by which cultures became diffused?
*January 18, 2011*

**Social Studies**

Compare and contrast how Islam spread with how christianity spread.
*January 18, 2011*

**math**

The support wire for a sign meets the wall and the overhang as shown below. If m<2=42 degrees, find m<1. Explain your reasoning.
*January 18, 2011*

**psychology**

hi im stuck on a question on my assignment, question , sometimes when going to meet jamie , karen mistakes someone else for him , her motivation and expectations of seeing him effect her perceptions, could you direct me to one study illustrating either of these factors, and ...
*January 18, 2011*

**Math**

A cube is both a polyhedron and a prism. This isn't true right?
*January 17, 2011*

**Chemistry**

A 5.00-gram sample of glucose, C6H12O6, [molar mass = 180.] is dissolved 10.0 grams of water What is the molality of the glucose solution? Calculate the boiling(BP) and freezing points(FP) of this solution to the nearest 0.1 C°. The vapor pressure of pure water at 30º...
*January 15, 2011*

**math**

Sparky weighs 3/4 of her weight, plus 3/4 of a pound. How much does she weigh?
*January 13, 2011*

**9th grade alegbra**

two volumes one is 8 the other 125, the surface are is 4, what is the other surface area
*January 11, 2011*

**Math **

make up alist of data with the following landmarks 15, 5,10,20
*January 10, 2011*

**Chemistry**

When 2.50g of an unknown solute is dissolved in 40.0g of ethanol the solution boils at 79.4C. The normal boiling point of this substance is 78.4C and it has a kb of 1.22C/m. (a) What is the molality of this solution? (b) What is the molecular weight of the solute?
*January 9, 2011*

**Language**

Which would be correct? They or Them and I are buying some groceries. Would it be They?
*January 6, 2011*

**statistics**

what is the sample space for this experiment: select two cards from a deck of 52 cards and observe the color of each card drawn.
*January 2, 2011*

**java**

I hava a Employee class and my main class. But in my netbeans it is saying that cannot find symbol symbol:class Employees location:class Main Why is this?And what should I do? Please send me a detail answer. I will really thankful for all of you.
*December 24, 2010*

**math**

how do i design a portable barrier to stop a vehicle travelling at 60km/h, weighing 1800kg within a distance of 1m? the tires cannot be damaged.
*December 17, 2010*

**college algebra**

Compute x +y, given the linear system with T # 1 and with the ordered pair (x,y) as solution x + 2y=3 Tx + ( T+1)y = T + 2
*December 15, 2010*

**math**

You are forming 3 teams from 25 people. Team A has 8 Team B has 3 Team C has 14 How many ways can team A be selected? How many ways can team B selected from the remaining people? How many ways can team C be selected from the remaining people? How many ways can all teams be ...
*December 14, 2010*

**math**

2 1/4 double
*December 13, 2010*

**College Chemistry**

48.70 mL of an HCl stock solution was transferred into a 500 mL volumetric flask and filled to the mark. 47.67 mL of the diluted solution was titrated with 0.179 M NaOH and found to have the concentration of 0.885 M. What is the concentration of the stock solution?
*December 11, 2010*

**Geometry**

The area of a triangle is 6.75 m squared. If the base of the triangle is 3 m, what is the height of the triangle?
*December 7, 2010*

**french, english**

yah i do. I just dont understand it. can you explain???
*November 28, 2010*

**french, english**

this is a french fable that I translated but I don't really undersand it. It is called the lion and the hunter... A braggart, lover of hunting, Just lost a dog of good breed, He suspected the body of a lion, Saw a shepherd: "Teach me, please, My thief, he said, the ...
*November 28, 2010*

**Physics**

A 0.2 kg object that stretches a spring 6.5 cm from its natural length when hanging at rest oscillates with an amplitude of 1.5 cm. The acceleration of gravity is 9.81 m/s2. Find the total energy of the system.
*November 21, 2010*

**U.S. History**

Describe the policies of our government regarding immigration during the first 100 years of U.S. history.
*November 19, 2010*

**Math**

Tina had no money until she received her pay from her boss. Afterward, she spent 7.50 dollars on food every day from Monday through friday. She spent 30 dollars on clothes and 25 dollars to repair her bike. If she had 40.50 left over what would be a expression to find the ...
*November 15, 2010*

**Math**

Andy and Cathy run for class president. There were 598 votes but 36 of the votes were with drawn. How would I write an equation that could be use to find n the number of votes that represent a tie?
*November 15, 2010*

**Science**

Does blood bring cell things like oxygen and digested food?
*November 15, 2010*

**Science**

Does blood bring cell things like oxygen and digested food?
*November 15, 2010*

**Science**

Does blood bring cell things like oxygen and digested food?
*November 15, 2010*

**Science**

Does blood bring cell things like oxygen and digested food?
*November 15, 2010*

**AP Chemistry**

You did not completely vaporize the liquid when you heated it. Is that incorrectly high, incorrectly low, or unaffected by the following procedural changes?
*November 4, 2010*

