Friday

May 22, 2015

May 22, 2015

Total # Posts: 500

**8th grade science**

What leaves after a disturbance in the climax community?
*February 18, 2011*

**math**

thanks
*February 16, 2011*

**math**

what is -25+(-16)=? PLEASE HELP
*February 16, 2011*

**science**

Teacher gave us homework that I really dont understand. We must write chemical reactions by which we differentiate alcohols, esters, hydrogenic carbon,carboxylic acid and halogen alkanes from each other. We must not write the same reaction for two different compounds and we ...
*February 16, 2011*

**chemistry**

Teacher gave us homework that I really dont understand. We must write chemical reactions by which we differentiate alcohols, esters, hydrogenic carbon,carboxylic acid and halogen alkanes from each other. We must not write the same reaction for two different compounds and we ...
*February 15, 2011*

**algebra**

How do you multipl (3a-2b)(4a+3b)??
*February 9, 2011*

**Math **

Explain why 1/8 is greater than 1/10, but less than 1/3.
*February 9, 2011*

**Chemistry**

is fumaric acid polar or non-polar?
*January 26, 2011*

**Biology/Zoology**

Do bony fishes have a dermal bone?
*January 25, 2011*

**Science**

For my Biology class, I need to find and print out an article that talks about renewable resource technology or new technology that is beneficial to the environment. Can anyone help me find any good ones?
*January 12, 2011*

**childcare**

what taxes must be paid only by the employer?
*January 6, 2011*

**Chemistry**

given the equation Mg +2HCL --> MgCL2+H2, how many moles of hydrochloric acid are needed to react with O.50 mol of magnesium ? (1)0.5 (2)1.0 (3)2.0 (4)4.0 is it 3 ?
*January 2, 2011*

**chemistry**

A student wants to determine of an irregularly shaped peice of sodium metal . The student is warned not to use water displacement to find the volume of the peice of sodium . Explain the reason for the warning and pffer a effective solution to the students' problems
*December 5, 2010*

**physics**

A 70 kg man jumps 1.00m down onto a concrete walkway. His downward motion stops in .02 seconds. If he forgets to bend his knees, what force is transmitted to his leg bones?
*November 21, 2010*

**algebra**

A 384-m wire is cut into three pieces. The second piece is 3 m longer than the first. The third is four-fifths as long as the first. How long is each piece?
*November 21, 2010*

**Math**

A 384-m wire is cut into three pieces. The second piece is 3 m longer than the first. The third is four-fifths as long as the first. How long is each piece?
*November 21, 2010*

**physics**

a child is sliding on a sled at 1.5m/s to the right. You stop the sled by pushing on it for 0.50 s in a direction opposite to its motion. If the mass of the child and the sled is 35kg. what average force do need to apply to stop the sled. Use the concepts of impulse and motion
*November 18, 2010*

**Statistics**

Quick Normal/InvNormal Calculator In a study of human mortality rate, an Actuary estimated that in US and Canada, about 78% (fictional figures) of life insurance claims resulted from accidental deaths. Suppose a study is being planned to estimate the relative frequency of ...
*November 17, 2010*

**Chemistry**

Reverse the equation to be H2O (g) --> H2O (l) delta H= -44kJ There are 9.0 grams of H2O (g) Find moles of the gas: 9.0/16= .50 moles 44 times .50 =22 kJ evolved
*November 15, 2010*

**6th grade ANSWER**

You have to turn a fraction into a decimal by taking the numerator and divide by the denominator, 5 divided by 8 is 0.625 so that is your answer! :D
*November 8, 2010*

**Pharmacology**

Question # 13 answer is neuroleptic malignant syndrome
*October 28, 2010*

**geometry**

Given the right triangle JKL, whose arean is 32 sqare units, determine if it is an isoceles right triangle.
*October 26, 2010*

**Physics **

The boy on the tower of height h = 10 m throws a ball a distance of x = 68 m, as shown. At what speed, in m/s, is the ball thrown?
*October 24, 2010*

**test**

grammar --verbs ) a helping verb is the verb that help the main verb make its statement(true or false)
*October 21, 2010*

**calculus**

Find the derivative by the limit process. 6/√(8x)
*October 15, 2010*

**business**

Hi all,, so am taking strategic management now and our Dr gave us same case and same questions apparently,, any of you happens to still have or remember the answers? Am totally lost with the "concerned commodity" question
*September 26, 2010*

