Friday
July 25, 2014

Posts by tiffany


Total # Posts: 800

Physics
How much heat must be added to 30 g of water at an initial temperature of 62°C to completely convert the 100°C water to steam?

Chemistry
What about the iron (II) oxide? and the KOH?

Chemistry
I will do an experiment that includes 4 grams of aluminum hydroxide and iron (III) oxide mixture, where 75% of it is Al(OH)3, and 15 ml of water and 25 ml of 2M KOH will be added and then boiled so that the Al(OH)3 dissolves. It will be filtered and then sulfuric acid will be ...

calculus
4. A particle starts at the point (5, 0) at t = 0 and moves along the x-axis in such a way that at time t > 0 the velocity is given by v(t)=t/(1+t^2) a. Determine the maximum velocity attained by the particle. Justify your answer. b. Determine the position of the particle a...

calculus
1. A conical reservoir has a depth of 24 feet and a circular top of radius 12 feet. It is being filled so that the depth of water is increasing at a constant rate of 4 feet per hour. Determine the rate in cubic feet per hour at which water is entering the reservoir when the de...

Understanding psychology eighth edition
verbal skills and muscular coordination have been observed to impruove women when

Spanish-SRAJMcGin please check
Could Sra JMcGin please check my answers to these questions if she has time? Thank you

Spanish-3rd question
I know what it means in English-I was wondering if it was correct in Spanish.

Spanish-3rd question
Thank you again for checking these-I couldn't number them or put question marks in front because jishka wouldn't accept them

Spanish-3rd question
Cuáles son de espectáculo que te gusta? El circo es el espectáculo que me gusta.

Spanish-2nd answer
I was wondering if they were correct in Spanish-I know what they mean in Englsih-I wrote the answers.

Spanish-2nd answer
¿Qué hace los actores en la ópera de teatro? Los actores juegan unos papeles en la obra de teatro. ¿Qué pasa hacer la semana próxima? Voy a la escuela la semana próxima ¿Qué hiciste la semana pasada? Hice mi tarea ...

Spanish
I have to post the questions separately with my answers or they won't accept them-I'm really sorry it keeps saying URL so I will have multiple listings Thank you for checking

Spanish
Please check this Cuáles son algunos comidas típicos de Mexico? Algunos comidas típicos de Mexico son tacos, y enchiladas y frijoles.

Spanish-Plase check
Thank you for responding-these negatives still really confuse me but thank you so much for responding

Spanish-Plase check
Thank you for responding-these negatives still really confuse me but thank you so much for responding

Spanish-Plase check
Thank you for responding-these negatives still really confuse me but thank you so much for responding

Spanish-Plase check
Thank you I appreciate it

Spanish-Plase check
I couldn't number them-it wouldn't take that way so I deleted the numbering thank you for checking

Spanish-Plase check
I had to make some negative sentences. Please check Thank you No tengo nada que hacer. No bebo nunca el batido. No bailo nunca. No hablo nunca francés. Tampoco hablo el alemán No compro ninguno. No quiero comer nada No quiero nunca contestar en la clase. Nadie us...

calculus
Find the area of the region bounded by the graph of y^3=x^3 and the chord joining the points (-1, 1) and (8,4)

calculus
Which of the following are antiderivatives of f(x)=sinxcosx? I f(x)=(sin^2* x)/2 II f(x)=(cos^2* x)/2 III f(x)=-cos(2x)/4

Spanish
Thank you

Spanish
I had to answer the questions in the negative please check 1.Hay alguien en la puerta? No, no hay nadie en la puerta. 2. Hay algo en la mesa? No, no hay nada en la mesa.

math
how do you make 87 cents with 6 coins none of which are half dollars

Chemistry
The specific heat of solid copper is 0.385 J/g*C. What thermal energy change occurs when the temperature of a 40.10g sample of copper is cooled from 42.9C to 10.0C? Be sure to give you answer the proper sign. I know this is part of the answer which (42.9-10.0)*40.10*0.385=508 ...

Chemistry
The specific heat of solid copper is 0.385 J/g*C. What thermal energy change occurs when the temperature of a 40.10g sample of copper is cooled from 42.9C to 10.0C? Be sure to give you answer the proper sign. I know this is part of the answer which (42.9-10.0)*40.10*0.385=508 ...

math
how do you format hours/day-percentage of time spent during an 8 hour work day ?

