Wednesday

May 27, 2015

May 27, 2015

Total # Posts: 1,131

**biology**

give vaccinations to 50 of the 100 rats and then expose all 100 to the disease
*July 31, 2011*

**Environmental problems**

How did pre-modern Europeans understand and deal with what we would today call environmental problems?
*July 31, 2011*

**physics**

6.17m/s
*July 8, 2011*

**accounting**

What are some key elements of activity-based costing? I already know what activity-based costing is, I just do not understand what the key elements are.
*July 6, 2011*

**gov**

For the first eleven years of its existence, the United States was a _____.
*June 29, 2011*

**chem 150**

calculate the molarity of 700grams of NaOH in 2 liters of solution
*June 22, 2011*

**accounting**

Selling price of a bond: Problem type 1 On December 31, 2008, $140,000 of 9% bonds were issued. The market interest rate at the time issuance was 11%. The bonds pay on June 30 and December 31 and mature in 10 years. Compute the selling price of a single $1,000 bond on December...
*June 13, 2011*

**accounting**

How do I figure FUTA/SUTA earnings? This is what my book gives: James Company has three employees .Its payroll information is given below. Employee Earnings Prior October to October Earnings Donald Robinson: $6050 $1200 OASDI Earnings FUTA/SUTA Earnings $1200 $950 Tax Rate ...
*June 10, 2011*

**Com **

Oh ok. I was wondering if anyone liked it. Thanks
*June 8, 2011*

**Com **

Does anyone on here use Writepoint to check your work??
*June 8, 2011*

**grammar**

Is this sentence proper? They had swum across the lake several times.
*June 6, 2011*

**Health**

Wait im only doing just cocaine not no other cocaine so what info do need?
*June 5, 2011*

**Health**

Wait why do i need the number 4 one if im only doing cocaine? and no im not summarizing them why?
*June 5, 2011*

**Health**

Do I need the # 4 one?
*June 5, 2011*

**Health**

THats the answer?
*June 5, 2011*

**Health**

HELP needed i need to have this done
*June 5, 2011*

**Health**

Ms. Sue, I rele did just read the whole thing and i read it twice actually, but i don't know wht the answer really is.. 'Can u please tell me?
*June 5, 2011*

**Health**

HELP!!!
*June 5, 2011*

**Health**

How is Cocaine manufactured illegally?
*June 5, 2011*

**health?**

Ohh thanks a whole lot.
*June 5, 2011*

**health?**

I need stories about individuals that have abused Cocaine I neep help finding stories pleasse help me
*June 5, 2011*

**algebra 1**

srry tyler my mistake the correct answer is 2.3.
*June 5, 2011*

**algebra 1**

= -16.67 and the 6 needs a repeating bar over top of it.
*June 5, 2011*

**health?**

ok.
*June 5, 2011*

**health?**

SO those r the only countries?
*June 5, 2011*

**health?**

Is Cocaine grown is Bolivia, Peru, and Columbia?
*June 5, 2011*

**health?**

What places (countries) is Cocaine grown (made)?
*June 5, 2011*

**HEALTH**

help needed!
*June 5, 2011*

**Physics**

if sound takes 4 seconds in air the hear the sound how far is it? if the temperature of water is 25 degrees C and air temperature is 23 degrees C
*June 5, 2011*

**English **

One last time~ Make sure that the first sentence of every paragraph is indented. The rating of the movie should be listed instead of stating it was the most popular movie because it would need more documentation proving that statement. There are a few punctuation errors in the...
*June 1, 2011*

**English **

I am having trouble coming up with 25 more words
*June 1, 2011*

**English **

How does this look~ Make sure that the first sentence of every paragraph is indented. The rating of the movie should be listed instead of stating it was the most popular movie because it would need more documentation proving that statement. There are a few punctuation errors ...
*June 1, 2011*

**English **

The most common error I have been making lately is to indent the first line of each paragraph. This was completed in the writing of the student. In the writing I would like the rating of the movie while playing in theaters instead on saying it was the most popular. There are a...
*June 1, 2011*

**English **

The Dark Knight was the most popular film of 2008(this should have a rating instead of saying it was the most popular). Unlike most popular summer movies it was also considered to be a quality film and was thought to be a contender to earn an academy award nomination. ...
*June 1, 2011*

