Tuesday

March 31, 2015

March 31, 2015

Total # Posts: 1,310

**Physics**

A particle with a charge of -4.50x 10^-10 C and a mass of 6.6x 10^-18 kg is placed between two oppositely charged parallel plates with a voltage of 9.00x 10^5 V. The particle is injected at the negative plate with an initial speed of zero. What is the final speed of the ...
*April 5, 2012*

**pre-ap math**

the diagonal of a rectangular poster is 25 in. The width is 15 inches. If madison wants to put a border on the edge of the poster , how many inches will she need to buy?
*April 3, 2012*

**chemistry**

A sample of N2 gas occupies a volume 180 mL at STP. What volume, in L, will it occupy at 640 mm Hg and 295 K?
*March 29, 2012*

**chemistry**

What is the total pressure in a 4.00 L flask at 298 K, that contains 2.6 moles of He, 0.8 moles of Ne, 1.6 moles of O2?
*March 29, 2012*

**chemistry**

A mixture of 8.95 g of Cl2 and 18.0 g of NO2 and an undetermined amount of SO2 occupies a volume of 22.4 liters at 760 mm Hg and 0 C. How many moles of SO2 are present? I keep coming up with 62 and that is not right. Someone please help!!
*March 29, 2012*

**chemistry**

What is the volume at STP, in liters, occupied by 26.4 g of F2 gas?
*March 29, 2012*

**chemistry**

What is the R for? What answer do you get? I come up with 62 but that is not right.
*March 29, 2012*

**chemistry**

A mixture of 8.95 g of Cl2 and 18.0 g of NO2 and an undetermined amount of SO2 occupies a volume of 22.4 liters at 760 mm Hg and 0 C. How many moles of SO2 are present?
*March 29, 2012*

**Algebra 2**

A measurement y varies directly with regard to another value x. If y = 9 and x = 24, find x for y = 25.
*March 28, 2012*

**Math**

The fixed cost is $500,000 and the variable cost is $.50 per cd. The company sells each CD to record stores for $5. X represents the number of cds produced and sold. How many disks must be sold for the company to break even?
*March 27, 2012*

**English**

This is a run-on sentence.
*March 27, 2012*

**chemistry**

Hydrogen and oxygen react to produce water according to the equation below. 2 H2 + O2 2 H2O How many liters of hydrogen at STP are needed to produce 0.24 mol H2O?
*March 27, 2012*

**Math**

greater than or equal to an 88%.
*March 27, 2012*

**Math Problem**

42x^3+37x^2+29x+4
*March 27, 2012*

**5th grade Math**

yes, it is b
*March 27, 2012*

**Opinion**

Which class would be better(easier) to take Earth Science or Astronomy?
*March 21, 2012*

**algebra**

combine like terms 11/14a-1/15b+1/14a-11/15b
*March 18, 2012*

**algebra college**

multiply and simplify 3^-2-3^6
*March 18, 2012*

**Chemistry**

Bonjour mon ami... Ca va? La chemie est un excellent science n'est-ce pas? Alors je vais partir maintenant, aie une bonne vie!
*March 15, 2012*

**algebra**

for h(x)-4 find h(7)
*March 13, 2012*

**Math**

48 is 88% of what number
*March 11, 2012*

**Algebra**

A company produced 2,590,000 small appliances in one year and made a profit of 6,590,000. What was the profit of each appliance? Express the answer in scientific notation in two decimals
*March 10, 2012*

**Math**

Solve by completing the square, 8x^2+4x-4=0
*March 9, 2012*

**Math**

The length of a rectangle is 10cm greater than the width. The area is 551cm^2. Find the length and width
*March 8, 2012*

**Math**

eff cuts lawns for $20.00.next year, he will charge $4.00 more per lawn. what is the percent increase will he charge
*March 8, 2012*

**Math**

In a right triangle, find the length of the side not given. Approx to the three decimal places. a and b are the length of the legs and c is the length of the hypotenuse. b = 4"sqrt"2 and c = 9
*March 3, 2012*

