Friday

September 4, 2015
Total # Posts: 1,187

**physics**

A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 9.00 m/s and her body makes an angle of 71.0° with respect to the horizontal surface of the water. Determine her initial velocity, both magnitude ...
*November 3, 2010*

**statistics**

Scores on the Stanford Binet Intelligence Scale (SBIS) are distributed as normal with a mean of 100 and a standard deviation of 16. Use the probabilities under the Normal Curve to answer the following questions. a. A child scored 84 on the SBIS. What is his z score? -1 b. What...
*November 1, 2010*

**STATISTIC**

Mrs. Carlson has discovered that the students in her class who watch a larger amount of television do more poorly on her exams compared to those who watch a smaller amount of television. Which of the following conclusions can Mrs. Carlson draw? Explain your answer. a. Watching...
*November 1, 2010*

**Chemistry **

I need help with What is the solubility of silver oxide, Ag2O, in a solution buffered at pH 10.50? The Kc for the following equilibrium is 2.0 x 10-8. Express your answer in g/L Ag2O(s) + H2O(l) ¡ê 2Ag+ (aq) + 2OH- (aq)
*October 25, 2010*

**college**

Organic chemistry question. I need help with a couple of questions on organic groups. What are some products that contain: Alkynes, Aromatic (benzene), Ethers, Aldehydes, Ketones, and Acids. I also need to know some of the harmfull effects that each one of them can cause.
*October 24, 2010*

**physics**

h=49.62m 49.62m-11m for the wall clear of the top = 38.62 4.9 its from multiplying 1/2(-9.8m/s^2) 1/2(ay)
*October 24, 2010*

**bilogy**

paper explaining how the organism in the diagram has evolved physiologically to become suited to its environment. Make sure to reference the diagram you located in your paper.
*October 20, 2010*

**HELP**

I run I jump I am one of four you find me hanging around your door
*October 17, 2010*

**Phyics**

It is it physical science and the equations nedd to be balanced.... it just how the format is on the computer
*October 16, 2010*

**physics**

Four people, each with a mass of 72.7 kg, are in a car with a mass of 1110 kg. An earthquake strikes. The driver manages to pull of the road and stop, as the vertical oscillations of the ground surface make the car bounce up and down on its suspension springs. When the ...
*October 16, 2010*

**algebra**

-63 +15s = 14s + 18
*October 14, 2010*

**Probability**

Are theses correct: A 25 percent B 12 percent C 26 percent And, I have no idea how to get D
*October 14, 2010*

**Probability**

A survey finds that 38% of kids like tv, 24% like radio, and 13% like both. A.Find percent of kids that like tv but not radio. B.Find the percent of kids that like neither tv or radio. C.Find the percent of kids like either tv or radio D.Find the conditional probability that a...
*October 14, 2010*

**Math**

A survey finds that 38% of kids like tv, 24% like radio, and 13% like both. A.Find percent of kids that like tv but not radio. B.Find the percent of kids that like neither tv or radio. C.Find the percent of kids like either tv or radio D.Find the conditional probability that a...
*October 14, 2010*

**world history**

Herodotus (c. 450 BC) I am needing help ansering a few question I can not locate an answer to. How is a colonizing expedition planned and organized and who goes on it? Do the variant stories recorded by herodotos disagree? What is the political organization/government of this ...
*October 12, 2010*

**English**

I need to write an essay on "What are rules for our everyday Life, and why do we have them". It also needs to include why some people love rules and others destest them. I am looking for help with a list of rules for everyday life.
*October 10, 2010*

**algebra**

the time that a traffic light remains yellow is 1 second more than 0.05 times the speed limit. what is the yellow time for a trafic light on a street with a speed limit of 30 mi/h?
*October 9, 2010*

**Math **

i times them by 4 and 5 as you said and got 20x + 12y = 123 21x + 12y = 246ã2 added together 21x = 123+246ã2 is this right and if so can you help me get the next parts as i have tried but cant figure it out thanks
*October 2, 2010*

