Wednesday

February 22, 2017
Total # Posts: 944

**physics URGENT! HELP**

If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do not reflect negative ...

*November 7, 2012*

**physics**

If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do not reflect negative ...

*November 7, 2012*

**AP Physics**

A 1200 kg car is moving at 33 m/s then has the brakes applied at a deceleration of 6.1 m/s. How far will it move before stopping?

*October 29, 2012*

**Chemistry**

Write a blanaced molecular equation for the reaction 2Na(NO3) + Cu(OH)2. Write complete ionic and net ionic equations?

*October 29, 2012*

**Chemis**

Write a blanaced molecular equation for the reaction 2Na(NO3) + Cu(OH)2. Write complete ionic and net ionic equations?

*October 29, 2012*

**English singluar and plural possessive nouns**

What are some rhyming plural possessive words?

*October 25, 2012*

**2nd grade math**

write the sum.Show the ten-ten-fact you used. 9+7=16 /\ 1 6 10+__=? is it 10+6=16

*October 24, 2012*

**General Chem**

Nitrogen oxide reacts with oxygen gas to form nitrogen dioxide (NO2). In one experiment 0.866 mole of NO is mixed with 0.503 mole of O2. Calculate the number of moles of NO2 produced

*October 12, 2012*

**Math**

What is 71 times 65 in ladder form

*October 7, 2012*

**Chem 105**

If 13.4 kilograms of Al2O3(s), 54.4 kilograms of NaOH(l), and 54.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced?

*October 6, 2012*

**chemistry**

what is the height of the ethyl alcohol that exactly fills a 200.0mL container? the density of ethyl alcohol is 0.789/mL

*October 1, 2012*

**Science**

A hydraulic lift office chair has its seat attached to a piston with an area of 11.2 cm2 . The chair is raised by exerting force on another piston, with an area of 4.12 cm2 . If a person sitting on the chair exerts a downward force of 219 N, what force needs to be exerted on ...

*September 29, 2012*

**Math**

Sophia has $1.00 in coins. 1/5 is dimes. 2/15 are nickels. 2/3 are pennies. How many of each coin does she have?

*September 26, 2012*

**sta luces**

graph -20x-45y=48

*September 18, 2012*

**Math**

All the numbers from 1 to 99 are multiplied together. What is the last digit of the product?

*September 17, 2012*

**chemistry**

jason needs to use 63.5 grams of alcohol that has a denisty of .818 g/ml. How many millilters of the alcohol would jason need?. show work please

*September 17, 2012*

**physics**

An airplane with a speed of 88.0 m/s is climbing upward at an angle of 72.1 ° with respect to the horizontal. When the plane's altitude is 779 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly beneath the point...

*September 15, 2012*

**Math**

Thank you (:

*September 11, 2012*

**Math**

Can you place least to greates ; these numbers 5/6, 0.85, 0.9

*September 11, 2012*

**Science**

stomata is what makes gases it is found on a tree and leaf

*September 10, 2012*

**physics**

356 barrels

*September 8, 2012*

**algebra**

what is 1=2n

*September 5, 2012*

**math**

Find all the possible rational roots of f(x)= 4x^4 - 3x^3 +2x^2 + x -3 f(x) = -3x^3 - 2x^2 + x -1 Thank you so much:)

*September 5, 2012*

**Math, Pre Calc**

Thanks!

*September 5, 2012*

**algebra**

2x^3+7x^2-18x-63

*September 3, 2012*

**math**

54x^5-16x^2

*September 3, 2012*

**math**

2x^3+7x^3-18x-63

*September 3, 2012*

**Chemistry**

Write the net ionic equation for the reaction between sodium chloride and cobalt (ll) nitrate. so far i have... 2NaCl(aq)+ Co(NO3)2(aq)---> NaNO3(aq)+CoCl2(s)

*August 27, 2012*

**math**

65/6.5 equal

*August 27, 2012*

**health**

yes u r right

*August 13, 2012*

**Math**

Christine runs 3 miles in 25 minutes. At the same rate, how many miles would she run in 85 minutes?

*July 31, 2012*

**reading**

Due to his ______ habits, he had a ______ for berating his friends in an effort to bolster his own reputation.

*July 29, 2012*

**geometry**

Find the surface area of a rectangular prism with a height of 11, a length of 15, and a width of 10.

*July 17, 2012*

**Geometry**

The radius of a circle is 7 feet. What is the area of a sector bounded by a 180° arc?

*May 20, 2012*

**pre algebra**

3 1/4 - (3 - 1 5/6) =

*April 30, 2012*

**MATH**

rowan raised $640 in a charity walk last year. This year he raised 15% more than he raised last year. How much money did rowan raise this year? SHOW YOUR WORK.PLEASE HELP ME

*April 25, 2012*

**World History**

Where did freedom come from?

