Friday

April 18, 2014

April 18, 2014

**Recent Homework Questions About First Aid**

Post a New Question | Current Questions

**Algebra 1 (Step-by-Step)**

first I have to take a -1 out so it is easier -1(4 x^2 + 8 x - 5) one way to get 8 is with 2 and 10 -1 (2 x + 5)(2 x - 1)
*Monday, March 10, 2014 at 6:46pm*

**Physics**

A rocket is fired in deep space, where gravity and drag forces are 0. If The rocket has in initial mass of 6000kg and eject gas at a relative speed of 2000m/s, how much gas must it eject in the first second (1s) to have an inital acceleration of 25m/s?
*Monday, March 10, 2014 at 4:50pm*

**Alegbra**

x = 5000-y .05x + .08y = 331 Substitute 5000-y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation. Where can I find those interest rates?
*Monday, March 10, 2014 at 3:40pm*

**Alegbra**

Mary has a total of $5000 invested in two accounts. One account pays 5% and the other 8%. Her interest in the first year was $331. Write and solve a system of equations to find out how much she has invested in both accounts.
*Monday, March 10, 2014 at 3:27pm*

**english**

May you please edit this essay? Holden Caulfield in “Catcher in the Rye”, seems to be obsessed with mortality and youthful innocence, both of which are embodied in James Castle and Allie Caulfield. Holden demonstrates these infatuations in his conversation with ...
*Monday, March 10, 2014 at 1:48pm*

**Health & P.E. pls check my answers!!!!!**

hi, can someone pls check my answers asap!!??? 1.Select the community activity that is a healthy choice to promote fitness for all ages A.annual 5K fun run for charity*** B.annual state fair C.monthly movie in the park D.monthly laser light show at the planetarium 2.Reginald ...
*Monday, March 10, 2014 at 1:18pm*

**math**

Y=Z+14------(i) X Y Z 10 7 5 FRPM LAST TWO RATIOS: 5Y=7Z FROM EQUATION (i) 5(Z+14)=7Z Z=$35 NOW PUTTING Z=35 IN (i) Y=35+14 Y=$49 NOW FROM FIRST TWO RATIOS 7A=10B 7A=10*49 A=$70 TOTAL MONEY= $70+$49+$35=$154
*Monday, March 10, 2014 at 12:52pm*

**Please Help with Physics Problems???????**

A 0.60 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (k = 430 N/m) whose other end is fixed. The ladle has a kinetic energy of 8.6 J as it passes through its equilibrium position (the point at which the spring force is zero...
*Monday, March 10, 2014 at 5:53am*

**Physics please help?????**

(a) At a certain instant, a particle-like object is acted on by a force F=(2.9N)i-(1.7N)j+(5.7N)k while the object's velocity is v= -(3.2m/s)i+(4.5m/s)k. What is the instantaneous rate at which the force does work on the object? (b) At some other time, the velocity ...
*Monday, March 10, 2014 at 5:51am*

**English**

The first sentence has the correct terminology.
*Sunday, March 9, 2014 at 9:03pm*

**math**

first im sorry I wrote the problem wrong and the problem is 4 1/2 minus 3 5/6 and my second problem is 9 minus 3 7/8?i don't understand even with the problem they showed which is..6 1/3 minus 1 2/5,that ended up being 6 5/15 minus 1 6/15,they crossed out the first 6 and ...
*Sunday, March 9, 2014 at 8:27pm*

**math**

rename 6 1/3 to 5 4/3 now subtract 3 5/6 opps, rename first to 5 8/6, now subtract 2 3/6 or 2 1/2
*Sunday, March 9, 2014 at 8:05pm*

**math**

please,please help!im doing subtraction with renaming but don't understand.I have to estimate,then find the difference and write in simplest form.I just need help with two and may be able to do the rest on my own.6 and 1/3 minus 3 and 5/6 is the first one and 9 minus 3 and...
*Sunday, March 9, 2014 at 7:48pm*