**English **

How is the best way to write the explaination on the changes that you would make to revise the paper. I know what needs to be corrected, but I am not sure how to word it in a paragraph. The Dark Knight was the most popular film of 2008. Unlike most popular summer movies it was...
*June 1, 2011*

**physics**

A softball of mass 0.220 kg that is moving with a speed of 4.0 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 1.8 m/s. a) Calculate the velocity of the ...
*May 31, 2011*

**algebra**

t=15w
*May 30, 2011*

**physics**

A softball of mass 0.220 kg that is moving with a speed of 4.0 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 1.8 m/s. a) Calculate the velocity of the ...
*May 30, 2011*

**us history**

what is the difference between sharecropping and tenant farming
*May 29, 2011*

**accounting**

They do not cover this question, they explain what the assumptions are, what they do, and how they work. They do not explain how the choice cost flow assumption might affect the company's cost of goods sold and ending inventory balance.
*May 26, 2011*

**accounting**

I already know what the different inventory cost flow assumptions are, but what I do not know is how might the choice of cost flow assumption affect the company's cost of goods sold and ending inventory balance? Can somebody please explan this to me?
*May 26, 2011*

**Physics**

Hi, I got the answer to part A but not B or C... A) use F=(nV)/(2L) F=frequency n=number of nodes V=speed of sound (usually 343 m/s) L=length of tube rearrange the equation to solve for n, round down to the nearest integer... in my notes it says the (2L) should actually be (4L...
*May 25, 2011*

**science**

a 10000 kg truck moving at 10 m/s collides with a 2000 kg car moving at 30 m/s in the opposite direction. If they stick together after impact how fast, and in what direction, will they be moving?
*May 19, 2011*

**chemistry**

How would I idenify alcohol from other functional groups?
*May 17, 2011*

**trig**

Find the exact values of the other trig functions of theta given sec theta=7 and sin theta is less than 0.
*May 8, 2011*

**Math**

1 dime
*May 5, 2011*

**physics**

A wagon is being pulled with the handle of wagon that makes a 29 degree angle with the ground. A force of 33 Newtons is extended along the handle. What are the horizontal and vertical components?
*May 4, 2011*

**geometry**

find the area of an equilateral triangle with sides measuring 6 meters.
*May 3, 2011*

**Chemistry**

What mass of NaCl can be dissolved in 7.50 X 10 (to the 2nd)grams of water at 25 degrees C?
*May 3, 2011*

**Math**

A ramp rises 5 feet and is 13 feet long. What horizontal distance h, in feet, does the ramp cover?
*May 2, 2011*

**finance**

consider a 6x12 fra where the underlying six-month period is 183 days and the notional is $100. The fra fixed rate is 5%. At maturity of the contract the underlying libor for six months is 7%. What is the settlement amount of the FRA? Assume the actual/360 convention
*April 27, 2011*

**Discrete Math**

A box contains 55 balls numbered from 1 to 55. If 8 balls are drawn with replacement, what is the probability that at least two of them have the same number?
*April 27, 2011*

**science**

blank nerves carry informatation from the 5 senses to the brain. this allows us to see, smell, hear, taste and touch. whats the blank?
*April 24, 2011*

**chemistry**

What is the molarity of KOH in a solution that has pH of 10.0?
*April 21, 2011*

**chemistry**

What is the pH of 6.6 X 10^4 M HCL?
*April 21, 2011*

**math**

Simply the expression 3(2+3) squared/ 7-2 - 10 squared/5
*April 19, 2011*

**math**

Which type of graph would be most appropriate to show the students in the debate club, the computer club and the ecology club and the students who are in more than one of these clubs? A bar graph, line graph, Bennett diagram, or a circle graph? Is it a circle graph?
*April 18, 2011*

**finance**

Kohers Inc is considering a leasing arrangement to finance some manufacturing tools that it needs for the next 3 years. The tools will be obsolete and worthless after 3 years. The firm will depreciate the cost of the tools on a straight-line basis over their 3 year life. It ...
*April 13, 2011*

**math**

A 2-pint bottle of soy sauce costs $1.79. If the unit price remains the same, how much wi 2 gallons of soy sauce cost?
*April 12, 2011*

