Tuesday

January 27, 2015

January 27, 2015

Total # Posts: 249

**Chemistry**

Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half life of 2.48 * 10^5 years Thorium-230 has half life of 8.0 * 10^4 years Radium-226 has half life of 1.62 * 10^3 years Lead-210 has half life of 20.4 years. The rate constant for the decay of unstable nuclide X...
*March 20, 2012*

**Chemistry**

What volume will be required to contain a mixture of 0.547 mol of N2 and 0.547 mol of O2 at 1.11 atm and 22.1 degrees celsius?
*March 20, 2012*

**Math**

An alien rocketship is traveling at a speed of 2,500,000 feet per minute. At this speed, how many miles will it travel in 1 second? Round to the nearest thousandth.
*February 20, 2012*

**Math**

Transform: log3^4= log(3/4)=
*February 20, 2012*

**physics**

A 690 kg elevator starts from rest. It moves upward for 2.56 s with constant acceleration until it reaches its cruising speed, 1.84 m/s. What is the average power of the elevator motor during this period? What is the power of the elevator motor during an upward cruise with ...
*February 20, 2012*

**physics**

A 67.7 kg person jumps from rest off a 3.11 m-high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.04 m under the surface of the water. Determine the magnitude of the average force that the water exerts on the diver. This ...
*February 19, 2012*

**physics**

A basketball player makes a jump shot. The 0.585 kg ball is released at a height of 2.14 m above the floor with a speed of 7.15 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.19 m/s. What is the work done on the ball by air resistance, a ...
*February 19, 2012*

**MATH**

does 2+2-2+2-2+2-2-2+2=2 ??
*February 15, 2012*

**is this correct?- math**

thank you very much!
*February 12, 2012*

**is this correct?- math**

find the domain of the real valued function; f(x) = sqrt(5 - (sqrtx)) my solution: 5 - (sqrt x) >=0 -(sqrt x) >= -5 (sqrt x) <= 5 x <= 25 (-infinity, 25] is this correct?
*February 12, 2012*

**math**

1.) The first person who requires your assistance is Tina the bearded lady. Tina’s side job is to look after the elephants (she double majored at circus university.) a. Tina must fill the semi-circular trough shown above with peanuts. Tina knows that the store bought ...
*February 11, 2012*

**Analytic geometry**

Write in general form, the equation of the straight line that passes through the points A(-6, -1) and B(2,2)
*February 10, 2012*

**International Finance **

Suppose that the current Bid-Offer on the Yen is $0.0089/¥ and $0.0091/¥, and the three-month forward is $0.0094/¥. 1. If you wish to hedge 10,000,000 Yen Obligation due in three months, what position would you take? Explain why. a. Buy Yen forward at $0.0089/¥...
*February 7, 2012*

**Phi103**

Reporter: A new campaign finance reform bill being considered by Congress would limit the amount of campaign contributions that political candidates can receive. However, a survey of candidates running for mayor, governor, and senate seats shows that not one of them favors the...
*February 4, 2012*

**english**

How does Aenea's detachment differ from Rama's in the Ramayana?
*December 14, 2011*

**English**

can you help pleasE?
*December 14, 2011*

**English**

Sorry! We are working in a group..
*December 14, 2011*

**English**

How does the Ramayana portray or illustrate precepts from the Bhagavad Gita?
*December 14, 2011*

**physiology**

if the isotonic solution in our body reduces like near to negligible then what would be the effect will it make on hematocrit concentration will it also become low and why?? please answer fast
*November 30, 2011*

**Math/ Number sense**

9+1+3=13. 7+1+5=13
*November 29, 2011*

**Math/ Number sense**

Use the numbers shown. Make the sum of the numbers across equal the sum of the number down. 7 5 1 9 3
*November 29, 2011*

**Math**

Thanks, MS. SUE
*November 22, 2011*

**Math**

Kindly pls. It's is the right answer is 30 . Thanks
*November 22, 2011*

**Math**

Reasonableness. Use the clues to solve the. Riddle. I am between 24and34. You say my name when you count by twos from zero. You say my name when you count by fives from zero. What number am I? 20 21 22 23 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
*November 22, 2011*