**Ashford PHI 208**

PHI 208 Week 2 - Readings Quiz 1. Tom Regan’s view of animals is that (Points : 1) They are important but not quite as important as human beings They have rights, which means that they should never be used for human purposes They may be ethically used because they were ...
*Sunday, March 9, 2014 at 7:47pm*

**Sensor Networks**

1)Consider the uniform wireless sensor network topology shown in the picture. Assume the network covers a much larger area than the part shown, extending endlessly for purposes of a middle-sensor such as sensor A. Hexagonal coverage is provided with sensing range r= √3 ...
*Sunday, March 9, 2014 at 5:25pm*

**maths**

Ms. Sue multiplied the numerator and denominator by 2. So, 2 times 2 equals 4, and 2 times 9 equals 18. That is the first fraction. Then, Ms. Sue multiplied the numerator and denominator by 3. So, 2 times 3 equals 6, and 9 times 3 equals 27. That would also be the second ...
*Sunday, March 9, 2014 at 4:48pm*

**Chemistry**

Before a trip from New York to Boston, the pressure in the automobile tire is 2.1 atm at 280 K. At the end of the trip, the pressure gauge reads 1.88 atm. What is the new Celsius temperature of the air inside the tire?(Assume tires with constant volume). This is how I did it: ...
*Sunday, March 9, 2014 at 3:37pm*

**Chemistry**

It might change phases from liquid to gas. If you drive off all of the water you would be left with N2O5 which is where HNO3 comes from in the first place. N2O5 + H2O ==> 2HNO3 ==> H2O + N2O5
*Sunday, March 9, 2014 at 2:50pm*

**math**

Pamela Mello is paid on an incremental commission schedule. She is paid 2.6% on the first $60,000 and 3.4% on any sales over $60,000. If her weekly sales volume was $89,400, what was her total commission?
*Saturday, March 8, 2014 at 11:54pm*

**Physics**

you will first of all conevert km/h to m/s which is 105 multiply 1000 then divide by 3600= 29.7. use the formula f= ma. 1250 multiply by 9.8=12250 then use formula for work w=f multiply by distance w=12250 multiply by 29.7=363825J.
*Saturday, March 8, 2014 at 9:58pm*

**calculus**

Ice cream drips out of the bottom of an ice cream cone on a hot day at a rate of r(t) mL per second, as a child eats it slowly, where t is in seconds. If r(t) = 10 e^{-k t}, complete the definite integral expressing the quantity of ice cream lost in the first 3 minutes(s). (...
*Saturday, March 8, 2014 at 5:59pm*

**Algebra 1**

Looks good. Nice work. We'd much rather see that you are making an effort to solve the problems, rather than just getting someone else to do your assignments. Although, usually the earlier time is mentioned first, as was done in the problem.
*Saturday, March 8, 2014 at 5:45pm*

**Algebra 1**

so we want a^2 = b^3 a = b^(3/2) or (√b)^3 so pick b = a perfect square, e.g. b = 4 , then a = 8 so 8^2 = 4^3 = 64 let b = 9 , a = 27 9^3 = 27^2 = 729 let b = 16 , then a = 64 16^3 = 64^2 = 4096 let b = 25 , a = 125 25^3 = 125^2 = 15625 So the first few numbers with that...
*Saturday, March 8, 2014 at 4:49pm*

**Albegra**

I would first of all divide both sides by 20 to get the numbers a bit smaller 121/(570+r) = 107(570-r) now cross-multiply 60990 + 107r = 68970 - 121r 228r = 7980 r = 7980/228 = 35 or, look at it this way: the LCD is (570+r)(570-r) so in effect I just multiplied both sides of ...
*Saturday, March 8, 2014 at 4:34pm*

**Algebra 1**

What is the first natural number that is a perfect square and a perfect cube? Can you find the second? The third? Explain.
*Saturday, March 8, 2014 at 4:29pm*

