Thursday
November 27, 2014

Posts by Stephanie


Total # Posts: 1,012

11th grade
At a glassware factory, molten cobalt glass is poured into molds to make paperweights. Each mold is a rectanglar prism whose height is 3 inches greater than the length of each side of the square base. A machine pours 20 cubic inches of liquid glass into each mold. What are the...
November 15, 2010

geometyr
given triangle QRS=triangle TUV, QR=2x=7, RS=13,and QS=3x+2 and TV=7x-6 find the value of x
November 15, 2010

english
thanks guys, but arethere any objects you think i can bring to school?
November 13, 2010

english
are there any objects that represent perseverence? and why? i need this for an english projcet
November 13, 2010

college microeconomics
Suppose that two players are playing the following game. Player 1 can choose either top or bottom, and Player 2 can choose either left of right. The payoffs are given in the following table Player 2 Left Right top 9,4 2,3 Player 1 Bottom 1,0 3,1 where the number on the left is...
November 7, 2010

Algebra
do the FOIL method f for first o for outer i for inner l for last (8y+5z)(8y-5z) 64y^2 + 40yz - 40yz + -25z^2 64y^2 - 25z^2
November 4, 2010

math
the answer is c
November 4, 2010

Math
-2 3/4 - 6 5/9=
November 4, 2010

Math
2 2/3 + -1 1/2=
November 4, 2010

help!!! physics
you want to nail a 1.6 kg board onto the wall of a barn. to position the board before nailing, you push it against the wall with a horizontal force to keep it from sliding to the ground. (a) if the coefficient of static friction between the board and wall is .79, what is teh ...
November 3, 2010

pysics
a .15 kg ball is placed in a shallow wedge with an opening angle of 120 degrees. for each contatct point between the wedge and the ball, determine the force exerted on the ball. assume the system is frictionless.
November 3, 2010

physics
Let mass of hanging block be M Since in equilibrium the hanging mass MG = Tension in the wire Similarly along the incline Tension in the wire = 6.7 * g * sin 42 (Component of force along the incline) So equation both the equations: M*g = 6.7 * g * sin(42) M = 6.7*sin(42) So M...
November 3, 2010

physics
two blocks are connected by a string. the smooth incline surface makes an angle of 42 degrees with the horizontal, andthe block on the incline has a mass of 6.7 kg. find the mass of the hanging block that will cause the system to be in equilibrium. (the pully is assumed to be ...
November 3, 2010

algebra
when you solve a system of equations by the substitution method, how do you determine whether the system of equations is dependent?
October 28, 2010

calculus
Well, we know x=3 and y=8 and dx/dt=4. We need to find z (the distance from the particle to the origin) dy/dt, and finally our answer dz/dt. First solve for dy/dt y=2(3x+7)^(1/2) dy/dt=[2(1/2)(3x+7)^(-1/2)](3dx/dt) dy/dt=[(3x+7)^(-1/2)]3dx/dt dy/dt=[(3(3)+7)^(-1/2)](3(4)) dy/...
October 26, 2010

chemistry
strontium nitrate reacts with potassium iodate. What is its molecular,ionic and net ionic equations?
October 23, 2010

statistics
1.test wheter these samples represent populations that are different from the general population- sample of 10 with a mean of 44 and sample of 1 with a mean of 48. 2. The general population of individuals has a mean of 40 , a deviation of 6, and follows a normal curve. for ...
October 22, 2010

Chemistry
The following is given: 20 ml of HCl (2.0 M) added with 5 ml of Na2S2O3 (0.3 M) with 5 ml of H2O S2O3^-2(aq) + 2H^+1 (aq) --> S (s) + SO2 (g) + H2O (l) Calculate the following: a) Reaction rate when 30 mg of sulphur is formed (in 30 ml of solution) after 55 seconds. b) Rate...
October 20, 2010

algebra
the ratio of two integers is 9:7. their sum is 1024. find the two integers.
October 19, 2010

English
Thanks again. Believe I have hang of it now.
October 18, 2010

English
My last two that are confusing me. Identify verb and tell if transitive or intransitive. 1) Most people think of bamboo as a tree or a bush. 2) Bamboo belongs to the grass family. 1) think=intransitive 2) belongs=intransitive
October 18, 2010

English
Thank you very much.
October 18, 2010

English
Please check and see if I answered correctly. Have to identify the verb and tell if intransitive or transitive 1. In China people eat the tender shoots as a vegetable. 2. The Japanese also make flutes from the stems. 3. In some countries, bamboo cages hold animals. 1.eat=...
October 18, 2010

