Friday

July 31, 2015

July 31, 2015

Total # Posts: 897

**Physics**

The coefficient of static friction between the 3.78 kg crate and the 38° incline is 0.306. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline? The acceleration of gravity is 9.8 m/s^2. Answer in ...
*October 3, 2010*

**Physics**

wat is the horizontal force??
*October 3, 2010*

**Physics**

sry but im a blonde so not even half of that just made sense! :(
*October 3, 2010*

**Physics**

A box of books wighing 339 N is shoved across the floor by a force of 506 N exerted downward at an angle of 33° below the horzontal. The acceleration of gravity is 9.81m/s^2. If µk between the box and the floor is 0.59, how long does it take to move the box 5.27 m, ...
*October 3, 2010*

**physics**

Final Velocity= VI + a(t) Distance= 1/2 (VI + VF)(t) you must first convert km/h to m/s and then you should be able to find your answers
*October 3, 2010*

**chemistry**

The mass ratio of Kr to F in a particular compound is 2.206:1. How many grams of fluorine are present if the compound contains 713.3 grams of Kr?
*October 1, 2010*

**chemistry**

The mass ratio of Kr to F in a particular compound is 2.206:1. How many grams of fluorine are present if the compound contains 713.3 grams of Kr?
*October 1, 2010*

**8th grade Math**

Put the following numbers in order from least to greatest. 0.0875, 7/8, 0.875%
*September 27, 2010*

**Chemistry**

410,434,486,657
*September 25, 2010*

**Algebra 1**

could you tell me where I can get the "why do girls like guys who wear shirts with eight buttons?" worksheet to print free online?
*September 21, 2010*

**statistics**

12. Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows. © …………….. (d)…………….. Person Dexterity ...
*September 19, 2010*

**Geometry**

On the line AD,if AC=24 and CD=32,how do you find the length of AD.
*September 17, 2010*

**chemistry**

What is the concentration (in molarity) of acetone in a solution prepared by mixing 11 mL of 4.0 M acetone, 16 mL of 0.02 M Br2, 11 mL of 1.0 M HCl, and 16 mL of water?
*September 16, 2010*

**math**

what is the appropriate graph for time and speed??
*September 9, 2010*

**Geography**

heeey :} do you have homeschool? or the classes in the computer? cause I have my classes by the computer, &this are my answers :D I'm on highland. pleaseeeee help me. :} if you got computer classes. xD
*September 9, 2010*

**math**

Reading readiness of preschoolers from an impoverished neighborhood (n = 20) was measured using a standardized test. Nationally, the mean on this test for preschoolers is 30.9, with s = 2.08. a.Children below the 30th percentile are in need of special assistance prior to ...
*September 3, 2010*

**Medical Terminology**

Why are some medical terminology is more common, while others are not as well known.
*August 30, 2010*

**8th grade Algebra**

Use the Distributive property to rewrite the expression and simplify. 6(y + 13)+ 21y
*August 27, 2010*

**Medical Terminology**

What are two example of how knowing medical terminology will help you provide good patient care?
*August 25, 2010*

**biochemistry**

A weak base has pKb = 9.25.. A. Calculate the % ionization at pH = 8.25 B. Calculate the % ionization at pH = 10.25 C. What is the pH when 50% of the weak base is ionized?. Is calculating ionization for pkb the same as pka? How do I go about doing it?
*August 24, 2010*

**Ap european history**

I will sure try :)
*August 22, 2010*

**Ap european history**

Most of the paper is written down I just didn't know how to organize it.... thank you
*August 22, 2010*

**Ap european history**

Writeacher that website is great! Thanks so much :) do you have any ideas on how to king of organize my paper?
*August 22, 2010*

**Ap european history**

That could work.... Thanks!
*August 22, 2010*

**Ap european history**

I have most of the paper i just need something to catch the readers attention at the begining and i can't think of anything.....
*August 22, 2010*

**Ap european history**

im writing a paper comparing and contrasting the government , art, and religion of ancient Greece, Rome, and the Middle ages and i need a catchy intro.... please help!!(: ( thanks Ms. Sue you really helped :)
*August 22, 2010*