**math**

3x^2 - 24x + 45 =0 first divide by 3 to simply x^2 - 8x + 15 = 0 (x-3)(x-5) = 0 x = 3 or x = 5 check: http://www.wolframalpha.com/input/?i=plot+y+%3D+3x%5E2+-+24x+%2B+45
*Saturday, March 8, 2014 at 3:51pm*

**Physics**

A 5.36 kg object falls freely (ignore air resistance), after being dropped from rest. Determine the initial kinetic energy, the final kinetic energy, and the change in kinetic energy for the following. (a) first meter of fall initial kinetic energy 0 J final kinetic energy ___...
*Saturday, March 8, 2014 at 3:16pm*

**Physics**

first how long before it hits ground? 83 = 4.9 t^2 t = 4.12 s so it fell for 4.12 - 1.60 = 2.52 seconds so how far did it fall in 2.52 seconds? d = 4.9*(2.52)^2 = 31 meters so it is 83 - 31 = 52 meters up
*Saturday, March 8, 2014 at 1:21pm*

**BUS 307 Operations management**

Ms. Sue which would you say is correct for number 2 I first selected D but i didnt think that was correct.
*Saturday, March 8, 2014 at 11:58am*

**Statistics**

Use David's excellent "normal distribution" calculator http://davidmlane.com/hyperstat/z_table.html click on "area from a value" enter the data, click on "between" and enter 8 and 11 to get .4467 You can enter the data directly, no need...
*Saturday, March 8, 2014 at 7:53am*

**physics**

A jet plane takes about 56 s to go from rest to the takeoff speed of 120 mph (miles per hour). What is the average horizontal force that the seat exerts on the back of a 60-kg passenger during takeoff? First make sure that each of the values are in SI units. Use 1 mile = 1609...
*Saturday, March 8, 2014 at 12:39am*

**physics**

Two forces, 1 = (3.85 − 2.85) N and 2 = (2.95 − 3.65) N, act on a particle of mass 2.10 kg that is initially at rest at coordinates (−2.30 m, −3.60 m). (a) What are the components of the particle's velocity at t = 11.8 s? = m/s (b) In what direction...
*Friday, March 7, 2014 at 9:26pm*

**English**

What quotes do you want? From bystanders? famous people? first responders? government officials? family of victims?
*Friday, March 7, 2014 at 9:00pm*

**Calc :(((((**

first cross-multiply y + y x^2 = x dy/dx + y(2x) + 2x dy/dx = 1 dy/dx(1 + 2x) = 1 - 2xy dy/dx = (1-2xy)/(1+2x) at (4, 1/4) dy/dx = (1 - 2(4)(1/4))/(1 + 2(4)) = -1/9 equation of tangent: y = (-1/9)x + b at (4,1/4) 1/4 = (-1/9)(4) + b b = 5/9 equation is y = (-1/9)x + 5/9 slope...
*Friday, March 7, 2014 at 3:41pm*

**social studies **

Who was the first Louisiana governor elected under the Constitution of 1867 ? a) Henry Watkins Allen b) Oscar Dunn c) Michael Hanh d) Henry Clay Warmoth
*Friday, March 7, 2014 at 3:12pm*

**Probability**

Alice has five coins in a bag: two coins are normal (i.e., fair with one face Heads and the other face Tails), two are double-headed (i.e., both sides are Heads), and the last one is double-tailed (i.e., both sides are Tails). She reaches into the bag and randomly pulls out a ...
*Friday, March 7, 2014 at 2:31pm*

**U.S History**

Imagine you are one of the factory workers at Lowell Mills tasked with creating the headline story for this month’s factory newspaper. Factory Workers—Factory Worker Template 1. First paragraph: Hook your reader into wanting to read your article. Explain the ...
*Friday, March 7, 2014 at 12:30pm*

**Math**

Your first two answers are wrong. 7. 750/10 = x/14
*Friday, March 7, 2014 at 11:49am*

**Math **

Find the first four terms of the sequence represented by the expression. 3n + 5 A.5,8,11,14 B.8,11,14,17 C.3,6,9,12 D.0,8,11,14
*Friday, March 7, 2014 at 10:44am*