PHYSICS
Actually there are 3600seconds per hour. So the answer of 29.06m/s is correct.
October 17, 2010

PHYSICS
A 287-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.810, and the log has an acceleration of 0....
September 30, 2010

PHYSICS
Pluto has a mass of 1.30 1022 kg and a radius of 1.18 106 m (a) What is the acceleration due to gravity on Pluto? (b) How much would a 4.7-kg person weigh on this planet?
September 30, 2010

3rd grade
100
September 23, 2010

english
how can i use appositives in a conservation with a friend
September 20, 2010

physics
A volleyball is deflected vertically by a player in a game housed in a high school gymnasium where the ceiling clearance is 18m. If the initial velocity of the ball is 21.5 m/s, will the ball contact the ceiling?
September 19, 2010

physics
A ball is kicked at a 37 degree angle, with a velocity of 14.6 m/s. How high and far does the ball go?
September 19, 2010

6th grade science
this website barley actually does any homework help
September 17, 2010

English
i need help What does It mean to be an american citizen ?
September 15, 2010

college economics
Assume Nebraska and Virginia each have 100 acres of farmland. The following table gives hypothetical figures for yield per acre in the two states: Nebraska Virginia Wheat 15 5 Cotton 7 4 Who has the comparative advantage in the production of wheat? *For this answer, I think it...
September 13, 2010

3 English H
How can I illustrate the word "aberration"?
August 31, 2010

algebra 1 honors
it says simplify each expression. justify each step. 1. (2 + 7m) + 5 2. 9 x (r x 21)
August 25, 2010

science
Identify the fruit or vegetable you selected and relate the second law of thermodynamics to the changes in energy observed in Appendix C. How did the amount of energy gained compare to the amount of energy lost as heat at the second through fourth trophic levels? o Answer the...
August 24, 2010

ALGEBRA
putting function machines in order. completely don't understand.
August 18, 2010

Math
Explain why the statement is incorrect: The probability that a bus will arrive late at the Civic Center is 0.35 and the probability that it will be on time ore early is 0.60
August 15, 2010

english
I am having a hard time coming up with several sentences about an interaction with a friend or family member about personal finance or credit cards that includes five different pronouns, adverbs, and adjectives. Can anyone help me?
August 1, 2010

Math-please check my answer
That is correct! Great job!
August 1, 2010

geometry
If VZ = 21, ZX = 24, and Z is the midpoint of WY, what is the length of WZ rounded to the nearest tenth?
July 29, 2010

economics
What is meant by the term utility and how does it relate to purposeful behavior
July 27, 2010

geometry
Find the volume of a cylinder with radius 6 cm and height 10 cm. Use 3.14 for ð. Round your answer to the nearest tenth.
July 25, 2010

health
does champva provide adequate level of health insurance for participants
July 21, 2010

British Literature
14. Realism was largely a reaction against >> D) Romanticism 15. Realism is associated with >> D) all of the above Those are the ones I can do easily now. I've never read the stories in here, though I recently finished a big-ass British literature course :O
July 21, 2010

Physics
A .6-kg mass at the end of a spring vibrates 3.0 times per second with an amplitude of .13 m. Determine a.) the velocity when it passes the equilibrium point, b.) the velocity when it is .1 m from equilibrium. c.) the total energy of the system, and d.) the equation describing...
July 17, 2010

Math
1. Identify the degree, leading term and leading coefficient of each polynomial function. A. f(x)= x(x+1)(3x+1)(x-2) B. f(x)= -16+3x^4 - 9x^2 - x^6 + 4x^8 2. Describe the end behavior of a ninth-degree polynomial function with a negative leading coefficient.
July 15, 2010

math
6x-4y=8 have to find the slope for that equation, and the y-intercept, so I'll start with x=0
July 12, 2010

chemistry
when 25.0 g of Zn reacts how many L of H2 gas are formed at STP
July 5, 2010

chemistry
a sample of H2O with a mass of 46.0 grams has a temperature of -58.0 degress celcius. how many joules of energy are necessary to melt 46.0 grams of ice?
June 28, 2010

chemistry
what is the solubility of Ag in water at 0 degrees celcius? what is it for calcium carbonate? and yellow brass?
June 21, 2010

Chemistry
A0 2.95 cm3
June 2, 2010

US History
Where were some of the great achievements created by the enormous growth of American cities in the last decades of the 19th century?
May 31, 2010