**Math**

Police use a formula s = S √1/L , where S is the test-car speed and L is the test-skid length, to find the actual speed s in an accident which left a skid mark of l. Find the actual speed s (nearest whole mph) when S=45 mph, 1=150 ft, L=100 ft.
*March 3, 2012*

**Mathematics__Please help**

$M is just sufficient to pay for the wages of one qualified teacher for x days or the wages of one relief teacher for y days. For how many days will $M be sufficient to pay for the wages of one qualified teacher and one relief teacher? Give your answer in terms of x and y.
*March 3, 2012*

**reeading**

I like fantasy novels! My favorite novel is Harry Potter.
*March 2, 2012*

**Math**

The electric current I in a circuit varies directly as the voltage V. When 21V are applied, the current is 4A. What is the current when 18 volts are applied
*March 2, 2012*

**Mathematics**

Express the following as a fraction with a single denominator: 1/(2a-3) - 2/(3-2a) + 18/(9-4a^2)
*March 2, 2012*

**MATH**

MRS. M IS GOING TO PUT DOWN TILES ON HER KITCHEN FLOOR. SHE PLANS TO USE A PATTERN WHERE THERE WILL BE 3 SQUARE TILES FOR EVERY 1 TRIANGULAR TILE. IF SHE USES A TOTAL OF 900 TILES, HOW MANY OF THOSE ARE IN TEH SHAPE OF A SQUARE?
*February 29, 2012*

**Math**

Express the following as a fraction with a single denominator: 1/(2a-3) - 2/(3-2a) + 18/(9-4a^2)
*February 29, 2012*

**Math**

15*2.5 =37.5 ft
*February 29, 2012*

**criminal procedure**

In which areas of search and seizure do you feel that the courts have not gone far enough? In which areas of search and seizures do you feel that the courts have not gone far enough? suport your position. Use actual court cases to support position.
*February 24, 2012*

**math**

a perso increases the number of tosses of a fair coin the actual number of heads will get farther and farther away from the number of tosses divided by 2
*February 24, 2012*

**Humanities**

I need to find 2 quotes from both John Locke's Of Civil Government and Jefferson's Declaration of Independence and tell how John Locke influenced Thomas Jefferson to write the Declaration....
*February 20, 2012*

**Humanities**

Quote at least two pairs of related lines from the Declaration of Independence and from John Locke's Of Civil Government. support the idea that Thomas Jefferson was influenced by Locke.
*February 20, 2012*

**math **

The order of magnitude of the radius of our solar system is 10 to the 13th power meters. the order of magnitude of the radius of the visible universe is 10 to the 13th power times as great. find the approximate radius of the visible universe. can anyone explain to me how to ...
*February 17, 2012*

**physics**

calculate the force of gravity between earth (mass = 6.0 x 1024kg) and the moon (mass = 7.4 x 1022 kg). the average Earth-moon distance is 3.8 x 108 m.
*February 1, 2012*

**personal finance**

calculating future value of retirement account in which you deposit $2,000 a year for 30 years with an annual interest rate of 7 percent?
*January 24, 2012*

**personal Finance**

Pam Thompson is offered a salary of 28,000. The company gives annual raises of 6 percent. What would be pam,s salary during her fifth year on the job.
*January 24, 2012*

**personal finance**

what would be the future value of 280,000 based on an annual interest rate at 6 percent?
*January 24, 2012*

**7th science**

acceleration=force divide by mass . How do you solve 20m/s2 =unknown divide by 0.15kg
*January 21, 2012*

**Chemistry**

The pressure of a gas is affected by the number of particles and not affected by the kind of gas it is. What does this fact tell us about ideal gases?
*January 19, 2012*

**chemistry**

The pressure of a gas is affected by the number of particles and not affected by the kind of gas it is. What does this fact tell us about ideal gases?
*January 19, 2012*

**Physics**

While John is traveling along an interstatehighway, he notices a 166 mi marker as he passes through town. Later John passes a 120 mi marker. What is the distance between town and John’s current location? Answer in units of mi
*January 15, 2012*