**Algebra**

You are taking a science course in which there will be four tests, each worth 100 points. You have scores of 94,100, and 92 on the first three tests. You must make a total of 360 in order to get an A. What scores on the last test will give you an A? The solution is {s|s>__...
*Friday, March 7, 2014 at 10:36am*

**English**

Good job. All are correct. (I'd remove the second "poem" from your first answer, though, because "elegy" means a poem paying tribute to a deceased person.)
*Friday, March 7, 2014 at 6:00am*

**statistics**

a large shipment of computer chips, of which 5% are actually defective, a quality control manager decides to test chips until he finds the first defective. What is the probability that the manager finds the first defective chip on the first test? in Homework Help
*Friday, March 7, 2014 at 4:04am*

**4th grade math**

Need help with this problem. Suppose you arrange 48 counters into groups. The first group has 3 counters. Each group after that has 2 more counters than the group before. How many groups do you need to make to use all 48 counters?
*Friday, March 7, 2014 at 2:47am*

**geometry**

You eat a new kind of fruit and suffer from hives for the first time in your life. A week later, you try the fruit and the hives recur. A month later, you have a similar experience. Conclusion:
*Thursday, March 6, 2014 at 8:11pm*

**Math**

You're also using the same computer. What are the first 6 multiples of 35?
*Thursday, March 6, 2014 at 6:56pm*

**english**

The bee is not afraid of me, I know the butterfly; the pretty people in the woods Receive me cordially. The brooks laugh louder when I come, The breezes madder play. Wherefore, mine eyes, thy silver mists? Wherefore, O summer's day? 1. what makes this poem a lyric? a. It ...
*Thursday, March 6, 2014 at 5:48pm*

**English**

A seat might not be a chair but places on a couch or bench or two car seats for children left in the corner to be picked up by grandmother when she comes to take them to the concert I suppose. Listen carefully in hearing could be listen carefully in the budget hearing before ...
*Thursday, March 6, 2014 at 5:11pm*

**LA check answers? **

Midnight by Sara Holbrook When it’s Sunday and it’s midnight, the weekend put back in its chest, 5 the toys of recreation, party times and needed rest. When I lie in wait for Monday 10 to grab me by the ear, throw me at the shower, off to school and when I hear the ...
*Thursday, March 6, 2014 at 3:29pm*

**algebra 1**

Given the data, you should get a piece of graph paper (or use excel or some other graphing program) and plot the points with time on the x-axis and temperature on the y-axis. You will probably get a graph that looks something like this...
*Thursday, March 6, 2014 at 2:07pm*

**Maths**

Separate 178 into two parts such that the first part is 8 less than twice the second part. Explain!
*Thursday, March 6, 2014 at 12:02pm*

**math**

21 + 19 + 17 ... a (a+d) (a + 2d) ..... a+7d eight terms where a = 21 and d = -2 arithmetic series sum of first 8 = (8/2) (42 + 7(-2) ) = 4 (42 - 14) = 4 (28) = 112
*Thursday, March 6, 2014 at 11:29am*

**math**

Tn = a + a+d + a+2d .... + a +(n-1) d T3 = a +2d T8 = a + 7 d so a + 2d = 2 (a+7d) a + 2d = 2 a + 14 d a + 12 d = 0 a = -12 d sum of first 25 = (n/2)[ 2a +(n-1)d ] = (25/2) [ -24 d + (24) d ] LOL !!! = 0
*Thursday, March 6, 2014 at 11:23am*

**mathematics **

MATHEMATICS PLEASE HELP ME!!! In an arithmetic series the 3rd term is twice the 8th term find the first 25 terms
*Thursday, March 6, 2014 at 10:43am*

**math**

In an arithmetic series the 3rd term is twice the 8th term. Find the sum of the first 25 terms.
*Thursday, March 6, 2014 at 9:40am*