**AP european history **

im writing a paper comparing and contrasting the government , art, and religion of ancient Greece, Rome, and the Middle ages, and i don't know how to make an outline....?
*August 22, 2010*

**statistics**

standard deviation on the 80 students individual average
*August 22, 2010*

**statistics**

2. The director of admissions at a large university advises students that the cost of textbooks will average more than $300 for a typical semester. A random sample of 80 students enrolled in the university shows a sample mean cost of $315.40 and a sample standard deviation of...
*August 22, 2010*

**AP european history**

I'm writing a paper comparing and contrasting the government , art, and religion of ancient Greece, Rome, and the Middle ages and I have no idea how to even get started. Please help!
*August 21, 2010*

**9th grade**

summarize the parts of a controlled expirament.
*August 13, 2010*

**Economics **

Explain how decision making, interaction and the workings of the economy influences the marginal benefits and marginal costs associated with the decision to purchase a house?
*July 8, 2010*

**fisica 10mo**

sobre una rueda de radio r=0.5 m esta enrollada una cuerda que se desenrolla ejerciendo una fuerza de tracciÃ³n contante F 50 nt como muestra la figura 1.1 en 2 seg se han desarrollado 4 m. Se pide calcula: a. La aceleraciÃ³n tangencial de un punto de ...
*July 3, 2010*

**algebra 2b**

Determine in which direction the parabola opens y equals x2-7x plus 18?
*May 24, 2010*

**Math**

x^2y/5n^3/x^3y^5/15n Please help me solve!!!!!!!!!!!!!!!
*May 17, 2010*

**Algebra 1 **

use the distributive property to find 6 times 54?
*May 12, 2010*

**Physics**

When an automobile moves over a wide, closed loop of wire embedded in a road surface, the magnetic field of the Earth within the loop altered? Is a pulse of current produced? Can you cite a practical application for this at a traffic intersection?
*April 30, 2010*

**algebra**

2(x)+1=5 2(x)+1=5 2(x)=5-1 x=5-1/2 x=4/2 x=2
*April 24, 2010*

**reading**

i dont understand this question nad i need an answer : make a list of words that would entice you to purchase a product. need answer:) thanx
*April 22, 2010*

**Pre-Algebra B**

Solve for y. 4-(y + 9)= 10 Please help!!!
*April 21, 2010*

**business**

making a good impression is vital, since we tend to form an opinion in about
*April 20, 2010*

**Algebra**

(5c-9)(5c+1)
*April 18, 2010*

**help with algebra**

(p-7)(p+8)
*April 18, 2010*

**9th grade**

(p^2-7)(p+8)
*April 17, 2010*

**Physics**

a) What is the tangential acceleration of a bug on the rim of a 6in. diameter disk if the disk moves from rest to an angular speed of 79 rev/min in 5 seconds? b) One second after the bug starts from rest, what is its tangential acceleration? What is its centripetal acceleration?
*April 15, 2010*

**Science**

What percentage of the sun is shine on the Earth in Maine during Spring
*April 13, 2010*

**chemistry**

balance this chemical equation: aqueous solutions of alumininum chloride and sodium carbonate are combined, producing alumininum carbonate
*March 29, 2010*

**Chemistry**

Write a balanced chemical equation for nitrogen gas reacts with oxygen gas to produce nitrogen dioxide gas
*March 29, 2010*

**chemistry**

Determine the ammoint of lead precipitate in grams that can be produced from 50 grams of ammonium chloride and excess lead II nitrate
*March 29, 2010*

**Math**

40% equals .4 and 4/10 which can be reduced to 2/5
*March 29, 2010*

**Math**

yes 1/7 is less then 1/6
*March 29, 2010*

**Health**

In the market for health insurance, what kind of asymmetric information causes adverse selection? Explain.
*March 16, 2010*

**Healthcare**

Give three examples in which the health provider has information that is unavailable to the health consumer.
*March 16, 2010*

**Healthcare**

Give three examples of asymmetric information in which the health consumer has information that is unavailable to the health provider.
*March 16, 2010*

