Monday
July 28, 2014

Posts by tom


Total # Posts: 1,050

English
* in 2012 How do you read 2012 here?

English
* Sat, June 3, 2012 How do you read 2012 in the expression above?

English
1. Ask your friends for help, and they will help you. 2. Ask for your friends' help, and they will help you. 3. If you ask for your friends, they will help you. (Are they all grammatical and the same?)

math
thanks Ms. Sue, Ashley???

math
For the first day of school, our math teacher wanted us to write ten things to say instead of saying "shut up", I've only got a couple so far, any ideas?

chem
is it saturated

chem
it looks like it is above

chem
If 20 g KCL is dissolved in 100g of water at 20 degrees C, is the solution unsaturated, saturated, or supersaturated?

chemistry help asap
A solution of salt in water conducts electricity, but a solution of sugar does not. Explain why?

chemistry help
What ratio does molarity express?

Chemistry
Hello, i am still needing help

Chemistry
Those aren't mole, those are concentraiton

Chemistry
If 25.0mL of sodium nitrate solution (0.100mol/L) is added to 10.0mL of sodium carbonate solution (0.150 mol/L), what is the concentration of sodium ions in the resulting mixture? Assume the volumes are additive.

pre-calculus
standard form is y=mx+b where m is slope, x is x value in (x,y) and b is the y intercept. Find slope by using y2-y1/x2-x1

chemistry
Why don’t dipole-dipole forces have much affect on a gas?

chemistry
entropy increase as temperature increases why

chemistry help
What mass of Kbr is present in 25 mL of a 0.85 M solution of potassium chloride?

pre calc
what is the domain and range of f(x) x^3?

chemistry
Calculating Parts per million Helium gas, 3.0 x 10^-4 is dissolved in 200.0 g of water. Express this concentrartion in parts per million.

3rd grader needs help with grammar
Is it..... my Classmates and me or my classmates and I

model un
what do ecuador plan to do to get rid of infectious disease.

model un help
can it be found in a more easy way

model un help
what has beem done in Ecuador on infectious disease and why

model un need help asap
unusually people that have the diseases

model un need help asap
well can you give me some key ideas to point out

model un need help asap
thats my work

model un need help asap
does this first part work The republic of Ecuador, which has a population of 10 million, is one of the smallest of the Andean countries in South America. It covers only an area of 110,000 square miles. It has an extraordinary diversity of infectious diseases. Many of the peopl...

model un need help asap
How should I start a great position paper on Ecuador and its infectioud Disease?

chemistry
Contrast ionic and molecular substance in terms of the type of attractive forces that govern their behavior.

chemistry need help
ok i understand but i have another question

chemistry need help
The London dispersion force is the weakest intermolecular force. The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an ind...

chemistry need help
A fellow student say , " All substance experience London disperison forces of attraction between particle." Is this etatement true? Explain your answer

CHemistry
Research the role of chemistry within a specific industry. Identify chemical processes upon which the industry relies. Explore environmental impacts of the industry that are related either to the chemicals it uses or produces. Procedure Choose one of the industries listed belo...

Business Statistics
.22

grammar
Hello, I need a grammatical correction in the following excerpt from my essay, "We can see the benefits of having a husband for a woman in the following excerpt..." My teacher circled the phrase "having a husband for a woman" (which means that there is some...

Math
A coustomer wants to make a teepee in his back yead for his kids. He plans on using PVC plumbing pipe for the supports on the teepee, and he wants the teepee to be 12 feet across and 8 feet tall. Howlong should the PVC plumbing pipe be?

Math pizzazz worksheet answers
What's the answer to "what did the mama cow say to the baby cow"?

english
i thank you for the help, but other question how do i being it i'm not that that good in this.

english
Create a 3-5 page Request for Proposal (RFP) for bringing in outside trainers to train staff on the use of Microsoft Office® programs. # General overview of the RFP # The business requirements for the project, including the specific items (products and services) on which t...

math
thank you

is the answer
is the answer a+b that is what i got

math
a^2-b^2/a-b reduce to lowest terms

Algebra
(2y+1)/(y^2-y-6) ruling out value for y. which numbers can not be used in place of (y).

Math
Let f(x) = (lne^2x)/(x-1) for x>1. If g(x) is the inverse of f(x0, then g'(3) = ? A. 2 B. 1 C. o D. -1 or E. -2 if you can show/explain how to get that please, thanks

psychology
what is an example of the relationship between sensory adaption and negative adaption?

