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September 1, 2014

Posts by tom


Total # Posts: 1,047

math
Show that the set {[2,3],[4,1]} is linearly independent
September 15, 2010

Family life
Give the marriage laws in The state of Georgia.
September 13, 2010

physics
PLease HeLP! You work for a moving company and are given the job of pulling two large boxes of mass m1 = 112 kg and m2 = 287 kg using ropes as shown in the figure below. You pull very hard, and the boxes are accelerating with a = 0.21 m/s2. What is the tension in each rope? ...
September 10, 2010

algebra
First find a common denominator This common denominator will be (x)(x-1) then since the denominator of 5/(x-1) is missing x multiply x to 5 to get 5x. since the denominator of (2-x)/x is missing (x-1) multiply (2-x) with (x-1) to get (2-x)(x-1) Now add the numerators and put ...
September 8, 2010

Physics (Calc Based)
I understand how to solve this problem ,however cannot figure out why the .5 degrees is being converted to radians: PROBLEM: How would one determine the percent uncertainty in theta and in sin of theta for the following: 1) theta = 15.0 degrees +/- 0.5 degrees SOLUTION: f(&#...
September 8, 2010

Physics
280km / 88km per hour = 3.18 hours + 24 minutes = .4 hours + 210km / 75km per hour = 2.8 hours 2.8 hours + .4 hours + 3.18 hours = 6.38 hours Average Velocity = Total Distance / time Total distance = 280 + 210 = 490km 490km/6.38hours =76.8km per hour
September 8, 2010

Physics
Determine the percent uncertainty in È, and in sin È, when (a) È = 15.0° + 5°, (b) È = 75.0° + 5°
September 8, 2010

Spanish
Okay-I think I understand the difference -much appreciated
September 7, 2010

Spanish
What is the difference between asking "De donde eres" or asking "Donde vives?"
September 7, 2010

Spanish
Is there a difference if you say where you live by saying "Yo vivo en Florida" or "Vivo in Florida." I don't get why they say the Yo sometimes and not the other times
September 7, 2010

physics
did you get your answer yet? temotacek at who
September 7, 2010

Family Consumer Science
List Five occupations that a person get other consumer science
September 7, 2010

Algebra
5 sqrt x^20
September 5, 2010

PYP 202
Your instructor asks you to compare positive and negative reinforcement and explain your conclusions in class. What will you report?
September 2, 2010

stoichemistry
4Fe+3o2 =
August 15, 2010

math
7 1/2
August 9, 2010

math
10
August 9, 2010

Web Design
For a friend, I am inspecting a page that contains inline CSS, and I may need to engage in an extensive visual code scan to find the inline CSS I need to review or modify. Please advise on how I might be able to do in the html file to quickly find the inline CSS that might be ...
July 29, 2010

Finance
Both Bond Sam and Bond Dave have 9 percent coupons, make semiannual payments, and are priced at par value. Bond Sam has 3 years to maturity, wheareas Bond Dave has 20 years to maturity. If interest rates suddenly rise by 2 percent, the percentage change in the price of Bonds ...
July 23, 2010

Trig
Hi Kate, I'm an engineer and computer programmer not a mathemetician so these proof things can be tedious and you can spend an awful lot of time going round in circles. I'm not sure why you need to prove that sin(pi/4) = sqrt(2)/2 and you are right, it's very ...
July 22, 2010

molecular bio
do pcr generated luxAB or gel purified luxAB work better in getting white colonies? WHy? please help. thanks
July 21, 2010

physics
In the figure, a stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 2.0 kg, encounters a coefficient of kinetic friction μL = 0.40 and slides to a stop in ...
July 21, 2010

physics
use E = mgh + 1/2 mv^2 = (800 L)(1 kg / 1 L) (9.8 m/s^2) (15m) + 1/2 (800 L)(1 kg / 1 L) (17 m/s)^2 = 233200 J
July 19, 2010

physics
A pump is required to lift 800 liters of water per minute from a well 15.0 m deep and eject it with a speed of 17.0 m/s. How much work per minute does the pump do?
July 19, 2010

u.s history
In a well developed paragraph respond to the following. After reading about yellow journalism, explain how the media may or may not influence American foreign policy? Basically, what affect can the media have on the government’s decisions? Be sure to state specific ...
June 16, 2010

us history
If the 13th, 14th, and 15th Amendments, which were passed almost 100 years earlier, guaranteed that African-Americans had the right to vote, why was legislation such as The Voting Rights Act of 1965 necessary?
June 10, 2010

math
what is the height of a triangle whose sides are 13 , 20 and 21 cm
June 8, 2010

