Monday
May 2, 2016

# Posts by Catherine

Total # Posts: 395

English
The question ask us to analyze this quote, "We've got all the time in the world." What does this mean? How do you explain it?
February 28, 2012

math
February 28, 2012

Math
Well, tell him this. A '360' is a skateboarder turning around in a circle in the air, right? tell him to imagine this skateboarder turning in a circle, but slice his movement into 4 sections, so each part of a turn looks like a quarter of a circle. Each section is one ...
February 28, 2012

child care
children should not be served drinks in containers made of a( Styrofoam c) treated ceramic B) uninsulated d) stainless steel
February 26, 2012

Physic
Two charges of equal magnitude of 2C and mass of 1.0 g are separated by a distance of 3 mm. Find the velocity of one particle when they are separated by a distance of 4mm.
January 31, 2012

chemistry
What is the concentration (m) of a solution that consists of 48 grams of copper (2) acetate dissolved in 645 mL of solution?
December 20, 2011

Geometric Proofs
how to place information to get answer of geometric mean of 25.4, 9, 16, 4.25, 8.11, 19?
December 13, 2011

statistics
Write the null and alternative hypotheses. Justify which is the claim. A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is less than 900 hours
December 9, 2011

Physics
1000 N man walks across an 8 meter plank that is suspended from two ropes(one on each side of the plank) that can only support 400N where will the man be when the plank breaks?
November 7, 2011

1. summary 9. voluntary For 3-8, think of the relationship between the first 2 words, then apply that relationship to the last 2 words. For number 3, start and begin are synonyms. Find a synonym for finish, which is conclude, and there you have it! A complete analogy! Do the ...
November 7, 2011

English 10
Ca you at least tell us what the question is asking for? What key event are they taking about? And in the story's don't really tell us what there response was after that important event, so what do we do? What i'm trying to say is can you please explain the ...
November 3, 2011

Economics
Total cost and total variable cost are parallel, yet average total cost and average variable cost are not parallel. a. Demonstrate mathematically that ATC and AVC are not parallel. b. Show mathematically that when both ATC and AVC are falling, ATC falls faster than AVC, and ...
October 31, 2011

Economics
Consider the production function Q= 20K^(1/2)L^(1/2). The firm operates in the short run with 16 units of capital. a. The firm's short-run production function is Q=? b. The average product of labor function is AP=? c. The marginal product of labor function is MP=? d. Show ...
October 31, 2011

Economics
Total cost and total variable cost are parallel, yet average total cost and average variable cost are not parallel. a. Demonstrate mathematically that ATC and AVC are not parallel. b. Show mathematically that when both ATC and AVC are falling, ATC falls faster than AVC, and ...
October 31, 2011

I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. For the ...
October 30, 2011

October 30, 2011

Statistical significance test
I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. For the ...
October 30, 2011

Calculating Chi Squared
did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. For the ...
October 30, 2011

Calculating Chi Squared
I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. For the ...
October 29, 2011

Statistical significance (Chi squared)
I just want to make sure what I'm calculating this right. The data I got for one time point are 6 and 23 I know the equation for chi^2 is Calculating Chi Squared - Catherine, Friday, October 28, 2011 at 8:15pm I did a biology experiment where I need to analyze the ...
October 29, 2011

Calculating Chi Squared
I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. For the ...
October 28, 2011

Calculating Chi Squared
I did a biology experiment and I have to use the chi^2 method to calculate statistical significance. I got data at different time points and I just want to make sure what I'm calculating this right. The data I got for one time point are 6 and 23 I know the equation for ...
October 28, 2011

Statistical significance
I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. Forthe ...
October 28, 2011

Statistical significance
I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. Forthe ...
October 27, 2011

Statistical significance
I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light wavelength. Forthe ...
October 27, 2011

english
I need to do a summary paragraph on a ediorial in a newspaper or magazine .and i dont were to start in writing the paragraph and the subject i choose waw sex,slavery in america on one girls nightmare
October 10, 2011

math
1500 and 1800
October 5, 2011

algebra
2(a-4)=-2 a-4=-1 a=3
October 2, 2011

Biology
explain the progression of the atmosphere from prebiotic to its current makeup
October 2, 2011

arithmetic
State whether the following sequence is arithmetic, geometric, or neither. 10, 10.25, 10.50625, 10.76890625, .... (Points : 1) arithmetic sequence geometric sequence neither
October 2, 2011

math
A store mixes Kenyan Coffee worth \$11 per Kilogram and venezuelan coffee worth \$14 per Kilogram. The mixture is to sell for \$12 per kilogram. Find out how much of each should be used to make a 396-Kilogram Mixture
September 27, 2011

Ciollege algebra
Suppose that X liters of 38% acid solution are mixed with y liters of a 42% solution to obtain 100L of a 39% solution. One equation in a system for solving this problem is x+y=100. Which one of the following is the other equation? A. 42x+38y=0.39*100 B 0.38x+0.42y=0.39*100 C. ...
September 27, 2011

math
Simplify and write each variable as an expression with positive exponents: ((-24x^9)/(8b^7))^4 = c((x^m)/(b^n))
September 21, 2011

