Friday
February 12, 2016

Posts by natasha

Total # Posts: 379

Physics
What is an essential characteristic of an object in equilibrium?
October 11, 2009

Chemistry
moles = mass / molar mass convert 1.00 kg of silver into grams so 1000 grams and divide this by the molar mass of silver which you can find in your periodic table
October 6, 2009

Physics
A standard man wants to do reverse curls in a gym. He holds his arms straight, using an overhand grip to hold the bar. If the mass of the bar is given as 140 kg, what is the tension in each of his shoulders? Consider the weight of the arm and the weight of the bar. Note: Use 4...
October 6, 2009

2 masses, pulley on a frictionless incline
an object of mass m1= 311 g on an inclined surface. The angle of the inclined surface is θ = 40o with the horizontal. The object m1 is connected to a second object of mass m2 = 355 g on the adjacent horizontal surface. Further, an external force of magnitude ІFext&#...
October 6, 2009

Kinematics. Newtons Laws
A standard man does reverse curls in a gym. He holds his arms straight, using an overhand grip to hold the bar. If the mass of the bar is given as 127 kg, what is the tension in each of his shoulders? Consider the weight of the arm and the weight of the bar. Note: Use 4.9kg as...
October 6, 2009

Kinematics. Newtons Laws
Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below. Use m1 = 1.2 g, m2 = 254 g and F = 0.7 N to find the force between the two objects.
October 6, 2009

Physics
Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below. Use m1 = 1.2 g, m2 = 254 g and F = 0.7 N to find the force between the two objects.
October 6, 2009

us history
In what ways did democracy create a new political culture? How did democracy impact social change?
September 26, 2009

college
In what ways did democracy create a new political culture? How did democracy impact social change?
September 26, 2009

HIS 115
What were the negatives of the new market economy? What were the positives of the new market economy? How did the creation of a single market economy shape American values and the economy of today?
September 23, 2009

college
What were the negatives of the new market economy? What were the positives of the new market economy? How did the creation of a single market economy shape American values and the economy of today?
September 23, 2009

math
(5x)+14=14+(5x)is this associative property of addition?
September 19, 2009

managerial accounting
The expected average rate of return for a proposed investment of $500,000 in a fixed asset, with a useful life of four years, straight-line depreciation, no residual value, and an expected total net income of $240,000 for the 4 years, is A. 18% B. 48% C. 24% D. 12%
August 22, 2009

accounting
The Anderson Company has sales of $4,500,000. It also has invested assets of $2,000,000 and operating expenses of $3,600,000. The company has established a minimum rate of return of 7%. What is Anderson Company's profit margin? 18% 44.4% 20% 80%
August 14, 2009

managerial accounting
The Joyner Corporation originally budgeted for $360,000 of fixed overhead. Production was budgeted to be 12,000 units. The standard hours for production were 5 hours per unit. The variable overhead rate was $3 per hour. Actual fixed overhead was $360,000 and actual variable ...
August 10, 2009

college
The Joyner Corporation originally budgeted for $360,000 of fixed overhead. Production was budgeted to be 12,000 units. The standard hours for production were 5 hours per unit. The variable overhead rate was $3 per hour. Actual fixed overhead was $360,000 and actual variable ...
August 9, 2009

Math
10(10X + 11) = 10 I'm trying to slove for X but can't seem to get any number that will equal 10
April 16, 2009

college
solve for X 10(10X + 11) = 10
April 16, 2009

college
what is meant by reusability in Access 2007
March 19, 2009

alegbra
if the line is (1,-3) then will the answer be y=-5x+8
March 16, 2009

college biology-drug metabolism
You are interested in examining the metabolism of a new drug that has been developed in your company. Briefly describe how you would determine whether cytochrome P450 is involved in metabolizing the drug, and if so, which subtype is involved.
February 23, 2009

preschool
identify factors which may have influenced the validity and reability of the ovservations.thank for your help.
January 25, 2009

Algebra 2
P (-1, 2) Q (k, -4) m= -1/2 determine k so that the line through the given points will have slope m. how do you do this?
September 9, 2008

CHEMISTRY
The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?
August 12, 2008

geometetry
i need the answer too
August 7, 2008

geometetry
A cow is tied to the long side of a barn 10 feet from the corner.The rope being used to tie the cow to the barn is 21 feet long .The barn measures 11 feet wide and 28 feet long, what is the total area of the space in which the cow can graze
August 7, 2008

chemistry
If 4 moles of gas are added to a container that already holds 1 mole of gas, how will the pressure change inside the container?
August 7, 2008

