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November 28, 2014

Posts by lee


Total # Posts: 794

Chem
What mass of lithium (in g) is required to react completely with 58.3 mL of N2 gas at STP?
October 23, 2012

physics
A child has a temperature of 101◦F. If her total skin area is 13 m2, find the en- ergy loss per second due to radiation, assum- ing the emissivity is 1. The Stefan-Boltzmann constant is 5.6696 × 10−8 W/m2 · K4 . (As- sume the room temperature is 70&#...
October 21, 2012

physics
A child has a temperature of 101◦F. If her total skin area is 13 m2, find the en- ergy loss per second due to radiation, assum- ing the emissivity is 1. The Stefan-Boltzmann
October 21, 2012

algebra
Could someone please explain this question to me.
October 20, 2012

algebra
You live near a bridge that goes over a river. The underside of the bridge is an arch that can be modeled with the function y=-0.000475x^2+0.851x, where x and y are in feet. How high above the river is the bridge(the top of the arch)? How long is the section of bridge above ...
October 20, 2012

algebra
Thank you.
October 20, 2012

algebra
what is the vertex form of the equation y=x^2+4x-3 Could someone please explain.
October 20, 2012

algebra
Identify the maximum or minimum value and the domain and range of the graph of the function y=2(x-3)^2-4 Can someone please help me.
October 17, 2012

algebra
Oh thank you for explaining
October 17, 2012

algebra
Identify the vertex and the axis of symmetry of the graph functio y=3(x+2)^2-3 Could someone please help me
October 17, 2012

Physical Science
Yes, based on Newton's Third Law, they both exert an equal and opposite force on each other.
October 9, 2012

english
How would you briefly describe Poe's requirement for the short story genre?
October 9, 2012

english
How would you briefly describe what the lerary movement Romanticism valued?
October 9, 2012

Geometry
If a regular pentagon has sides of four feet, what is the length from the vertex to the midpoint of the opposite side
September 30, 2012

phy101
make correction, The orbital radius of a satellite in a geosynchronous orbit is 4.2x10^7 m.)
September 26, 2012

phy101
Calculate the velocity needed for an object starting at the Earth's surface to just barely reach a satellite in a geosynchronous orbit. Ignore air drag and assume the object has a speed of zero when it reaches the satellite. (The orbital radius of a satellite in a ...
September 26, 2012

algebra
The office manager of a small office ordered 120 packs of printer paper. Based on average daily use, she knows that the paper will last about 40 days. What graph represents this situation? How many packs of printer paper should the manager expect to have after 10 days? Not ...
September 18, 2012

algebra
Can someone please try and see if you understand what I'm asking. Says to use vertcal line test to determine which graph represents a function. one line is straight up and down a complete circle(which i think) an complete line from an angle line from an angle half way and ...
September 18, 2012

algebra
center dot x=0 line up 1 to the left of y x=-2 line up to 2.5 to the left of y x=-3 line up to 4.5 to the right of y x=2 line up to 2.5 to the right of y x=3 line up to 4.5 Does this help?
September 18, 2012

algebra
above the x axis a dot on the -2 line up to 2.5, and another dot on -3 line up to 4.5, thats on left side, then right side a dot on 2 line up 2.5, and another on line 3 up to 4.5. Not sure how to figure this is someone is willing to help. possible answers; domain: {–3, &#...
September 18, 2012

Science
Two blocks (one 10kg; other 5 kg) are connected by a string that runs over the surface of a frictionless table. 1. Are the masses moving or stationary? 2. Whats the accelaration of the 10 kg mass 3. whats the acceleration of the 5 kg mass? if the string is cut when 5 kg mass ...
September 17, 2012

math
a cars tank can hold 17 gallons of gas on the freeway and i get 28 miles per gallon and i drive 32 miles whats the amount of gas in my tank
September 12, 2012

math
Diver jump from cliff at heights of 85 to 115 feet above the water. After t seconds, a diver has fallen 16t2 feet. Does a diver jumping from a height of 85 feet reach the surface of the water within 2 seconds?
August 28, 2012

health
You need to watch your mouth Ms sue and how you talk to these kids keyword their just kids! calm your ass down, your ass be wrong half the time anyway illiterate ass!
August 14, 2012

math
alex has twice as much money as jennifer. jennifer has $6 less than shannon. together they have $54. How much money does each have?
August 6, 2012

algebra
WRITE THE SLOPE INTERCEPT FORM OF THE LINE SHOWN IN THE GRAPH. WHICH IS (5,-7)(4,7) PLEASE SHOW WORK
July 15, 2012

ALGEBRA
WRITE THE SLOPE INTERCEPT FO (5,-7)(4,7) AND SHOW WORK
July 15, 2012

ALGEBRA
GIVEN THE LINEAR EQUATION Y=4/3X+1 FIND THE Y COORDINATES OF THE POINTS (-6), (-3), AND(6). PLOT THOSE POINTS
July 15, 2012