**Reasonableness**

Thanks, ms sue
*November 2, 2011*

**Reasonableness**

Sorry, it's red flag 25.
*November 2, 2011*

**Reasonableness**

Blue flag is 14--- Yellow flag 32
*November 2, 2011*

**Reasonableness**

Yes, even is like counting by 2. Odd is 1 3 5 7 9
*November 2, 2011*

**Reasonableness**

The flag that Nico waves has an odd number in the ones place and an even number in the tens place. RED flag 25- blue flag 14- yellow flag-32-green flag 6--oranges flag--17
*November 2, 2011*

**Math**

Chart 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
*November 2, 2011*

**Math**

The secret number has a 7 in the ones place, The tens number is an odd number
*November 2, 2011*

**Science**

Now I'm confused!! HELPPPPP
*October 25, 2011*

**science**

Destiny is using a nutrient solution to use in her garden.She places the powder in a watering can.Then she adds the water.Which would dissolve the powder the fastest? A.SHAKING THE CAN VIGOROUSLY B.STIRRING THE SOLUTION SLOWLY C.TILTING THE CAN CAREFULLY FROM SIDE TO SIDE D....
*October 25, 2011*

**math**

one box holds 16 crayons. ANOTHER BOX HOLDS 24 CRAYONS. wRITE A SENTENCES USING WOLDS THAT COMPARES THE CRAYONS IN THE TWO BOXES.
*October 24, 2011*

**physics**

Not at all, my dad was involved in the accident. And no one was hurt, insurance info was exchanged and parties went home uncited. I'm just fascinated by the forces involved and very curious as to the physics causing the spinning effect . My dad says the Mercedes weighs as ...
*October 7, 2011*

**physics**

It appears to be at a 45° angle , minivan is hit on rear right wheel and top of the line Mercedes Benz front airbags deploy.
*October 7, 2011*

**physics**

How fast must a 3000 lb car be traveling to hit a 4000 lb minivan on the side rear to spin it 180°
*October 7, 2011*

**math **

a single card is drawn from a deck. find the probability of selecting a 10 or a diamond.
*August 20, 2011*

**Reading **

People can learn lots of things from kids that are dying. The kids can show you sight, hearing, smell, taste, or touch to their death. They would show you all wisdoms in the world, and can teach you all about life if you can listen to them. For example in this story Alain ...
*June 24, 2011*

**Reading **

this for the story unfinished business by elisabeth kubler-ross.
*June 24, 2011*

**Reading **

Can someone help me with this answer check if its right ok the question says After Reading discuss what you think people can learn from those who are dying? So i put Well people can learn a lot from kids that are dying. The kids can sense of their sight, hearing, smell, taste...
*June 24, 2011*

**Poetry **

a direct comparison between unlike things that does not use a signal word What's the word to this Definition
*June 20, 2011*

**ENGLISH**

WHAT DOES AFIELD MEAN
*June 6, 2011*

**Chemistry**

Phosphorous trichloride (PCl3) is produced from the reaction of white phosphorous (P4) and chlorine: P4(s) + 6Cl2(g) --> 4 PCl3(g) . A sample of PCl3 of mass 280.7 g was collected from the reaction of 70.86 g of P4 with excess chlorine. What is the percentage yield of the ...
*March 23, 2011*

**Chemistry**

2NaN3(s) −> 2Na(s) + 3N2(g) . If 0.65 mol of NaN3 reacts, what mass of nitrogen would result? Answer in units of g. Step by step with answer please! I'm begging!
*March 23, 2011*

**Sound and music**

If the fundamental frequency for a 60-cm long guitar string is 500 Hz, what is the speed of the traveling waves?
*March 15, 2011*

**physics**

Your sonic range finder measures the distance to a nearby building at 20m. The range finder is calibrated for sound traveling 343 m/s, but on this very cold day the speed of sound is only 309 m/s. How far away is the building?
*March 15, 2011*