Math
Jake is planning to fence his garden. His garden is 10 feet long and 5 feet wide. What is the amount of area Jake wants to fence? Is this a perimeter or area question? That's all I need.
September 18, 2011

Calculus
Yes, you are right Thanks, I just found it! =)
September 15, 2011

Calculus
Please help? Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).
September 15, 2011

Calculus
Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).
September 14, 2011

English
September 11, 2011

Mechanics
A tension test was performed on a steel specimen having an original diameter of 12.5 mm and gauge length of 50 mm. Using the data listed in the table, plot the stress–strain diagram, and determine approximately the modulus of toughness. Use a scale of 20 mm-50 MPa and 20 ...
September 10, 2011

Calculus
Sorrr, I didn't ask what to find. I have to Find the formula for F(a).
September 10, 2011

Calculus
Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis).
September 10, 2011

Calculus
Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find a formula for F(a).
September 9, 2011

Math
what algebra
September 4, 2011

Geography
I didn't find much... But I did find the Balcones Escarpment! Is that right?
August 30, 2011

Geography
What are some major landforms by Wichita Falls, Texas?
August 30, 2011

math
I think it's 44 if you mean add the 2 digits together to get the summ.
August 24, 2011

MATH HELP!!!!!!! :(
This is a riddle, and I'm supposed to find a 5-digit number from it..... My thousand's digit is the first that is perfect, but if you're not happy with that, it's also the product of the first two primes. My units digit is the odd of those two primes, and if ...
August 24, 2011

Coordinate system
XComplete the table of values for the equation 8x+2y=80 xy 0? ?0 2? that is what I got so far, please help me get the rest
July 19, 2011

Linerar Equations in 2 Variables
Complete the ordered pair for the equation y=-10x+18 I have one of the ordered numbers given to me by my instructor, I have to come up with the first one, this is excactly hwo he gave it to me, but I really dont understand this...Can someone please help me understand it better...
July 19, 2011

Basic Algebra
A new cruise ship line has just launched 3 new ships: the Pacific Paradise, The caribbean paradise, and the mediterranean paradise. The carribean paradise has 32 more deluxe stateroooms than the pacific paradise. The Mediterranean paradise has 37 few deluxe staterooms than ...
July 16, 2011

Basic Algebra
Thanks for the help :)
July 16, 2011

Basic Algebra
solve the equation m, and check the solution: 5/6x-1/5x+4=7/10x
July 16, 2011

Basic Algebra
solve the equation: 16((3x+7)=4(12x+8)
July 16, 2011

Basic Algebra
solve. Cx+Hy=M, for x
July 12, 2011

Basic Algebra
A box to hold pencils measures 5.8 inches by 5 inches by 4 inches high. Find the volume of the box.
July 12, 2011

Basic Algebra
if 5 is added to a number and the sum is tripled, the result is 27 more than the number. Find the number
July 10, 2011

Basic Algebra
solve the equation & check your solution: 2/5x-9/25x=5
July 9, 2011

Basic algebra
Solve the equation: 3(-2x+1)=-5(x+1)
July 9, 2011

Basic Algebra
I have to solve the following equation and check my work. Not sure how to do this if someone oculd help me out. The problem is (17b-5)-8(2b+4)=-6
July 9, 2011

Basic Algebra
I am having a hard time trying to figure out this problem, if someone could help me...I'd appreciate it: I have to solve the problem 7x-(6x+4)=4
July 9, 2011

trig
find the least positive value of @. sec (4@+10)cos(3@+17) @=theta
May 23, 2011

Isabella drops a chunk of iron of mass m from the roof of her high school and it accelerates at g. Then she ties two chunks of iron together of mass 2m. Show that when she drops the double chunk, the acceleration of fall is also g. Thank you :)
May 15, 2011

Science
What two major factors determine the size of a star? Is it a) Gravity and Mass OR b) The force of gravity pulling in trying to make the star as small as possible and the outward pressure from the radiation generated in the core trying to swell it up. Thanks :) Because I'm ...
May 14, 2011

Science
By what factor would your weight change if the earth's diameter were doubled and its mass were also doubled? Thanks :)
May 14, 2011

Science
What are two competing effects that determine the size of the star? Please keep the answer short and thank you.
May 14, 2011

Physics
Just wanted to thank you for answering all my questions even though I was clearly lost during most of this process... I finally got it... Thanks =D
May 8, 2011

Physics
Sorry for reposting this but I'm still confused with the last part... You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International ...
May 8, 2011

Physics
So is the period 8222 s? I still don't get why the ansser for the aphelion is wrong...
May 8, 2011

Physics
Sorry for reposting this but I'm still confused with the last part... You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International ...
May 8, 2011

Physics
Sorry for reposting this but I'm still confused with the last part... You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International ...
May 8, 2011

