Sunday

August 28, 2016
Total # Posts: 1,039

**physics**

how do i go about in solving this? A helium atom (mass 4.0 u) moving at 596 m/s to the right collides with an oxygen molecule (mass 32 u) moving in the same direction at 402 m/s. After the collision, the oxygen molecule moves at 445 m/s to the right. What is the velocity of ...
*April 4, 2010*

**algebra**

Solve tne compound inequality 4x+2>= -22 or 7x+2>= -19 Thank you
*April 4, 2010*

**algebra**

Could you please help me solve. 3x+10>=7 and 2x-14>=-8 >= means greater than equal then thank you
*April 4, 2010*

**algebra**

Solve by the elimination method 0.3x-0.2y=4 0.4x+0.5y= - 55/17 Thank you
*April 4, 2010*

**algebra**

solve 2y-2<6y-3 Thank you
*April 3, 2010*

**algebra**

Determine whether the ordered pair is a soultion of the inequality. (8,18);7y-8x>3 I would have to say no? Thank you
*April 3, 2010*

**physics**

The prong of a tuning fork moves back and forth when it is set into vibration. The distance the prong moves between its extreme positions is 2.24 mm. If the frequency of the tuning fork is 440.7 Hz, what are the maximum velocity and the maximum acceleration of the prong? ...
*March 31, 2010*

**chemistry**

calculate the concentration of each solutions: 3 moles of solute dissolved in 2 liter of solution 6 moles of solute dissolved on 9 liters of solution 4 moles of solute dissolved in 3 liters of solution
*March 29, 2010*

**algebra**

Find an equation of the line having the given slope and the given point. m=0 (o,-4) would it be y=-4?
*March 21, 2010*

**algebra**

Find the slope and y-intercept, write fractional answer in lowest terms. 2y+9x+6=19+9x
*March 21, 2010*

**physics**

An 7.95 g bullet is fired horizontally into a 9.03 kg block of wood on an air table and is embedded in it. After the collision, the block and bullet slide along the frictionless surface together with a speed of 11.6 cm/s. What was the initial speed of the bullet?
*March 20, 2010*

**history**

Explain the policy of engagement
*March 19, 2010*

**social studies**

who wrote the senecafalls declaration? when and why
*March 15, 2010*

**chemistry**

assuming x=1, how much CuSO4.5H20 would you need to prepare 6 grams of copper ammine complex?
*March 15, 2010*

**Physics**

An advertisement claims that a particular automobile can "stop on a dime". What net force would actually be necessary to stop an automobile of mass 850Kg traveling initially at a speed of 43.0 km/h in a distance equal to the diameter of a dime, which is 1.8cm ?
*March 14, 2010*

**chemistry**

1.2 mol of CH3OH(g) are injected into a 2.0 L container and the following equilibrium becomes established. 2H2(g) + CO(g) <=====> CH3OH(g) + 92 kJ If at equilibrium 1.0 mol of CH3OH is still in the container the Ke must be which of the following? a. 25 d. 12.5 b. 125 e. ...
*March 12, 2010*

**Chem hw!**

If 0.105 mol of helium gas occupies a volume of 2.35 L at a certain temperature and pressure, what volume would 0.337 mol of helium occupy under the same conditions?
*March 11, 2010*

**7th grade**

128 pages a day
*March 10, 2010*

**environmental science**

what is a example of mutualistic symbiosis between the organisms of fungus and a photosynthetic alga?
*March 8, 2010*

**Biology**

What are two different ways that genes are identified in prokaryotic versus eukaryotic genomes.
*March 8, 2010*

**algebra**

find the slope x+6y=12
*March 7, 2010*

**algebra**

find the y-intercept and x-intercept 2x+3y=12 3x-6y=72
*March 7, 2010*

**math 61**

A=length*width or A=LW 1250=25L L=50ft
*March 6, 2010*

**Calculus ( finding limits)**

Find the limit as x-->-inf (x+2)^(3/2)+1 ----------I know that the answer is infinity but I don't know how to get this answer by hand. Could someone please help me? Thanks a lot!
*March 6, 2010*