**Math**

Put this to least to greatest--> 5/12 11/18 4/7 9/ 20 9/10 11/12 6/7 7/8
*January 4, 2011*

**Math**

Put this to least to greatest--> 5/12 11/18 4/7 9/ 20 9/10 11/12 6/7 7/8
*January 4, 2011*

**4th math**

YOU ARE WRONG MS.SUE!!!!!!!!!!!!!!!!!!!! 3/4 1/3 2/5 0.09 0.5 BAM thats the answer -Harry Humperharder(i hate my last name!)
*January 3, 2011*

**java refractor**

Why am I getting error called that the renaming refractor cannot apply in this context when trying to change a name in the netbeans? And how should I solve it? Please tell me quickly. emergency I need to submit my project tomorrow
*January 1, 2011*

**PDF**

Please tell me a software to edit ,write PDF files with all the necessary functions in a word document that i can free download
*December 26, 2010*

**Physics**

What would the volume of commercial butane be equal to given an air flow of 0.6 cubic metres/hr?
*December 9, 2010*

**English 2**

I appreciate it
*November 23, 2010*

**English 2**

Is it C?
*November 23, 2010*

**English 2**

It's in the English 2 textbook and the author is Jeanne Wakatsuki Houston.
*November 23, 2010*

**English 2**

In "It Can't Be Helped," why does Mama destroy her dishes? a)She does not like the pattern on the dishes, which are chipped anyway. b)Most of the other dishes have been broken in the move. c)She doesn't want the dealer to take advantage of her family's ...
*November 23, 2010*

**physics help**

An electric circular saw is designed to reach its final angular speed, starting from rest, in 1.16 s. Its average angular acceleration is 375 rad/s2. Obtain its final angular speed.
*November 19, 2010*

**Chemistry**

The weak acid HQ has a pKa of 4.89. calculate the [OH-] of .50 M HQ.
*November 15, 2010*

**Chemistry**

What is the balanced net ionic equation for the following reaction: 2 NH4Cl + Ba(OH)2 = 2H2O + BaCl2 + 2 NH3 i got 2NH4^+ +2OH- = 2H2O + 2NH3 but it keeps telling me i'm wrong
*November 13, 2010*

**physics**

What displacement must be added to a 50cm displacement in the +x-direction to give a resultant displacement of 85cm at 25 degrees
*November 1, 2010*

**calculus**

how do i differentiate √secx+tanx ??
*October 20, 2010*

**7th grade**

you have 8 moving boxes that you can use to pack for college. each box holds 15 lbs of clothing or 60lbs of books. let c be the number of boxes that contain clothing. write a function that gives the total pounds T of the boxes in terms of the number of boxes that contain ...
*October 12, 2010*

**algebra with pizazz pg 40 riddle**

4xt5(7x-3)=9(x-5)
*September 26, 2010*

**physics**

model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a constant upward acceleration of 1.00 m/s2 until its engines stop at an altitude of 130 m. (a) What is the maximum height reached by the rocket? m (b) How long after lift-off does...
*September 8, 2010*

**gcse science**

how would you get iron from iron oxide?
*June 19, 2010*

**Algebra**

what's the question asking? the zeroes of the function? the domain? in this case, if you want to find the domain you have to factor the bottom (5-x)/[(x-3)(x-5)] and because you know the denominator cannot be zero because that will make the problem undefined, the domain ...
*May 15, 2010*

**Chem**

For a titration to be effective, what must be the relationship between the equivalence point and the endpoint?
*May 15, 2010*

**science**

what resistance would produce a current of 120 amps from a 6-volt battery?
*May 15, 2010*

**science**

what is the current prouce by a potential difference of 240 volts through a resistance of 0.2 ohms?
*May 15, 2010*

**Computers**

I need help with the following question: Which is more important in increasing network speed, network capacity or processing speed? Why?
*May 9, 2010*

**math**

paul did 9 tricks in 2 minutes and 15 seconds.how many seconds did each trick take?
*May 4, 2010*