**Math **

Simultaneous equation and surds 5x-3y=41 (7route2)x+(4route2)y=82
*October 2, 2010*

**computers**

With newer Linux kernel distributions, what happens if you connect a hot-swappable device, such as a USB drive, containing evidence?
*September 29, 2010*

**6th grade**

what is the given value of the variable a+4 diveded by 8 a=3.75
*September 23, 2010*

**Algebra--Math matePlease help**

Homework Help Forum: Algebra-Please help-I'm confused Posted by Tom on Tuesday, September 21, 2010 at 8:09pm. This deals with quadratic functions-If I have a graph with h = (-5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-...
*September 22, 2010*

**Physics**

HELP! I'm doing a webassign, and am completley lost on these problems. If you could help with any, that would be great. A crate weighing 9.40 103 N is pulled up a 36° incline by a force parallel to the plane. If the coefficient of kinetic friction between the crate and...
*September 22, 2010*

**Algebra-Please help-I'm confused**

There wasn't anymore. They show an upward parabola graphed with vertex h=(-5) and K=(-5) and they ask what is the translation in terms of h and k of the following graph. Possible answers: h=5, k=5 h= -5, k=5 h= -5 and k=-5 h=5 and k= -5 That's why I asked do I just ...
*September 21, 2010*

**Algebra-Please help-I'm confused**

This deals with quadratic functions-If I have a graph with h = (-5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-5,3} Do you take the opposite of the number when it is transalated from the graph or do you only take the opposite...
*September 21, 2010*

**Algebra**

This deals with quadratic functions-If I have a graph with he = (-5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-5,3} Do you take the opposite of the number when it is transalated from the graph or do you only take the ...
*September 21, 2010*

**Algebra II**

This deals with quadratic functions-If I have a graph with points h=-5, k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-5,3}
*September 21, 2010*

**physics**

Consider again the problem of a car traveling along a banked turn. Sometimes roads have a "reversed" banking angle. That is, the road is tilted "away" from the center of curvature of the road. If the coefficient of static friction between the tires and the ...
*September 21, 2010*

**physics**

I DONT KNOW WHAT IM DOING WRONG!!!!!!NASA has built centrifuges to enable astronauts to train in conditions in which the acceleration is very large. The device in the figure below shows one of these "human centrifuges." If the device has a radius of 8.3 m and attains...
*September 21, 2010*

**physics**

No, How many seconds in advance would a plane traveling 200 km/hr need to drop supplies to his a target 110 meters below before they were over it?
*September 21, 2010*

**physics**

plane traveling 200 km/hr with supplies for people 110 meters below. how many second before do they have to drop the supplies
*September 21, 2010*

**Physics**

A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)? (b) What ...
*September 21, 2010*

**physics**

A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)? (b) What ...
*September 20, 2010*

**Finance**

I need to write an essay on if I think producing more money will help or hurt my local economy. The essay needs to clearly state the reasons behind my theory on how much money I should produce for my economy. It also needs to have one internet site that supports my thought ...
*September 18, 2010*

**maths**

174.4
*September 18, 2010*

**Economics**

I need to complete a project based on fiat money. I need to design my own money and decide what amount of bills and/or money I want to produce for my economy. I understand that producing more money causing inflation, but I need to know: How much money I should intially produce...
*September 17, 2010*

**physics**

In the movie"Speed" the bus jumps a bridge.Given that the bus is traveling at 31 meters/sec,and the distanceis 15 meters, and the timeis.48 seconds,what is the minium angle required for the bus to reach the distance?
*September 16, 2010*

**business**

Some of the more common, legal vehicles used for asset protection include corporations, partnerships and trusts. If you own a professional practice or business, your risk of loss and liability for claims is particularly high, making this type of business a dangerous asset. ...
*September 16, 2010*

**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*

**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*

**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*