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December 20, 2014

Posts by Kyle


Total # Posts: 812

5th grade math
I need to name ten ways I can use number?
August 2, 2011

Chemistry
You are given 73 mL of CO2 at 0.69 atm. What volume (in mL) would the CO2 occupy at 0.67 atm if the temperature is maintained at a constant 25 °C.
July 30, 2011

Chemistry
What mass (in grams)of KNO3 would have to be decomposed to produce 29 L of oxygen measured at STP?
July 29, 2011

Physics
A 400.0-m-wide river flows from west to east at 30.0 m/min. Your boat moves at 100.0 m/min relative to the water no matter which direction you point it. To cross this river, you start from a dock at point A on the south bank. There is a boat landing directly opposite at point ...
July 27, 2011

physics
A 400.0-m-wide river flows from west to east at 30.0 m/min. Your boat moves at 100.0 m/min relative to the water no matter which direction you point it. To cross this river, you start from a dock at point A on the south bank. There is a boat landing directly opposite at point ...
July 26, 2011

Physics
I got the x-component to be: 10+8.66+3.42 which is 22.08. But I also have to divide that by the total time that the ant traveled, right? So that time would be 5.3? I got 4.166 when I divided it but the correct answer it supposed to be 3.19. I really don't know how to get ...
July 21, 2011

Physics
An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.00 s. It then turns left 30.0 degrees and walks in a straight line another 10.0 cm in 1.90 s. Finally, it turns another 70.0 degrees to the left and walks another 10.0 cm in 1.40 s. A. ...
July 21, 2011

Physics
An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.00 s. It then turns left 30.0 degrees and walks in a straight line another 10.0 cm in 1.90 s. Finally, it turns another 70.0 degrees to the left and walks another 10.0 cm in 1.40 s. A. ...
July 21, 2011

algebra 2
Find the inverse of the function. f(x) = 10^x + 2
July 16, 2011

algebra 2
Barry Newman's savings account has a balance of $2707. After 4 years, what will the amount of interest be at 5% compounded annually?
July 16, 2011

algebra 2
$9000 is invested at 8% compounded quarterly. In how many years will the account have 20) grown to $11,000? Round your answer to the nearest tenth of a year.
July 16, 2011

algebra 2
Rewrite as a single logarithm. 5 logb m -6/5 logb n +1/3 logb j - 2 logb k
July 15, 2011

Chemistry
How many milliliters of a 2.5 hydrochloric acid solution would be needed to react completely with 32.0 grams of magnesium metal
June 16, 2011

Conservation of energy
Can someone explain to me what happens when you take a slap shot in hockey according to conservation of energy? I think that when you wind up you have potential energy, then when you swing the stick towards the puck you have kinetic energy, then when the stick flexes you have ...
June 13, 2011

Chemistry
A 0.400 gram sample of white powder contains 0.141 of potassium, 0.115 grams of sulfur, and 0.144 grams of oxygen. what is the empirical formula?
May 31, 2011

math
3 ones, 4tenths, 5 hundredths and 2 tens = ?
May 4, 2011

math
5.4= 5 4/10
May 3, 2011

math
write as mixed numbers 3.2= 5.4=
May 3, 2011

science
Which of the following compounds has more than one some; PtCl_5NH_3, Co(BH_3)_4Cl_2, Pt(Co)_2Cl_2, Rb_3[Cr(CN)_6]
April 30, 2011

math
4 tenths, 5 hundreds, and 6 hundredths = ?
April 28, 2011

physics
Above answer is completely wrong.. it seems he forgot that it's an initial value problem
April 5, 2011

math
5+(3x3-3) / 2 =
April 5, 2011

math
What is the union of x and y? X. (3,6,9) Y. (5,10,15)
March 27, 2011

chemistry
Calculate the pH after 0.15 mol of NaOH is added to 1.00 L of the solution that is 0.50 M HF and 1.01 M KF
March 25, 2011