**physics**

Suppose I have a circular metal disk spinning at a constant angular velocity. Now imagine near to, but not in contact with the first disk, I have an identical metal disk spinning at the same angular velocity but in the opposite direction (ie. W1 = -w2) and the surfaces are ...
*November 1, 2010*

**eng 155**

i found in this order from top to bottom really, rapidly, slowly, firmly, badly, loudly, shamelessly, wildly, can't. and i think i am missing one, sorry if i am to late
*October 29, 2010*

**physics**

Suppose I have a circular metal disk spinning at a constant angular velocity. Now imagine near to, but not in contact with the first disk, I have an identical metal disk spinning at the same angular velocity but in the opposite direction (ie. W1 = -w2) and the surfaces are ...
*October 29, 2010*

**Physics**

Suppose I have a circular metal disk spinning at a constant angular velocity. Now imagine near to, but not in contact with the first disk, I have an identical metal disk spinning at the same angular velocity but in the opposite direction (ie. W1 = -w2) and the surfaces are ...
*October 29, 2010*

**Biology**

During the cell cycle, when does mitosis occur?
*October 28, 2010*

**physics**

Hurricanes can involve winds in excess of 120 km/h at the outer edge. Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg/m^3) of radius 120 km and height 4.5 km. Make a crude estimate of the ...
*October 25, 2010*

**PHYSICS ---HELP!**

I keep getting 0.68 ?????
*October 25, 2010*

**math**

Obtain the Taylor series in powers of x + 1 for f(x) = x/(2 + x), giving the general term and the interval of convergence.
*October 19, 2010*

**chem**

5. The LC50 for fluorine is 0.29 mg/m3. What is this in ppm at 25 oC and 1 atm pressure? How does this compare to the PEL?
*October 17, 2010*

**math**

try... value = low + ((high - low)(x%))
*October 13, 2010*

**math**

high=10 low=5 value=8 what is the formula to identify where 'value' is relative to the high and low (range)
*October 13, 2010*

**chem**

What is the structure of the addition polymer that results from polymerization of 2-chloropropene.
*October 7, 2010*

**statistics**

12 light bulbs are tested to see if they last as long as claimed. 3 of them fail. 2 light bulbs are selected at random without replacement. find the probablility that at least one of the 2 selected failed the test.
*October 7, 2010*

**chem**

Recycling of PET soft drink bottles involves heating with methanol and an acid catalyst to liberate ethylene glycol and dimethylterphthalate (methyl ester of pthalic acid). These can then be used as monomers to make new PET products. Write an equation for this recycling reaction.
*October 5, 2010*

**college physics**

Let the radius of the circular segment be 108 m, the mass of the car 1861 kg, and the coefficient of the static friction between the road and the tire 0.9. The banking angle is not given. Find the magnitude of the normal force N which the road exerts on the car at the opti-mal...
*October 5, 2010*

**chem**

Recycling of PET soft drink bottles involves heating with methanol and an acid catalyst to liberate ethylene glycol and dimethylterphthalate (methyl ester of pthalic acid). These can then be used as monomers to make new PET products. Write an equation for this recycling ...
*October 5, 2010*

**business**

Which pair of accounts follows the rules of debit and credit, in relation to increases and decreases, in the same manner? A. Accounts Payable and Rent Expense B.Repair Expense and Notes Payable C.Prepaid Insurance and Advertising Expense D.Service Revenues and Equipment
*September 28, 2010*

**business**

thank you
*September 28, 2010*

**business**

Which measure would a long-term creditor be least interested in reviewing? a.free cash flow b.debt to total assets ratio c.current ratio d.solvency measure
*September 28, 2010*

**business**

So its $5.00 dollars, thanks Ms. Sue
*September 28, 2010*

**business**

Please please I need help with this question. thanks For 2010, Fielder Corporation reported net income of $30,000; net sales $400,000; and average share outstanding 6,000. There were no preferred stock dividends. What was the 2010 earnings per share? a.$4.66 b.$0.20 c.$66.67 d...
*September 28, 2010*

**business**

thanks
*September 27, 2010*

**business**

Distinguish between static budgets and flexible budgets. When are each an appropriate means of evaluating a manager’s performance and why?
*September 27, 2010*

**Calculus**

ﬁnd the ﬁrst three non-zero terms of the Maclaurin expansion of y = f (x) where the function is deﬁned implicitly by x^2 + xy + y^2 = 1. Also estimate the error approximating f(0.1) using the ﬁrst two non–zero terms of this series.
*September 24, 2010*

**Physics**

A model rocket is launched upward with an initial speed of 50 m/s. It accelerates with a net constant upward acceleration of 2.0 m/s^2 until its engines stop at an altitude of 150 m. (a) What is the maximum height reached by the rocket? (b) how long after the life-off does the...
*September 24, 2010*

**%**

How do I find a dollar number plus 7.1% that will come close to $70.00 Here is what Im doing..I rent out packages that are $70.00 and I want to pay 7.1% sales tax out of that $70.00..What dollar amount do I use to add 7.1% to, to make it as close to $70.00 as I can…whats ...
*September 22, 2010*

