Sunday

December 11, 2016
Total # Posts: 1,144

**Physics**

A mechanic pushes a 3.6 multiplied by 103 kg car from rest to a speed of v, doing 4600 J of work in the process. During this time, the car moves 27.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v m/s (b) the horizontal force exerted ...

*October 24, 2010*

**math**

Suppose you drop a ball from the top of a five-story building onto the sidewalk 70 feet below. a. What is the initial velocity of the ball? b.Determine a function for the height of the ball t seconds after it's released. c. How long will the ball be in the air before it ...

*October 13, 2010*

**physics (force table)**

In a four force case, could the ring ever be in equilibrium if all four pulleys were placed in quadrant one?

*October 10, 2010*

**Reading **

I need a sentence for keening.Please help me.

*October 9, 2010*

**Scarlet Letter - essay - Thesis help**

ok thanks:)it great

*October 9, 2010*

**Scarlet Letter - essay - Thesis help**

ok thanks New Thesis: Hawthorne stressed the sin by stretching the idea of sin and making the letter A seem as if it is a mystical character itself, and allowing the letter(sounds a little weird, should I put "sin" instead?) to be able to physically harm and hinder ...

*October 9, 2010*

**Scarlet Letter - essay - Thesis help**

So I am writing about how I agree with this one critic that Hawthorne over used symbolism in the book the Scarlet Letter. My thesis: He stressed the sin by stretching the idea and making it seem like it is a mystical character itself, and allowing it to be able to physically ...

*October 9, 2010*

**Physics**

10 west

*October 6, 2010*

**11th grade Algebra**

A number is multiplied by -3 and then this product is decreased by 7. The result is 4 less than twice the opposite of the number. what is the number?

*October 3, 2010*

**Referents**

Give referents for the following: 1cm square = area of fingernail 1 inch square = ? could it be an area of a dice 1 metre square = ? could it be a picture frame? I don't know what referents to use for those two.

*September 30, 2010*

**Science**

Imagine that a group of factories and power plants lies 200 kilometers to the west of a forest where the trees are dying. Describe three steps in a process that could be causing the trees to die.

*September 18, 2010*

**science**

why are dust particles and other particles necessary for percipitation?

*September 16, 2010*

**CSN**

identifying three challenges that might arise when writing a paper.

*September 15, 2010*

**European History**

Can someone please describe the geography of Europe to me or give me a place that I can read on it. I need to answer a question that asks what the disadvantages of Europe's geography are. Thanks

*September 13, 2010*

**drama**

Any ideas for a funny parody fairytale - good still winning over evil? I also need to make a role play out of this, so any ideas to do with plays are greatly appreciated.

*September 13, 2010*

**english**

thanks

*September 10, 2010*

**english**

It's a part of an assignment i'm doing, is a shower a part of technology? Could you also give me examples of technology we use in everyday life?

*September 10, 2010*

**business mathematics**

What are the financial costs to a business owner who receives a bad check?

*September 9, 2010*

**Maths**

( 22 ears ) ( 1000 / acre ) ( 700 kernels / ear ) ( 1 bushel / 90,000 kernels ) = 170 bushels / acre

*September 5, 2010*

**algebra2**

what do you call it when someone pays back a loan quickly??

*August 29, 2010*

**Spanish **

State whether the article is used or omitted and give examples: 1. with no existe and an unmodified noun. 2. with haber in the negative or interrogative 3. to say "a so-called" 4. With convertirse and a modified profession 5. with millon 6. with otro

*August 29, 2010*

**AP Spanish **

Write the definitie article (if necessary). Use parenthses if the article is optional. 1. Aprendo _____ japones. 2. _____ Africa es grande. 3. Esta en _______ carcel. 4. Que es _____ quimica? 5. Come ____ almuerzo.

*August 29, 2010*

**Chemistry**

The explanation is poor try putting up the answer ! So people can see the way to proably do it!

*August 27, 2010*

**math**

Identify the property of multiplication of whole numbers that is illustrated in the following. 3 * 1 = 3

*August 18, 2010*

**Statistics**

15/19 = 0.79

*August 2, 2010*

**teachers????**

Ok thank you for the info. Yes I see the response now. Thanks

*July 31, 2010*

**teachers????**

what time do you quit helping on line?? I posted a question???