**Finance**

Kohers Inc is considering a leasing arrangement to finance some manufacturing tools that it needs for the next 3 years. The tools will be obsolete and worthless after 3 years. The firm will depreciate the cost of the tools on a straight-line basis over their 3 year life. It ...
*April 12, 2011*

**Finance**

Sutton Corporation, which has a zero tax rate due to tax loss carry-forwards, is considering a 5 year, $6,000,000 bank loan to finance service equipment. The loan has an interest rate of 10% and would be amortized over 5 years, with 5 end-of-year payments. Sutton can also ...
*April 12, 2011*

**Finance**

Union America Corporation (UAC) is planning to bid on a project to supply 150,000 cartons of machine screws per year for 5 years to the US NAvy. In order to produce the machine screws UAC would have to buy some new equipment. The new equipment would cost $780,000 to purchase ...
*April 12, 2011*

**Finance**

Thomson Media is considering some new equipment whose data are shown below. The equipment has a 3 year tax life and would be fully depreciated by the straight line method over 3 years but it would have a positve pre-tax salvage value at the end of year 3, when the project ...
*April 12, 2011*

**Finance**

Thomson Media is considering some new equipment whose data are shown below. The equipment has a 3 year tax life and would be fully depreciated by the straight line method over 3 years but it would have a positve pre-tax salvage value at the end of year 3, when the project ...
*April 12, 2011*

**sciences**

If a baseball is thrown 30 m/s backwards from a truck moving 50 m/s, how fast will the ball strike the glove of a ground-based catcher?
*April 10, 2011*

**spanish**

Rewrite each statement two ways using object pronouns. Tengo que leer los libros en una semana.
*April 6, 2011*

**Math**

(4.3 x 10^3)(2 x 10^-8)
*April 4, 2011*

**calculus**

In a certain region, the number of bushels of corn per acre, B, is given by the function B(n)=-0.1n^2 + 10n, where n represents the number of seeds, in thousands, planted per acre. If corn sells for $3/bushel and cost $2 for 1000 seeds, find the optimal number of seeds to be ...
*April 4, 2011*

**statistics**

a simple random sample of size n=5 is obtained from the population of drivers living in New York City, and the breaking reaction time of each driver is measured. The results are to be used for constructing a 95% confidence interval. What is the number of degrees of freedom ...
*March 30, 2011*

**physics**

A 27-kg boy stands 4 m from the center of a frictionless playground merry-go-round, which has a moment of inertia of 238 kg m2. The boy begins to run in a circular path with a speed of 0.6 m/s relative to the ground. (a) Calculate the angular velocity of the merry-go-round. (b...
*March 26, 2011*

**Physics**

Find the net force of gravity on the moon (Mm = 7.35 x 10^22 kg) from the earth and the sun (Ms = 1.99 x 10^30). Assume that the two forces are perpendicular to each other. Give the angle in relationship to the sun.
*March 24, 2011*

**Science**

a scooter goes from a velocity of 6.9 m/s to a velocity of 4.8 m/s in a time of 5.1 seconds. what is the acceleration of the scooter
*March 15, 2011*

**Chemistry**

How many moles of chloroform, CHCl^3, are required to fill a 253-ml flask at 100.0 degrees Celsuis and 940 torr?
*March 14, 2011*

**Chemistry**

A sample of air has a volume of 140.0 mL at 67 degrees Celsius. At what temperature would its volume be 50.0 mL at constant pressure?
*March 6, 2011*

**calculus **

That's what I have done, I have expanded it to get the derivative, but I am having problems solving for t.
*March 5, 2011*

**calculus **

If the fish population, p, in a lake can be modelled by the function p(t)=15(t^2+30)(t+8), where t is the time, in years , from now. How do I determine the rate of change when the population when there are 5000 fish in the lake?
*March 5, 2011*

**college physics**

If a rope with linear mass density .167kg/m and is 4m long, what are the lowest four frequencies of standing waves possible on such a rope? What is the fundamental frequency?
*March 3, 2011*

**Physics**

A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle = 20°. For a speed of 29 m/s, at what value of the distance d should a driver locate his car if he ...
*March 2, 2011*

**Physics**

A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle = 20°. For a speed of 29 m/s, at what value of the distance d should a driver locate his car if he ...
*March 2, 2011*

**Physics**

A satellite has a mass of 6000 kg and is in a circular orbit 4.20 105 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20 106 m. What is the true weight of the satellite when it is at rest on the planet's surface?
*March 2, 2011*