**writing**

This is my Assignment.. Choose a topic from your personal knowledge and experience Write 3 to 10 pages (or between 750 to 2500 words) Write in your own words from your perspective or point of view, using the pronoun I Capture your reader’s attention with an interesting ...
*February 24, 2010*

**writing**

Hello. I could really use some help with my ESSAY. If anyone could tell me what they think of it and if anything needs corrected. Thanks Jess Well I guess the best place to start is the beginning. I was born in Kentucky, but only lived there for five years. Then moved to ...
*February 24, 2010*

**Physics**

We learned in lecture that the magnetic force on a charge q moving with velocity v in a magnetic field ~B has the form F = q~v × B One important fact about the cross-product is that for two vectors A and B , the following is true A × B = −B × A which ...
*February 23, 2010*

**grammar**

Never mind i figured it out lol sorry.
*February 23, 2010*

**grammar**

Thanks that was a big help. I just have one question. What does (SP) mean?
*February 23, 2010*

**grammar**

Hello. I could really use some help with my ESSAY. If anyone could tell me what they think of it and if anything needs corrected. Thanks Jess Well I guess the best place to start is the beginning. I was born in Kentucky, but only lived there for five years. Then moved to ...
*February 23, 2010*

**math**

4/x - 4/y _________ 2 - 2 y X __________ 4 thats y to the 2nd power and x to the second power
*February 18, 2010*

**Dress making**

Thanks that's what I thought but I just wanted to make sure before I turned it in.
*February 12, 2010*

**Dress making**

which of the following is the most complete and accurate definition of fiber A: A stringy substance from plants. B: The hair of an animal. C: Man-made threads and yarns. D: Basic raw material from which fabric is made.
*February 12, 2010*

**10th grade, spanish three**

how would i answer this question with direct object pronoun? quien te habla por la telefono todos los dias?
*February 11, 2010*

**chem**

im working on a lab in chemistry called measuring energy changes :Calorimetry how to you determine the molar latent heat of fusion of ice using q=mcT ?? why was the ice driedbefore it was placed in water? why is hot warer ysed rather than room temp? in which dirextion would ...
*February 11, 2010*

**English**

Thanks for your help, and I will read that link you sent :)
*February 4, 2010*

**English**

Isn't germen supposed to be capitalized?
*February 4, 2010*

**English**

Which of the following italicized words is correctly capitalized? I think it is D. is that correct? Thanks or your help.. A. Mount mckinley is the tallest mountain in North America. B. The most beautiful State is Hawaii. C. Marsha speaks excellent german. D. Jim must drive to ...
*February 4, 2010*

**Physics**

A rope is used o pull a metal box 15.0m across the floor. The rope is held at an angle of 46.0 degrees with the floor and a force of 628N is used. How much work does the force of the rope do?
*January 26, 2010*

**history/world war 1**

thank you!
*January 19, 2010*

**history/world war 1**

for this assignment i'm doing i have to list 3 specific reason for why the U.S joined world war one and i can only think of 2 which are 1.german submarine warfare(sinking of the Lusitania 2.Zimmerman telegram thanks!
*January 19, 2010*

**Literature**

thanks for your help...
*January 18, 2010*

**Literature**

I see so do you think it is D. appetite.??
*January 18, 2010*

**Literature**

Please can you check my answer.. 13. According to Renaissance philosophy, commoners often represent A. reason. C. pride. B. love. D. appetite. I think it it... B. love. It that correct ?
*January 18, 2010*

**math**

I have to write an equation for the following. The daily newspaper started printing three years ago they had 5700 home delivery subscribers. The number of subscribers increased by 67 every month. write equation that shows the relationship between number od subscribers B and ...
*January 17, 2010*

**math**

How would I get B?
*January 17, 2010*

**math**

I still don't understand this?
*January 17, 2010*

**math**

Give the equation of the line that is perpendicular to the line y= -3x + 7 and passes through point (0, -6) please help
*January 17, 2010*