Physics
For a scene in a movie, a stunt driver drives a 1.50x10^3 kg SUV with a length of 4.35 m around a circular curve with a radius of curvature of 0.333 km. The vehicle is to be driven off the edge of a gully 10.0 m wide, and land on the other side 2.96 m below the initial side. ...
May 8, 2011

Physics
You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International Space Station. Due to mishandling of units by a technician, you find yourself...
May 8, 2011

Physic
A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?
May 7, 2011

Physics Question
Here is a demonstration Pascal used to show the importance of a fluid's pressure on the fluid's depth : An oak barrel with a lid of area 0.17 m^2 is filled with water. Along, thin tube of cross-sectional area 4.7×10−5 m^2 is inserted into a hole at the ...
May 7, 2011

Physics
I'm sorry, I don't understand, you mean this equation: P = 2pi sqrt[R^3/(GM)] won't a be 12,345?
May 7, 2011

Physics
Thanks, I now get 5481 seconds for the period, then I have to multiply that by 1.5 right? I get 8222 s When you say substitute a for R, you meant for the equation of the aphelion?
May 7, 2011

Physics
I must be doing something wrong because I typed the answers for a second time and they are wrong, I have only one attempt left, can you please check what I did wrong? For the period what I did was P = sqrt(R^3(4pi^2)/GM) P = sqrt ((6720^3(4pi^2)/(6.674E-11(5.9742E24))) P = 0....
May 7, 2011

Physics
You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International Space Station. Due to mishandling of units by a technician, you find yourself...
May 7, 2011

Physics
I must be doing something wrong because I typed the answers for a second time and they are wrong, I have only one attempt left, can you please check what I did wrong? For the period what I did was P = sqrt(R^3(4pi^2)/GM) P = sqrt ((6720^3(4pi^2)/(6.674E-11(5.9742E24))) P = 0....
May 6, 2011

Physics
So will the aphelion be the perihelion + 2a = 31,410 km?? In order to calculate the period, won't I need the velocity?
May 6, 2011

Physics
I'm sorry, you are right, I omitted some words, here is the question: You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International ...
May 6, 2011

Physics
You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International Space Station. Due to mishandling of units by a technician, you find yourself...
May 6, 2011

Social Studies
Oh....... true. Thanks!!
May 4, 2011

Social Studies
Um..... I thought it was because he was the symbol of preventing wildfires, but I thought it had to be bigger than that. I know he is trying to promote stopping wildfires to save our ecosystem, but the popularity question confuses me. I mean, I pretty much know, but I can'...
May 4, 2011

Social Studies
Why has Smokey the Bear been popular for so long? What does he try to promote?
May 4, 2011

Physics
A beam, B1, of mass M1 = 0.6887 kg and length L1=1 m is pivoted about its lowest point at P1. A second beam, B2, of mass M2=0.200 kg and length L2=0.200m is suspended (pivoted) from B1 at a point P2, which is a horizontal distance d=0.550, from P1. To keep the system at ...
May 2, 2011

MGT 330
Extrinsically motivated
May 1, 2011

A planet is in circular orbit about a remote star, far from any other object in the universe. Which of the following statements is true? a. None of the other statements are true. b. There is only one force acting on the planet. c. There are two forces acting on the planet and ...
April 30, 2011

Ohh.............. Thanks! i get it!
April 15, 2011

Ok, I figured this out (I think) but can you please check? Don't worry. I can carry the tent all by myself because it is so light. I do not even need a lantern it is so light outside. In these sentences, the word "light" is used as a: A:homophone B:homonyme C:...
April 15, 2011

Calculus (urgent!!)
A particle moves with its position given by x=cos(2t) and y=sin(t), where positions are given in feet from the origin and time t is in seconds. A)Find the speed of the particle. Speed = ____________ (include units) B)Find the first positive time when the particle comes to a ...
April 15, 2011

Calculus (pleas help!!!)
Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization tracing ...
April 15, 2011

Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization tracing ...
April 14, 2011

Calculus (urgent!!)
Ok..I found the problem with my first part, I accidentally typed cost(t)^2... Ok I'm still stucked with the last two parts, I don't know what to do with them....
April 14, 2011

Calculus (urgent!!)
A particle moves with its position given by x=cos(2t) and y=sin(t), where positions are given in feet from the origin and time t is in seconds. A)Find the speed of the particle. Speed = ____________ (include units) B)Find the first positive time when the particle comes to a ...
April 14, 2011

I typed 0 for the time, since it was at (0,1) when it started, and slected yes for part c, I have part A and B wrong, I don't know how to write the intervals from part A and I didn't see any counter-clockwise motion... please explain...
April 14, 2011

Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization tracing ...
April 14, 2011

Calculus
What I thought that I had to do was to take the derivative, (2/x)/2x and then plug in 2... and that's how I got 1/4, but that's not the answer, what do I have to do?
April 13, 2011

Calculus
I thought that it was 1/4 but that's now the answer....
April 13, 2011

Calculus
Find the limit: lim x-> 2 ln(x/2)/ (x^2−4) Can someone help me with this?
April 13, 2011

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