Sunday

February 7, 2016
Total # Posts: 327

**physics**

A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume that the ...
*October 19, 2010*

**physics**

A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume that the ...
*October 19, 2010*

**physics**

A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume that the ...
*October 19, 2010*

**physics**

A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 12.0 m/s when the hand is 2.40 m above the ground.
*October 13, 2010*

**math/2nd grade**

16 is greater then 24 .
*October 13, 2010*

**Chemistry**

how much kj of heat are required to vaporize 42.8 grams of c3 h10 o (deltaH vap=26.5 kj/mol)
*October 9, 2010*

**english**

Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. In this sentence i need to know what part of speech these words or phrases are: four, and seven, ago...
*September 30, 2010*

**Math**

Please help... What is the principle of powers? When solving a radical equation how do we use the principle of powers to eliminate radicals
*September 14, 2010*

**Algebra**

2. Use the Pythagorean Theorem to solve the following: A. A baseball diamond is a square of 90 feet on each side. How long is a throw from first base to third base? B. The bottom of a 25 foot plank is placed approximately 7 feet from the side of a barn. Approximately how far ...
*September 12, 2010*

**12th grade - Math**

P(x) = 3x^3 - 7x^2 - 4x + 2 P(1 + √ 3) =
*September 12, 2010*

**calculus**

Use the Upper Bound theorem to find an integral upper bound and the Lower Bound Theorem to find an integral lower bound of the zeros of the function. 3x^4 - x^3 - 8x^2 - 3x - 20. This is one of the problems from my summer review and I can't find anything on the Upper Bound...
*September 9, 2010*

**trig**

Plot the point and then find three representation of the point (3,2pi/3)
*July 19, 2010*

**High School Chemistry**

Determine the pH of solutions with the following ion concentrations: 1) {H+} = 1.0x10 to the negative 3 M
*July 19, 2010*

**college**

7) Which of the following is true? A. The product P in the marketing mix stands for only tangible merchandise. B. The product P in the marketing mix stands for only physical goods. C. The product P in the marketing mix stands for both physical goods and tangible D. The ...
*July 7, 2010*

**physics**

A 0.50-kg ball is attached to a string of 0.50 m and swung in a horizontal circle with a velocity of 1.0 m/s. What is the centripetal force of the ball?
*July 7, 2010*

**math **

1. In this problem, we analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open market. Often, the demand ...
*June 25, 2010*

**math**

a. Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of ...
*June 11, 2010*

**pre-calculus**

If (1)(2) + (2)(3) + ... n(n+1) = n(n+1)(n+2)/3 complete the inductive step of its proof: 1(2) + 2(3) + ... k(k+1) + (k+1)(k+2) I have no idea what to do.
*June 10, 2010*

**Pharmacy**

answer is d. auxiliary information
*June 7, 2010*

**algebra**

In 1990, the life expectancy of males in a certain country was 62.1 years,1996 it was 65.3 years. Let E represent life expectancy in year T and let t represent the number of years since 1990. E(t)= [ ]t+[] use the function to predict the life expectancy of males in 2006. E(16...
*May 26, 2010*

**algebra**

In 1990, the life expectancy of males in a certain country was 62.1 years, it was 65.3 years. Let E represent life expectancy in year T and let t represent the number of years since 1990. E(t)= [ ]t+[] use the function to predict the life expectancy of males in 2006. E(16)= [ ]
*May 26, 2010*

**math**

In 1990, the life expectancy of males in a certain country was 62.1 years, it was 65.3 years. Let E represent life expectancy in year T and let t represent the number of years since 1990. E(t)= [ ]t+[] use the function to predict the life expectancy of males in 2006. E(16)= [ ]
*May 26, 2010*

**math**

In 1990, the life expectancy of males in a certain country was 62.1 years, it was 65.3 years. Let E represent life expectancy in year T and let t represent the number of years since 1990. E(t)= [ ]t+[] use the function to predict the life expectancy of males in 2006. E(16)= [ ]
*May 25, 2010*