*July 31, 2010*

**teachers????**

I was wondering the same thing???? I got online last night about the same time and never got anyone to answer????

*July 31, 2010*

**xacc 280**

At October 31, Nathan Company made an accrued expense adjusting entry of $1,400 for salaries. Prepare the reversing entry on November 1, and indicate the balances in Salaries Payable and Salaries Expense after posting the reversing entry. can someone tell me if this is the ...

*July 31, 2010*

**XACC 280**

At October 31, Nathan Company made an accrued expense adjusting entry of $1,400for salaries. Prepare the reversing entry on November 1, and indicate the balances in Salaries Payable and Salaries Expense after posting the reversing entry. Would this answer be right??? Nov. 1 ...

*July 30, 2010*

**xacc 280**

At October 31, Nathan Company made an accrued expense adjusting entry of $1,400for salaries. Prepare the reversing entry on November 1, and indicate the balances in Salaries Payable and Salaries Expense after posting the reversing entry. Would this answer be right??? Nov. 1 ...

*July 30, 2010*

**cjs 200**

Thank you

*July 28, 2010*

**cjs 200**

What are the steps leading to a trial?? Can someone help me??

*July 28, 2010*

**geometry**

A triangle is formed where line segment AC and line segment BC have the same length. If the measure of angle ACB = 81 degrees, find the measures of angles x and y so that the top horizontal line will be parallel to the bottom horizontal line.

*July 28, 2010*

**xacc 280**

I have and didn't find anything. I am not real good on the computer much so learning two things at once can get to someone. SMILES I must go on and keep trying though.

*July 27, 2010*

**xacc 280**

Thank you that helped in many ways. I have been taking this accounting class for about 3 weeks now and I feel like I am getting no where.

*July 27, 2010*

**xacc 280**

What are reversing entries and why are they required?

*July 27, 2010*

**AED/204**

I need to create a multiculture lesson plan, I was thinking that I would try and do one during the christmas season with students that celebrate christmas and those that don't also having a students of different ethnic background and the different ways that they celebrate

*July 24, 2010*

**math**

collect the like terms x-5x

*July 19, 2010*

**algebra**

Thank you so so much for your help.

*July 19, 2010*

**photography**

products in a grocery store/ no standard

*July 8, 2010*

**photography**

how often do new pictures need to be takenof each model

*July 8, 2010*

**Math **

{lease help :) A contractor is considering a sale that promises a profit of $20,000 with a probability of .7 or a loss due to bad weather, strikes and such of $3000 with a probability of .3, what is the expected profit?

*June 21, 2010*

**Economic Help please**

1)What happen to the net public debt if the federal government operates next year with a: 1) Budget deficit? 2) balanced budget? 3) budget surplus? 2) A bank has $120 million in total assets, which are composed of legal reserves, loans, and securities. Its only liabilities are...

*June 15, 2010*

**health**

What external pressures have moved mainstream medicine to accept alternative therapies? Have any alternative therapies been proven to work as well as standard treatments? If so, name the therapies.

*June 9, 2010*

**Math**

Find an equation in slope-intercept form if possible Through (-8,1)with undefined slope.

*June 4, 2010*

**Math**

Use the echelon method to solve the system: x + 3y + 4z = 14 2x – 3y +2z = 10 3x – 9y + z = 9

*June 4, 2010*

**Math**

Find the equation of a horizontal line going through (-5, -19)

*June 4, 2010*

**College algebra 116**

Real world problem You are hosting a party at a restaurant. The restaurant charges $150 to reserve the room plus $25 person for food and drink. Write a linear equation representing your total bill based on the numbe of people at your party. If you graph this line, what is its ...

*June 1, 2010*

**Math**

Thomas said that 30% of his earning was spend for food. How much money does he spend in one year for food?

*May 31, 2010*

**math/trigonometry**

solve this equation by completing the square. x^2+4x-21=0

*May 23, 2010*

**psychology 230**

wat influence does culture have on personality?

*May 21, 2010*

**math**

a vending machine takes only nickels and dimes. there five times as many dims as nickels in the machine. the face value of the coins is $4.40. how many of each are there?