**math**

the equation x^2 + 6 = -8x would be quadratic right?
*January 17, 2010*

**math**

is the given number a solution to the given equation yes or no? 4x= 8; 7 I would have to say no.
*January 17, 2010*

**math**

10x + 7 - y= 0 This equation would be linear right?
*January 16, 2010*

**business/Walmart**

What has happened to Wal-Mart that affects their strategy from 2007 to 2009???
*January 13, 2010*

**math**

How would I give an equation of a line that is parallel to y= -4 + 7 ? Thank you
*January 13, 2010*

**math**

Write an equation that shows the relationship between the quanities. The total cost of a certain plumber is a flat rate of $35 plus $9.50/hr How would I write the equation between the quanities? Thank you
*January 13, 2010*

**math**

indentify the slope and the y intercept for the line associated with the equation 5x + 20y= 60
*January 13, 2010*

**math**

find two points on any horizontal line to illustratewhy a horizontal line has a slope of 0
*January 13, 2010*

**math**

so the equation for vertical line is x=a. So it would be false?
*January 11, 2010*

**math**

The graph of an equation in the form y=mx + b is a straight line. Can the equation of every straight line be written in the form y=mx + b (Hint: What is the equation of a vertical line?)
*January 11, 2010*

**9th grade**

i have a test soon, and i don't know where my textbook is, can you tell me everything i need to know about organic compounds?
*January 11, 2010*

**MAT 116 Week 6 quiz**

what is the slope of (-19,-16) and (-20,-18)
*January 10, 2010*

**math**

give five oredered pairs that make the equation true y=20+x/3
*January 8, 2010*

**11th grade-Logs**

log x = 1/2 (log a + Log b - log c) express x in terms of a,b,and c.
*December 21, 2009*

**Math-LOGS**

Express x in terms of a,b and c. log x = 1/2 (log a + log b - log c) Please solve and explain how to do this type of problem, thank you!
*December 21, 2009*

**History**

Where i can get good info on this question so i can write a good essay. How did the bush administration's post-september 11th foreigh policy compare and contrast with previous US foreigh responses to grave national security treats? Thank you
*December 15, 2009*

**human resources **

what are some reasons under which affirmative action as a national priortity has been challenged?
*December 15, 2009*

**human resources**

what are six competive challenges facing human resources management departments
*December 15, 2009*

**Physics**

The angular position of a point on the rim of a rotating wheel is given by è = 8.0t - 3.0t2 + t3, where è is in radians and t is in seconds. (a) What is the angular velocity at t = 5 s? ___________rad/s (b)What is the angular velocity at t = 7.0 s? _________rad/s...
*November 25, 2009*

**Alegebra, math 116**

1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use ...
*November 22, 2009*

**physics**

40.72 m/s
*November 20, 2009*

**Physics**

A 2.85 kg stationary package explodes into three parts that then slide across a frictionless floor. The package had been at the origin of a coordinate system. Part 1 has mass m1 = 0.500 kg and velocity (10.0 + 12.0) m/s. Part 2 has mass m2 = 0.750 kg, a speed of 13.5 m/s, and ...
*November 18, 2009*

**Physics**

i just wanted help i have no idea who those other people are but if you dont want to help me thats fine
*November 18, 2009*

**English Help **

R for run on sentence, CS for comma splice, F for fragment, and C for correct sentence. Some correct sentences can be punctuated more effectively, however. Check over my anwers if i get it wrong please correct me. Thanks! 1. Carlos took the job and he was happy to get it. 2. ...
*November 8, 2009*

**English**

R for run on sentence, CS for comma splice, F for fragment, and C for correct sentence. Some correct sentences can be punctuated more effectively, however. 1. Carlos took the job and he was happy to get it. 2. Tono loves Chinese food, he eats it three times a week. 3. Lovie ...
*November 7, 2009*

**college**

Given 24 pens, either red or blue. If 4 are blue, what is the probability of you select 2 pens AT LEAST 1 will be blue. (without replacement, that is, you are taking 2 separate pens)
*November 4, 2009*

