Sunday

May 29, 2016
Total # Posts: 131

**physics**

A 1100 kg car rolling on a horizontal surface has speed v = 70 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring?
*January 11, 2010*

**4th grade, social studies**

Project Invention. My assignment is to do an invention of a current invention and up date it or invent a new one and draw pictures also, I need tell what the invention was. tell why i invented it or up dated this one, does it solve the plrblem and make life easier, and how ...
*December 21, 2009*

**physics**

whats re?
*December 18, 2009*

**physics**

What is the distance from the Earth's center to a point outside the Earth where the gravitational acceleration due to the Earth is 1/22 of its value at the Earth's surface? _ m
*December 18, 2009*

**physics**

the .1 and .2 or like blanks where the number should be
*December 18, 2009*

**physics**

A bucket of mass 1.60 kg is whirled in a vertical circle of radius 1.30 m. At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N. (a) Find the speed of the bucket. Enter a number.1 m/s (b) How fast must the bucket move at the top of the ...
*December 18, 2009*

**Math Quotations place value **

Math - 612.512 what does the 5 stand for in this number? show it 2 ways?
*September 10, 2009*

**social studies**

How does technogly affect the way Americans live and work?
*May 20, 2009*

**5th grade**

The Texas state dish is chili. Alexi made 6 quarts of chili and served it at a party. He had 1/3 of the chili leftover. How many quarts did he have left? I can't figure this out! Please help, my math worksheet is talking about equivalent fractions!
*February 12, 2009*

**math**

how do you factor 2x^4-14x^2+24 ?
*January 22, 2009*

**Criminal procedures**

Do you think the Bill of Rights should apply to all state and local governments? If not all ten which ones
*December 8, 2008*

**reading articles in english**

I want to ask one more thing. when I read a text which includes lots of unknown words, fistly I look their meaning one by one. but this method takes long times.what do you think about my method?? thanks a lot for your advice and help:)
*November 7, 2008*

**reading articles in english**

could you give me some advice how to read academic articles in english?? english is my second language and also I have to read sociological and philosophical texts in english for my master thesis. do you have any idea??
*November 7, 2008*

**Calculus**

solution for part B for the normal line equation firstly you have to find again slope. product of tangentline's slope and normal line's slope must be -1. there fore line's slope.(-4/3)=-1 line's slope= 3/4 then the line equation is y-3= =(3/4)(x-4) we get y= 3x...
*November 7, 2008*

**Calculus**

I solved the question in A but please check.. first of all you have to find y while x=4 and as you find y^2=25-16=9 and y=3 then you have to find slope. It's derivative of y function so (slope)m=1/2(1/25-x^2)(2x). if we write 3 instead of x we will get m(slope) as -4/3. ...
*November 7, 2008*

**Calculus**

2x+2y.y'-4+7y'=0 y'(2y+7)=(4-2x) y'=(4-2x)/(2y+7) as you found:)
*November 7, 2008*

**exam questions**

I've already seen some of these sites but not all. thanks for your advice.
*November 6, 2008*

**exam questions**

As you said they have their own archives which are not open to share. so I'm writing here and looking for help. how did you become as examiner? Could explain for me??
*November 6, 2008*

**exam questions**

Yes you're right but here in a third world country it's not easy. despite all I have to do. thanks for your advice.
*November 6, 2008*

**exam questions**

unfortunately I'm the instructor. this is my first year at IB programme. maybe I could ask other teachers. thanks..
*November 6, 2008*

**exam questions**

yes I have looked that site but as you say they are selling these questions. I'm looking for free one.. do you have any other idea? thanks again:)
*November 6, 2008*

**exam questions**

sorry.. I'm looking for IB(SL)mathematics exam questions. passed or sample? I need sample math IB questions. thanks for your attention..
*November 6, 2008*

**exam questions**

hi I'm looking for the past exam questions. Could you help me? Where I can find? thanks.
*November 6, 2008*

**4th grade**

what are the four basic climates and an example of each
*October 20, 2008*

**algebra**

can someone help me with this? radical 7v-4=radical 5v+10
*April 29, 2008*

**physics--HELP**

Use a(t)=-32 ft/s squared as the acceleration due to gravity. A ball is thrown vertically upward from the ground with an initial velocity of 56 feet per second. For how many seconds will the ball be going upward?
*October 9, 2007*

**math**

a(x+c)= b(x-c)
*September 16, 2007*

**English**

Why did the newspaper Publick Occurrences Both Foreign and Domestick start in the first half of the 18th century? thank you so much! :)
*August 30, 2007*

**social studies**

What is the latitude and longitude of Greenwich, England?
*August 23, 2007*

**english**

which one of the sentences uses but as a preposition? A I wanted to leave,but I was embaressed to do so. B The lake is pretty, but it's too cold for swimming. Neither of those sentences uses "but" as a preposition. In both it is used as a conjunction. "But&...
*September 28, 2006*

**math**

please help me i need help before tomorrow please help i need help on my homework Post a question and someone will try to help. Be specific about what you don't understand. i need help on greatest common factor What unit would you use if talking about area It would be ...
*September 5, 2006*