**physics**

A 1.20 block is attached to a spring with spring constant 14.0 . While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 . What is the amplitude of the subsequent oscillations?
*September 21, 2010*

**physics**

A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 1.80 s after she enters the water, what average force did the water exert on her?
*September 21, 2010*

**To Brittany and Ryan**

BUUUUUUURN!!!!
*September 21, 2010*

**physics**

A motorboat whose speed in still water is 3.00 m/s must aim upstream at an angle of 27.0^\circ (with respect to a line perpendicular to the shore) in order to travel directly across the stream. What is the speed of the current?
*September 21, 2010*

**physics**

A diver running 1.8m/s dives out horizontally from the edge of a vertical cliff and 3.0s later reaches the water below. How high was the cliff, and how far from its base did the diver hit the water?
*September 21, 2010*

**calculus**

The height (in feet) of a skydiver at time t (in seconds) after opening his parachute is given by h(t) = 4000 – 19t. Find the skydiver's velocity after the parachute opens. The answer should be in feet per seconds. I would appreciate if somebody helps.... Thank you.
*September 21, 2010*

**6 grade**

I love basketball more than you.
*September 20, 2010*

**Algebra**

How many milimiters of pure acid must be added to 150 milimiters of a 30% solution of acid to obtain a 40% solution? I know that the answer is 25 milileters. Could someone show me with steps how to get the answer.
*September 19, 2010*

**Algebra**

If a computer costs an electronics dealer $300, and she sells them for $800, what is her rate of profit based on the selling price? I know the answer is 62.5% but could someone show me how to get this answer , thanks
*September 19, 2010*

**Biology**

Why are the intestinal lenghts of algae-eating tadpoles and insect-eating adult frogs so different?
*September 17, 2010*

**business**

Please I need help with this question.. What are some controls that companies use to protect their assets?
*September 16, 2010*

**chem**

what is(2.25x10*3)(4.80x10*4)=
*September 14, 2010*

**calculus**

f (4 + h) - f (4) = 4h^2 + 4h (a) What is f '(4)? (b) What is the slope of the secant line through (4, f (4)) and (7, f (7))?
*September 14, 2010*

**Finance**

Royal Cup’s last dividend was $ 1.00 per share and dividends are expected to grow at a rate of 6%. What is the current value of a share of this stock to an investor who requires a 10 percent rate of return?
*September 11, 2010*

**Finance**

Caledonia last paid a dividend of $1 per share 2010. In 2007, the Caledonia paid a dividend of $0.84. This dividend growth rate is expected to be constant for the foreseeable future if the merger is not completed. If the merger is successful, the expected dividend for next ...
*September 11, 2010*

**12th grade - Math**

Justify your answer: 1.) Which line is steeper? y= 4/3x - 5 or y= 6/5x - 1 2.) Does the slope of line AB exist? A (-2,7) B (-2,-1)
*September 9, 2010*

**Finance**

Determine the value of a $500 Canadian Pacific Limited perpetual 8 percent debenture if the required rate of return is 14%
*September 2, 2010*

**college**

lead has density of 11.35g/ml,i have 3.45 cc of lead what is the weight in grams.
*August 31, 2010*

**chm**

The mass of Oceanis 1.8*10 to 21 kg.The ocean contains 1.076%sodium ion,Na+what is mass of sodium in ocean
*August 31, 2010*

**jewelry markings**

I have a ring that appears to be gold plate over silver with the markings COP copyright 89 5. Can you tell me what this means ?
*August 21, 2010*

**Math Probability**

An insurance sales representative selects 3 policies to review. The group of policies she can select from contains 8 life policies, 5 automobile policies, and 2 homeowner policies. Find the probability of selecting” (a) All life policies (b) Both homeowner policies (c) ...
*August 16, 2010*

**childcare**

nope one is C
*August 8, 2010*

**english**

need some oratorical piece please
*July 28, 2010*

**Physics**

Rotational Inertia- Particle 1: m=50g x=2 cm y=2 cm P 2: m=25 x=0 y=4 P 3: m=25 x=-3 y=-3 P 4: m=30 x=-e y=4 The question says to find the rotational inertia of the collection about the x, y, and 7 axis in g/cm^2, then suppose the x axis rotational inertia is A and the y axis ...
*July 27, 2010*

**Physics**

Okay. So first for part b I know the formula I'm going to need is v=wr. That will relate the linear speed to the angular speed and we are given the radius. I'm still a little stuck though on the angular speed. I found the circumference of the wheel to be 10pi cm, and ...
*July 27, 2010*

**Physics**

n early method of measuring the speed of light makes use of a rotating slotted wheel. A beam of light passes through one of the slots at the outside edge of the wheel, travels to a distant mirror, and returns to the wheel just in time to pass through the next slot in the wheel...
*July 27, 2010*

**chemistry**

A voltaic cell is contructed in which a copper wire is placed in a 1.0 M Cu(NO3)2 solution and a strip of gold i placed in a 1.0 M AuNO3 solution. The measured potential of the cell is found to be 1.36V and the copper electrode is negative. The Ered for the Cu2+/Cu half- cell ...
*July 17, 2010*

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