**math**

factorise 1. 3a^2 - 2a - 8 2. 3x^2 + 31 + 10 3. 64y^2 - 49 please help thankyou
*April 16, 2010*

**Economics**

Assignment 3 1. Some games of strategy are cooperative. One example is deciding which side of the road to drive on. It doesn’t matter which side it is as long as everyone chooses the same side. Otherwise, everyone may get hurt. Driver 2 Left Right Driver 1 Left 0,0 -1000...
*March 1, 2010*

**Math**

The measures of three of the angles of a quadrilateral are 40, 70, and 130. What is the measure of the fourth angle?
*February 21, 2010*

**Chemistry**

The reaction of aqueous barium hydroxide and aqueous sodium sulfate is represented by the balanced net ionic equation. Ba2+(aq) + SO42-(aq) → BaSO4(s) Give the balanced ionic equation for the reaction. Include the states.
*January 29, 2010*

**math**

is the fraction -(1/5) the same as -1/5 or the same as 1/-5. thank you.
*January 25, 2010*

**Physics**

A race driver has made a pit stop to refuel. After refueling, he leaves the pit area with an acceleration whose magnitude is 6.0m/s 2 . After 4.0s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant speed of 70 m/s ...
*January 6, 2010*

**math**

forgot to write it, the school sells 370 tickets
*January 1, 2010*

**math**

A school sells tickets for a show, (a) adult tickets and (c) child tickets. 1) each adult ticket costs $8 and each child ticket costs $5. the total takings are 2300. Write an equation to represent this information. 2) solve algebraically the simultaneous equations to find the ...
*January 1, 2010*

**history**

for my history homework i need to make a leaflet or poster demonstrating different attitudes to war. im not sure what to do. i was going to make a poster with good and bad points. does this sound right? thanks:)
*November 15, 2009*

**home economics**

what happens to bacteria between tempretures five degrees and sixty three degrees
*November 4, 2009*

**mathematics**

in f(x)=ln(x/x-1) how would you write an exporession for f^-1(x), where f^-1(x) denotes the inverse of f(x)
*July 19, 2009*

**mathematics**

sin(theta)= 1/4 and (pie/2)<theta<pie what would be the value of cos(theta)
*July 18, 2009*

** math**

the domain and range of y=1/(x-2)
*July 16, 2009*

**algebra**

thank you
*April 29, 2009*

**algebra**

inverse of y=(x+6)^3+3
*April 29, 2009*

**CHEM**

Calculate the equilibrium constant for the weak base CH3NH2, if a solution of the base with an initial concentration of 7.05×10-4 M has a [CH3NH3+] of 0.000379 M (make an exact calculation assuming that initial concentration is not equal to the equilibrium concentration...
*April 26, 2009*

**english**

i need an 8 letter word with only the consonant N and it is used 4 times
*March 10, 2009*

**algebra 2**

simplify: y = 5x + 3 (6x^2 - 2x)
*February 26, 2009*

**chemistry**

If an element has three electrons in its outmost evergy level, what charge would most likely form on an ion from this element?
*January 10, 2009*

**math**

Graph the function. y=-1.6(6)^x What is the domain and range?
*December 31, 2008*

**science**

How can one earthquake cause anotehr one?
*December 17, 2008*

**math**

It is supposed to be a matrix. 2, 1 -3, 4 but i donot know how to put the brackets. i used commas to seperate the numbers
*December 6, 2008*

**math**

Using the inverse of: 2 1 -3 4 Find 2x+y=2 -3x+4y=1
*December 6, 2008*

**math**

it is supposed to be 0, 1 1, 0 not 01 and 10. sorry
*December 6, 2008*

**math**

Let B= 0 1 1 0 Find B if it is to the negative one power. (Its supposed to be a matrix, but I dont know how to write the brackets on the computer)
*December 6, 2008*

**History**

Thank you for your help!
*October 23, 2008*

**History**

One main difference between the Articles of Confederation and the U.S Constitution was that the Articles were very weak and the people had more power than the government while the Constitution gave more power to the government. Are there any other main differences? I ...
*October 23, 2008*

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