*May 20, 2010*

**physics 6a**

A potential difference of 4.75 kV is established between parallel plates in airf the air becomes ionized (and hence electrically conducting) when the electric field exceeds 3.00×106 V/m, what is the minimum separation the plates can have without ionizing the air? d=...

*May 20, 2010*

**science**

If 75grams of KNO3 are dissolved in 100 grams of H2O at 45 degrees Celsius, what level of saturation is in the soultion.

*May 19, 2010*

**physicsa 6a**

sorry again my computer..2.4m

*May 18, 2010*

**physicsa 6a**

thnak you! Can you please help me with this one as well? Its the same problem: 2.40 at an angle of 45.0 downward from the horizontal?

*May 18, 2010*

**physicsa 6a**

I am so sorry my computer didn't transfer it 28nC 4.00*10^4N/C .550m to the right

*May 18, 2010*

**physicsa 6a**

A charge of 28.0 is placed in a uniform electric field that is directed vertically upward and that has a magnitude of 4.00×104 . What work is done by the electric force when the charge moves

*May 18, 2010*

**Chemistry**

Hello, I have a question about something we learned in chemistry today. We've been going over Ka/Kb table values, and using them to determine if a solution is acidic, basic or neutral. One of the compounds (in aqueous solution) are NH4OCl (aq), which is supposedly basic. ...

*May 18, 2010*

**Algebra/trigonometry**

The expression cos4x cos3x+ sin4x sin3x is equilvalent to?

*May 18, 2010*

**algrbra/trigonometry**

in triangle ABC, angle a=120, b=10, and c=18. What is the area of triangle ABC tot he nearest square inch?

*May 18, 2010*

**algebra/trigonometry**

What are the values of theta in the interval 0degrees less than or equal to theta less than or equal to 360 degrees that satisfy the equation tan theta - radical3=0

*May 18, 2010*

**Algebra/trigonometry**

okay thank you

*May 18, 2010*

**Algebra/trigonometry**

The expression (3-7i)^2 is equivilant to? i know what the answer is im just not sure how to get it please help

*May 18, 2010*

**spanish**

I need to translate words in to Spanish from english

*May 16, 2010*

**algebra**

find sales tax in your area --(6%). using tax rate, write a linear equation representing the total with tax for a purchase of x dollars. Using this equation to dtermine what the pretax cost of the item is if the total cost is $10.

*May 13, 2010*

**Social Studies**

Explain the use and development of transportation and communication systems in regions of Canada.

*May 10, 2010*

**Math**

I have a bag of tiles 0-9. Without looking select a tile, record, return tile, select a second tile. What is the probability that exactly one tile will be a prime number?

*May 5, 2010*

**Chemistry**

a) moles of malachite in 1g: 1g / (221.12g/mol) = .004522 mol (b) moles of CuO produced: .72g / (79.55g/mol) = .009051 mol (c) ratio of moles of CuO produced per moles of malachite decomposed: 2CuO/CuCO3(OH)2 2*79.5/221.1 = 0.719 3. Use the mole ratio of CuO produced per mole ...

*May 3, 2010*

**chemistry**

(a) Mass of an empty Erlenmeyer flask (g): 91.780g (b) Mass of the Erlenmeyer flask with malachite(g): 92.780g (c) Subtract (a) from (b) to obtain the mass of malachite (g): 1g (c) Mass of Erlenmeyer flask with CuO(g): 92.500g (d) Subtract (a) from (c) to obtain the mass of ...

*May 3, 2010*

**chemistry**

3. Use the mole ratio of CuO produced per mole of malachite to write a balanced equation for the malachite decomposition reaction. Assume that CO₂ is also a product of the decomposition. CuCo3*Cu9OH)2 -----> 2Cuo+Co2+H2O 0.004522431 moles of malachite 0.01257071 moles...

*May 3, 2010*

**Geometry**

In Triangle ABC, a=7, b=6, and c=8. find angle B to the nearest degree?

*May 2, 2010*

**human services**

yes

*April 22, 2010*

**human services**

What are ethical dilemmas in medicare, medicaid, family planning, patient privacy, and privatilization?

*April 22, 2010*

**AP Chemistry **

The Ksp is 2.4 x 10^ -5. When I worked through this problem again, I came up with 2.0 x 10 ^-4 for Qsp

*April 21, 2010*

**AP Chemistry **

Thank you... Just to make sure... Since Qsp= 0.005 a precipitate will form.

