Thursday

February 23, 2017
Total # Posts: 826

**thermal energy/science**

fluids transfer heat by convection

*February 16, 2010*

**thermal energy/science**

on a cold day ,closing the windows keep the room warmer . why i need scientific and i don't know any

*February 16, 2010*

**Math**

sometimes

*February 16, 2010*

**1st grade**

i need more information im thinking shelter

*February 16, 2010*

**ancient world history**

thank you

*February 16, 2010*

**ancient world history**

what are gargoyles and grotesques?

*February 16, 2010*

**science**

we would not have all the resources that we would need today for every day life effecencies such as natural gas and oil

*February 16, 2010*

**math**

what does this sign(^)mean?

*February 16, 2010*

**geometry**

you can use a 360 degree protractor.or you can use a regular protracto and do a couple more steps in math

*February 16, 2010*

**math**

thank you i get it now your awesome

*February 16, 2010*

**math**

damon i need to now where you got 1/3 from

*February 16, 2010*

**math**

thank you!

*February 16, 2010*

**math**

A box has a volume of 48 cubic cm. A similiar box has volume of 6 cubic cm. what is the scale factor between each box?

*February 16, 2010*

**Math/Algebra**

a=b*h/2 a=30*20/2 a=60/2 a=30sq ft 30*3=90 the glass will cost?

*February 16, 2010*

**calculus**

Use the Table of Integrals to evaluate the integral (x sine(6x^2)cos(7x^2)dx)

*February 14, 2010*

**math**

kdjsalkdas

*February 1, 2010*

**college algebrall**

f(x)=4x^2-8x+=8x-8

*January 10, 2010*

**college algebrall**

f(x)=3x^2-18x+6=6x-18

*January 10, 2010*

**social studies**

i don't know

*December 13, 2009*

**probability**

hi! how would you figure out a problem where you are given a probability of success for 12 people and you are trying to find the probability of success for 1 person?

*December 8, 2009*

**criminal justice**

why is it important information for the correctional staff to know if the subject have any marks?

*December 6, 2009*

**Algebra**

Why does this happen? A=3 and b=2 A+b=c is the equation. Multiplying both sides of the equation makes the equation a^2+2ab+b^2 which is equal to a^2+ab-ac=-ab-b^2+bc Dividing by (a+b-c) we find a=-b or 3=-2 Why?

*December 3, 2009*

**Probability again**

A bag contains 5 yellow balls, 5 orange balls, 6 white balls and 6 red balls. Five balls are drawn and NOT replaced each time

*November 29, 2009*

**algebra**

thanks!

*November 17, 2009*

**algebra**

how would i figure out a problem like: a^2 + b^2 = 5^2 is there a certain method to figure this out?

*November 17, 2009*

**Math**

I dot'n know

*November 16, 2009*

**chemistry**

The Measured voltage of the cell Pt H2 (1.0atm) H+ // Ag+ (1.0M) Ag ia 1.02 V at 25degrees. Gven E cell is 0.80V, calculate the pH of the solution.

*November 2, 2009*

**economics**

(A) “Market demand for wheat is relatively stable over time but market supply of wheat is very much influenced by the weather. For example, a natural drought decreases the supply of wheat and pushes up its prices while a bumper crop can severely depress wheat prices. Acts...

*October 31, 2009*

**Physics - HELP**

15.12

*October 27, 2009*

**Physics**

A 15-kilogram block is sliding on a dry, level surface with a coefficient of dry sliding friction of 0.3. The initial speed of the block is 10/m/sec. How far does the block slide before it stops?

*October 15, 2009*

**chemistry**

apply write an expression for the quantity 506,000 cm in which it is clear that all the zeros are significant.

*October 4, 2009*

**math**

How did you come up with this answer?

*October 3, 2009*

**social studies**

a person who is running away is a

*September 30, 2009*

**science**

I've thought of that but I'm not sure if I was right. Thank you so much!

*September 23, 2009*

**science**

What changes in diet would allow a growing human population to be supported without any further increase in farmland? Explain your answer. help me please :(

*September 23, 2009*

**science**

DDT is stored in body fat and remains toxic for many years. Explain why these characterestics are undersirable in a pesticide. What characteristics would you want in a pesticide to make it less harmful to non-pest organisms?

*September 23, 2009*

**app. math**

Given the following data set, which measure of central tendency is the greatest ? {2,4,6,8,10,12}

*September 21, 2009*

**Physics**

A helicopter is ascending vertically at the rate of 19.6 m/s. When it is at the height of 156.8 m above the ground a stone is dropped. how long does the stone take to reach the ground?

*September 8, 2009*

**9th grade SCIENCE**

what is the three maining of science

*August 25, 2009*

**physics**

"A rod with length L , mass m and resistance R slides without friction down parallel conducting rail of negligible resistance . the rails are connected together at bottom, forming a conducting loop with the rod the plain of the loop makes angle Z wih horizontal , a ...