Billing and Coding
How do you know what the main term is in a multiple-word diagnosis? Example: Acute Fulminating Multiple Sclerosis
May 27, 2010

English /Lit
Using literary elements,compare and contrast Abigail Adams letter to her daughter with Jean de Crevecoeur's essay from letter to an American farmer. Now i read both essays, and im very fond of both of them . but i have trouble on what to compare and contrast on them, and ...
May 24, 2010

5th grade
Carol uses the same ratio table to solve the problems below. Do you agree or disagree? 8 cows/2 pigs = c cows/10 pigs 2 pigs/8 cows = 10 pigs/c cows
May 11, 2010

COMM/215 Final Grammar exam, please help
Please help me out with my final grammar exam, COMM/215 Thank you
May 8, 2010

grammar
Can you plese tell if the follong questions are true or false (fragment) 1. That movie, one of my favorites, true or false? 2.-The local baseball team, needing a good picher true or false? 4.- Using a flashlight, he looked under the bed for his shoes true or false, thank you
May 8, 2010

college chemistry
A) In some regions of the southwest United States, the water is very hard. For example, in Las Cruces, New Mexico, the tap water contains about 560 ug of dissolved solids per milliliter. Reverse osmosis units are marketed in this area of soften water. A typical unit exerts a ...
April 28, 2010

college chemistry
A solid consists of mixture of NaNO3 and Mg(NO3)2. When 6.50 g of this solid is dissolved in 50.0 g of water, the freezing point is lowered by 5.40⁰C. What is the composition of the solid (in mass percent)? Assume ideal behavior but watch out for the van’t Hoff factor.
April 28, 2010

college chemistry
Pentane, C5H12, and hexane, C6H14, combine to form an ideal solution. At 25⁰C the vapor pressure of pentane is 511 torr and that of hexane is 150 torr. In the vapor over a pentane-hexane solution at 25⁰C, the mole fraction of pentane is 0.15. What is the mole ...
April 28, 2010

college chemistry
If gaseous H2 and O2 are carefully mixed and left alone, they can remain intact for millions of years. Is this “stability” a function of thermodynamics or of kinetics? Give a valid reason to support your choice.
April 28, 2010

college chemistry
a) Is the reaction shown below spontaneous under standard conditions at 25⁰C? CH3OH (g) ----> CO (g) + 2H2 (g) b) Will this reaction be spontaneous at 25⁰C given the following amounts of materials? CH3OH at 1.20 atm CO at 0.080 atm H2 at 0.020 atm
April 28, 2010

college chemistry
Sodium chloride is added to water (at 25⁰C) until it is saturated. Calculate the Cl- concentration in such a solution. Useful data are provided below. ∆G⁰f (kJ/mole): NaCl (s) -384 Na+ (aq) -262 Cl- (aq) -131
April 28, 2010

college chemistry
Carbon monoxide is toxic because it bonds much more strongly to the iron in hemoglobin (Hgb) than does O2. Consider the following reactions and approximate free energy changes: Hgb + O2 ---> HgbO2 ∆G⁰ = -70 kJ Hgb + CO ---> HgbCO ∆G⁰ = -80 kJ ...
April 28, 2010

college chemistry
A zinc-copper battery is constructed as follows: Zn | Zn+2(0.10 M) || Cu+2 (2.50 M)| Cu The mass of each electrode is 200.0 g. Each half cell contains 1.00 liter of solution. a) Calculate the cell potential when this battery is first connected. b) Calculate the cell potential ...
April 28, 2010

college chemistry
Cadmium sulfide (CdS) is used in some semiconductor applications. It is possible to evision the dissolving of this slightly soluble substance as an oxidation-reduction reaction. Calculate the value of the solubility (Ksp) for CdS given the following standard reduction ...
April 28, 2010

college
A standard voltaic cell is constructed so that the overall cell reaction is 2Al+3(aq) + 3M(s) --> 3M+2(aq) + 2Al(s) where M is an unknown metal. If ∆G⁰= -411 kJ for the overall cell reaction, identify the metal used to construct the standard cell.
April 28, 2010

spanish
what colors do you associate with the following words and phases? el invierno, el verano, la primavera, el ortorio, los peces tropicales, el perro Osito, Rosario
April 27, 2010

physics
A siren mounted on the roof of a firehouse emits sound at a frequency of 900 Hz. A steady wind is blowing with a speed of 15 m/s. Take the speed of sound in calm air to be 343 m/s. (c) Firefighters are approaching the siren from various directions at 15.0 m/s. What frequency ...
April 19, 2010