Critical Thinking
1. Apple polishing 2. Scare tactics 3. straw man 4. wishful thinking 5. perfectionist fallacy 6. poisoning the well 7. "Argument" from outrage 8. Inconsistency ad hominem 9. hasty generalizing 10. red herring/smokescreen 11. post hoc 12. guilt trip 13. argument from ...
August 6, 2008

chemistry
A mixture of gases at a total pressure of 95 kPa contains N2, CO2, and O2. The partial pressure of the CO2 is 24 kPa and the partial pressure of the N2 is 48 kPa. What is the partial pressure of the O2?
July 29, 2008

chemistry
A rigid container of O has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?
July 29, 2008

chemistry
The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?
July 29, 2008

chemistry
Under what conditions of temperature and pressure is the behavior of real gases differ most from that of ideal gases?
July 29, 2008

chemistry
A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at 101.4 kPa ifpHe = 82.5 kPa and pCO2 = 0.4 kPa
July 29, 2008

chemistry
If a balloon containing 3000 L of gas at 39C and 99 kPa rises to an altitude where the pressure is 45.5 kPa and the temperature is 16C, the volume of the balloon under these new conditions would be calculated using the following conversion factor ratios
July 29, 2008

chemistry
A sample of gas occupies 17 mL at -112C. What volume does the sample occupy at 70C?
July 29, 2008

science
Folic acid, iron and calcium
July 29, 2008

chemistry
Consider an iron cube and an aluminum cube. If the two cubes were at the same temperature, how would the average kinetic energy of the particles in iron compare with the average kinetic energy of the particles in aluminum?
July 29, 2008

chemistry
is the answer 151.9
July 29, 2008

chemistry
i really hate chemistry it hurts my brain i have problems with all the techinical thingys so im guessing again yaay me
July 29, 2008

chemistry
If a total of 13.5 mol of NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of CO2 and Na3C6H5O7 will be produced? 3NaHCO3(aq) + C6H8O7(aq) ƒ{ƒ®3CO2(g) + 3H2O(s) +Na3C6H5O7(aq)
July 29, 2008

chemistry
hahaha i wish i new how to do all that stuff im not very smart but ill try it ill prolly get it wrong anyway but thank you very much
July 29, 2008

chemistry
which of the following would be the limited reagent in the reaction shown below there are 50 molecules of O2 and 50 molecules of H2
July 29, 2008

chemistry
thank you ever so much
July 29, 2008

chemistry
The equation Mg(s) 2HCl(aq)---MgCl2 (aq) H2(g) is an example of which type of reaction?
July 29, 2008

chemistry
thank you very very very much
July 29, 2008

chemistry
what is the balanced equation for the reaction that takes place between bromine and sodium iodide
July 29, 2008

math
thats imposible your girlfriend should go back to school
July 27, 2008

math
For each piecewise function, find the specified function values. g(x)={x+4, for x<1 {8-x, for x>1 g(-4),g(0),g(1), and g(3)
June 5, 2008

Chemistry
Ok I messed it up when I wrote it, it should be 25.84/.585 = 44.17 So then would it be 44.17(100.23) = 4427.16 Is that right? The chart in my text says that the accepted molar mass of heptane is 4817. Is my answer too far away from the accepted value? Did I do it right?
April 21, 2008

Chemistry
In a laboratory activity, a student team measures the heat released by burning heptane. Using the following data, calculate the molar heat of combustion of heptane in kJ/mol: Mass of water - 179.2 g Initial water temperature - 11.6 degrees C Final water temperature - 46.1 ...
April 21, 2008

Chemistry
Calculate the maximum concentrations of Pb+ that can exist in 3.0 x 10(-2)M Na2SO4 without forming a precipitate.
April 7, 2008

history
What were some of the accomplishments/achievments of the union called the Kinghts of Labour??
February 10, 2008

english
What did Zora Neale Hurston and Langston Hughes do for America in the 1920's?
February 6, 2008

science
The electric field in the atmosphere is about 140 N/C, downward. (b) Find the electric force on a proton with charge +1.6 10-19 C. formula please??
January 30, 2008

science
What charge exists on a test charge that experiences a force of 2.2 10-8 N at a point where the electric field intensity is 1.0 10-4 N/C? what formula do i use??
January 30, 2008

literture
kestrel for a knave
January 21, 2008

english
_____ is a speakers willingness to accept that some counter arguements might be valid
December 29, 2007