MATH
THE MIDDLE IS 14 & 23 = 37/2 = 18.5 WHAT IS THE HUNDREADTH ????
March 24, 2011

MATH
FIND THE MEDIAN OF THE FOLLOWING PROBLEM. ROUND TO THE NEAREST HUNDREADTH. 8,9,10,12,14,23,23,29,34,37
March 24, 2011

physics
A hollow, thin-shelled ball of mass rolls along a horizontal surface with a translational speed of .
March 22, 2011

geometry
In the parallelogram above, line segment AE equals 12 mm. Line segment BE equals 16 mm. What is the length of line segment CD in the parallelogram above?
March 17, 2011

calculus
let f(x) = Sec (x) in the interval 0<x<pie/3. What is the average rate of change of f(x) with respect to x in this interval?
March 10, 2011

math
How do the acute and obtuse angles compare to the right angle?
March 9, 2011

chemistry
What is the vapor pressure (in mm Hg) of a solution of 12.5 g of glucose ( C6H12O6) in 75.0 g of methanol (CH3OH) at 27 degrees celcius? The vapor pressure of pure methanol at 27 degrees celcius is 140 mm Hg.
March 9, 2011

chemistry
How many grams of water should you add to 31.0g of sucrose,C12H22O11, to get a 0.855 m solution?
March 9, 2011

math
that is all the information given
February 28, 2011

math
beth has a box of shirts.one half of the shirts are small,2/5 of the shirts are meduim,and 5 shirts are large.how many shirts are in the box?
February 28, 2011

math
show why two thirds of 9 and one third of 18 name the same number.use counters or draw a picture to explain your reasoning.
February 24, 2011

Physics
you actually have to subtract the frictional force not add it
February 21, 2011

english
what is number facts about the topic gel pens
February 16, 2011

social studies
unscramble siclalacs
February 16, 2011

Physics
0.11 m, so the center of mass of that part of the chain is 0.055 m below edge. W = mgH = (0.021/3)kg*g*(0.055) = ____J notice that the kg is different.
February 16, 2011

Physics
A 55 kg skier is going down a slope with an angle of 47 degrees. Mk= 0.15. How fast is he going after 6 seconds?
February 15, 2011

Physics
A 200N sign hangs and makes a 15.5 angle with the horizontal. What is the Tension in each rope?
February 15, 2011

7th grade introduction/conclusion
Sorry for a useless reply, but Kathryn, if you wrote a novel you wouldn't be using "u" and "ur"
February 10, 2011

math
What is the value of 3/14 rounded to the nearest fourth?
February 9, 2011

9th grade Math
85 x 8 = 680
January 22, 2011

Social Studies 20-1
Could you tell me what kind of nationalism they might be? (just so i get an idea)
January 17, 2011

Social Studies 20-1
Can someone explain to me what these sourses mean and how they relate to nationalism? (just so i have an idea of what i am going to write about) SOURCE 1 "the lines of red are blood, nobly and unselfish shed by men who loved the liberty of their fellowmen more than they ...
January 17, 2011

world history
Prehistory ended with the invention of what?
January 17, 2011

calculus
Find the point on the curve y=x^(1/2) that is a minimum distance from the point (4,0). My book says you use the distance formula. Then you let L = D^2 because the minimum value of D^2 will occur at the same value of x as the minimum value of D. What is L, though.
January 16, 2011

Math
Thank you!
January 15, 2011

Math
DETERMINE the equation of the circle that has the following three points on its circumference: A(1,5), B(3,7) and C(5,5).
January 15, 2011

math 20
how did u get -3^3 and 4^2?
January 15, 2011

physics
The velocity of a diver just before hitting the water is -8.4 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.82 s of the dive? This problem with different numbers has been done on here before, but when i ...
January 14, 2011

biology
A eukaryotic gene typically has all of the following features except: a) an operator b) control elements c) a promoter d) introns e) a terminator
January 13, 2011

fraction x whole number
the problem is 7/10 x 30 = how do you convert and get the answer
January 4, 2011

