# Posts by Jamie

Total # Posts: 1,022

**Physics**

Use the definition of scalar product( vector A* vector B = abcos theda and the fact that vector A * vector B = axbx+ ayby+azbz to calculate the angle between the two vectorgiven by vector A= 3i + 3j + 3k and vector B= 2i + 1j + 3k. The book said the answer is 22 degreess but I...

*October 6, 2006*

**physics**

Vector A has the magnitude of 12 m and is angled 60 degrees counterclockwise from the positive direction of the x axis of an xy plane. Also vector b = 12i + 8j on that same corrdinate system. We now rotate the system counterclockwise about the orgin by 20 degrees to form a new...

*October 6, 2006*

**Physics**

Vector a has a magnitude of 5 m and is directed esast. Vector b has a magnitude of 4 m and is directed 35 degrees west of north. What are the (a) magnitude and (b) the direction of vector a + vector b? What are the (c)magnitude and (e)direction of vector b - vecotr a? (f) Draw...

*October 4, 2006*

**Physics**

The two vectors a and b have equal magnitudes(on an x-y plane vector a is 30 degrees from the x axis then vector b is 75 degrees from the head of vector a it is heading towards north west) of 10m A)find the x component of their vector sum r B)find the y component of their ...

*October 2, 2006*

**Identifying controls and Variables**

control-group b imdependant-group a

*October 1, 2006*

**thank you live experts**

hey jiskha live experts i just wanted to thank you for all the help. you guys are the best! by the way, I will try to learn more English, thanks! Many thanks. Thanks for posting.

*September 17, 2006*

**Chemistry**

The population of San Francisco is 750,000 in an area of 49 square miles. What is the population density in San Francisco? Express your answer in people per acre. ( 1mi(squared) = 640 acres ) 49 sq mi x (640 acres/1 sq mi) =?? acres. (Note that sq mi cancels leaving acres.) ...

*September 13, 2006*

**Algebra**

How do you get the vertex of this absolute value? y = -2 |4x - 1| + 16 By vertex you mean the highest point. Find out where the expression inside the absolute value is 0. Since the absolute value is always positive, in this expression some quantity is being subtracted from 16...

*September 10, 2006*

**algebra 1**

if you go from one point to the other do you subract the a and b or do you do all points in between to find the elevation? I'm not sure what this question refers to. Are you trying to calculate slopes?

*September 5, 2006*

**English/European history**

In Machiavelli's, The Prince, what does Machiavelli consider the ideal economy? The ideal economy, according to Machiavelli, is one in which there is little or no taxation. Thus the public is free to prosper as much as he or she desires, without any concern that the ...

*September 3, 2006*

**History**

How is Southern, Middle, and New England colonies devided? Where is an area known as "tidewater" VA? Since this is not my area of expertise, I searched Google under the key words "Southern middle New England colonies" to get these possible sources: http://...

*August 30, 2006*

**English**

what could be some reasons to why abstract language is used? One reason is that the concept that is being dealt with is abstract. They cannot be sensed directly as can apples, grasshoppers and bricks. Concepts like freedom, evil, beauty, truth and love are abstract. I hope ...

*August 28, 2006*

**Math**

how do you solve for y in the expression: x^3=y(y+3)? x^3=y^2 + 3y y^2+3y- x^3=0 Using the quadratic formula.. y= (-3+-sqrt(9+4x^3) )/2

*August 24, 2006*

**English**

the question asks me to describe the writer's style (serious, sarcastic, etc.) what could be some other answers to this question? Style has to do with HOW writers use words and sentences, as well a how they construct sentences, paragraphs, etc. Style can be formal, ...

*August 23, 2006*

**Algebra**

Solve for s: h=(square root of 3)times s/2 and solve for h V= (pi)r squared h / 3 Solve for s: h=(square root of 3)times s/2 Multiply both sides by 2. 2h = (sqrt 3)*s*2/2 which cancels the 2 on the right. 2h = (sqrt 3)*s Now divide the right side by everything except what you...

*August 17, 2006*

**Algebra**

Could someone please help me find x in this problem and explain how you got the answer? 2(3x - 1) = 5 - (x + 3) I checked the answer I got in the back of my algebra book and it said the answer was 4/7 but my answer was wrong. How did they get 4/7 out of this? 2(3x - 1) = 5 - (...

*August 12, 2006*

**orientalism of muslim and arab american**

LOL... Same school. Same question. Same problem. Different year ;-)

*August 6, 2006*

**orientalism of muslim and arab american**

LOL... Same school, same question, same issue!!! Different year ;-)

*August 6, 2006*

**Ethnics**

Not my email.. my user name.. tried to do my email, to be found easier, but the site prevents it.. Anyways.. Good luck everyone!! YEA UOP!!!!

*July 20, 2006*

**Ethnics**

LMAO! Soo Hilarious! Another Ethnics Student from AXIA!! YAY!! Thanks for all the help, I read the dang chapter and had like 100 words already on how one could measure prejudice but I was trying to find out more of an correct answer through the chapter. LMAO! Anyways, feel ...

*July 20, 2006*

**ICT**

I need to write an essay to explain 'why companies use logos'. Help me. Companies' logos help sell their products. Long before they can read, small children recognize the McDonald's big M and know that it means hamburgers and treats. Think about other logos you...

*June 12, 2006*

**ICT**

help i need to write an essay explaining 'why companies use logos'. yours sincerely, Jamie

*January 2, 2006*