**world health organisation**

find out about world health organisation
*September 19, 2010*

**math**

what is the time halfway between 10:30 am and 3:00 pm?
*September 16, 2010*

**Music appreciation**

symphonie fantastique, which depicts an artist's execution by guillotine, was written by the nineteenth century composer
*September 15, 2010*

**Math**

Each of the three dimensions of a cube with sides of lenth s centimeters is decreased by a whole numer of centimeters. The new volume is cubic centimeters is given by V(s)=s^3-13s^2+54s-72. a) Find V(10) b) If the new width is s-6 centimeters, then what are the new length and ...
*September 12, 2010*

**Math**

Tropical Pools sells an aboveground model for p dllars each. The monthly revenue for this model is given by the formula R(p)+ -0.08p^2 + 300p. Revenue is the produce of the price p and the demand(quality sold). a0 Factor out the price on the right-hand side of the forula b) ...
*September 12, 2010*

**math**

Hoshi walks 10 meters in 3 seconds what is her walking rate
*September 5, 2010*

**gometry**

[3.05] In, angle C is (7x - 3) degrees and segment AB = (3x + 12)mm. Part a. What value of x would make equilateral? Part b. What is the perimeter or sum of the lengths of the sides of the equilateral triangle? Be sure to include the unit of measure in your solution
*July 1, 2010*

**algebra**

Solve equation L=2.43*.034^.3326
*June 26, 2010*

**general studies**

I'm trying to narrow down/refine thesis statementt about women vs. men, being as ruthless and capable of voiulenbt crime. Any ideas?
*June 14, 2010*

**english**

One of the most popular artists of the 1700s was Rosalba Carriera. She was born in Venice in 1675, and from her childhood she showed artistic talent. When she was 30, in 1705, the Roman Academy honored her as a painter of miniatures. Fifteen years later, in the spring of 1720...
*June 13, 2010*

**world history**

According to Procopius, two sixth century Christian monks undertook an elaborate smuggling operation to provide Byzantium with the knowledge to produce
*June 10, 2010*

**Math**

On a scale drawing,the scale is 1/4 inch:1 foot. Find the dimensions of each room in the scale drawing. How would you find the answer? 10 feet by 9 feeet
*June 9, 2010*

**Physics**

(a) calculate the energy in joules put out by a 9.0 V calculator battery that moves 3.0 C of charge through a handheld calculator after 1 hr of operation. (b) calculate the energy put out by a 12.0 V car battery that moves 1000 C of charge (as it may when starting the car'...
*May 10, 2010*

**Physics**

Calculate how far and apart two indentical charges of 1.0 C must be in order for the Coulomb force between them be less than 500 N
*May 10, 2010*

**Physics**

thx
*May 10, 2010*

**Physics**

How many electrons must be removed from an object to leave it with a charge of 2.0 x 10 exp-10C? This is a small though not neglible static charge.
*May 10, 2010*

**Physics**

for same question above if the charge is increased by a factor of 10 what number am I increasing? and am I increasing it by adding or multiplying?
*May 10, 2010*

**Physics**

calculate the force between two identical charges of 1.0 x 10 exp -9 C separated by 1.0 Cm
*May 10, 2010*

**Physics**

So if one electron is 1.6 x 10 exp -19 C it would be -1.0 x 10exp-9C divided by 1.6 x 10 exp -19 C correct?
*May 10, 2010*

**Physics**

How many excess electrons does an object with a total charge of -1.0 x 10exp-9C have on it? This is approximately the amount of charge involved in commonly encountered static electricity.
*May 10, 2010*

**Us constitution**

what the United States may have looked like had the Anti-Federalists "won" their points in the ratification debate and the writing of the Constitution
*May 4, 2010*

**Physics**

An ice cube having a mass of 50 g and an initial temperature of -20⁰C is place in 400 g of water 30⁰C water. What is the final temperature of the mixture if the effects of the container can be neglected?
*April 19, 2010*

**apchemistry**

If you have CL2 + H2o ---> H+ + Cl- + HOCl and you are given [HOCl] = 0.06 M and you have to find pH.... can you assume that [HOCl] =[H+] = 0.06 M since H+ and HOCl both have a coefficient of 1? Thank you
*April 18, 2010*