Chemistry 9
what were the firstsubstnces to be discovered

Sociology
I have already answered these questions but I am a little uneasy of the answers. Could someone please read them and provide feedback and if possible a little more detail for explainations? Q: What is the meaning of stratified? A: To classify or separate (people) into groups Q:...

science
how do you balance a chemical equation

Ordinary people
I also don't get this, but wondering if this is right... What is Conrad perception of Karen and her state of mind? Is the answer for that this: Conrad talks to himself, saying "Okay Karen we'll see you around who needs you anyway who the !@#$%^& needs anybody?

Ordinary people
Chapter 7, Why does Karen say they should be careful about who they see? It is because Karen likes Conrad? OR that she's telling Conrad to control his life and live his life??

WHAT DOES THIS QUOTE MEAN??
WORK PAYS LATER. LAZY PAYS NOW.

math
Solve the following equation -5x + 1 > 11 Please include work

english - writing
I'm looking for a succinct way to help one of my sales guys write better. His syntax and use of verbs and adjectives is often weak. Here is a typical short example. What comments or observations would you make to help me help him? "Sure I have no problem to presenting...

cjs 210
CheckPoint: Police Stress Write a 350- to 700-word response describing each of the four categories of stress associated with the policing profession. Within each response, describe how this type of stress affects the officer’s job, social life, and personal life. How can ...

CHEMISTRY
Materials -sandwich-sized plastic ziplock bag -graduated cylinder -paper cup -rubber band -measuring spoons -vinegar -baking soda -twist-tie (like the closure for a loaf of bread) Part 1: The Reaction 1.Use the paper cup during this part of the experiment. 2.Measure out 25.0 m...

Chemistry
Physical properties are those that you can detect with your senses: sight, hearing, touch, taste, smell. With just a glass of water, you can explore physical properties of water. Activity: Investigating Water glass of drinking water,paper cup,pen,freezer,cooking pot,stove ther...

Trigonometry
Use the power-reducing formulas to rewrite the expression in terms of the first power of the cosine. [#1.] (sin^4x)(cos^4x) [#2.] (sin^4x)(cos^2x)

chemistry
Materials -sandwich-sized plastic ziplock bag -graduated cylinder -paper cup -rubber band -measuring spoons -vinegar -baking soda -twist-tie (like the closure for a loaf of bread) Part 1: The Reaction 1.Use the paper cup during this part of the experiment. 2.Measure out 25.0 m...

Chemistry
Physical properties are those that you can detect with your senses: sight, hearing, touch, taste, smell. With just a glass of water, you can explore physical properties of water. Activity: Investigating Water glass of drinking water,paper cup,pen,freezer,cooking pot,stove ther...

MATH
what multiplication fact can be found by using the arrays for 2x9 and 5x9?

history
What were Thomas Jefferson's most notable accomplishments during his time as president? Thanks for the help!

Algebra Dr Bob222
So if I understanding this for example I have x^2-6 I can factor because the negative sign I can get a middle term which would be (x+2)(x-3) expand it to (x^2 +2x-3x-6) (x^(2)-x-6) With x^2+6 I could not get a middle term because the sign is positive which shows me that becaus...

Algebra
I have a question I hope someone can explain it to me. We are working on Demonstrate that f actoring a polynomial. I was ask Why can you factor x² - 4 but you cannot factor x² + 4? How can you tell quickly which ones you can factor and which you cannot? I am not sure...

physics
so t clarify W can be found through alpha times time? also, what does I stand for?

physics
A horizontal 791 N merry-go-round is a solid disk of radius 1.48 m, started from rest by a constant horizontal force of 50.0 N applied tangentially to the edge of the disk. Find the kinetic energy of the disk after 3.01 s. I am having trouble on which formula to exactly use fo...

Algebra
Equation: RCF=NCF/(1+Pi)^t Can somebody show me how to rearrange the equation to solve for Pi.

physics
A war-wolf or trebuchet is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling large vegetables and pianos as a sport. A simple trebuchet is shown in the figure. Model it as a stiff rod of negligible mass, 3.05 m long, joining particl...