*April 12, 2012*

**Chemistry**

Aluminum sulfate and calcium acetate = ?

*March 29, 2012*

**Chemistry**

how do you show the synthesis of copper (1) chloride?

*March 29, 2012*

**English**

What are some examples of irony that compares and contrasts The Story of an Hour and The Whirligig of life?

*March 28, 2012*

**writing**

i got c am i right plz help me what to u think

*March 28, 2012*

**Business**

How can a financial manager at a non-profit make better use of Web capabilities to enhance the financial position of the organization?

*March 27, 2012*

**Business**

Do you see the job of the non-profit financial manager as getting easier or more difficult in the future?

*March 27, 2012*

**math**

If a rectangular has 54 feet im volume and 6 feet im im length and 3 feet in width what is the height

*March 21, 2012*

**english**

how to start an opening paragrph for explaning what love and infatuation means

*March 10, 2012*

**Administrative Justice**

or do you guys now of a good website that can help me?

*March 4, 2012*

**Administrative Justice**

what do probation officers do during trial and pretrial processes?

*March 4, 2012*

**Math**

You play a game where you win $1.00 for each dot that turns up on a fair die (has 6 sides). You pay $3.50 to play the game (and the money is not returned). Find the expected (average) winnings for this game.

*February 27, 2012*

**Math**

You play a game where you win $1.00 for each dot that turns up on a fair die (has 6 sides). You pay $3.50 to play the game (and the money is not returned). Find the expected (average) winnings for this game.

*February 27, 2012*

**calculus**

yeah u need to review them omg i had a crush on this guy named bryan and he spelled it the same way as you! weird right?

*February 25, 2012*

**Math**

sorry i don't know this crap is outta my head

*February 25, 2012*

**Biology**

Ummmmmmmmmmmmm MAY-be u should ask Watson and cricks model and not some website i have the best advice and u should probably listen now go online and LISTEN TO SOME MINDLESS BEHAVIOR CUSZ THEY R AMAZING!!!!!!!!!!!!!!!!!!

*February 25, 2012*

**social study**

What are some major turning point in vietnamese history leading up to world war 2

*February 22, 2012*

**Chemistry Help Please :)**

The experimental part is that, say we add 4 ml of water, 2 drops of saturated iodine in KI solution.. etc. to the reaction in the introductory paragraph. We are suppose to predict the colour changes in the two phases when each is added to the initial reaction.

*February 12, 2012*

**Chemistry Help Please :)**

I'm stuck on how to do these 4 problems concerning Chemical Equilibriums. When varsol and iodine/pottasium iodide solutions are mixed, the two phases form.. phase A (top) would be pink and phase B (bottom) would be brown. What are the colours in each phases for these 4 ...

*February 12, 2012*

**physics**

A) PE of gravity= m*g*h m=mass of object g=acceleration due to gravity h= distance mass= weight/gravity=4.383 PE=(4.383kg)(9.81 m/s^2)(1.7m) PE=73.095 J

*February 8, 2012*

**chemistry**

A student mixed 75.0 mL of water containing 0.75 mol HCl at 25�C with 75.0 mL of water containing 0.75 mol of NaOH at 25�C in a foam cup calorimeter. The temperature of the resulting solution increased to 35�C. How much heat in kilojoules was released by ...

*February 7, 2012*

**Social Studies**

Ok, so in many ways the relation between China and Japan reflect what we've already seen between Russia and Byzantium. What were the most important things that Japan borrowed from China? Chinese influence in Japan reached its height during the time of Prince Shotoku. What ...

*February 6, 2012*

**Global History**

This concerns the feudal powers in Japan: Ok, so in many ways the relation between China and Japan reflect what we've already seen between Russia and Byzantium. What were the most important things that Japan borrowed from China? Chinese influence in Japan reached its ...

*February 6, 2012*

**Physics**

A car travels 105 km to the north at 65km/hr and then turns around and travels 25km at 80km/hr. What is the difference between the average speed and the average velocity on this trip?

*February 2, 2012*

**Math**

A person invests a total of 22,00 in 2 accounts. 1 investment earned 7% while the other earned 5.5%. The amount of investments earned for one year was $1312. How much was invested in each account?

*January 31, 2012*

**MATH**

DESCRIBE THE ANGLE SUM THEORY AND HOW THE FORMULA WORKS. HELP ME PLEASE I NEED TO STUDY FOR A TEST

*January 30, 2012*

**Math**

frame= 15x * 15x = 225x^2 mirror= pi(r)^2 = pi(25x)^2 area of metal(answer in factored form)=225x^2-(25)pi x2 = 25x^2(25-pi)

*January 26, 2012*

**chemistry**

What is the balanced equation for 0.60M Phosphoric acid and 1.85M NaOH?

*January 24, 2012*

**math**

The area of a rectangle is 24 m2. The length of this rectangle is 6 m. Which equation could be used to determine the width, w?