**pre-calculus**

147b^3-35b^2-19b+3 = 0 Since 147 = 7*7*3, I'd try using those coefficients first, since the inside coefficients are relatively small. A little playing around shows that T(b) = (7b-1)(7b-3)(3b+1)
*Thursday, March 6, 2014 at 12:27am*

**Chemistry**

Someone got happy with the instructions. Verbose I think. And you can't do this with the coefficients? Here is the first one. You have 10.9 mols N2 if I read that table right. You want to know mols N2H4. 10.9 mol N2 x (2 mols N2H4/3 mols N2) \ 10.9 x 2/3 = ? Or from N2 to ...
*Wednesday, March 5, 2014 at 11:13pm*

**math**

I'll show you how to do the first two problems. -n+8n=35 7n = 35 7n/7 = 35/7 n = 5 4x-7-7x=-1 -3x - 7 = -1 -3x - 7 + 7 = 7 - 1 -3x = 6 x = -2 Take it from there.
*Wednesday, March 5, 2014 at 9:24pm*

**Physics**

distance engineer moved = 500 m = .5 km average speed = (84.2 +16.4)/2 = 50.3 km/hr (during constant acceleration you can use the average of first and last for the distance and time) time = distance/speed = .5km / 50.3 km/hr = .00994 hours * 3600 = 35.8 seconds
*Wednesday, March 5, 2014 at 8:51pm*

**Math**

When Christy made tortillas for the first time, she used all the dough to make 10 tortillas. After making quesadillas, she decided that the tortillas were not large enough. The next time, using the same amount of dough, she made each tortilla the same thickness but 25% larger...
*Wednesday, March 5, 2014 at 8:11pm*

**Ethics**

I agree with your first answer, but not your second answer.
*Wednesday, March 5, 2014 at 6:27pm*

**poem**

Your rhymes don't rhyme. It's hard to rhyme John. How about making your first line -- Here's a boy named Johnny Who never had much money.
*Wednesday, March 5, 2014 at 5:47pm*

**physics**

A dust particle carrying a charge of is 2 mm to the left of another dust particle carrying a charge of . Find the magnitude and direction of the elec- tric force on the first particle.
*Wednesday, March 5, 2014 at 5:38pm*

**Math.**

the first one I am sure is a. Scroll down and look at where this was posted a few minutes ago.
*Wednesday, March 5, 2014 at 4:14pm*

**Algebra**

A Piece of rope that is 63 meters long is cut into three pieces such that the second piece is twice as long as the first and the third piece is three meters longer than the second. Find the length of each piece. 2x+3x+x=63 --------------------------- need to be more orderly ...
*Wednesday, March 5, 2014 at 3:44pm*

**social studies**

I suspect Scandinavia. Sweden settled Delaware first but I wonder why the Dutch in New York are left out. http://www.colonialswedes.org/History/History.html
*Wednesday, March 5, 2014 at 3:29pm*

**Algebra**

Erin has three more dimes than nickles and twice as many quarters as dimes. she has a total of $5.05 How many of each type of coin does Erin have 5.05= 2q-d-3d-n A Piece of rope that is 63 meters long is cut into three pieces such that the second piece is twice as long as the ...
*Wednesday, March 5, 2014 at 3:28pm*

**social studies **

The first immigrants to the United States were mainly from England, Scotland, Ireland, Germany, and? a. Russia. b. Italy. c. Scandinavia. d. Greece I think its either A or C please help
*Wednesday, March 5, 2014 at 3:23pm*

**mathematis**

I guess the first term is -4 and the difference is a = 3 Term n = term 1 + (n-1) a Term n = -4 + (n-1) 3 for example Term 3 = -4 + 2(3) = 2 , good, that works so Term n = -4 + (n-1)3 = 74 3(n-1) = 78 n-1 = 26 n = 27
*Wednesday, March 5, 2014 at 3:07pm*

**science**

Since this is not my area of expertise, I searched Google under the key words "newtons first law" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=newtons+first+law&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*Wednesday, March 5, 2014 at 2:30pm*