Chemistry
A compound containing only C, H, and O was extracted from the bark of the sassafras tree. The combustion of 36.3mg produced 98.6 of CO2 and 20.2mg of H2O. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular formulas

Chemistry
A compound containing only C, H, and O was extracted from the bark of the sassafras tree. The combustion of 36.3mg produced 98.6 of CO2 and 20.2mg of H2O. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular formulas

pre-calculus
What is the domain of (x+2)/(x-2)?

Philosophy: Introduction to Logic
1.) (L=N) > C 2.) (L=N) v (P>~E) 3.) ~E > C 4.) ~C /~P

statistics
Assume that the population of heights of female college students is approximately normally distributed with mean m of 66 inches and standard deviation s of 4.00 inches. Show all work. (A) Find the proportion of female college students whose height is greater than 65 inches. (...

spanish
In the following sentences, change the position of the reflexive pronouns so that sentences retain their meaning. Have the correct account punctuation and accentuation. 1. Ellos vienen a despedirse esta noche 2. Daniel se esta afeitando 3. Patricia va a ponrse muy contenta. 4....

Chemistry
Write and balance equation for the complete combustion of decane, C10H22

Physics
A freight train has a mass of 1.7 107 kg. If the locomotive can exert a constant pull of 7.6 105 N, how long does it take to increase the speed of the train from rest to 64 km/h?

Chemistry
Could the answer be fluorine

Chemistry
I have a question I want to make sure I'm going in the right direction. The question states give a diatomic element which is not a gas could the answer be any of the noble gases

Chemistry
I'm looking for the missing information in the table symbol- number of protons-36 number of neutrons-42 number of electrons- mass number-

Chemistry
Fill in the missing information in the following table of four neutral atoms Symbol- 37Cl number of protons- 36 46 number of neutrons- 42 number of electrons- 33 mass number- 77 106

Account Recievables
You notice that your accounts receivable days outstanding has doubled in the first 6 months. Do you give someone a bonus or put him or her on probation? Why?

Chemistry
Give the formula of each of the following copper minerals: A. cuprite, copper (I) oxide B. chalcocite, copper (I) sulfide C. covellite, copper (II) sulfide

Chemistry
heptane and water do not mix, and heptane has a lower density (0.684g/mL) than water (1.00g/mL). A 100mL graduate cylinder with an inside diameter of 3.10 cm contains 39.90g of heptane and 34.00g of water. What is the combined height of the two liquid layers in the cylindar? I...

Chemistry
the answer that I got once I multiply it is 51.3

Chemistry
would you multiply 0.789 x 65.0?

Chemistry
What is the mass of 65.0mL of ethanol? the density of ethanol at room temperature=0.789g/mL

calc
If f (3) = 9 and f ´(3) = 4, find the tangent line to the graph of f when x = 3.

CALC
The radius in meters of a circular oil slick increases at a rate of (12 - 0.3t), where t is measured in hours. Which of the following expressions would calculate the rate at which the area of the oil slick is increasing when the radius is 100 meters?

CALC
Find the tangent line to the ellipse defined by 3x^2 + 5y^2 = 17 at the point (-2, 1).

Medical Billing
278.01,

chemistry
Which of the following statements is (are) true about a compound that has a molecular ion peak in its mass spectrum at mass 94, and shows prominent peaks in its IR spectrum at 3600–3200 and 1600 cm–1? A) The compound has a molecular mass of 94. B) The compound contai...

chemistry
What type of feature will be observed in the EI mass spectrum of chlorobenzene? An absorption at 3100 cm–1 No signal at all A signal at 112 and a signal at 114 in a ratio of 3:1 A signal at 112 and a signal at 114 in a ratio of 1:1

sociology
Define urbanization and suburbanization. What are some ways that urbanization and suburbanization contribute to social problems?

Math
I need help on this??

Math
What is a3-1=? The 3 post to be on top of the a a little bit

Statistics
1-.02=2.33=z-value plug into the equation [(2.33)^2*.5*.5]/(.02)^2 3393.06

MATH(convert fraction)
so 3/8 is 16 centi on a scale and what is 3/4 on a scale?

convert fraction
so 3/8 is 16 centi on a scale and what is 3/4 on a scale?

MATh please help
Helen has$1.35 in her bank in nickels and dimes. There are 9 more nickels than dimes. Find the number she has of each kind.

math help please
Helen has$1.35 in her bank in nickels and dimes. There are 9 more nickels than dimes. Find the number she has of each kind.