*January 20, 2012*

**lac english 1 a**

short stories memoirs by ernesto gaarza and rusell baker

*January 14, 2012*

**lac english 1 a**

how are bario boy and no gumtion alike different In what ways are the authors’ choices and depictions related to the subject matter of their stories?

*January 14, 2012*

**Physics**

When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 75 kg man just before contact with the ground has a speed of 6.1 m/s. (a) In a stiff-legged ...

*January 12, 2012*

**shurley grammar**

jjjjjjjjjjjjjjjjjj

*January 11, 2012*

**math**

Suppose t teachers and s students visit the museum for a field trip. The price of a ticket for a teacher is a dollars and the price of a ticket for a student is b dollars. Which of the following expressions represents the cost, in dollars, of 2 teacher tickets and 28 student ...

*January 4, 2012*

**MATH**

Juan makes $6.50 an hour plus an extra $15.25 per week. Last week he earned $47.75. Look at this equation that represents Juan's earnings ;ast week. 6.50h+15.25=$47.75 How many hours did Juan work?

*December 30, 2011*

**math**

Juan makes $6.50 an hour plus an extra $15.25 per week. Last week he earned $47.75. Look at this equation that represents Juan's earnings ;ast week. 6.50h+15.25=$47.75 How many hours did Juan work?

*December 30, 2011*

**Math**

Given the hyperbola[(x+3)^2/4]-[(y-1)^2/9]=1,find the equations of the asymptotes.

*December 15, 2011*

**4t Grade Math**

Please help me write a multiplication sentence for 3X9=

*December 12, 2011*

**physics**

An ice skater glides around a rink at a constant speed of 2 m/s. Is the skater accelerating?

*December 9, 2011*

**science**

music

*December 6, 2011*

**Math**

How do you find the total earnings when given the salary, commission rate, and sales? EX question: $1,ooo plus 6% on sales of 2,000

*November 29, 2011*

**English**

What is the meaning of this stanza? Money maketh festival, Wine she buys, and beds can strow; Round the necks of captains tall, Money wins them chains to throw, Marches soldiers to and fro, Gaineth ladies with sweet eyes: These alone can ne'er bestow Youth, and health, and...

*November 11, 2011*

**4th grade Math**

I need help it the same as what Zack's problem is please and thank you.

*November 3, 2011*

**math - algebra**

f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output value of 5,000?

*November 1, 2011*

**math**

CAN YOU HELP ME ? WHAT ARE THE TWO HAND ON THE CLOCK CALLED. THE LONG ONE AND THE SHORT ONE. THANK YOU ALEXIS LAANG

*November 1, 2011*

**math - algebra**

f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output value of 5,000?

*November 1, 2011*

**math - algebra**

f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output value of 5,000?

*November 1, 2011*

**science**

procedure

*October 28, 2011*

**Calculus**

What is the derivative of -3x((x+1)^1/2)

*October 26, 2011*

**Calculus**

what is the derivative of -3x((x+1)^1/2)?

*October 26, 2011*

**Calculus**

Find the value of the derivative at each indicated extremum.

*October 26, 2011*

**Calculus**

An air traffic controller spots 2 planes at the same altitude converging on a point as they fly at right angles to each other. One plane is 150 miles from the point moving at 450 miles per hour. The other plane is 200 miles from the point moving at 600 miles per hour. At what ...

*October 25, 2011*

**Physics**

You need to divide the diameter by two because the equation requires the radius not the diameter.

*October 21, 2011*

**Algebra**

What is the 20th term in the following arithmetic sequence? 1/2, 1, 3/2, 2

*October 19, 2011*

**Algebra**

In how many ways can a teacher arrange 10 students in the front row if there are 25 total students?

*October 12, 2011*

**Algebra**

Given the hyperbola (x2/4) – (y2/9) = 1, find the equations for its asymptotes A. x = (1/3)y, x = (–1/3)y B. y = (3/2)x, y = (–3/2)x C. y = (1/3)x, y = (–1/3)x D. x = (3/2)y, x = (–3/2)y

*October 12, 2011*

**Math**

3ã20(2ã5-7)

*October 6, 2011*

**Math-Ellipses**

What is the equation of the ellipse with co-vertices (0, 2), (0, -2) and vertices (3, 0), (-3, 0)

*October 6, 2011*

**Math**

Find the focus of the parabola x = –2(y – 3)2 - 2

*October 6, 2011*

**Math**

What is the equation for the parabola with vertex (0, 0) and focus (5, 0)

*October 6, 2011*

**Algebra**

What isthe focus of the parabola y = (1/8)(x – 5)^2 - 3

*October 5, 2011*

**Math**

It goes to the left? Idk.

*October 4, 2011*

**Math**

What is the opening direction of the parabola x = –2y2. A.left B.right C.up D.down

*October 4, 2011*