Math
Graph using linear inequality x - y less than or equal to 1
June 5, 2010

Chemistry
76
June 3, 2010

physics
A 6.9 kg bowling ball travelling at 6.4 m/s strikes a stationary 1.4 kg bowling pin. After the collision, the pin flies forward at 6.4 m/s. How much kinetic energy was lost in the collision?
May 26, 2010

english
Many american are liveing beyond their means by abuseing thier credit cards. You concider their credit limit as another sourse of income and charge up to the limit then they had to pay enormous finance charges evry month because they have run their credit cards to the limit. ...
May 17, 2010

11th grade English
Many american are liveing beyond their means by abuseing thier credit cards. You concider their credit limit as another sourse of income and charge up to the limit then they had to pay enormous finance charges evry month because they have run their credit cards to the limit. ...
May 16, 2010

economics (micro)
2. In the table below, assume a monopsonist has the marginal-revenue-product schedule for a particular type of labor given in columns 1 and 2 and that the supply schedule for labor is that given in columns 1 and 3. (1) (2) (3) (4) (5) Number of MRP Wage Total Marginal labor ...
May 3, 2010

Organic Chemistry
Oh alright , it's alcohol right?
May 3, 2010

Organic Chemistry
The following reaction would produce a(n) __________. R-OH + R'COOH →
May 3, 2010

COM 220
Can some one please help me come up with an full sentence outline on same sex marriage (opposing it)
April 29, 2010

6th grade math
14/15-13/16= show work
April 28, 2010

computers
What are authorization rules?
April 27, 2010

fine art
what is the diference between a fine art painting and a picture
April 26, 2010

chemistry
I'm sorry...it's a 0.821-mol sample of a substance..... Thank you
April 22, 2010

chemistry
A 0.821 sample of a substance composed of diatomic molecules has a mass of 131.3g. Identify this molecule. May I have your expert help with this question? Thank you.
April 22, 2010

adult education
what is the total resistance in a circuit having 3 feetof 10 ohm/ft wire, with two 15 ohm resistors wired in parallel?
April 22, 2010

HVAC / Electrical
what is the total resistance in a circuit having 3 feetof 10 ohm/ft wire, with two 15 ohm resistors wired in parallel?
April 22, 2010

English
Wait I do not get this when and whent i look online and it said that whent isn't a word but how do i say something like this: I whent home. or is it I when home. Any i'm no good at past tenses
April 21, 2010

math
factorise 7x^2 - 19x + 10 13x - 20 - 2x^2 28n - 10 + 6n^2 please can you show me the method thanks
April 18, 2010

healthcare
need combining form for midsagittal
April 8, 2010

chemistry
a 150ml sample of wetlands water requires 25.00 mL of a 0.0250 MH2SO4 solution for neutralization. Calculate the molarity of CaCO3 in the sample
April 7, 2010

Chemistry
Thanks so much!
April 5, 2010

Chemistry
That helps. But I still don't understand why we subtract the reactants from the products in one case and when using bonds we subtract the products from the reactants.
April 5, 2010

Chemistry
Why do we have these two equations: ΔH° = ΣD (bond broken) – ΣD (bond formed) and ΔH = Σ ΔHf products - Σ ΔHf reactant I don't understand when we use which one and why? Please help. Thanks.
April 5, 2010

hsm 210
week 8 . need hel getting started with evaluating communication strategies
March 31, 2010

Biology
Glycolitic enzymes are required for glycolysis-energy production. These enzymes G6P dehydrogenase 6PG dehydrogenase are requred for neucleotide and nucleic acid biosyntheses- the restoration of damaged cells (and their DNA) after injury
March 28, 2010

Algebra
thank so much
March 24, 2010

Algebra
There are three consecutive integers the square of the largest one equals the sum of the squares of the two other.Find the integers
March 24, 2010

math
what is the remainder when ka^3-3a^2+5a-8 is divided by a+1. please help and thank you
March 22, 2010

algebra
3 4/9 x 1 4/5 show work please
March 21, 2010

critical thinking
Red herring
March 15, 2010

chemistry
Given 1.115 atm of carbon monoxide reactimg with 1.553 atm of oxygen in a closed container at a constant temperatue, what is the theoretic yield of the carbon dioxide?
March 15, 2010

chemistry
how many grams of solute are in 250ml of 0.500M glycerin . (C3H8O3=92.1 amu)?
March 14, 2010