**Mathematicas**

Sam and Susie are twins. Sam has as many brothers as he has sisters. Suzie has at least 1 sister, and twice as many brothers as sisters. How many kids are in the family altogether?
*April 18, 2010*

**Mathematicas**

Sam and Susie are twins. Sam has as many brothers as he has sisters. Suzie has at least 1 sister, and twice as many brothers as sisters. How many kids are in the family altogether?
*April 17, 2010*

**4 Grade**

About how many people lying head-to-toe are needed to strech around the earth? Is it closest to : a) 1 million; b) 25 million; c) 100 million? (Hint: The distance around the earth is approximately 25,000 miles).
*April 6, 2010*

**computer programming**

Construct a structure chart, as well as a flowchart and pseudocode, for the following problem. Assume that each input record contains a taxpayerâ€™s name, the value of a personal property belonging to the taxpayer, and a code defining the type of of personal ...
*March 22, 2010*

**Math**

Julio ordered towo pizzas for dinner Friday. Dad ate 3/4 of one pizza, Jenny ate 1/8 of a pizza, Danny ate 1/4 of a pizza, and Mom ate 1/2 of a pizza. What fraction of a pizza was left for a midnight snack? Mr. L answered to my question like this: 6/8 + 1/8 + 2/8 + Mom = ?/8 ...
*March 9, 2010*

**Math**

It will be 13/8 = 1 5/8. Is that right?
*March 9, 2010*

**Math**

Julio ordered towo pizzas for dinner Friday. Dad ate 3/4 of one pizza, Jenny ate 1/8 of a pizza, Danny ate 1/4 of a pizza, and Mom ate 1/2 of a pizza. What fraction of a pizza was left for a midnight snack?
*March 9, 2010*

**math**

how do I graph this? y = -1/3 |x-2| like, I can do the simple ones (ex: y = -|x+3|), where you put random number for x and get the y value and graph it.. but the fraction confused me.. thanks in advance
*March 9, 2010*

**Math**

In the United States, every 57 minutes an underage drinker is involved in a traffic fatality. A recent report urges a crackdown on teen-age drinking and driving. Estimate the number of underage drinkers involved in traffic fatalities each day.
*March 3, 2010*

**Physics**

what am I converting?
*February 8, 2010*

**Physics**

When the brakes of a certain car are applied, a deceleration of 6.0 sec squared is produced. a) How much time will it take to bring the car to a halt from an initial speed of 110km/hr? b) How far will it travel in that time?
*February 8, 2010*

**History**

How did the economical compostion during coperate greed in the 1980s and how it affected the political climate during this time. Is this asking for me to put in how Reagan gave to the rich and not the poor?
*February 2, 2010*

**physics(universal law of gravitation)**

a satellite has a mass of 100 kg and is located at 2 x 10^6 m above the surface if the Earth. wHAT is the potential energy associated with the satellite at this location? What is the magnitude of the gravitational force on the satellite?
*January 14, 2010*

**Math**

log6(x+7)−log6x=2 Solve for x
*January 10, 2010*

**Logs**

log6(x+7)−log6x=2 Solve for x
*January 10, 2010*

**Juvenile Justice**

I need to write a profile on risk indicators for youths that could be invloved in gangs. How can I write this without looking like an actual paper, but more or less like a handout that is going to be given?
*December 15, 2009*

**Math Help**

Prove that the cancellation law of multiplication is equivalent in a commutative ring to the assertion that the product of non-zero factors is not zero
*December 11, 2009*

**U.S. History**

Defend McCarthyism as appropriate for the time in which it occurred.
*December 3, 2009*

**social studies**

what political party did saddam hussein lead in iraq
*November 30, 2009*

**Pre-Algebra**

I am having trouble understanding how to answer this type of question: Find each procuct or quotient: Express using positive exponents: (b to the power of negative 10)(b to the power of 5)
*November 23, 2009*

**science**

My grandson is in 4th grade. His teacher assigned the class to make a container that will keep an ice cube frozen for several hours while inside. Do you have any ideas?
*November 17, 2009*

**physics**

One projectile is launched horizontally while another is dropped from rest at the same time. Which will hit the floor first?
*November 16, 2009*

**social studies**

Rude...^ I I I I
*October 12, 2009*

**Math Analysis (similar to my previous question)**

A + B = < 30,000 A > = B B = < 12,000 B return > A return In order to maximize money we have to invest it. The rate of retern is highest with the B bond so, A + 12,000 = 30,000 B = 12,000 A = 18,000
*October 6, 2009*