**literary**

how do i find the literary device in this poem? Her beam on the waves, I gazed awhile On her cold smile Too cold-too cold for me-\ There pass'd as a shroud A fleecy cloud, And i turned away to thee, Proud Evening Star
*January 7, 2012*

**science**

if a 600 kg racing car crashes into barrier at 190 mph and it takes 3 seconds for the car to stop sill,what is the force that the car hit with?
*January 5, 2012*

**physics**

A 1.30 × 10 4 kg railroad car moving at 6.70 m/s to the north collides with and sticks to another railroad car of the same mass that is moving in the same direction at 1.83 m/s. What is the velocity of the joined cars after the collision? Answer in units of m/
*January 4, 2012*

**grade six math**

Draw an equilateral triangle. Divide each side in half and join the points to make four small equilateral triangles. Rearrange these four equilateral triangles into a parallelogram. Compare the perimeter of the original triangle with the perimeter of the parallelogram. Explain...
*December 18, 2011*

**Physicss....**

Thank you(((:
*December 15, 2011*

**Physicss....**

Two carts with masses of 4.24 kg and 2.22 kg move toward each other on a frictionless track with speeds of 4.55 m/s and 3.16 m/s respectively. The carts stick together after colliding head-on. Find the final speed.
*December 15, 2011*

**algebra**

x^3y^2+512y^2
*December 4, 2011*

**Chemistry**

When 25.0g of Zn reacts, how many L of H2 gas are formed at 298K abd a oressure of 854mmHg?
*November 30, 2011*

**Accounting**

What impact does amt have on the decision to whether to use either the percentage of completion method or completed contract for reporting profit on longterm contracts?
*November 27, 2011*

**math**

rewrite this ad so it will be more effective: Three thousand five hundred dentists surveyed recommend sugarless gum to their parents who chew gum
*November 22, 2011*

**Algebra II **

The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the desk, what size ...
*November 22, 2011*

**Algebra II **

If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?
*November 22, 2011*

**math**

Convert each of the following repeating decimals to form, where a and b are integers and : __ a. 0.7 __ C 2.37 __ e 4.34
*November 22, 2011*

**math**

Bayside insurance offers two health plans. Under Plan A Giselle would pay the first $80 of her medical bills, plus 30% of the rest. Under Plan B Giselle would pay the first $140 but only 25% of the rest. For what amount of medical bills with plan B save Giselle money. Assume ...
*November 17, 2011*

**math**

Help with this word problem please! Bayside Insurance offers two health plan A, Giselle would have to pay the first $80.00 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $90.00 but only 20% of the rest. For what amount of medical bills ...
*November 16, 2011*

**math**

Help with this word problem please! Bayside Insurance offers two health plan A, Giselle would have to pay the first $80.00 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $90.00 but only 20% of the rest. For what amount of medical bills ...
*November 16, 2011*

**math**

Help with this word problem please! Bayside Insurance offers two health plan A, Giselle would have to pay the first $80.00 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $90.00 but only 20% of the rest. For what amount of medical bills ...
*November 16, 2011*

**algerbra**

This is the way the question is wrote . were the dollar sign is suppose to be the amount but I can't figure it out.
*November 16, 2011*

**algerbra**

Need help with this question I can get it. Bayside insurance offers two health plans, under A Giselle would pay the first $50 of her medical bills plus 35% of the rest. Under plan b Giselle would pay $180 in bills. Giselle would save with plan B if she had more then $ in bills.
*November 16, 2011*

**algerbra**

Need help with this question I can get it. Bayside insurance offers two health plans, under A Giselle would pay the first $50 of her medical bills plus 35% of the rest. Under planb Giselle would $180 in bills. Giselle would save with plan B if she had more then $ in bils.
*November 16, 2011*

**sentences**

Can you give me a sentence with the word eddies?
*November 15, 2011*

**Physics**

A small block of mass m1 = 0.500 kg is released from rest at the top of acurved-shaped frictionless wedge of mass m2 =3.00 kg, which sits on a frictionless horizontal surface as inFigure P9.60a. When the block leaves the wedge, its velocity ismeasured to be v1 = 3.20 m/s to ...
*November 14, 2011*