**college**

In 1990, the life expectancy of males in a certain country was 62.1 years, it was 65.3 years. Let E represent life expectancy in year T and let t represent the number of years since 1990.
*May 25, 2010*

**physics**

You are pushing a 55 N lawnmower across the the yard. Its handle makes a 55 degree angle with the ground. What force are you exerting on the handle?
*May 25, 2010*

**math**

You need to choose a long distance telephone service for your business. The two options available in your area are Call Me and Trans Talk. Call Me charges a $5.95 monthly service fee and $.08 per minute used. Trans Talk charges a $12.95 monthly service fee and $.05 per minute ...
*May 22, 2010*

**math**

Cleaning up around the kennel you picked up a total of 52 coins. Unfortunately, they were only pennies and nickels. The value of the coins was $1.20. How many pennies and how many nickels did you pick up? Solve using Elimination Method.
*May 22, 2010*

**Physics**

alrite love you man.
*May 1, 2010*

**Physics**

You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that will be approximately...
*May 1, 2010*

**Physics**

You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that will be approximately...
*April 29, 2010*

**Physics**

You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that will be approximately...
*April 27, 2010*

**math**

Do you mean how many single shakes could she make with 3 cups of syrup, then how many double shakes could she make, and how many triples? Or, do you need to mix and match the shake sizes?
*April 14, 2010*

**math**

in math, the word of means times so you would multiply 1/3 x 9 & 2/5 x 25. To set these problems up, you would change the whole numbers (9 & 25) into fractions, so you would have 1/3 x 9/1 for the first one, and 2/5 x 25/1 for the second one. When you line them up on your ...
*April 13, 2010*

**math 4th grade**

for 3/7, it would be the same as saying 3 divided by 7 You would get the answers that Ms. Sue came up with if you did that for each fraction. Then, if you thought of each of those answers as money, it should be easy to put them in order.
*April 13, 2010*

**math 4th grade**

Do you know how to change a fraction into a decimal without using the calculator?
*April 13, 2010*

**math 4th grade**

you can change all the fractions so that they have common denominators (bottom numbers)then compare the numerators (top numbers). Considering you are in 4th grade, I am wondering if the 2nd fraction (3/50) is supposed to be 3/5?
*April 13, 2010*

**algebra**

if you distribute the 6 it would look like this: (6 x 30) + (6 x 7) 6 x 30 = 180 6 x 7 = 42 When you add 180 & 42, you get 222
*April 13, 2010*

**Algebra - 9th grade**

please solve for either x or y: x/2 + y/4 = 7
*April 13, 2010*

**Math**

If you look at these decimals as money (coins) it will probably be easier - you will have to change the 8/10 into 0.80 first I would put that first & the 0.888 last also, you have 0.81 2x in your answer 8/10, 0.81, 0.8181, 0.888
*April 13, 2010*

**AS Maths**

If you start at £18000, and you are given a 6% raise each year, how many years must pass before your salary is at least £180000?
*March 29, 2010*

**chemistry**

how did u get that
*March 15, 2010*

**economics**

How has globalization benefited farmers in lesser developed regions? I can only find evidence that it hurt them. This is for a debate.
*March 2, 2010*

**chemistry**

Calculate the final temperature of 290mL of water initially at 31∘C upon absorption of 20kJ of heat.
*February 17, 2010*

**Accounting**

Question #1 (a) I am working on the adjusting balance sheet. I am close to where I need to be in my adjustments and wondering if I am missing a step to figuring a few things out. If money is earned but not unpaid or recorded for salaries, and the next payday is after the ...
*February 16, 2010*

**climate**

if climate gets warmer what will happen to growing season of crops? what effect could that change have on food supplies?
*February 9, 2010*

**math**

$102.08
*February 2, 2010*

**physics**

Consider the limit on increasing the gravitational force by bringing the masses closer together. The two spheres of osmium cannot have their centers closer than the sum of their radii, and if the radii are made smaller, the masses decrease. To what power of the radius r is the...
*January 7, 2010*