9th grade
(5c-9)(5c+1)
April 17, 2010

Organic Chemistry
A student tried to dissolve 5.0 grams of impure acetanilide in 50 Ml of hot water. However was not able to get it to dissolve. Why not? What would you do to get it to dissolve??
April 14, 2010

chemistry
THANKS MATT! I'm in your class too! haha, this totally helped. haha
April 6, 2010

Math/Algebra
AlgebRA / MATH
March 30, 2010

Calculus
Find the derivative of y=cos(squarerootsin(tzn(pi*x)))
March 28, 2010

Physical Science
Consider the current-carrying wires in the figure. Both cases consist of long straight wires carrying a current I. In both cases, the wire is also bent in the shape of a circular loop of radius R. The only difference is in how the bending of the wire is done to create the ...
March 19, 2010

literature
during what part of bernice bobs her hair does bernice cut Marjories braids
March 17, 2010

math
give the prime factorization of 189
March 14, 2010

Physical Science
The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... a)The radius of the circle b)The mass of the particle c)The charge of the particle d)The magnitude of the magnetic field e)Actually, it ...
March 13, 2010

HISTORY
WHAT ARE GOOD REULTS OF WW1?
March 13, 2010

Physical Science
Two parallel transmission wires are laid between electrical towers. The distance between towers is 200 m, while the separation between the parallel wires is only 2.5 m. If the wires carry each a current of 1000 A, the magnitude of the force between the wires is closest to ... ...
March 10, 2010

Physical Science
A 9-Volt battery is used to charge a 280 mF capacitor over a 81 Ohms resistance. How long will it take for the capacitor to reach 75% of its maximum charge? What formula is relevant?
March 10, 2010

Writing
I need to SHOW DONT TELL for my essay but need help showing Mischievous, Please Help
March 7, 2010

social studies
i would use my textbook if i had one!
March 7, 2010

social studies
what positive changes did kublai bring to ching? i have a test tomorrow please help!
March 7, 2010

social studies
what made the mongols powerful conquerors?
March 7, 2010

algerbra
n = 14
March 2, 2010

Thesis statement
How do you start a thesis statement that discusses the use of metaphors, simile, imagery and symbolism in a text?
March 2, 2010

English
your welcome!:)
February 28, 2010

English
could change the second and to where.
February 28, 2010

English
The burglas climbed hastily out of the window, terrified that he'd be caught. He didn't notice the water-butt and eventually got stuck in it and he was caught by the passing policeman.
February 28, 2010

Ethics(Proofread)
Can you please prrof reread this paper for me? As you seen before I had to write about different ethnic groups and discrimination. Please let me know what you think. Thanks! Jews in America Jews in the United States have faced prejudice, segregation, and racism. From the time ...
February 28, 2010

3rd grade
Basic Literary Elements Chart Characters Setting Conflict Theme Protagonists: Time: Who is involved: Antagonist: Place: Type of conflict:
February 28, 2010

Ethics
I have a paper started for my ethics class, but I am not sure if it fits the "criteria" or not. I am supposed to write about an ethic group to which I belong. I decided to do White women. But then I am supposed to have how the group colonized or immigrated to the US...
February 28, 2010

ETH 125
I need to write an essay answering questions. I am having trouble finding any websites on the group that I have chose. Can anyone help me find a site or a couple to answer these following questions? Did the group face prejudice, segregation, racism or any combo of the three? ...
February 26, 2010

Trigonometry
Each base angle of an isosceles triangle measures 42°. The base is 14.6 feet long. A) Find the length of a leg of the triangle. Round to the nearest tenth of a foot.  B) Find the altitude of the triangle. Round to the nearest tenth of a foot.
February 26, 2010

Math
A blueprint for a house shows a bedroom being 5.5 inches wide. The scale used to create the blueprint is 0.50 in. = 1 ft. What is the actual width of the bedroom?
February 25, 2010

Science
I am having trouble finding anything to answer this question. Any help I would appreciate it! Describe Darwin's Theory of Natural Selection and indicate why species are able to adapt to changes in their enviroment. Be sure to include a discussion of how "survival of ...
February 24, 2010

college algebra
By setting up and solving a proportion involving x, find the value of x for the car that you have chosen. State the type of car, the mileage, and show both the set up of the proportion and the steps to solve. Include units with your answer. How would I do this problem? What ...
February 23, 2010

Government
The US has money is all i could come up with. But that isn't true since we are about 3+ Trillion dollars in deficit due to wars and many other things.
February 21, 2010

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