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November 23, 2014

Posts by Mark


Total # Posts: 1,258

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

english
hi
October 2, 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

chemistry
How do you determine if a salt is behaving as an acid or base?
June 28, 2010

Maths
A square has an area of S^2 and a regular hexagon has a perimeter of T. If p is the perimeter of the square and h is a side of the hexagon, then find h+p in terms of S and T.
June 19, 2010

computer science
Pseudo code: Input a list of employee names and salaries, and determine the mean (average) salary as well as the number of salaries above and below the mean
June 17, 2010

college
is project management designed to transfer power from the line managers to the project manager?
June 13, 2010

Chemistry
what is the precipitate formed when benedicts solution reacts with glucose? give the net ionic equation for the reaction.
June 7, 2010

Calculus
Solve the following initial value problem and determine the interval where the solution exists. dy/dt = 2ty^2 y(0) = y_0 Textbook answer is: When y_0 <> 0, then y = 1/(1/y_0 - t^2). When y_0 = 0, then y = 0 When y_0 > 0, the interval where solution exists is |t| < ...
June 1, 2010

math
18.5
May 26, 2010

algebra
Could someone please just basically describe how to solve rational equations? I dont understand them. :(
May 17, 2010

Chemistry
my ap chem teacher has been absent for the past two weeks and part of the notes her sub gave us to copy says that In the equation HC2H3O2 + H20 <--> C2H3O2(- charge) + H3O(+ charge) HC2H3O2 is an acid H2O is a base C2H3O2(- charge) is the conjugate base and H3O(+ charge...
May 15, 2010

Philosophy
Which of the following ideas is important in virtue ethics? a) community b) duty c) natural human inclinations d) pleasure is it a???
May 13, 2010

English
In Homer Odyssey - According to Odysseus what is the cause of the doom he and his men face on the Island of Cicones?
May 12, 2010

Economics
I'm supposed to use a price index for GDP chart to find the GPD deflator of 1983 how do i do that? To get the chart google nipa bea chart,click the first choice, and select tale 1.1.4
May 9, 2010

Schindler's List Essay
You also only make mention of the SS, whereas Schindler had to deal with many other people from the German army, like the Gestapo, Members of the Secondary command, and general German army soldiers (Nazis) all of whom are depicted in the film. Also you haven;t made any mention...
May 8, 2010

Schindler's List Essay
I would probably give it a 20 out of 50. This essay has a few good ideas, but overall contains much spelling and grammatical errors, and is overall poorly structured. By this I mean there are no links or comparisons between ideas, instead they are just tossed in randomly over ...
May 8, 2010

pheonix university
Please select one of the following thesis statements: 1. America's top corporations are successful for a variety of reasons. 2. Scientists have discovered human remains thought to be more than 2 million years older than Lucy, a skeleton found in Ethiopia. 3. A healthful ...
May 4, 2010

Math
600,000 - x / 600,000 = .10 solve for x.
May 1, 2010

ecology
Air pollution impacts us on a global level. What are the implications of global warming?
April 28, 2010

ecology
Give examples of how humans have increased their food supply and what effects these methods have on the environment overall.
April 28, 2010

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