**physics**

I don't know what that means. Can you explain?
*January 7, 2010*

**physics**

The distance from the center of the earth to a point where the acceleration due to gravity is g/16 is none of the these. 4RE. 3RE. 16RE. 1/4RE.
*January 7, 2010*

**gov/pol/diction**

thank you guys!
*December 30, 2009*

**gov/pol/diction**

filibustering is that a word?
*December 30, 2009*

**word/diction**

did i use ruminate correctly? ...which makes me ruminate if we are also....\ i was going for a word that was similar to wonder
*December 29, 2009*

**grammar**

writeacher do i have to write two that can i just write one before the not only?
*December 28, 2009*

**grammar**

is this sentence gram. correct? For example, the genocide in Darfur shows not only history repeats itself when unacknowledged, but also progress is at a standstill if we refuse to resolve our conflicts. should i have a THAT before the not only and after the shows?
*December 28, 2009*

**history**

NICE thnk you
*December 24, 2009*

**history**

i want to include that as an example in my college essay but i dont remember it just like which civilization was known for what advnaced thing
*December 24, 2009*

**history**

omg i cant seem to remember im in high school but in middle school we learned about the aztecs and mayans and incas who were the ones that had fascinating city planning like plumbing etc etc.
*December 24, 2009*

**grammar**

is it angry with her or angry at her
*December 23, 2009*

**physics**

For this problem use the Uniform circular motion mode of the simulation. (a) Given the limits on the sliders in the simulation, what is the maximum possible speed that can be achieved in "Uniform circular motion" mode? .25 m/s For the remaining parts of this question...
*December 20, 2009*

**english**

An opinion sentence that uses the word empty?
*December 7, 2009*

**Chemistry**

Ok you have to set it up as a dimensional analysis problem. So it will be (144 tees)(412.50g)/(118.80g) and the answer is 500.
*November 15, 2009*

**Probability**

5/12
*November 15, 2009*

**Chemistry**

We know that zinc,copper can be used to coat Iron. However Iron is not used to coat zinc. Why is it so?
*October 21, 2009*

**Math**

121 / what = 11
*October 20, 2009*

**math**

this problem is killing me
*October 11, 2009*

**essay writing**

A is not the answer. If it was it wouldn't have been marked wrong on my test
*October 8, 2009*

**Political Science**

Any one willing to help with a paper i will offer $
*October 6, 2009*

**per.finance**

What might be the savings goal for a person who buys a five-year CD paying 4.67 percent instead of an 18-month savings certificate paying 3.29 percent? i just do not get this
*October 6, 2009*

**math**

the sume of the consectutive numbers is 600. What is the least of these 3 numbers.
*September 24, 2009*

**biology**

A human cell has 10 ^14 cells and each cell has about 6.4 x 10 ^9 nucleotide pairs of DNA. What is the length, in cm, of double helix that can be formed from the total amount of DNA in a human individual?
*September 17, 2009*

**Accounting**

a. UR b. PE c. AE d. AR e. PE
*July 26, 2009*

**Algebra**

How would you solve this matrices using the Gauss-jordan elimination method? {[-5, 8, 10]} {[5, 8, 4]} {[10, 8, 5]} {[5, 4, 8]}
*May 18, 2009*

**Algebra II**

How would you set this problem up..I know to use A=Pe^rt Larry has $2600 to invest and needs $3000 in 12 years. What annual rate of return wll he need to get in order to accomplish his goal, if interest is compounded continuously?
*May 4, 2009*

**Trig**

sin(70°)cos(10°) − cos(70°)sin(10°)
*April 22, 2009*

**ethics**

Voting for Obama is no better.He has promised change. What Change? What has he done for you lately?By the way, Bush is not responsible for America being in the shape it is.Maybe you need to check out your history a little better.
*March 16, 2009*

**Math**

#3) - this one needs common demoninators -2/7-2 3/5+1 2/7-(-2/5)= -2/7 will become -10/35 2 3/5 will become 2 21/35 1 2/7 will become 1 10/35 -10/35 - 2 21/35 = -2 31/35 -2 31/35 + 1 10/35 is really subtracting and keeping the sign from the higher number (negative here) = -1 ...
*March 15, 2009*