*April 21, 2010*

**AP Chemistry **

Does precipitation occur when 100. mL of 0.050 M CaCl2 is added to 100. mL of 0.10 M K2SO4? Show calculations to support your response.

*April 21, 2010*

**AP Physics**

If 540 nm light falls on a slit 0.0490 mm wide, what is the full angular width of the central diffraction peak? °

*April 21, 2010*

**AP Physics**

Monochromatic light falls on two very narrow slits 0.050 mm apart. Successive fringes on a screen 4.60 m away are 5.7 cm apart near the center of the pattern. Determine the wavelength and frequency of the light. wavelength nm frequency Hz

*April 21, 2010*

**AP Physics**

Monochromatic light falls on two very narrow slits 0.050 mm apart. Successive fringes on a screen 4.60 m away are 5.7 cm apart near the center of the pattern. Determine the wavelength and frequency of the light. wavelength nm frequency Hz

*April 21, 2010*

**american history**

How did the Woodfrow Wilson's reform platform during the 1912 campaign differ from that of Theodore Roosevelt?

*April 19, 2010*

**Trig **

A. Find simpler, equivalent expressions for the following. Justify your answers. (a) sin(180 + è) (b) cos(180 + è) (c) tan(180 + è) B. Show that there are at least two ways to calculate the angle formed by the vectors [cos 19, sin 19] and [cos 54, sin 54].

*April 17, 2010*

**Trig**

4. Asked to simplify the expression sin(180−è), Rory volunteered the following solution: sin(180−è) = sin 180−sin è, and, because sin 180 is zero, it follows that sin(180−è) is the same as −sin è. Is this answer ...

*April 17, 2010*

**math/computers**

Problem: Solve X mod Y for all positive integers. Do so without using multiplication or division.

*April 16, 2010*

**geometry**

5. The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR. (d) Find the sizes of ...

*April 15, 2010*

**Math**

Tim put red, white and blue marbles in a bag. One-third are red, one-fourth are are white and ten are blue. how many of each are in the bag and what color are they?

*April 14, 2010*

**human services**

what is ethical advisory boards?

*April 13, 2010*

**vector**

If two vectors u and v fit the equation (u − v) • (u − v) = u•u+v•v, how must these vectors u and v be related? What familiar theorem does this equation represent?

*April 13, 2010*

**geometry**

The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR.

*April 12, 2010*

**vectors**

If two vectors u and v fit the equation (u − v) • (u − v) = u•u+v•v, how must these vectors u and v be related? What familiar theorem does this equation represent?

*April 12, 2010*

**math**

A little, but confusing sometimes.

*April 12, 2010*

**math**

What is the length of the vector [5 cos theta, 5 sin theta]? If the vector [5,0] is rotated 36 degrees in the counter clockwise direction, what are the components of the resulting vector?

*April 12, 2010*

**Trig**

Find all solutions w between 0 and 360, inclusive: (a) cosw = cos(−340) (b) cosw = sin 20 (c) sinw = cos(−10) (d) sin w < − 1/2 (e) 1 < tanw

*April 12, 2010*

**math**

What is the length of the vector [5 cos è, 5 sinè]? If the vector [5,0] is rotated 36 degrees in the counter clockwise direction, what are the components of the resulting vector?

*April 12, 2010*

**math**

Thanks

*April 12, 2010*

**math/trig**

What graph is traced by the equation (x, y) = (5sin 12t , 6−5 cos 12t)?Think of another equation that will produce the same graph. Use your calculator to check.

*April 11, 2010*

**math**

Solvefor y: x2 = a2 + b2 − 2aby

*April 11, 2010*

**geometry**

A segment that is a units long makes a C-degree angle with a segment that is b units long. In terms of a, b, and C, find the third side of the triangle defined by this SAS description. You have done numerical versions of this question. Start by finding the length of the ...

*April 11, 2010*

**math/geometry**

Jamie rides a Ferris wheel for five minutes. The diameter of the wheel is 10 meters,and its center is 6 meters above the ground. Each revolution of the wheel takes 30 seconds. Being more than 9 meters above the ground causes Jamie to suffer an anxiety attack. For how many ...

*April 11, 2010*