Wednesday

September 2, 2015
Total # Posts: 523

**Physics**

There is a figure with a +2.0 UC charge on the left and a -2.0 uC charge on the right. P is in the center between the two charges. They are 5.0 cm apart. 1) Find the electric field 5.0 cm to the left of P. 2) Find the electric filed 5.0 cm directly above P. 3) Find the ...
*August 19, 2009*

**Physics**

There is a proton that is at the origin and an ion at x1=6 nm. If the electric field is zero at x2= -3 , what is the charge on the ion? All I ahve for this is 2q/d^3=-e/x1^3 q=9*10^9 d=9 e=1.602*10^-19 x1=6 I get -2.7. They want an integer so i put up -3. What am I doing wrong?
*August 17, 2009*

**Physics**

There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm. Find the elctric force on the proton for Fx and Fy. For my total force I got 7.53*10^-11N For my x direction I got 5.8 *10^-11N, and for my y dirction i got 5.1 *10^-11N. Where did I ...
*August 12, 2009*

**Physics**

There is a 85 uC point charge at the origin. What is the electric field at the point x= -45cm , y= 55cm. I am doing (-.45+.55)/(-.45^2+.55^2)^3/2 Where did I go wrong? I have to find the elctric point for the Ex and Ey.
*August 12, 2009*

**Physics**

A -3.5 uC charge experiences a 13N i hat electric force in a certain electric field.What would the force be for a proton experience in the same field? I amd doing this 13/-3.5=-3.7 then multiplying 1.6*10^19 where did i go wrong
*August 12, 2009*

**Physics**

There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm. Find the elctric force on the proton for Fx and Fy. For my total force I got 7.53*10^-11N For my x direction I got 5.8 *10^-11N, and for my y dirction i got 5.1 *10^-11N. Where did I ...
*August 12, 2009*

**Physics**

There is a figure q1= 23 uC and q2= 16 uC. The force on q1 points in the -x direction. q1 is at (0,1) q2 is at (2,0) q3 is at (2,2) What is the magnitude of the force on q1? I am doing this (9*10^9)(23*16)(-4ihat)7^3 where did i go wrong?
*August 12, 2009*

**Econ**

Suppose a new type of pest, which is immune to existing pesticides, attacks the wheat crop. As a result, at a given quantity of clothing, the economy is able to produce fewer bushels of wheat than before the attack of the new pests. Adjust the PPF curve to show the economy'...
*August 11, 2009*

**Physics**

There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm. Find the elctric force on the proton for Fx and Fy. For my total force I got 7.53*10^-11N For my x direction I got 5.8 *10^-11N, and for my y dirction i got 5.1 *10^-11N. Where did I ...
*August 11, 2009*

**Physics**

The Earth is surrounded by an electric field on its surface that points toward the center of the Earth with an average magnitude of 150 N/C. If there is an electron that is released in vacuum at the Earth’s surface, what will the acceleration due to the Earth’s ...
*August 10, 2009*

**math**

The ratio of staff to patients at Lakeview is 8 to 7. If total staff plus patients is 1575 people, how many staff are at Lakeview? help me get started on how to solve this
*July 20, 2009*

**math**

The ratio of staff to patients at Lakeview is 8 to 7. If total staff plus patients is 1575 people, how many staff are at Lakeview? help me get started on how to solve this
*July 20, 2009*

**English**

Hi, I need a title for my essay it is about woman being unhappy with their marriages. I wanted to call it dissatisfying Marriages. If you have a better title that you can offer, please do.
*July 7, 2009*

**Science**

What electrical appliance uses a 1.5 Volt battery?
*May 8, 2009*

**World War 1**

HOW MANY SHIPYARDS DID WE HAVE DURING WORLD WAR 1?
*May 5, 2009*

**language(involes songs)**

MAYBE A KIND OF FASTISH AND PANICKY SONG BECAUSE THERE IS A FIRE.
*May 5, 2009*

**science**

I think it is rice because popcorn can not fit together without crumpling and rice sticks really well together.
*May 5, 2009*

**4th grade vocab**

The hiking territory was 500 sq. feet.
*May 4, 2009*

**division**

You could ask your teacher and she could probably teach you. or your parents.
*May 4, 2009*

**??????**

its ok!
*May 4, 2009*

**??????**

what site?
*May 4, 2009*

**??????**

to give you a hint of which one it is, the second letter is an o.
*May 4, 2009*

**??????**

Thank you!!!!!
*May 4, 2009*

**??????**

also what were they than?
*May 4, 2009*

**??????**

Dang! But ok.
*May 4, 2009*

**??????**

What was the main trainning center during world war 1
*May 4, 2009*

**4th grade geography**

Ok thanks!
*April 30, 2009*

**4th grade geography**

which website is for The Great Pyramid?
*April 30, 2009*

**4th grade geography**

Thanks for your help everybody!
*April 30, 2009*

**4th grade geography**

what country and year were these manmade stone constructions built? The Great Wall Mount Rushmore Itaipu Dam Stonehenge and The Great Pyramaid
*April 30, 2009*