**Physics**

A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 2.60 104 s. What is the speed at which the satellite travels?
*March 2, 2011*

**chemestry**

an aqueous solution was prepared by dissolving 1438.0g of a nonelectrolyte in 469.0g of water at 25*c. the Vapor pressure of the resulting solution was found to be 20.5 torr. what is the molar mass of the unknown compound? the vapor pressure of the water at 25*c is 23.76torr.
*March 2, 2011*

**Chemistry (Stoichiometry)**

Magnesium powder reacts with steam to form magnesium hydroxide and hydrogen gas. a) Write a balanced chemical equation for this reaction. b) What is the percentage yield if 10.1g Mg reacts with an excess of water and 21.0g Mg(OH)2 is recovered? c) If 24g Mg is used and the ...
*March 2, 2011*

**algebra**

a 9 foot board is cut in two pieces . one is 3.5 feet longer than the other . how long is the longer piece
*March 1, 2011*

**physics**

Wnc=change in energy=ef-eo =.5mvf^2 - mgh Should get -32540.68 J
*February 28, 2011*

**math**

Create your own word problem that uses a system of equations to solve. Your problem must include the following words: beach,hammock,dance,and troll.
*February 24, 2011*

**math**

s=5k+5z
*February 16, 2011*

**math**

A 75ft diagnol brace on a bridge connects a support of the center of the bridge The horizontal distance that it spans is 15ft longer than the hieght that reaches on the side of the bridge.Find the horizontal and vertical distance spanned by this brace
*February 13, 2011*

**math**

Andrew factored the expression 54x^3-30x^2+15x as 5x(9x^2-6x+3) but when Melissa applied the distributive law and multiplied out 5x(9x^2-6x+3). she got 45x^3-30x^2+15x. thus andrew's solution does not appear to check. why is this? eplain your reasoning and correctly factor...
*February 11, 2011*

**Physics**

A guitar string, destined to be an upper E string, has length 100 cm and mass 0.400 g. a. What is its mass per unit length? u = m/L = 0.004 g/cm b. What length of this string should be used on a guitar if the fundamental frequency is to be 330 Hz and its tension is to be 100 N...
*February 10, 2011*

**math**

The are of a rectangular athletic field is represented by the expression 12y^3+48y^2+24y square meters.write an algebriac expression to represent one possible set of dimensions (in the same sense''length times width'')of the althetic field. include the correct ...
*February 10, 2011*

**Physics**

A fountain contains a 3 m tall cylinder with holes placed at a height of 1 m and 2m. The water level is kept constant at a height of 3 m by an input pipe. As water shoots out from the tube, it strikes the fountain pool at some distance x away from the cylinder. Find x for each...
*February 9, 2011*

**Chemistry **

Given the following equation: 2KClO3---> 2KCl+3O2 How many moles of O2 can be produced by letting 12.00 moles of KClO3 react?
*February 8, 2011*

**Chemistry**

for each of the following balanced chemical equations write all possible mole ratios. Mg+ 2HF---> MgF^2+ H^2
*February 7, 2011*

**Chemistry 2**

Styrene, C8H8, is one of the substances used in the production of synthetic rubber. When styrene burns in oxygen to form carbon dioxide and liquid water under standard-state conditions at 25°C, 42.62 kJ are released per gram of styrene. Find the standard enthalpy of ...
*February 6, 2011*

**algebra**

(y^4+3y-5)/(y^2+7) find the quotient
*February 6, 2011*

**physics**

CALCULATE THE ACCELERATION FOR A 10.0 KG BLOCK WHICH IS BEING PULLED UP A 35.0 DEGREE SLOPE BY A FORCE OF 140 N IF THE COEFFICIENT OF SLIDING FRICTION IS 0.100
*February 6, 2011*

**physics**

CALCULATE THE ACCELERATION FOR A 10.0 KG BLOCK WHICH IS BEING PULLED UP A 35.0 DEGREE SLOPE BY A FORCE OF 140 N IF THE COEFFICIENT OF SLIDING FRICTION IS 0.100
*February 6, 2011*

**math**

how do I solve (4x^2-9y^2)/2x+3y)
*February 3, 2011*

**math**

how do I solve (4x^2-9y^2)/2x+3y)
*February 3, 2011*