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Posts by Kyle

Total # Posts: 1,109

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

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

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 ...

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?

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

math
5.4= 5 4/10

math
write as mixed numbers 3.2= 5.4=

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]

math
4 tenths, 5 hundreds, and 6 hundredths = ?

math
Twenty million five hundred thousand in expanded notation using exponents

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

math
5+(3x3-3) / 2 =

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

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

MATH
THE MIDDLE IS 14 & 23 = 37/2 = 18.5 WHAT IS THE HUNDREADTH ????

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

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

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?

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?

math
How do the acute and obtuse angles compare to the right angle?

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.

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

math
that is all the information given

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?

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.

Physics
you actually have to subtract the frictional force not add it

english
what is number facts about the topic gel pens

social studies
unscramble siclalacs

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.

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?

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

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

math
What is the value of 3/14 rounded to the nearest fourth?

9th grade Math
85 x 8 = 680

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

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 ...

world history
Prehistory ended with the invention of what?

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.

Math
Thank you!

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).

math 20
how did u get -3^3 and 4^2?

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 ...

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

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

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

chemistry
okay thanks...but don't you have to use roman numerals for elements in the "d" block?

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

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?

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!

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

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

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

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

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

English
The problem is my thesis statement. That is the step I am stuck on.

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

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.

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 don't know how to begin.

English
What is the Greastest injustice of slavery according to douglass?

Chemistry
66.7 g

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...

math
over 9000

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

7th grade health
how much energy you use when you workout?

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...

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?

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?

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

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?

math
t=1/8 16t=2 s=1/4 32s=6 Q=1/64

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 ...

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 ...

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

Physics
which end are you looking for?

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.

exponents math
evaluate (-1)^3= evaluate -1^3= evaluate (-1)^2= evaluate -1^2=

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

College Physics
Answer is 0 m/s. At maximum displacement there is no velocity

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 ...

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 ...

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 ...

physics
Answer is 13.5 J/K. Use the formula (Delta S) = -(n)R(aLNa + bLNb) Where a and b are mole fractions Delta S = -(5.0 mol)(8.314)(.1LN(.1) + .9LN(.9))

algebra
How to factor 15x2+4x-3

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 ...

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

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

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

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

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?

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 ...

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 .

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?

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.

science
What are 3 items you can mix together and then they will settle into 3 different layers?

physics
A hare is resting behind a rock, when he suddenly sees a tortoise cruising by at a constant 4.0m/s. The hare, literally at rest initially, decides he must catch up with the tortoise, to save face. So, he accelerates uniformly to 6.0m/s in 4.0 seconds. Once he reaches 6.0m/s, ...

physics
A car brakes, changing from 18 m/s to 6.0 m/s in 3.0 seconds. How far did it travel in this time?

physics
Annie is walking to school leisurely at a speed of 1.0 m/s for the first half of her trip. She then remembers that her physics teacher told her that she must average 2.5 m/s to make it to school on time. Realizing she might be late, she starts running. However, after a quick ...

Physics
and is the final velocity 45/7?

Physics
Is the initial velocity 0?

Physics
An airplane can reach a takeoff speed of 45 m/s (from rest) in 7.0 seconds. What is the minimum runway length required for a safe takeoff?

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