**Math**

just in case you're still stuck on the 2nd & 3rd ones - one more thing to remember: when you add/subtract fractions, they need common denominators #2) (-3)-2.2-9-(-12)= (-3) - 2.2 = -5.2 - 9 - (-12) -5.2 -9 = -14.2 -(-12) *remember the -(-12) is really adding -14.2 + 12...
*March 15, 2009*

**Math**

you have to remember that when you subtract a negative, you really add it - the () were used in your problems to section off numbers 8-(-2/3) would be the same as 8 + 2/3
*March 15, 2009*

**come back bobpursley**

i'm hoping you have my answer - i'm still working on it though
*March 15, 2009*

**math**

i don't have enough names to make those numbers work, but thanks
*March 15, 2009*

**math**

long question-sorry I'm a teacher with study hall 1st period & 3 games in my closet-polled the students to see who would play which game. (The problem on my paper gives names, but I'm just giving numbers.) 5 kids said they would play all 3 games. 5 others said they ...
*March 15, 2009*

**Math: Combinations**

There are 20 points all in one straight line and 15 others in a parallel line. How many possible triangles having these points as vertices can be formed?
*March 4, 2009*

**Agricultural Policy**

Find the price and quantity that will satisfy the condition for static efficiency in the use of water resources given the following demand and supply equations for water: Demand: P=600-Q Supply: P=2+Q
*February 17, 2009*

**college/Agricultural policy**

Find the price and quantity that will satisfy the condition fpr static efficiency in the use of water resources given the following demand and supply equations for water: Demand: P=600-Q Supply: P=2+Q
*February 17, 2009*

**math**

(dy/dx)=X^3/8 - 1/2x^3. what is sqrt( 1+(dy/dx)^2 ) and that multiplied by (dy/dx)
*February 12, 2009*

**math**

Type it in google. They give you enough link.
*February 12, 2009*

**math**

(dy/dx)=X^3/8 - 1/2x^3. what is sqrt( 1+(dy/dx)^2 ) and that multiplied by (dy/dx)
*February 12, 2009*

**math**

need a linear equation for this problem: A car rental company charges a base fee of $25, then an additional $5 for every additional 50 miles thanks
*December 22, 2008*

**Algebra**

thanks
*October 27, 2008*

**Algebra**

1 adult + 2 kids: admission = 8.75 2 adults + 5 kids: adm = 19.75 I have the answer, just need the formula - I guessed and checked (a lot) and got kids' tickets = 2.25 adults' tickets = 4.25
*October 27, 2008*

**Psychology**

Summarize the multi-factorial model and how it relates to the diagnosis of illnesses
*October 26, 2008*

**com 150 week 6**

my topic was to be on literacy in the public education system.
*October 8, 2008*

**rounding decimals**

what is greater5.7 or 5.69
*September 7, 2008*

**math**

How many yards are in 440 meters?
*August 21, 2008*

**Science**

So would the answer be the smallest one means the one that is the least tall?
*August 21, 2008*

**Science**

Write an operational definitoin for each underlined idea in the space provided. The first sentence is.. List the plants found in the ecosystem, with the smallest one first. Smallest one is underlined. So what in wondering is what is an operational definition?
*August 21, 2008*

**Geography**

Which river doesnt cross the Trans- siberian Railway route? - the Ob River - the Amur River - the Ural River - the Dniper River Thanx!!!
*August 8, 2008*

**science**

chemistry help
*June 15, 2008*

**math**

Alright, let's say you want to get from one point to another, in a 3D box. all points have an x, y and z coordinate. Point A has coordinates (25,30,5) while Point B has coordinates (50,26,18). The only given variable other than the coordinates is the speed you are ...
*May 27, 2008*

**Physics**

I have that same exact question I need to answer, but I'm not sure how to answer it because it's not in my text book. :( Help?
*April 15, 2008*