concavity
The graph of the function y= x3+6x2+7x-2cos x changes concavity at x=
December 31, 2010

chemistry
okay thanks...but dont you have to use roman numerals for elements in the "d" block?
December 14, 2010

chemistry
write the correct formula for the compound listed below: 1. Silver Oxide my answer: AgIIO correct?
December 14, 2010

english
can feelings be personified or is it more a projection? i am writing an essay on Life of Pi and i would like to say that Richard Parker is a projection of Pi's fears. Does the use of the word projection make sense?
December 14, 2010

math
if you find the decimal value for each of these you will be able to easily tell the order. for example: the decimal value for the fraction 3/4 is .75 hope this helps!
December 12, 2010

english
okay thanks! because i am having a difficult time writing an essay i have! but that helps thanks
December 12, 2010

english
when writing an essay is this a good way to do it?: thesis statement body paragraphs conclusion intro
December 12, 2010

chemistry
Butane has a heat of vaporization of 22.44 kJ/mol and a normal boiling point of -0.4 degrees C. A 250mL sealed flask contains 0.5g of butane at 25 degrees C. How much butane is present as a liquid? If the butane is warmed to 25 degrees C, how much is present as a liquid
December 10, 2010

Algebra
I am stuck... find the real solutions of the equation x to the 4th power minus 20x squared plus 64 equals 0
December 8, 2010

chemistry
What is the expected van't Hoff factor for NaC2H3O2 in an aqueous solution, assuming 100% dissociation.
December 6, 2010

English
The problem is my thesis statement. That is the step I am stuck on.
December 6, 2010

english
hey its me again... i think i need to reword my issue. i am having trouble clearing up my thesis. I feel like i have the idea but it doesnt set me up to write an organised paper. the idea being that if Richard is God and Richard and Pi are one then Pi is God
December 6, 2010

10th grade
wait let me reword my question... i am having trouble clearing up my thesis. I feel like i have the idea but it doesnt set me up to write an organised paper.
December 6, 2010

10th grade
I am having a hard time starting my paper on Life of Pi by Yann Martel. My thesis is: If Richard Parker is Pi Patel then Pi is God. I dont know how to begin.
December 6, 2010

English
What is the Greastest injustice of slavery according to douglass?
December 6, 2010

English question
Why do you think Douglass says of the killing of slave Demby ‘in an instant poor Demby was no more. His mangled body sank out of sight, and blood and brains marked the water where he stood.”? To me it seem as if hes sayint how he died instantly but idk i need more...
November 30, 2010

math
over 9000
November 18, 2010

geometry
find the measure of an angle that is supplementary to an angle of size 35 degrees, 1 inch, 51 inches
November 17, 2010

7th grade health
how much energy you use when you workout?
November 16, 2010

chemistry
Reactants for the following reaction are placed in a 10.0 L flask held at 250 degrees C and at initial partial pressures of 1.00 atm each. Calculate the final pressures of each reactant and product, assuming the reaction goes to completion. 4 N2O(g) + CH4(g) = 4N2(g) + 2H2O(g...
November 11, 2010

Math
A bag contains four balls. Three are red, and the fourth is either red or blue, selected with equal probability. A ball is drawn from the ball and it is red. What is the probability that one of the balls still in the bag is blue?
November 7, 2010

Math
At Small Town High there are 100 students, each of whom takes at least one of biology, chemistry, or physics. There are 50 students in biology, 60 in chemistry, and 70 in physics. If 24 students are enrolled in exactly two of these classes, how many students are in all three?
November 7, 2010

english
Call of Duty, Halo, Mortal Kombat, Red Steel, etc.
November 7, 2010

math
if (x^65535)-1 is divisible by the prime number 65537, x is an integer, and 0 ≤ x < 65537, how many values of x are possible?
November 7, 2010

math
t=1/8 16t=2 s=1/4 32s=6 Q=1/64
November 7, 2010

AP Chem
Molarity = moles/Liters so moles = Molarity * Liters moles = 3.60 M * .455 L = 1.64 moles of Al 1.64 moles Al / 4 moles Al = .4095 (this number is how many times the reaction can be done) .4095 moles * -3339.6 kj/mol (negative because you're doing reverse reaction and ...
November 7, 2010