**ethics**

Try the adc(.)org website
*March 15, 2010*

**chemistry**

Aqueous solution with a pH of 10.6 is diluted from 1 L to 1.5 L. What is the pH of the diluted solution?
*March 14, 2010*

**chemistry**

what is the pH of .28 M HNO3 (aq) at 25 degree celsius? (Kw = 1.0 x 10 ^-14)
*March 14, 2010*

**7th Grade Math**

Find the area of the circle described. Use pi= 22/7. Diameter= 1.4cm Please help!
*March 13, 2010*

**chemistry 101**

1008 cCal
*March 9, 2010*

**physics**

(4pi*10^-7)(4.8*380/.32) =____mT
*March 9, 2010*

**Math**

Use the rules of exponents to simplify each exponential expression. Your result cannot contain any negative exponents. Thank you for your help. (2m^2)^3 (4x^2y^4z^7)^0
*March 6, 2010*

**ENGLISH**

What do you think of when you hear the term academic honesty? How does knowing the difference among original ideas, common knowledge, and plagiarism help you stay honest when you write an academic paper? What are some of the consequences of not being academically honest?
*March 3, 2010*

**Chemistry**

The vapor pressure of CCl3F at 300 K is 856 torr. If 11.5 g of CCl3F is enclosed in a 1.0 L container, will any liquid be present? If so, what mass of liquid?
*February 19, 2010*

**7th Grade Literacy**

What are 3 IMPORTANT characteristics that a class president needs? Please answer!!
*February 17, 2010*

**geometry**

How do you draw 224 degree angle???
*February 16, 2010*

**Science**

Yes it does.
*February 16, 2010*

**7th grade Literacy**

What are the characteristics that make a good class president? Please answer!!!
*February 15, 2010*

**math**

,duigfwgfhkbviy wegfcbiwefgbvywrywr wegbewyfhyrhyrgfbrurugz uwegbcfbcflyirhlgfb ffhvbfgfgyl gftfdgdgf tedtre dfevsdf dsfgdtef edg vdggdtdsvh ugfgsdtfgewvdh gqwfdvgweyfgwefgdcgwvewveds ewdvgetdtedv fdtvasfdadedftwftwa wtdcs ...
*February 9, 2010*

**Chemistry**

Please help me !! Frequently in the distillation of methanol and water, the methanol distillate appears cloudy. To what might you attribute such an observation? Thanks.
*February 8, 2010*

**Biology**

The mitotic process provides a mechanism by which cells should be able to transfer their genomic contents from cell generation to cell generation without error or change. is this inviolate?
*February 5, 2010*

**Biology**

Where in the cell cycle can one find the phragmoplast? What is it's probable function?
*February 5, 2010*

**Chemistry**

Please help me Sketch a separation scheme showing how you would separate the following two component mixture: m-nitroaniline and hexanol. All the substances are soluble in ether. You can use any of the following solutions in your separation: aqueous hydrochloric acid, aqueous ...
*February 4, 2010*

**Pre-Algebra B**

5 | 4,5,5,6,6,6,7,8,8,9 6 | 0,0,1,1,2,2,2,3,4,4,4,5,6,7 7 | 0,1,1,1 How do you find the mean of this stem-and-leaf plot? Please answer!!
*January 23, 2010*

**Mathematics in Economy**

I'd like to add that the '2' after x and y means 'squared'.
*January 18, 2010*

**Mathematics in Economy**

A firm produces two different kinds A and B of a commodity. The daily cost of producing x units of A and y units of B is C(x,y) = 0.04x2 + 0.01xy + 0.01y2 +4x + 2y +500 Suppose that firm sells all its output at a price per unit of 15 for A and 9 for B. Find the daily ...
*January 18, 2010*

**Geometry**

If each side of a regular pentagon is x^2 + 17 and each side of a regular hexagon is x^2 + 2x, for what value or values of x will the perimeters of the figures be equal?
*January 17, 2010*

**math**

Quadrant 2
*January 17, 2010*

**reading response to the personwho answered this**

thank you!! Ireally apreciate it!!
*January 14, 2010*

**reading**

when a prarie fire approached,farmers set __. What would it be? Please help me!!
*January 14, 2010*

