Tuesday
July 29, 2014

Posts by mm


Total # Posts: 166

statistics
A large group of students has taken a college entrance exam. The scores on the exam are such that the mean = 52 and the standard deviation = 11 Find the probability that a student, selected at random, earned a score lower than 63.

thermodynamic
what is the difference between thermodynamics and heat transfer

physics
Wow some of us on here need actual help you know

physics
In LCR series AC circuit when does the effective voltage lag behind the current?

math
Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother?

Chemistry
what intermolecular forces are present in each: Potassium nitrate, Naphthalene, and benzoic Acid?

Chemistry
i was just wondering in general trying to get an idea of what my instructor will ask us to do next. I am reding ahead in our lab manual

Chemistry
what tests can be run to identify the cation and anion of an ionic compound?

Chemistry
What physical properties can you use to verify the identity of a compound?

Chemistry
what are the relative strengths of the different intermolecular forces?

Chemistry
How can you tell if a molecule is polar or non-polar

chemistry
I pulled this from wikipedia..I hope this helps: For example, common table salt is sodium chloride. When sodium (Na) and chlorine (Cl) are combined, the sodium atoms each lose an electron, forming cations (Na+), and the chlorine atoms each gain an electron to form anions (Cl&...

Chemistry
sorry .900 M

Chemistry
What is the concentration of nitrate ions in a solution that contains M aluminum nitrate?

algebra
How do you do this kind of plroblem? What is the total balance due on a $20000 loan at 5% for 6years if it is compounded semi-annually? (2x per year)

English
Ok I refering to using it so it should be capitalized

English
Does the word Promethean need to be capitalized or lower case letter? It is called a promethean board.

english
Thank you

english
I decided to try this because a lot of students shout out they agree or do agree with the answer. Does this sentence need a comma before because?

science
How does light pass through a flat lens?

english
Thank you

english
SO if I write The students need to know that the New World is America.

english
When using new world in a papar which way is correct? New World or new world

english
Is it self-monitor or self monitor

English
ok thanks

English
I know this because, a student told me that the whole class likes working in pairs or groups. Is this sentence correct or should it have this ; after because

math
100(20*40)

Physics
If the system is in static equilibrium, there is no motion for any of the items. So the tension of the string holding the pulley is Σmass*acceleration due to gravity =(0.5kg+2.0kg+0kg(string)+mass of pulley)*g =(2.5kg+mass of pulley)*g

physics
thgbv

chemistry 101
How many grams of NaCl are dissolved in 250 grams of normal saline solution

economics
Every year Christmas tree vendors bring tens of thousands of trees from the forests of New England to New York City and Boston. During the last two years, the market has been very competitive; as a result, price has fallen by 10 percent. If the price elasticity of demand was &...

Physics
Two objects attract each other gravitationally with a force of 2.1×10−10 N when they are 0.21 M apart. Their total mass is 4.00 KG Find their individual masses. .

Physics
A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.

Physics
A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.

Physics
A small fish is inside a spherical bowl filled with water (n=1.33). The bowl has a diameter of 30cm and the fish is at a distance of 5cm from the surface that separates water and air (ignore the effects of the glass of the bowl). The image of the fish is ... a. Real (forms in ...

Physics
oh k. got it. thanks

Physics
A converging thin lens made out of crown glass (n=1.52) has a focal length f=1.0m An identical lens (same radius for the spherical surfaces), made out of a high-index plastic with n=1.70 will be ... A. Converging with a focal length smaller than 1.0 m B. Diverging with a foca...

Physics
sorry, another question. what would f be in the len makers equation?

Physics
oh nevermind i got it

Physics
how did u get that do=108cm?

Calc ..basic integration
I forgto how to integrate...its been to long. integration(Sqrt(1+2t^2+t^4))

writing skills part 1
which sentences contains a prepositional phrase

college chem
haha..i thought i needed to use torr instead of atm that's how i got that M Thanks a whole lot =)

college chem
A 1.10g- sample contains only glucose and sucrose . When the sample is dissolved in water to a total solution volume of 25.0ML , the osmotic pressure of the solution is 3.78atm at 298K a.What is the percent by mass of glucose in the sample? b.What is the percent by mass of suc...

university-health economics
Medical care is so special that normal economic forces do not apply and normal economic tools are not always used. In view of what you studied, explain the above statement.

Math
One-fourth of the world's population is Chinese and one-fifth of the rest is Indian. What percent of the world's population is Indian?

math
all the mumbers from 1 to 99

math
all the nubers from 1 to 99 are multiplied together. Use a pattern to determine the last digit of the product. Justify your answer.

Social studies
Who nominates judges for the Supreme Court

math
how do you solve 2a in construction

grammar
After sliding into second base Alex realized the outfielder had dropped the ball.

math
what do you call it when someone pays back a loan quickly

sose
how does animal waste effect the environment?

english
Could someone please provide me with reliable sites or comments to the following task: write an essay on the character of Aimee Thanatogenos in The Loved One by Evelyn Waugh and explain how Waugh uses her for his satiric purposes. Thank you!!

Business Ethics
The multi-media presentation helps out a lot. It gives you the case study about Jed and his concerns.I am going to have fun doing this assignment...

us history/english
when told to include 5 documents how can i include do ..do i say according to document 1 .what can i say?

us history
i dont get what the task means when it says discuss problems or injustices that were present in american life...what does injustice mean ...can some one explain it

english
I need help writing a DBQ

us history
I need help on writing an dbq for us history

us history
we..propose.."effective legislation to prevent industrail accidents ,occupational diseases,overwork,and unemployment...to fix minimum standards of health and safety in industry...and to provide a living wage throughout industry....." state 2 reforms that were propose...

ushistory
who were the bosses of the senate?

us history
discuss specific problems or injustices that were present in american life during the late 1800s and early 1900s? Explain how reforms proposed during the Progressive Era attempted to address these problems.

algebra
this is what I got so far.... 3x-5(3x-7)=2(x+9)+45 3x-15x+35=2x+18+45 -12x+35=2x+63 -35=2x+63-35 -12x=2x+28 -2x=28 -14x=28 -x=-2 Is this correct?

algebra
I need help on the following Problem: 3x-5(3x-7)=2(x+9)+45

eth125
why are you so revolted by idiotic and helpless people. Is it because you are so smart? If so, you should leave googling for the idiotic and helpless!!!

eth125
why are you so revolted by idiotic and helpless people. Is it because you are so smart? If so, you should leave googling for the idiotic and helpless!!!

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