Chemistry
For each mole of CH4 reacted there is 50.38 kj released. 137 kj * (1 mol/50.38 kj) = 2.719 moles of CH4. 4 sig figs additional info: 50.38 is positive because it's asking how much heat is produced (released) and if you say -50.38 kj is released it's like a double ...
November 7, 2010

trig
3tan(3x) = sqrt(3) Solve the equation for exact solutions of the interval [0,2pi).
November 4, 2010

Physics
which end are you looking for?
November 3, 2010

Physics
Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above the Earth's surface if its mass is 1600 kg. I've done all the work but I can't seem to get the right answer, please show work and answer.
October 28, 2010

exponents math
evaluate (-1)^3= evaluate -1^3= evaluate (-1)^2= evaluate -1^2=
October 28, 2010

figurative language
plz help me i am in 5th grade and need help on similies & metaphores about the book number the stars. it asks "it was an odd word: pride." meaning proud, i think
October 25, 2010

Physics
Hi everyone, finished all my utexas physics homework, save this last question... I don't quite why I'm not getting the right answer. Any help offered will be appreciated, it could lead me to the right answer :) P.S.---- I've already imputed the following four ...
October 24, 2010

Physics
Hi everyone, finished all my utexas physics homework, save this last question... I don't quite why I'm not getting the right answer. Any help offered will be appreciated, it could lead me to the right answer :) P.S.---- I've already imputed the following four ...
October 24, 2010

spanish
Querida Beth: 1) (blank) esta todo bien y esperamos que 2) (blank) tambien lo este. 3) (blank) lo pensemos y lo conversemos, tu padre y yo no estamos contentos con tu viaje. 4) (blank) en nuestras vidas estamos muy preocupados porque creemos que eres mu joven para hacer ...
October 20, 2010

algebra
How to factor 15x2+4x-3
October 11, 2010

chemistry
Not sure how to do any of this. Please help!!! A sample of the compound prepared in this experiment, weighing .1021g, is dissolved in HNO3 and diluted to a volume of 100mL. A 10mL aliquot of that solution is mixed iwth 10mL 6 M NH3. The [Cu(NH3)4 2+] in the resulting solution ...
October 7, 2010

Math
How do you solve this? (3x+2)(3x^2+5x-4)
September 29, 2010

physics
Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?
September 27, 2010

Chemistry
Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?
September 27, 2010

chem
What happens if ph meter isn't calibrated. How will it influence ka on a weak acid
September 22, 2010

physics
A freight train has a mass of 1.7 multiplied by 107 kg. If the locomotive can exert a constant pull of 7.4 multiplied by 105 N, how long does it take to increase the speed of the train from rest to 68 km/h?
September 21, 2010

Chemistry
Suppose that the KMnO4 (aq) were standardized by reaction with As2O3. As2O3 + MnO4- + H+ +H2O yields H3AsO4 + Mn2+ (not balanced). If a 0.1322-g sample that is 99.16 % As2O3 by mass had been used in the titration, how many milliliters of the 0.02140 M KMnO4 (aq) would have ...
September 21, 2010

chemistry
f 89 of heat are added to a pure gold coin with a mass of 15 , what is its temperature change? Specific heat capacity of gold is 0.128 .
September 20, 2010

chemistry
An unknown substance has a mass of 17.3 . When the substance absorbs 1.557×102 of heat, the temperature of the substance is raised from 25.0 to 45.0 . What is the most likely identity of the substance?
September 20, 2010

chemistry
Water (2690 ) is heated until it just begins to boil. If the water absorbs 5.29×105 of heat in the process, what was the initial temperature of the water?express answer in Celsius.
September 20, 2010

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