**Math Analysis**

1700 > = C (calories) > = 900 0.30(1200) = 360 max calories from fat 372 > 360 too much fat
*October 5, 2009*

**Grade 7 Math**

1 + 99 2 + 98 3 + 97 ............... ............... 49 51 + 50 49(100) + 50
*October 5, 2009*

**math**

max say max is innocent james says max and james is innocent brett says max and james is innocent if max and james are innocent both james and brett would be telling the truth which means two people would be innocent -> max is telling the truth that he is innocent -> ...
*October 5, 2009*

**Math**

bedmas brackets then equations then division then multiplication then addition then subtration
*October 5, 2009*

**Math**

Bedmas brackets equations division multiplication addition subtraction 2 + 1/8 = (16 + 1)/8 = 17/8
*October 5, 2009*

**Chemistry **

how can i know if a solution is aqueous or solid? i have a test tomorrow and dont know how to do this PLEASE HELP!!! i have this question on my homework...Will precipitation occur when the following solutions are mixed? 1. Na2Co3 and AgNO3 2. NaNO3 and NiSO4 3. FeSO4 and Pb(NO3)2
*October 4, 2009*

**Economics**

goods produced by the govt are called public goods. externalities are things which you can not charge for ie a negative externality would be smog a positive externality would be clean air
*October 4, 2009*

**chemistry **

how can i Specify what ions are present in solution upon dissolving each of the following substances in water: ZnCl2, HNO3, (NH4)2SO4,Ca(OH)2
*October 4, 2009*

**Economics**

c x 0.20 = 15,000 c x (1/5) = 15,000 c = 15,000 x 5
*October 4, 2009*

**math prime factorization**

write the prime factorization of 15 using exponents.
*September 28, 2009*

**MATH**

PRIME FACTORIZATION OF 15 USING EXPONENTS
*September 28, 2009*

**actually it is about computers**

I tried to do the same thing and could not, I had to use windows movie maker instead, turned out great!
*September 25, 2009*

**stats**

3. For a particular sample of 50 scores on a psychology exam, the following results were obtained. Mean = 78 Mode = 84 Median = 80 Standard deviation = 11 1. What score was earned by more students than any other score? Why? 2. What is the variance?
*September 17, 2009*

**Science**

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in ...
*August 26, 2009*

**Mathematics**

Umm...what?
*August 14, 2009*

**Mathematics**

Solve the following equation for x, where 0 </ x 2(pi). tan^2x=1
*August 14, 2009*

**Systems (maths)**

Determine the system which is equivalent to the system: 3x+4y=12 x-2y=9 a) 3x+4y=12 3x-6y=27 b) 3x+4y=12 2x-4y=18 c) 10y=-15 5x=30 d) Any of A,B or C
*July 25, 2009*

**antigone**

Is the forth question A or b?
*July 2, 2009*

**English**

Dona Stein's "Putting Mother By" the poem is on Ploughshares, but i can't post the link. I have to write an essay/commentary/analysis on the poem, and i was wondering if someone could check up on my first paragraph. I know it's all one big metaphor, about...
*June 10, 2009*

**Math**

An eagle is hunting a bird in flight. The eagle begins its descent from a height of 74m. The eagle reaches its prey at a height of 3m. This situation can be modelled using the formula: 74=3+6t. t represents the time in seconds, but i'm not sure what 6 represents.
*May 10, 2009*

**Grammar**

At the stroke of midnight, the fireworks _____ into the night sky.
*May 9, 2009*

**Economics**

Explain two possible causes of Recession in an Economy using an AD/AS Diagram.
*April 29, 2009*

**social studies**

Thank you so much!!!!!!!!
*April 13, 2009*

**social studies**

Ms.Sue Sorry i will type you another time i gota go.Thank you so much i know you only answered one question but i have it done.My older brother helped me and,i asked him earlier but he wouldnt help but since he wanted to get on the computer so bad.... laugh out loud!!! but ...
*April 13, 2009*

**social studies**

what do you meen?
*April 13, 2009*

**social studies**

PLEASE HELP!!!!!!!!
*April 13, 2009*

**social studies**

well ms.sue the book does mention calligraphy and landscapes and paintings sorry i may have missed that part
*April 13, 2009*