**physics**

When the play button is pressed, a CD accelerates uniformly from rest to 495 rev/min in 3.1 revolutions. If the CD has a radius of 6 cm, and a mass of 17 g, what is the torque exerted on it?
*November 10, 2011*

**psy**

I would like to know what are the main things that I need to know about what i need in my outline
*November 10, 2011*

**psy**

Outline, in a response, the main points that a therapist might cover in a counseling session to help each individual for each scenario. Your response should be 700 to 1,050 words in length. · Anna, an adolescent girl, is very much in love with her boyfriend who is three...
*November 10, 2011*

**chemistry**

How can you separate Ag+, Bi3+, Ni2+ in a solution? I am suppose to make a flow chart... would i use HCL to seperate Bi3+ and Ag+ from Ni2+?
*November 7, 2011*

**Physics**

A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.4 m waterfall. The spy’s speed is 14 m/s and the officials’ speed is ...
*November 4, 2011*

**physics**

thank you, I initially thought of doing that but it was the wrong answer. Thank you though!
*November 3, 2011*

**physics**

A centrifuge is a common laboratory instrument that separates components of differing densities in solution. This is accomplished by spinning a sample around in a circle with a large angular speed. Suppose that after a centrifuge in a medical laboratory is turned off, it ...
*November 3, 2011*

**Chemistry**

Group III cations
*October 31, 2011*

**Chemistry**

How would you test a solution containing only Co2+ and Fe3+ ions?
*October 31, 2011*

**geometry**

how would you write an equation for a phone that cost $30 plus 30 cents per minute
*October 28, 2011*

**math**

deshawn and Luke had an equal number of stickers. After deshawn used 26 stickers and Luke lost 38 stickers. deshawn had twice as many stickers as Luke. how many stickers did each of them have in the beginning ?
*October 21, 2011*

**Hum186**

What are some of the most influential and important games released to the general public within the last few years? Why are they important?
*October 13, 2011*

**math**

3 Normally distributed Test scores for a police exam is a normal distribution TEST,150,20. 5) Find the probability that a randomly chosen candidate’s score is greater than 165. 6) Find the cut-off score for the top 10% of test-takers.
*October 7, 2011*

**math**

A gallup poll of 1236 adults showed that 14% believe that bad luck follows if your path is crossed by a black cat, so n=1236 and p=0.14 1.Find the mean? 2.Find the standard deviation? 3.Find the ND (np > 5 and nq > 5 ?) 4.Find the min, max of usual values by RROT
*September 28, 2011*

**Math**

If 2t + 3 = -9, what is the value of -3t - 7?
*September 27, 2011*

**science**

thank you so much for helping me
*September 23, 2011*

**science**

72 pulse beats per a minute
*September 23, 2011*

**science**

if you count 12 pulse beats in 10 s what is the pulse rate in beats per minute
*September 23, 2011*

**science**

thank you so much :)
*September 23, 2011*

**science**

120cm/a day
*September 23, 2011*

**science**

thank you so much
*September 23, 2011*

**science**

i got 3 cm
*September 23, 2011*

**science**

thanks
*September 23, 2011*

**science**

thank you i happy now i got my extra credit and home work done thanks for all the help from you :) :) :) :)
*September 23, 2011*

**science**

1.68km/for minutes
*September 23, 2011*

**science**

180
*September 23, 2011*

**science**

i got 1hour 13 min and 1.68 for km
*September 23, 2011*

**statistcs**

Bao Xishun is the world's tallest man with a hieght of 92.95 in. (or 7ft, 8.96 in.). men have hieghts witha mean of 69.6in and a standard deviation of 2.8 in. 1) convert Boa's height to a z score 2) does Boa's height meet the criterion of being unusual by ...
*September 19, 2011*

**statistcs**

The authors generac generator produces voltage amounts with a mean of 125.6 volts and a standard deviation of 0.3 volt. using the Chebyshev's theorem, what do we know about the percentage of voltage amounts that are within 3 standard deviations of the mean? what are the ...
*September 19, 2011*

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | **7** | 8 | 9 | 10 | 11 | 12 | 13 | 14 | Next>>