**College Algebra**

Another one if you can help Solve the formula for the indicated variable. N=a+b Ln (c/d) for c
*April 30, 2009*

**MATH 1111**

i do not know how! But i like your Name!!!!! (same as mine!)
*April 30, 2009*

**MATH 1111**

College Algebra help with logarithms! Ln (x-4) - Ln (x+1) = 16 How do I take natural logs?? it's a study guide question for our final exams
*April 30, 2009*

**math**

range is the numbers that is the first number and the last number so you would say the range is 5 to 10. The mode is the number that appears the most.
*April 30, 2009*

**Science**

Frogs and lizards
*April 29, 2009*

**Science**

I do not think any animals live in blackberry bushes.
*April 29, 2009*

**DRBOB**

ok!
*April 29, 2009*

**DRBOB**

whats your question?
*April 29, 2009*

**Math**

i think it is 25. Both your friend and you are wrong because when you divide 30 by half you get 15.So 15+10=25.
*April 29, 2009*

**Geography**

I have been looking for a while for a good map! So Thank you SSSSOOOOO much!!!!!!!!!!
*April 29, 2009*

**Geography**

Thank you Ms.Sue!
*April 29, 2009*

**Geography**

Where can i go to get a map of the world during the civil war?
*April 29, 2009*

**4th grade**

The first Sammy is not me!
*April 27, 2009*

**4th grade**

those two Sammys are not just me!
*April 27, 2009*

**4th grade**

Sammy is very smart and i agree with Anna too!
*April 27, 2009*

**4th grade**

I think Anna is right too.
*April 27, 2009*

**ALgebra**

what would the x intercepts be for this equation? y=x^2-3x-4 thanks.
*March 6, 2009*

**science**

ok earth science what is a solstice and why do we have them?
*February 10, 2009*

**Chemistry**

FLVS!!!!
*February 1, 2009*

**Maths**

(x+5)(x-1) Expand the brackets
*January 25, 2009*

**GEOGRAPHY**

in what state are the Everglades located? What is the northernmost place on Earth called?
*December 2, 2008*

**geography**

could u help me think of sometihng to say though??
*December 1, 2008*

**geography**

thank you:)
*December 1, 2008*

**geography**

three groups - first nations, metis, and red river settlers around 1870
*December 1, 2008*

**geography**

describe how each of the three groups of people in Rupert's land lived.
*December 1, 2008*

**art**

Can anyone please explain to me what does it mean by "the individual approach of the artist"? THANKS A LOT!!!!!!!!!
*November 25, 2008*

**cal**

Water, at the rate 10 ft^3/min, is pouring into a leaky cistern whose shape is a cone 16' deep and 8' in diameter at the top. At the time the water is 12' deep, the water level is observed to be rising 4''/min. How fast is the water leaking away? Can anyone...
*November 19, 2008*

**biology**

Thank you so much !
*November 16, 2008*

**biology**

Can anyone tell me what a frog intestine nucleus should look like, and what a frog intestine cell membrane should look like? If anyone has a picture to show, that would be really helpful. Thanks in advance!
*November 16, 2008*

**French**

It's my first time using this site, but from what I have heard, it's really good. I had to write a paragraph using l'imparfait, le passe recent, plus que parfait, and the passe compose. Could anyone check my paragraph and tell me what I did wrong? I hope there aren...
*November 10, 2008*

**physics**

bobpursley, what does the mu stand for in your equation?
*October 4, 2008*

**chemistry**

So I should try separating the solids using a magnet, and then use water? If it's not too much to ask, could you write out a simple procedure for me?
*September 21, 2008*

**chemistry**

I need to create an experiment to seperate and identify the components of an unknown heterogeneous mixture and to recover as much of the seperated solid components as possible. The unknown mixtures may contain up to 4 of the following substances, one or none from the following...
*September 21, 2008*

**Math/Chemistry**

A watch loses 0.44 seconds every minute. How many minutes will the watch lose in 1 day?
*September 18, 2008*

**Chemistry- HWK CHECK**

no 5 is c!
*August 4, 2008*

**statistics**

a recent poll of 700 peole who work indoors found that 278 of the smoke. If the researchers want to be 98% confident of thier results to within 3.5% how large a sample is necessary? how do i work this problem?
*June 21, 2008*

**statistics**

a recent poll of 700 peole who work indoors found that 278 of the smoke. If the researchers want to be 98% confident of thier results to within 3.5% how large a sample is necessary? how do i work this problem?
*June 20, 2008*

**math(is this how you work this)**

solve the equation 15-4x=2(3x+1) 15-4x=6x+1 -4x+6x+1-15 2x-14 x=-14/2=-7
*May 22, 2008*

**Calc**

a partial moves along the x-axis so that its velocity at time t, for 0< = t = < 6, is given by a differentiable function v whose graph is shown above. The velocity is 0 at t=0, t=5, and the graph has horizontal tangents at t=4. the areas of the regions bounded by the t-...
*May 19, 2008*

**calculus**

consider the differential equation dy/dx= (y - 1)/ x squared where x not = 0 a) find the particular solution y= f(x) to the differential equation with the initial condition f(2)=0 (b)for the particular solution y = F(x) described in part (a) find lim F(x) X goes to infinity
*May 19, 2008*