Chemistry
X=\MX=\MX=\M What is this?
July 3, 2012

economics
a type of economic goods
June 18, 2012

Health care
Which has a greater influence on a person’s health: individual choices and actions (micro perspective) or community policies and resource availability (macro perspective)?
June 7, 2012

Chemistry
The rate constant of a particular reaction is halved when the temperature is decreased from 323 K to 273 K. Calculate the activation energy for the reaction.
May 21, 2012

history
my name was never hayden!!!!!
May 16, 2012

history
please please please please please help me mrs.sue!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! please
May 16, 2012

history
I am SOOOOOO STRESSED OUT
May 16, 2012

history
i am gonna pull my hair out one by one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
May 16, 2012

history
i dint have any choices
May 16, 2012

history
Confucius thought that if people showed respect towards _________ they will also show respect in _________.
May 16, 2012

Physics
help!!!
May 12, 2012

Physics 121
Please do show you did it and which formula did you use. Thanks very much.
May 5, 2012

Physics 121
The pulley has an inner radius of 0.35m and an outer radius of 0.65m. It has a mass of 1.8kg. A string wrapped around the inner part of the pulley is fastened to the ceiling. A second string wrapped around the outer part of the pulley is fastened to a block. Determine the mass...
May 5, 2012

language arts
I have an assignment where it says to write a sonnet with 14 lines but they also say to have 14 syllables per line. I thought it was 10 syllables per line. Can anyone help ?
May 3, 2012

Algebra
Will you explain the concept of "i" in algebra? Problem: 4+2i/4-2i
April 24, 2012

Chemistry
Enough of a monoprotic acid is dissolved in water to produce a 0.0169 M solution. The pH of the resulting solution is 2.68. Calculate the Ka for the acid.
April 21, 2012

Chemistry help
A substance with pH of 3 is 10 times as Acidic as a substance with a pH of 4. *****or******* A substance with a pH 3 is twice as acidic as a substance with a pH of 4.
April 14, 2012

Chemistry
1. Balance the equation. 2. mols NaOH = M x L = ? 3. Convert mols NaOH to mols H2SO4. 4. M H2SO4 = moles H2SO4/L H2SO4. 5. 2 moles I believe
April 12, 2012

Chemistry
NaOH+H2SO4-> H2o+Na2SO4? How many moles of NaOH required to neutralize 1 mole H2SO4?
April 12, 2012

Chemistry
Which of the following is correct? A)A substance with pH of 3 is 10 times as Acidic as a substance with a pH of 4. B)A substance with a pH 3 is twice as acidic as a substance with a pH of 4.
April 12, 2012

Science
25 cm of 1.0 mol dm− NaOH is added to 25 cm of 1.0 mol dm− HCl. The temperature rise is 6¢XC. Which reactants will also give a temperature rise of 6¢XC? A. 25 cm of 2.0 mol dm− NaOH and 25 cm of 2.0 mol dm− HCl. B. 50 cm of 1.0 mol dm− ...
April 9, 2012

Chemistry
25 cm of 1.0 mol dm− NaOH is added to 25 cm of 1.0 mol dm− HCl. The temperature rise is 6¢XC. Which reactants will also give a temperature rise of 6¢XC? A. 25 cm of 2.0 mol dm− NaOH and 25 cm of 2.0 mol dm− HCl. B. 50 cm of 1.0 mol dm− ...
April 9, 2012

Chemistry
How do you convert Ounces to Grams longhand?
March 22, 2012

Statistics
A researcher predicts that watching a film on institutionalization will change students’ attitudes about chronically mentally ill patients. The researcher randomly selects a class of 36 students, shows them the film, and gives them a questionnaire about their attitudes. ...
March 5, 2012

math
x over 5,2x over 15,3x over 45,12 over 135 Find the value of x in the above sequence
March 1, 2012

algebra
6) Write with positive exponents: [ 3-3 a-2 b5 c-3 d-4]
February 23, 2012

algebra
6) Write with positive exponents: [ 3-3 a-2 b5 c-3 d-4]
February 23, 2012

Science/geology
Why does the Red River flow north, and the Mississippi River flow south?? I think it has something to do with elevation.. but I'm not sure.
February 22, 2012

Science/geology
@ Ms.Sue. I know the map directions have to influence on how the river flows... that's not what I'm asking.
February 22, 2012

Science/geology
Why does the Red River flow north, and the Mississippi River flow south??
February 22, 2012

math
In the annual walkathon, Lee jogs for 5 3/4 miles more than he walks. If he travelled a total of 15 miles, how many miles did he walk
February 21, 2012