Logic
I know this is alot of text, but i'm having trouble understanding what my professor is asking... Study questions and Homework: St. Thomas Aquinas' arguments for the existence of God. Reading and Homework due: November 6, 2008. Work through the following, to see if you ...

physics
An ice tray contains 490 g of liquid water at 0°C. Calculate the change in entropy of the water as it freezes slowly and completely at 0°C. i tired doing -(.49kg)(2.26x106)/273.15K) but im not getting the right answr help pls!

math
im not getting the proper answer from this question: 5.0=k=c1/c2= 1.00g-x/15ml all over x/50 ml = (1.00-x)50/15x the answer comes out ot .40g

7th grade math
ok so the real eq is 5.0=k=c1/c2= 1.00g-x/15mlall over x/50 ml = (1.00-x)50/15x the answer comes out ot .40g

Science
When was first microscope invented?

physics
im sorry i tried using PV^1.4=22.3l but this was not hte right answer could you explain further the equation for a.

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering th...

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering th...

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering th...

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering th...

Psychology
difference between physiological and psychological needs. I am confussed on this question I have been studing the Maslow's Hierarchy of Needs I am assuming this so If I am getting this wrong please explain to me the difference. The Maslow theory gave 5 needs they are at th...

physics
A glass window pane has an area of 3.50 m2 and a thickness of 0.600 cm. If the temperature difference between its surfaces is 27.0°C, what is the rate of energy transfer by conduction through the window? I tried using the formula P=ka[(th-Tc)/l] my answer was thirteen but ...

Psychology
I am writing a paper and am stuck on one part can some give me an idea what i am needing. paper in which you analyze the function of emotions as motive. Be sure to address the following items on your analysis: This is the part I am stuck on Analyze at lease two research method...

science
definition amorphous solid

physics
One mole of an ideal gas does 3400 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 22.0 L. (a) Determine the initial volume in m^3. i tried using the formula w=integral f/i pdv 3400J= -(1.00atm)(.022m^3Vf-Vi) i eneded with...

physics
One mole of an ideal gas does 3400 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 22.0 L. (a) Determine the initial volume in m^3. i tried using the formula w=integral f/i pdv 3400J= -(1.00atm)(.022m^3Vf-Vi) i eneded with...

physics
A sample of ideal gas is expanded to twice its original volume of 1.00 m3 in a quasi-static process for which P = áV2, with á = 2.50 atm/m6, as shown in the figure. How much work is done by the expanding gas? i tried using the eq: w=-1/3(2.50atm/m^6)(1.013x10^5)[...

physics
Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12.7 g, and an initial mass of 25.5 g. The duration of its burn is 1.90 s. (a) What is the a...

physics
The melting point of helium is -269.65°C, and the boiling point is -268.93°C. I have to convert these to K I get 3.5 and 4.22 When I plug these in it saYs i am within 10% of the answer I don;t no what else to put?

injuries
A fitness professional will most likely refer a student or client to a _______ to treat tight muscles that can pull bones out of alignment

physics
The mass of the Earth is 5.98x10^24 kg, and the mass of the Moon is 7.36x 10^22 kg. The distance of separation, measured between their centers, is 3.84x10^8 m. Locate the center of mass of the Earth-Moon system as measured from the center of the Earth. I tried using the formua...

chem
i am trying to find the minimum volume of hot water needed to dissolve 100 mg of salicylic acid. when i did the calculations i got 100 ml of hot water is this correct??

physics
A 68.0 kg boy and his 45.0 kg sister, both wearing roller blades face each other at rest. The girl pushes the boy hard, sending him backward with a velocity 3.70 m/s toward the west. Ignore friction. How much chemical energy is converted into mechanical energy in the girl'...

Pre Algerbra
I'm confused on this one, If n(A) = 8, then how many proper subsets are there? I came up with 255. Is this correct?

algerbra
If n(A)= 8, then how many proper subsets does A have?

business law
Six months later, the same client comes to see you again. She shows you an advice received recently from the partnership¡¦s investment banker, Selby Bank, which suggests that the partnership should engage in some risky behaviour because it will produce a large pro...

psychology
Can someone please give me an example how sense and perception and behavior are link together I am not sure if I am understanding it to good So If I am wrong please let me know. I believe they are link in how we see things is not always how are mind perceives it so when our br...

chemistry
a test liquid has a density of 1.1g/mL. when you pour some of it into a cup of water, what will happen?

physicis
if the motion of something was 120 m/s2 would it be the same value if in m/s?

?
supposee i needed to onvert 120 ms^2 to m//s how owuld i do that??

GEOMENTRY
WHAT IS THE DISTANCE BETWEEN POINTS (-5,-2)AND (6,4)

help
Estimate the power you deliver when starting to walk from a standstill, in W: & Your body radiates about 88 W in heat energy. How much energy, in J, is radiated in one hour?

physics
i was just wondering what approx is the change in PE in J when standing up from your chair and the KE when walking in J.

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