**Chemistry/maths**

Using the following stock solutions: NaCl, 100mmol KCl, 200mmol CaCl2, 160mmol Glucose, 5mmol Calculate the volumes of each stock solution and the volume of water needed to prepare 100ml of a single solution containing NaCl at 5.0mmol KCl at 2.5mmol CaCl2 at 40mmol Glucose at ...
*October 22, 2009*

**Chemistry/maths**

What mass of substance would be needed to prepare these solutions: 1) 400ml (cm3) at 5% weight/volume 2) 50ml (cm3) of NAOH at 10% weight/volume thanks
*October 21, 2009*

**English Language**

1.bread uncoventional 2.sack hired 3.peek pack 4.bare arilled 5.wrap unwrap 6.cent caulescent 7.cell cellular 8.knit direct 9.knot unravel 10.lead deficit there is such thing as opposites for this problem if you are looking for synonyms then ms.sue is right i looked on the ...
*October 8, 2009*

**geography honors**

im pretty sure its Georgia
*October 8, 2009*

**literature**

what are some active and passive voice verb example sentences
*October 8, 2009*

**Chemistry 130**

Can someone please help me and let me know if these questions and answers are correct? I just need a second opinion…and if there not correct can you help me…please?!? 1.(3). In the Arrhenius definition, an acid is a substance that a. turns litmus paper from blue to ...
*October 6, 2009*

**astronomy**

thank you
*October 4, 2009*

**astronomy**

The only important historical solar system object which has not yet been visited up close by satellite spacecraft is.. A) a comet or asteroid b) pluto c) neptune d) saturn's moon titan
*October 4, 2009*

**history**

what was the significance of reservation policy?
*October 4, 2009*

**Physics**

Suppose you are given the following equation, where xf and xi represent positions at two instants of time, vxi is a velocity, a is acceleration, t is an instant of time, and a, b, and c are integers. xf = xi ta + vxi tb + 1/2 ax tc For what values of a, b, and c is this ...
*October 4, 2009*

**Biology**

first question is organelles
*September 27, 2009*

**CHEMiSTRY PLEASE HELP**

What is the mass of 4.2 kg of gold when it is transferred to a planet having twice the gravity of earth?
*September 27, 2009*

**chemistry**

51. What is the mass of 4.2 kg of gold when it is transferred to a planet having twice the gravity of earth? 71. You have a mixture of salt and sand that must be separated by using physical changes only. Describe what you would do to prepare dry samples of the two constituents...
*September 27, 2009*

**Sci.**

51. What is the mass of 4.2 kg of gold when it is transferred to a planet having twice the gravity of earth? 71. You have a mixture of salt and sand that must be separated by using physical changes only. Describe what you would do to prepare dry samples of the two constituents...
*September 27, 2009*

**chemistry**

i need help in chem too. something similar
*September 27, 2009*

**chemistry**

thank you
*September 27, 2009*

**social science**

four elements of the consumer bill of right?
*September 17, 2009*

**Chemistry130**

Can someone please help me with this question? Propose a possible explanation as to why this trend exists. What characteristics of the elements lead to this trend? We are discussing Ionization energy! She's asking for characteristics like subatomic attractions, electron ...
*September 17, 2009*

**algrebra**

6-9(g+3)+6g
*September 14, 2009*

**math**

The volume of Fort Peck Dam is 96,050 X 1000m3. Suppose the state of Montana decides to increase the volume of the dam. After the improvements, Fort Peck will hold 10 times as many cubic meters. How many cubic meters will Fort Peck hold after the improvement.
*September 8, 2009*

**math**

What are the odds in favor of getting at least one head in three successive flips of a coin?
*September 6, 2009*

**5th grade Math**

What????????
*September 4, 2009*

**CALC**

Solve the Equation: 1. 2^x + 2^-x = 5 2. Log2x + log2(4 – x) = 0 thanks. i'm not sure how to approach this at all.
*July 22, 2009*

**Calc**

Find the x and y intercepts of the line: x/a + y/b = 2 thanks!
*July 21, 2009*

**science-english**

What does radioactive mean?
*May 26, 2009*