AP BIO
2. Suppose the DNA molecule were composed of six monomers. In addition to the monomers A, T, C and G, two other monomers, O and P, were present. Furthermore, O and P were known to pair only with each other. Which of following statements regarding this kind of DNA molecule ...
March 14, 2010

AP BIO
1. A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1 micrograms) Cell 2 (5.4 ...
March 14, 2010

Statistics
Calculate the following: a) Determine the sample size necessary to estimate a population mean to within 1 with a 90% confidence given that the population standard deviation is 10. b) Suppose that the sample was calculated at 150. Estimate the population mean with 90% confidence.
March 13, 2010

Statistics
Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.
March 13, 2010

Statistics
Draw the operating characteristic curve for n = 10, 50, and 100 for the following test: Ho: ì = 400 Hi: ì > 400 á = .05, ó = 50
March 13, 2010

Statistics
HO: µ = 70 H1: µ > 70 ó = 20, n = 100, xbar = 80, á = .01 a) calculate the value of the test statistic b) set up the rejection region. c) determine the p-value d) interpret the results
March 13, 2010

statistics
A statistics practitioner would like to estimate a population mean to within 50 units with 99% confidence given that the population standard deviation is 250. a) What sample size should be used. b) Repeat part (a) with a standard deviation of 50. c) Repeat part (a) using a 95...
March 13, 2010

Auditing
8 d
March 11, 2010

pre-calculus
Graph each complex number. Then express it in rectangular form. 2(cos(4pi/3) + isin(4pi/3)) I don't understand where to go from here.
March 9, 2010

calculus
Evaluate lim as x-> 0 square root (x+1) - square root (2x+1) / square root (3x+4) - square root (2x+4)
March 7, 2010

Math
What is the fromula to calculate the volume of a washer?
February 19, 2010

quick precal concept
is there no solution for a triangle with C=50deg a=25 c=22?
February 18, 2010

mth 157
Determine which types of display could be used to illustrate the given data. 4) The midterm test scores for the seventh-period typing class are listed below. 85 77 93 91 74 65 68 97 88 59 74 83 85 72 63 79 Which of the following types of display could be used to illustrate ...
February 15, 2010

mth 157
Drawing one slip, what is P (slip contains a vowel)?
February 11, 2010

biology
what are some of the ways in which we can differentiate spores from coccus shaped bateria?
February 10, 2010

biology
what are three function of a teeth
February 7, 2010

biology
what are three function of a teeth
February 7, 2010

biology
what are three function of teeth
February 7, 2010

Biology
Can you give the speed in the capillaries as a percentage of the speed in the arteries.
February 6, 2010

Biology
Why is it desirable for blood to flow through the capillaries comparratively slowly.
February 6, 2010

Biology
Is there an experiment which you could do to test the suggestion that veins have more stretchable walls than arteries.
February 6, 2010

Biology
Is there an experiment which you could do to test the suggestion that veins have more stretchable walls than arteries.
February 6, 2010

Biology
Why veins contain valves.
February 6, 2010

Biology
Why capillaries have very thin walls.
February 6, 2010

physics
113.5
February 5, 2010

Language
How do I set up a comparsion table for two stories
February 3, 2010

math
Solve the inequality and show the number line. x + 29 < 33 for x > 0
February 2, 2010

Biology
Why arteries have more muscle in their walls than veins
February 2, 2010

Biology
Why the left ventricle has a thicker more muscular wall than the right ventricle.
February 2, 2010

Biology
Why the right atrium is larger than the left atrium.
February 2, 2010

Biology
Why does the blood pressure goes up and down all the time.
February 2, 2010

Can't understand trig problem
Your answer is right
February 1, 2010

Carpentry
Parts of a concerte block
January 31, 2010

cjs 250 Intro to security
if a church has no security plan in place, what would be a less pertinent component for that particular environment during a vulnerability assessment?
January 29, 2010

FDA
whats the FDA's main job has it Has it implemented any new rules recently?
January 18, 2010

Politics
When and why was The FDA formed? Was it in response to a national event or some sort of emergency?
January 17, 2010

carpentry
how to install a lock
January 15, 2010

religous
from the 4 theories which is least likly to bene fit from wining the lottery and why
January 15, 2010

Religious
Explain the concept of hedonism an how is this concept seen as the dominant theory in our society today.
January 15, 2010

Religious
why is the concept of determism often regarded as more important than christianity.
January 15, 2010

Accounting
North Pole Cruise Lines issued preferred stock many years ago. It carries a fixed dividend of $6 per share. With the passage of time, yields have soared from the original 6 percent to 14 percent (yield is the same as required rate of return). A. What was the original issue ...
January 10, 2010

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