**English III**

Neat People vs. Sloppy People By Suzanne Britt I’ve finally figured out the difference between neat people and sloppy people. The distinction is, as always, moral. Neat people are lazier and meaner than sloppy people. Sloppy people, you see, are not really sloppy. Their ...
*Wednesday, March 5, 2014 at 12:36pm*

**Math help**

set everything to zero, then you can factor. #4 6s^2-17s+12 = 0 You know the factors will look like (6x-?)(x-?) or (3x-?)(2x-?) So, since -17 is fairly large, we will probably have the first (6s-3)(s-4) gives -27s too big (6s-4)(s-3) gives -22s still too big (6s-6)(s-2) gives...
*Wednesday, March 5, 2014 at 11:58am*

**math**

sales for the first four months of the year were as follows: jan.5282 feb.4689 mar.3029 apr.6390 find he average monthly sales.(round off your answer to the nearest dollar.
*Wednesday, March 5, 2014 at 10:55am*

**chemistry**

Raise your deductibles. A deductible is the cash which have to come from the own pocket after having a reduction prior to anything comes from the insurance QuotesChimp's. Medical insurance policy usually will get a money200 deductible, this means before any benefits are ...
*Wednesday, March 5, 2014 at 8:22am*

**college physics 1**

Reviewing Interactive Solution 5.46 will help in solving this problem. A stone is tied to a string (length = 1.29 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next...
*Wednesday, March 5, 2014 at 3:36am*

**science**

Whta is newtons first law?
*Wednesday, March 5, 2014 at 12:04am*

**AED**

This is the first page of what I found at National Access Network website. 1 SOUTH DAKOTA Char Gatje, Director of Research South Dakota Education Association I. GENERAL BACKGROUND State The current state aid formula was passed by the 1995 legislature and is based on a per ...
*Tuesday, March 4, 2014 at 11:47pm*

**algebra**

amount invested at 5% --- x amount invested at 8% --- y x+y = 5000 (5/100)x + (8/100)y = 331 times 100 5x + 8y = 33100 first equation times 5 5x + 5y = 25000 subtract them: 3y = 8100 y = 2700 take over....
*Tuesday, March 4, 2014 at 11:31pm*

**algebra**

Mary has a total of $5000 invested in two accounts. One account pays 5% and the other 8%. Her interest in the first year was $331. Write and solve a system of equations to find out how much she has invested in both accounts.
*Tuesday, March 4, 2014 at 11:14pm*

**physics**

A stone is tied to a string (length = 1.25 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the maximum tension in ...
*Tuesday, March 4, 2014 at 10:19pm*

**Still waiting for help...**

How did the cultural contact between Europeans and the First Nations affect the ways of life of people who lived on the Rupert river?
*Tuesday, March 4, 2014 at 9:52pm*

**algebra (solve for y)**

woops there is a 2 in front of the first e&(2y). Proper equation: 0=2e^(2y)-e^(y)
*Tuesday, March 4, 2014 at 9:47pm*

**Algebra 2**

(1,4),(6,-6)= y=(1/2)x-(3/4) m = (-6 -4)/(6-1) = -10/5 = -2 so your m = +1/2 check x ---> (1+6)/2 = 7/2 y ---> (4-6)/2 = -1 so (7/2 , 1) 1 = (1/2)(7/2) + b 4/4 = 7/4 + b b = -3/4 y = (1/2) x - 3/4 I like your first answer
*Tuesday, March 4, 2014 at 9:01pm*

**Hstory help asap**

How did the cultural contact between Europeans and the First Nations affect the ways of life of people who lived on the Rupert river?
*Tuesday, March 4, 2014 at 7:52pm*

**Math**

divide first row by 8 to get 1 in upper left 1 1/4 -17/2 add 7 times new first row to second to get 0 below the one 1 +1/4 -17/2 0 +3/4 -9/2 subtract 1/3 times row 2 from row 1 to get rid of that 1/4 in row 1 1 0 -7 0 3/4 -9/2 multiply second row by 4/3 to get 1 in 2,2 spot 1 ...
*Tuesday, March 4, 2014 at 7:51pm*