*July 3, 2009*

**12th grade math**

Below is a set of at least two related math/science "words" with their letters combined and arranged in alphabetical order. When you successfully unscramble the letters into the component words, there will be can additional word that should be in the set. That ...

*April 10, 2009*

**11th grade math**

Below is a set of at least two related math/science "words" with their letters combined and arranged in alphabetical order. When you successfully unscramble the letters into the component words, there will be can additional word that should be in the set. That ...

*April 10, 2009*

**math**

Below is a set of at least two related math/science "words" with their letters combined and arranged in alphabetical order. When you successfully unscramble the letters into the component words, there will be can additional word that should be in the set. That ...

*April 10, 2009*

**Physics**

what

*March 26, 2009*

**Chemistry**

How many moles of HNO3 are required to make 250mL of a 2.4M solution? How many grams of KOH are required to make 125mL of a .50M solution?

*March 4, 2009*

**Chemistry**

What is the molarity of a solution with 3.5mol of CaCl2 in 1.89L of solution What is the molarity of a solution with 16g of CH3OH in 487mL of solution

*March 4, 2009*

**manegerial econimics**

1 JQ sells ties and currently has sales of 1,200 units a month, producing a revenue of £36,000. It competes with KR, who is now considering a price cut of 25%. The PED for JQ is –1.5 and the CED between the two products is 0.8. a) Calculate the effect of KR’s ...

*March 1, 2009*

**managerial economics**

1. JQ sells ties and currently has sales of 1,200 units a month, producing a revenue of £36,000. It competes with KR, who is now considering a price cut of 25%. The PED for JQ is –1.5 and the CED between the two products is 0.8. a) Calculate the effect of KR’s ...

*March 1, 2009*

**social studies**

what details show that athens developed a system of democracy

*February 5, 2009*

**12th grade bio**

The transition of the lips where the outer skinner and inner mucous membrane meet is called the _________ I looked it up and from what I read I believe it is the gingivae. Would that be correct. Thank you

*February 5, 2009*

**college Anatomy & Physiology**

The transition of the lips where the outer skinner and inner mucous membrane meet is called the _________ I looked it up and from what I read I believe it is the gingivae. Would that be correct. Thank you

*February 4, 2009*

**Math**

A new car depreciates an average of 22% in its first year of use. If the car was worth $16,000 when it was new, what will the car be worth after 1 year?

*January 23, 2009*

**collage algebra 1**

what is pi

*January 5, 2009*

**9th grade geography**

waht is the economy i nt the far northern region of russia based on

*December 8, 2008*

**physics work sheet**

Bitvh

*December 7, 2008*

**high school**

If F(n) = F(n-1) + (n-1) F(5) = 11 What is F(1)?

*November 15, 2008*

**calculus**

Find the area of the largest rectangle with one corner at the origin, the opposite corner in the first quadrant on the graph of the line f(x)=20-5x , and sides parallel to the axes.

*November 3, 2008*

**Math**

The question is: The freezing point of helium is -272 degrees celsius. The original temperature of a sample of helium is 3 degrees celsius. a.How much must the temperature change to ensure that helium freezes? -AND- b.Assume the temperature changed at a stedy rate for 25 ...

*September 22, 2008*

**science please help me**

in classification system what does BASIS mean????????

*September 21, 2008*

**us history**

thanks so much for your help.

*September 18, 2008*

**us history**

What big idea of American government does The House of Burgesses Fall under? Delf Government, Limited government, representative government or common law.

*September 18, 2008*

**us history**

How did the House of Burgesses Influence the Founding fathers of the United States when they greated our government?

*September 18, 2008*

**6th grade**

What about place value in decimal fractions? What's your question?

*September 16, 2008*

**words**

unscramble cehlmnnouy eefilnpptt eehkossuy ceghlmosty cegghimnuw

*September 11, 2008*

**English**

I have to learn drafting

*September 9, 2008*

**3rd grade**

Asia

*September 8, 2008*

**Trig**

How do you find an equation of a line perpendicular to y=x at the point (5,5) in standard form?

*September 7, 2008*

**Chemistry**

the number of moles in 6.2g of sodium oxide

*September 6, 2008*

**Ethnic Diversity**

Well, here we go!!Same college, same class. I'm having a real problem with this one. I'm so glad I stumbled across all you guys. Good Luck!!!!This has helped me.

*September 2, 2008*

**math**

Given 3x-2y=6, how do i find the area of triangle OPQ? I know I have to graph the equation first but I don't even know how to find the points?

*August 28, 2008*

**hhs 235**

Bahrain is a small country in Arabian Gulf, with 1,234,596 inhabitants. Bahrainins divided into two groups Sunni approximately 50% and Shia 42% and the rest are residents from many countries. The Shia starts the demonstrations in 14 Feb 2011 after the succes of Tunisia ...