**pre-algebra B**

Milli tosses a coin and a six-sided die.The numbers on the die are 1 through 6. What is the probability that Milli will toss a tail and roll an odd number?
*January 12, 2010*

**english**

Is there an adjective to describe someone who performs critical thinking?
*January 7, 2010*

**math**

evaluate the expression for the given value of the variable p + 13 when p = 8
*January 7, 2010*

**Pre-Algebra B**

The selling price of a bicycle that had sold for $220 last year was increased by 15%. What is the new price? Please answer within 5-10 minutes.
*December 26, 2009*

**math**

a ski slope at a mountain has an angle of elevation of 25.2 degrees. the vertical height of the slope is 1808 feet. how long is the ski slope. show diagram
*December 14, 2009*

**SCIENCE**

HOW COULD MEASURING THE ORBIT OF A COMET HELP SCIENTISTS UNDERSTAND WHEN IT WILL NEXT BE VISIBLE FROM EARTH?
*December 14, 2009*

**math**

When a coin is tossed four times, sixteen equally likely outcomes are possible as shown below: HHHH HHHT HHTH HHTT HTHH HTHT HTTH HTTT THHH THHT THTH THTT TTHH TTHT TTTH TTTT Let X denote the total number of tails obtained in the four tosses. Find the probability distribution ...
*December 5, 2009*

**Math**

Determine whether the situation calls for a discrete or continuous random variable. 8) The cost of a randomly selected orange 9) The pH level in a shampoo 10) The braking time of a car 11) The number of field goals kicked in a football game
*December 5, 2009*

**Physics**

OK i have one attempt left, first i change the gauge pressue to newton/m^2? And since P= F/A solve for A after making f = 1440*g? Theni have to divide it by 4 for every tire? but im having trouble with conversions, and my final answer being in cm^2. SOOO confused
*December 4, 2009*

**Physics**

Hi I tried asking this question yesterday but still had some confusion.Since the area must be in cm^2. IP The weight of your 1440 kg car is supported equally by its four tires, each inflated to a gauge pressure of 30.0 lb/in^2 . What is the area of contact each tire makes with...
*December 4, 2009*

**Physics**

so if the answer wants cm^2 what would be the conversion?
*December 3, 2009*

**Physics**

Hey can someone help, im having trouble converting alot. IP The weight of your 1440 kg car is supported equally by its four tires, each inflated to a gauge pressure of 30.0 lb/in^2. What is the area of contact each tire makes with the road? What gauge pressure is required to ...
*December 3, 2009*

**6th grade**

what are the parts of a plant cell
*December 2, 2009*

**Pre-Algebra B**

Find the area of a circle whose radius is 12.7 cm
*November 30, 2009*

**Computer Science**

What is the halting problem? What does it have to do with self referential paradoxes? How do I make sense of this? "So suppose I have a black box which can decide the halting problem, that is I can give it a program P and the box tells me if P will ever stop. Using this I...
*November 22, 2009*

**Physics**

The applied force is W = Fdcos(theta).
*November 18, 2009*

**physics**

A 10g marble is spun so that it rolls at 150rpm around the inside of a steel tube. The tube has a 12cm diameter. Assume the rolling resistance is small enough for the marble to maintain 150rpm for several seconds. During this time, will the marble spin in a horizontal circle ...
*November 15, 2009*

**physics**

A 30g ball rolls around a 40cm diameter L-shaped track at 60rpm. What is the magnitude of the net force that the track exerts on the ball? rolling friction can be neglected.
*November 15, 2009*

**Pre- Algebra**

-6x-15>57
*November 12, 2009*

**Math (calc)**

yes that's what I thought. Thank you!
*November 7, 2009*

**Math (calc)**

Given the function: f(x)=x^3(x-2)^2 , on the interval [-1,3] find the domain and Asymptotes ...Isn't the domain (-1<x<3) ? and as for the asymptotes I thought you could only find them for rational functions and since that function is not rational I guess there aren&#...
*November 7, 2009*