**History**

Are you asking about the first nations of Canada or the first nations in the world? Or somewhere else?
*Tuesday, March 4, 2014 at 7:40pm*

**History**

Where did the first nations settle ?
*Tuesday, March 4, 2014 at 7:36pm*

**health**

Now think about each of those. The only one that is hindered by exercise is the first, diabetes
*Tuesday, March 4, 2014 at 7:34pm*

**algebra**

A = 450 - C 70A + 40C = 27750 Substitute 440-C for A in second equation and solve for C. Insert that value into the first equation and solve for A. Check by inserting both values into the second equation.
*Tuesday, March 4, 2014 at 3:45pm*

**help**

can anyone answer this...if you want me to try first i came up with the answer A. for the following question Which of the following best describes a way in which the United States has helped the Mexican economy to grow? A.allowing Mexican workers in the United States to send ...
*Tuesday, March 4, 2014 at 3:10pm*

**Chemistry Help Please!!!**

Boric acid, H3 BO3, is a triprotic acid that dissociates in three reactions. The first dissociation step is: H3BO3 ⇌ H+ + H2BO3, Ka1 = 7.3 x 1010; the second dissociation step is: H2BO3 ⇌ H+ + HBO32, Ka2 = 1.8 x 1013; and the...
*Tuesday, March 4, 2014 at 6:49am*

**Chemistry**

Divide the titration curve into 4 parts. a. beginning b. between beginning and eq pt. c. eq pt d. after eq pt. First, determine mL to eq pt. mLacid x M aci = mL base x M base and that determination tells you how to divide into the four part. a.......... HClO ==> H^+ + ClO...
*Tuesday, March 4, 2014 at 12:08am*

**AP Chemistry**

mmols HCl = 252 mL x 2.5M = about 630 mmols Ba(OH)2 = 343 x 2.8 = about 960 but you should confirm all of the calculations Some are estimates. 2HCl + Ba(OH)2 ==> BaCl2 + 2H2O First, which is the limiting reagent (LR) Convert mmols HCl to mmols BaCl2. That's 630 x (1 mol...
*Monday, March 3, 2014 at 11:13pm*

**physics**

A 4.4kg ball with a velocity of 4.6m/s in the +x-direction collides head-on elastically with a stationary 2.1kg ball. Part A What is the speed of the first ball after the collision? Part B What is the direction of the velocity of the first ball after the collision? What is the...
*Monday, March 3, 2014 at 10:47pm*

**Science- Brady , Ms. Sue , Damon**

Also, try looking the question up on Google. I found Open Study on the first page as the first site. Hope this again, helps! :)
*Monday, March 3, 2014 at 8:49pm*

**Math**

A family left their house in two cars at the same time. One car traveled an average of 7 miles per hour faster than the order. When the first car arrived at the destination after 5 1/2 hours of driving, both cars had driven 599.5 miles. If the second car continues at the same ...
*Monday, March 3, 2014 at 8:36pm*

**please check(Social studies)**

Only the first one (11) is right. Please read your book carefully.
*Monday, March 3, 2014 at 8:31pm*

**Math**

oh, please. What is the first and most fundamental trig identity you ever learned? cos^2 + sin^2 = 1 right? Time for the duhh! and head slap.
*Monday, March 3, 2014 at 7:14pm*

**Please help Math**

a. Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine: (cos^4)x (or cos*x to the 4th power) b.Use an appropriate Half- Angle Formula to Find the Exact value of the expression: 1. tan 15(Degrees) 2. cos 3pi/8(Radians)
*Monday, March 3, 2014 at 6:16pm*

**Chemistry 2**

This is a first order reaction and will be answered by using Damon's answer to the second order question.
*Monday, March 3, 2014 at 6:10pm*

**Science -Check Answers-**

first is ok second no by conservation of momentum the velocity will remain the same until an outside force ACCELERATES it F = m A
*Monday, March 3, 2014 at 6:05pm*

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