*July 6, 2008*

**com 150**

Identify the topic and three subtopics for your expository essay. · Provide three credible sources from the Internet for your expository essay and cite the sources in APA format. · Address the following question: Which subpoint or subpoints on your mind map do ...

*June 29, 2008*

**Chemistry**

What do Na2(CO3)+ Zn(NO3)2 form?

*May 18, 2008*

**science**

movement of earth around sun and movement of moon around earth

*May 17, 2008*

**Chemistry**

Is it...KNO3+C+S--> N+CO2+KS

*May 15, 2008*

**Chemistry**

How do i do that?

*May 15, 2008*

**Chemistry**

20.When black gunpowder explodes, potassium nitrate, carbon, and sulfur react with each other to form nitrogen, carbon dioxide, and potassium sulfide. If thee original mixture contains 50.0 g of potassium nitrate, what is the total volume of the gases produced in the reaction...

*May 15, 2008*

**algebra**

what do you call it when somebody spends 20 years in the 24th row of a theatre

*April 6, 2008*

**math riddle ALGEBRA WITH PIZZAZZ**

omg i just got 3 points extra credit lol!!!

*April 6, 2008*

**Physics**

A lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray itself is 0.220 kg, and its center of gravity is located at its geometrical center. On the tray is a 1.00 kg plate of food and a 0.230 kg cup of coffee. Obtain the force T exerted by the ...

*April 4, 2008*

**Physics**

A person exerts a horizontal force of F = 179 N in the test apparatus shown in the drawing. (h = 0.35 m.) Find the horizontal force M that his flexor muscle exerts on his forearm. The distance between the fexor muscle and the elbow joinf is .051 m

*April 4, 2008*

**LCD**

I need a reveiw on how to use the LCD least common denominator to add and subtract

*March 23, 2008*

**Ethics**

some exampls of ethics

*March 16, 2008*

**Biology**

What is the effect of substrate concentration on enzyme activity? How does enzyme activity change as substrate concentration decreases? Explain your observations by discussing this reaction on a molecular level.

*February 28, 2008*

**vocabulary**

i want vocabulary

*February 7, 2008*

**algebra**

local computer center charges non members $5 per to use the media center. If pay a membership fee of $25. you pay you S3 per session. Write equation that can help you decide whether a solution. a member Then solve the and interpret the

*January 6, 2008*

**Orbital Dynamics**

The zero-velocity value of the Jacobi integral at the L2 point of the Earth-Moon system is C= -1.59411. Suppose a spacecraft is newar Earth (r2=1/60 in our descriptions). Approximately waht speed must the craft have realtive to the rotating system if it is able to reach the L2...

*December 13, 2007*

**Orbital Dynamics**

The zero-velocity value of the Jacobi integral at the L2 point of the Earth-Moon system is C= -1.59411. Suppose a spacecraft is newar Earth (r2=1/60 in our descriptions). Approximately waht speed must the craft have realtive to the rotating system if it is able to reach the L2...

*December 13, 2007*

**Math (Grade 12 Data Management)**

a coin is tossed 8 times. caluclate the problitlty of tossing 6 heads and 2 tails 7 heads and 1 tails and at least 6 heads

*November 28, 2007*

**Chemistry - DrBob222**

CaCl2 + NaOH ---> Ca(OH)2 ppt

*November 11, 2007*

**unsramble words**

unscramble d c e d w n i

*November 4, 2007*

**Reading**

My Reading teacher gave it to me to learn steps in a Process

*October 24, 2007*

**Reading**

Hi My theacher is telling me to do an egg drop project with 16 plastic straws with tape it's due tommorow an I need to finish very quickly PlEASE HELP ME!

*October 24, 2007*

**math**

Find a formula for the following functions: x -2 -1 0 1 2 3 4 y 0 3 4 3 0 -5 -12 x -4 -3 -2 -1 0 1 2 3 4 y 25 16 9 4 1 0 1 4 9

*October 8, 2007*

**Calculus!**

What is the velocity of an object dropped from a height of 350 m when it hits the ground?

*September 21, 2007*

**French**

What is a good site for learning how to speek french for free?

*September 20, 2007*

**Science**

What are some similaraties between Vertebrates and Invertabrates

*September 20, 2007*

**Science**

What are 5 differences between Vertebrates and Invertabrates

*September 20, 2007*

**Math**

1999 starts on Friday, so the first week ends on Thursday. 7 days in a week x 52 weeks in a year = 364 days + 1 + 365 so the year 2000 starts on a Saturday. 2000 starts on Saturday, so the first week ends on Friday. 7 x 52 = 364 + 2 (for leap year) = 366 so the year 2001 ...

*September 15, 2007*