**science**

I've got a project due on Monday and i can't find any thing on what I'm supposed to be doing it on. I'm doing it on the chemical mixture of jelly and whenever i type that into Google it just comes up as like petroleum jelly and doesn't give me any answers. ...
*May 17, 2008*

**Health**

What are some international and nation public health services that someone could volunteer at?
*April 8, 2008*

**college algerba**

Solve by the substitution method: 2x - 3y = 7 y = 3x - 7
*March 30, 2008*

**college algerba**

Solve by the substitution method:
*March 30, 2008*

**history**

How did Indian and European-American cultures affect each others?
*February 25, 2008*

**english**

In the short story, "Contents of the Dead Man's Pocket" what is the significance of the title?
*February 23, 2008*

**pets**

i wanna try to get my adorable rare chinese dwarf hamster on a bag of pet food or something. everywhere i try to find out stuff its always wut i dont want. could you plz help me. thx in advance!
*January 31, 2008*

**pets**

thanks this website helped alot!!!!!!!!!! i just got a chinesse dwarf and i never herd of them before .
*January 28, 2008*

**pets**

are chinesse dwarf hamsters rare??????
*January 28, 2008*

**English- Jane Eyre**

We have to complete a study guide for English class but for some reason I can't find any of the answers, can anyone help? Chapter 5: According to the girl Jane meets, why is Lowood called an institution? How has Miss Scatcherd punished the girl Jane has spoken to? Chapter ...
*January 28, 2008*

**studying**

wut should i study for a social studies unit test in the 8th grade????
*January 24, 2008*

**math**

a larger square- put 4 4x4s together rectangle - stack 2 ontop of each other im not sure about another but i have 2
*January 24, 2008*

**music**

how is to triple eight notes played as
*January 24, 2008*

**Algebra**

x=3 y=2 no cause 3x3-2=7 not 6 does this help much???
*January 24, 2008*

**math (extra credit)!**

thx but this didnt help i need to know why n^0= 1
*January 22, 2008*

**math (extra credit)!**

my teacher asked me why a number to the zero power is equal to 1. could you please explain why a number to the zero power equals 1?
*January 22, 2008*

**math (very easy )**

do you know why anything to the zero power is one???? thanks in advance
*January 22, 2008*

**science**

thank you this helped me alot
*January 22, 2008*

**science**

what is the 3 laws of motion? & what is the law of universal gravitation plz answer thx in advance
*January 22, 2008*

**lit**

how is the concept of empathy illustrated and developed in Raymond Carver's "cathedral"
*December 3, 2007*

**History**

What effect did the Mexican-American war have on the issue of slavery in the U.S.? Why did it have this effect? Why would the compromise of 1850 have been controversial in both the north and the south?
*November 5, 2007*

**Algebra II**

HELP! How do I set this problem up? Im confuzzled... Tom mows lawns and whitewashes fences during his summer vacation. He is paid $12 for each lawn mowed and $17 for each fence painted. Last month Tom did 105 jobs and made a total of $1410. How many of each job did he do?
*September 25, 2007*

**Physics**

On its way to Peace River, Alberta, a car enters a passing zone on the highway. The car is 25.0 m behind a truck and both vehicles are travelling at 41.0 m/s. The car accelerates uniformly to overtake the truck and after the car has travelled 280m, it is 25.0 m ahead of the ...
*September 22, 2007*

**Algebra II**

I skipped algebra I so I never learned about matrices. If you had a 2X3 matrix & multiplied it by a 3X2 matrix, what size would the product matrix be? Would it be a 3X3? Is there any way to know? I have a test monday and i want to make sure I know this.
*September 16, 2007*

**calc**

a circle is tangent to the y-axis at y=3 and has one x-intercept at x=1 1. determine the other x-intercept 2. find an equation for the circle so i know two points on the circle are (0,3) and (1,0) and the equation for a circle is (x-a)^2 + (y-b)^2 = r^2 but i don't know ...
*September 1, 2007*

**Chemistry**

Kp=Kc(RT)^delta(N) .25=Kc(.08206*1100)^(2-3) .25=Kc(90.27)^-1 .25=Kc 1.108*10^-2 divide both sides by 1.108*10^-2 22.6=Kc it may be off a bit because i didnt account for significant figures
*July 31, 2007*

**physics**

The human eye is sensitive to electromagenetic waves that have wavelengths in the range from 400nm to 700nm (1nm=10^-9m). What range of the frequencies of electromagentic radiation can the eye detect? Can you please show me the steps and work because i dont understand what i ...
*May 24, 2007*

**science**

what is the relation between a solide and a liquid Well ice can turn into water. Try reading: http://en.wikipedia.org/wiki/State_of_matter http://en.wikipedia.org/wiki/Solids http://en.wikipedia.org/wiki/Liquids
*May 21, 2007*

**Social Studies**

What your opinion on this statement? The only way to have a successful communist government is to have a corrupt leader. well that sorta depends dosent it? in all honesty i would say it appears more often but i wouldnt say 100%. Your statement is no more true for a communist ...
*May 7, 2007*