MATH (PLease HELp)
Sally has three times as many dimes as nickels and twice as many quarters as dimes.In all she has $5.55. How many coins of each type does she have? Let 2x=quarters 3x=dimes x=nickles <---- is that correct please help put

ALGEBRA-Help please
x+3y=4 -x -x ALWAYS X means 1 3y=4 divide by 4 y=1

MATh
Distance = rate x time

MATh
Kesha dove from Buffalo to Syracuse at an average rate of 48miles per hour. On the return trip along the same road she was able to travel at an average rate of 60 miles per hour.The trip from Buffalo to Syracuse took one- half hour longer than the return trip. How long did the...

MATh (distance)
Kesha dove from Buffalo to Syracuse at an average rate of 48miles per hour. On the return trip along the same road she was able to travel at an average rate of 60 miles per hour.The trip from Buffalo to Syracuse took one- half hour longer than the return trip. How long did the...

Social Studies (civilizations)
How was the Persian empire was different from the Assyrian Empire?

MATh ( translate words into number)
k thx got it

MATh ( translate words into number)
40. The greater of two numbers is 1 ore than twice the smaller. Three times the greater exceeds 5 times the smaller by 10. Find the numbers. How do i start please explain. WHere do i start and how to do do this. AM very confused.

MAth translate please thx
If 5 times the smaller of two numbers is subtracted from twice the larger the result is 16. If the larger is increased by 3 times the smaller, the result is 63. Find the numbers.

Math - translate (please check)
4. The sum of two numbers is 50. If twice the larger is subtracted from 4 times the smaller the result is 8. Find the numbers is it this x+x(2x-4=8)=50

Theme please check
thanks

Theme please check
the story is A piece of Pie by Damon it was mistake for posting it two times

Theme please check
Could the theme be No women could change men The story is about a man marrying a women and the women wants the man changing his diet. The women bosses him around then the man finds another girl and takes off with her. He took off with her because the women bossed him around a...

Social Studies Help!!!!!!!
how did mercantilism affect different cultures?

meaning
The Thar Desert provide the majority of India's rainfall.. Does this mean that the thar desert prevents rain

chemistry
How many moles of sodium bicarbonate are contained in 1mL of a saturated solution of NaHCO3 (approximately 1g of solute is dissolved per 9mL solution)?

English Help!!!!
Could you tell me about a person who dominated the poor and uneducated.

physics
At highway speeds, a particular automobile is capable of an acceleration of about 1.6 m/s2. At this rate, how long does it take to accelerate from 76 km/h to 118 km/h

math
using limits...finding the tangent line of the square root of x when x=2

Algebra
One is traveling 360 mph and the other is traveling 390 mph.

chem
How many gold atoms are in an 0.408 ounce, 18 gold bracelet? (18 gold is 75% gold by mass.)

Com/155
I want to know how it affect your paper

3rd grade math
Ashton broke apart a number into 30+7. What number did she start with?

information litercy
what type of citation would you use for an english paper? 1.ASA 2.Chicago 3.MLA

geometry
Write a two column proof. Given CE = CA, EB and AD are medians, Prove: EB = AD for a triangle

Psychology
Construction

science
Question: If you have an electric motor on a bench and hook it to the power the shaft turns. If you put the shaft in a vise the casing of the motor will turn. Now:...put this motor in free space no gravity and attach a battery for power..when the power is turned on will the mo...

philosophy
What is the influence of television commercials on American culture? If you could do something about TV commercials what would you do?

Math
What q equals.

Math
Yes

Math
Simply. 3 + 4(q + 3) + 4q

SAT English
i need some explanations please

SAT English
people who have committed felonies are not permitted to serve on juries in many states.Also, in Tennessee and Arkansas. there are laws barring atheists from serving on juries and other public service positions. Sometimes,felons are denied the right to vote.Are these restrictio...

apple
Do you recognize the company or organization represented by the logo? If you do, where were you first introduced to this logo? Over time, has the graphic changed but still remained recognizable and associated in your mind with the company or organization? What does the graphic...

science
visual means

science
name att least 3 aspects that contribute through visual means. Give examples?

seeing is believing
Describe one experience where you were deceived by what you saw. Describe one experience where you chose not to believe what you had seen.

organic chemistry
Draw structural formula 4-propyl-1-methyl-cyclohexene

American history
After the Spanish-American War, the _______ reserved the right of the United States to intervene in Cuba's internal affairs.

english
When Greg went to a job interview on Monday, they hired him that same day.When Greg went to a job interview on Monday, they hired him that same day.

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