Math
Find the smallest values of a and such that 32a = 23b.
February 17, 2012

science
A force of 2000N is used to push a box up an inclined plane that is 5m long. If the 100 kg box is raised to a height of 8m, how much work is done against friction? Let g equal 10 m/s2; I need to know how to set the problem up
February 12, 2012

physics
a force of 625 N is used to move an object with 1000N resistance up inclined plane of 2.0 m.What is the length of the inclined plane
February 12, 2012

physics
Calculate the height of the brain above the heart for an animal with an additional blood pressure of 498 mmHg in the heart. Use ρ = 1.057 g/cm3 for the density of blood. ???????
February 6, 2012

spanish
¡Gracias, Senora! Usted siempre es tan amable en ayudarnos.
February 5, 2012

spanish
Thank you--I am sorry for the confusion! Actually the assignment is a bit confusing as to what the end product should be. I am to summarize an actual conversation. I interviewed a friend about her plans for after she finishes school this May. Then I need to write it up but in ...
February 5, 2012

spanish
I want to write sentences about asking people questions. The questions have to do with the future, so in some sense I guess they are hypothetical. I want to know if that means that I use the (imperfect) subjunctive as hypotheticals--I think so, but I want to make sure. For ...
February 5, 2012

Math
A box contains 3 red marbles, 6 blue marbles, and 1 white marble. The marbles are selected at random, one at a time, and are not replaced. Find the probability. P(red and white) Please help me
February 2, 2012

Algebra
I know that I'm suppose to find the y, but I don't know how.
January 29, 2012

Algebra
Find the value of y so that the line passing through the two point has the given slope. (2,y) (4,5) m=5 (m=slope) how do you do this?
January 29, 2012

History
Lauren- yes she answered my first one, the questions are different if you read them carefully.
January 18, 2012

History
How did the writing/poetry influence people in the harlem renaissance?
January 18, 2012

History
Why was the harlem renaissance important for poets and writers?
January 18, 2012

college algebra
Thanks anyway, I found the answer, the -1 is to be multiplied across ALL factors including the numbers on the other side of the =. See ya
January 18, 2012

college algebra
In a radical equation if the negative symbol is in front of the radical should I use -1 to factor out the negative power? And if so do I factor across the = doing BOTH sides? Or just the side the radical is on? Thanks anyone, I've been out of school for 12 years so it is a...
January 18, 2012

algebra
WHAT COULD YOU DO TO THE EQUATION 4xY=32 TO KEEP BOTH SIDES EVEN
January 11, 2012

Calculus
Thanks
January 7, 2012

Calculus
Evaluate the indefinite integral integral sec(t/2) dt= a)ln |sec t +tan t| +C b)ln |sec (t/2) +tan (t/2)| +C c)2tan^2 (t/2)+C d)2ln cos(t/2) +C e)2ln |sec (t/2)+tan (t/2)| +C
January 7, 2012

Calculus
Evaluate the indefinite integral ¡Ò(x-2)^3/x^2 dx
January 7, 2012

Calculus
integration-indefinite Evaluate ¡Ò dx/3(2x-1)^2
January 7, 2012

Calculus
thanks
January 7, 2012

Calculus
The population of a county increases at a rate proportional to the existing population. If the population doubles in 20 years, then the factor of probability is a) 2e^(-30) b)1/2(ln 20) c)ln 2 d)1/20(ln 2) e)ln 20
January 7, 2012

Calculus
Evaluate the indefinite integral
January 7, 2012

Calculus
Evaluate£º ¡Ò dy/(rad£¨4-y^2))=
January 7, 2012

Calculus
Evaluate the indefinite integral
January 7, 2012

Calculus
evaluate ¡Ò (Ln rad(x)) /x dx=
January 7, 2012

Calculus
Thanks
January 7, 2012

Calculus
Evaluate integral sign (x-1/(2x))^2 dx=
January 7, 2012

geometry
Thank you
January 4, 2012

maths
A company hires skilled employees, each working under contract to 35h and paid € 550 a week, others working under contract B 20h and paid € 220 per week. 1. These employees will have to make a total of 370h of work per week and the entrepreneur has a Bugdet weekly &#...
January 4, 2012

Math
Well I got 73.26 but my teacher said not to do it on the calculator.
November 30, 2011

Math
Would 75 be right.
November 30, 2011

Math
Please help ms on this problem 74% of 99
November 30, 2011

math
75+85+90+x/4=85 250+x/4=85 250+x= 340 x=90
November 29, 2011

math
81,__63,__,45,__ 81,72,63,54,45
November 28, 2011

algebra
37.051 is 55.3% of what number. x*.553=37.051 x=37.051/.553 x=67
November 28, 2011

Ethical Decision Making Case Study
This subject interested me so I went to Columbia University's website and found that a physician must notify a health agent and that agent must notify the patient's contacts which would include Paula's friend. I am not sure if this is a universal policy but I ...
November 26, 2011

Math
If you keep using fake names maybe you will get fake answers.
November 25, 2011

ALGEBRA
To figure out the down payment percentage multiply dollar amount by decimal for percent. For example 10% is .10 20% is .20 5% is .05 etc. Then to figure out the amount to be financed subtract the down payment from the original amount. Does this help?
November 25, 2011

chemistry
That is what I figured it out to be.
November 24, 2011

math
PT + 3PT=108 4PT=108 PT=27 FT=108-27=81 27 part-time and 81 full-time
November 24, 2011

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