Englih rhymes
The small parts of wild plants is weed's seeds and the jumps of lambs is sheep's leaps YOUR WELCOME!
November 15, 2007

math
7 + 2 (-8x + y ) - (-11x + 2y)
September 16, 2007

math
thank you so much
September 15, 2007

math
16a - 5b - (-6a - 15b) - (-4b)
September 15, 2007

math
how do i solve this ... -4 (9a-b)+ 3 (5a +2b)
September 11, 2007

history
You're a famous movie producer. Large historical epics have become very popular, and you want to get in on the action. You need to develop a proposal to "pitch" to a movie studio. But what hasn't been done? Ben-Hur and Spartacus were big hits in the 1950s, ...
July 27, 2007

Statistics
Biologists studying the healing of skin wounds measured the rate at which new cells closed a razor cut made in the skin of an anesthetized newt. Here are data from 18 newts, measured in micrometers per hour: 29,27,34,40,22,28,14,35,26,35,12,30,23,18,11,22,23,33. Questions: a)...
April 25, 2007

calculus
-6/5
April 21, 2007

Math
In a collection of nickels, dimes, and quarters worth &6.90, the ratio of the number of nickels to dimes is 3:8. The ratio of the number of dimes to quarters is 4:5. Find the number of each type of coin. Use a coin value chart to help. well, 4:5 is the same as 8:10 That makes ...
April 11, 2007

Early Childhood Education
Appropriate materials and equipment for outdoor play should contain which? 1. a lot of immovable parts 2. some loose parts 3. large,simple,steel units designed for a single purpose. 4. hard,strong surfaces for ground cover Shouldn't the materials and equipment contain a ...
April 2, 2007

math
I tried many times this problem but it makes nonsense. Which statement is NOT true? 10+6x3-2divide2=27 10x6+3-2divide2=62 10-6+3x2divide2=8 10-6x3divide2+2=3 Without parentheses to specify the order of operation, there are many ways to interpret each of those, but 10 + (6x3...
March 21, 2007

Algebra
Rationalize the denominator of each expression. Assume that all variables are positive. I understand how to divide them, but don't exactly know how to rationalize them. ã3xy^2/ã5xy^3 Thanks in advance.
February 22, 2007

chemistry
We did this in a lab and nothing happened, but I'm pretty sure something was supposed to happen, so my question is: What happens when you put a pellet of sodiumhydroxide on a watch glass and observe it for 5-10 minutes? If there were hudidity in the air, it should have ...
February 14, 2007

algebra
Identify the period and amplitude of each function. y=3cosÈ y=-2cos2t y=2cos1/2t
January 30, 2007

To-Ms. Writeacher
I posted 2 questions under Law. Margie answered them. Can you please look at the questions and tell me if I am right? Thank you!
January 24, 2007

Another Law question
An action in________ law would be the most appropriate way to stop a construction company from razing a 150-year-old house that sits on property that you claim as your own. A. common B. equity C. criminal D. civil This would be an action in civil law. Am I correct? An action ...
January 24, 2007

LawQ uestion-- Please Help!!
Which of the following groups has the best chance of bringing a class action lawsuit? 1. Everyone who developed a severe sunburn on the same day in Miami, despite using one of the leading brands of sunblock. 2. Elderly patients who complain of back problems and who all live in...
January 24, 2007

Law
Which one of the following groups has the best chance of bringing a class action lawsuit? A. Everyone who developed a severe sunburn on the same day in Miami, despite using one of the leading brands of sun block. B. Elderly patients who complain of back problems and who all ...
January 23, 2007

Geogrophy
WHAT IS PRIMARY SECONDARY TRITARIY
October 2, 2006

Environment
What is Arsenic pollution? I assume you are talking about higher than normal amounts of arsenic in air/water/etc. Arsenic need not be in the metal form (elemental form) to be toxic. Most, if not all, compounds of arsenic are toxic at some level. As2O3 and As2O5, for example, ...
September 26, 2006

Math
How do I convert these decimals? You need to give us some decimals to convert. When you do, show us what you think should be done to convert. You need to give us some decimals to convert. When you do, show us what you think should be done to convert. to a fraction, you put the...
August 29, 2006

ETH 125
Hello I am an Axia student in my second week of Ethics. Thanks a lot for the information. Good luck to all.
July 20, 2006

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