Tuesday

September 23, 2014

September 23, 2014

Total # Posts: 418

**Math**

7a-8 =15a + 8 add 8 to both sides 7a = 15a + 16 subtract 15a from both sides -8a = 16 divide by -8 a= -2
*October 18, 2007*

**Physics**

Could someone help me on how to put this all together. Atomic physicists ignore the effect of gravity within an atom. To see why, calculate and compare the gravitational and electrical forces between an electron and a proton separated by 10-10m. Im confused ok i have that the ...
*October 18, 2007*

**Physics**

what? i know the masses yes not sure about the charge. . . but the fromula i have is f=k g1f2/r^2 so And all these numbers are something to the power of something else how do i work that out?
*October 18, 2007*

**Physics**

Im confused ok i have that the mass of a proton is 1.6726231 x 10^-27 and the mas of an electron is 9.1093897 x 10^-31 charge of an electron is 1.602 x 10^-19 what do i do with all of this, is g1 the charge of the proton g2 the charge of the electron? what is d is that 10 m?
*October 18, 2007*

**Physics**

Someone please help me, I am having the worst time understanding this problem. Where do I begin? Atomic physicists ignore the effect of gravity within an atom. To see why, calculate and compare the gravitational and electrical forces between an electron and a proton separated ...
*October 18, 2007*

**Biology**

What are needed for humans to be able to digest?
*September 20, 2007*

**Chemistry**

Suppose you are studying coordination compounds of Co(II) with the ligand pyridine (py, C5H5N, MW = 79.10). You isolate a crystalline compound and since the only available ions are chloride and nitrate, you hypothesize the empirical formula of the coordinaton compound must be ...
*April 23, 2007*

**looking up a state**

I would like to look at bugs in Iowa and see the type of houses they live in also I would like to see how they live in that type of weather there. http://www.extension.iastate.edu/Publications/IAN606.pdf http://www.etenson.iastate.edu/publications/IAN606.pdf
*March 29, 2007*

**english**

There is a poem called 'Still I Rise' by Maya Angelou.
*March 18, 2007*

**SCIENCE - Pls HELP**

A proton (with a mass, mp = 1.673 x 10^-27 kg & electrical charge, e = 1.602 x 10^-19) and an electron (with a mass, me = 9.109 x 10^-31 kg & electric charge -e = -1.602 x 10^-19) are not moving & at a distance of 1.000 x 10^-10 m apart.... (assuming the electrical constant, ...
*February 7, 2007*

**chemistry**

ACCORDING TO THE OCTET RULE, CALCIUM HAS THE TENDENCY TO DO A. LOSE ONE ELECTRON B. LOSE TWO ELECTRONS C. GAIN ONE ELECTRON D. GAIN TWO ELECTRONS
*January 20, 2007*

**Math**

Using the intersection method, I need to solve the following equation: 5x-3.3=x-2.1 Can you point me on the right path? you have to get x's on one side, and the numbers on the other. then solve for x. Kira, Thank so much for your help, but how do you graph the equation to ...
*December 20, 2006*

**algebra**

(2x+1)-(X-1)= to get rid of the second set of parentheses, you have to mulptiply by -1...so the x becomes -x and the -1 becomes 1. So, its 2x + 1 - x +1 = x + 2
*November 19, 2006*

**Music**

Why is sonata-allegro form considered to be dramamtic and rewarding?
*October 16, 2006*

**algerbra 1**

what is the answer to 5x-16=14-5x Just giving you the answer is not what this forum is about. We'd be defeating the purpose of you assignment by doing that. Try to work the variables to one side, say the lefthand side, and the numbers to the other side. Add 5x to both ...
*September 27, 2006*

**Math [Probability]**

78125 bricks
*September 10, 2006*

**saxon 65**

how many minutes is one third of an hour An hour is 60 minutes. What is one third of 60 minutes? I hope this helps. Thanks for asking. 20
*August 28, 2006*

**Metric System**

I have two queations that have to do with the metric system: 1- What connections can you identify between the metric units for length and volume? 2- Why is it difficult to convert miles to yrads or feet? Thanks in advance for your help! 1- What connections can you identify ...
*August 18, 2005*

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