Friday
July 25, 2014

Posts by J


Total # Posts: 713

Math
How do you confirm this? 1500000 square miles to 7334000 square miles in six months is growing at about 22 square miles a minute.

physics
What factors directly affect how much air drag an object experiences?

geometry
Two angles are supplementary. They have measures of (7x+2) and (3x-2), respectively. What is the value of x?

CJS240
I have done that too, that is how I got the list that you gave me.

CJS240
I have looked at these sites and not finding anything here that is what i am looking for. For clarification, I am looking for how the juvenile justice system affects probation

CJS240
Need information on how probation can help in the rehabilitation of juveniles

college
400/50= 8 hours, now that I did your work for you 2nd grader, your welcome

science
is dilution of a solution the answer to acid or base pollution in this world? why?

chem
.070g caffeine dissolved in 4 mL water. caffeine is extracted from aqueous solution 3 times with 2mL portions of methylene chloride. calculate total amount of caffeine that can be extracted into the 3 portions. caffeine has a distribution coefficient of 4.6 between methylene c...

chem
.070g caffeine dissolved in 4 mL water. caffeine is extracted from aqueous solution 3 times with 2mL portions of methylene chloride. calculate total amount of caffeine that can be extracted into the 3 portions. caffeine has a distribution coefficient of 4.6 between methylene c...

algebra
a is a negative real number

chemistry
Using the volume 1.42mL of 95% ethyl alcohol that's required to dissolve 0.3g at 78 C, how do i find how much sulfanilamide that will remain in the mother liquor after the mixture is cooled to 0 C? (at 0 degrees=14mg/mL is the solubility) thanks

organ chem
Using the volume 1.42mL of 95% ethyl alcohol that's required to dissolve 0.3g at 78 C, how do i find how much sulfanilamide that will remain in the mother liquor after the mixture is cooled to 0 C? (at 0 degrees=14mg/mL is the solubility) thanks

SOC120
I am having much difficulty location information on Nigeria which is what I Chose. i cannot use wikipedia as this is not solid info

SOC120
• Compose a 200- to 300-word response to the following: • • Explain urban growth trends in the world’s poorest countries. What causes urbanization in poor countries? • • Choose a major city in a poor, developing country and research how urbanizati...

organ chem
Why is thymol only slightly soluble in water, but very soluble in 1.0 M NaOH?

english
gdf

math
Let g(x)=-x^2+4x+1 Find the following g(-1/x)

Math
1+1+1=3 cannot be written as a muliplication sentence because there is no equal groups. Do you agree? Explain.

spanish
what does it mean when it says... que clase de musica es la mas abburida? is that the type of music? like rock, or hip hop, or rap? that kind of question?

physics
A 1 kg block drops from a table and accelerates towards the floor at 10 m/s2. What is the force?

math
Are three collinear points are always also coplanar points.

english
He tends to worry people such as his mom, sister, and Sonia (Sofya). He also likes to make people think a lot such as Porifiry (spell check). That's all i can think of for now. I am also writing this essay haha

7th grade
(a+15)(a+7)

science
describe the relationship between an element's placement in the periodic table and the number of electrons in its outermost energy level

geometry
IF CIRCLE HAS 10 INCH DIAMETER HOW MANY INCHES ARE IN THE CIRCOMFERENCE?

psychology
The Outer Person

Persuasive Essay
why do you think so?

Persuasive Essay
what do you think about the new healthcare reform?

english
Should dying people be kept on life support?

marketing
timeliness in handling a customer's orders, questions a nd complaints is not important. true or false?

compose
if 3.85 L of carbon monoxide was collected over water at 25 degrees celsius and 689 mmHg how many grams of formic acid were consumed?

science
why is the angle of rays of sunlight so important in determining the amount of energy collected by the earth

math
An item regularly priced at is on sale at a discount of . What is the sale price of the item?

algebra
what would be the cost of something that is on sale for 40% off if the regular price is $180

chemistry 11
mrs. lawsons chem ll? tfox?

economics
How does the devaluation of a currency reduce or increase a trade deficit? Can you give a real world example?

Facility Planning
has anyone done a paper about hospital/clinic that is being renovated or needs re-construction?

social studies
according to maslow,our lowest or most fundemental needs and motives center around a:issues of esteem b:the need for love and belonging c:self-actualization d:physical needs

Physics
Help me anyone please

chemistry
Hydrochloric acid can be prepared using the reaction described by the chemical equation: 2 NaCl(s) + H2SO4(l) ----> 2 HCl(g) + Na2 SO4(s). How many grams of HCl can be prepared from 393 g of H2SO4 and 4.00 moles of NaCl?

Gr. 12 Data MAnagement
Don't know why, thats just what the back of the book says :s

Gr. 12 Data MAnagement
wrong its 210

algebra word problem
I still don't understand it

algebra word problem
find three consecutive positive numbers such that the product of the first and third minus the second, is 1 more than 6 times the third

science-chem
25 mL = .025 L, not .25L

science
Use kinematics to calculate the height for the firstball, which is Vf=0 a=9.8 t=1.5 because you take the total time it take to go up and come back down and divide it by 2. 3/2 = 1.5 getting an initial velocity of Voy= 14.7m/s V = t(9.8) = 1.5(9.8) = 14.7 This must have the sam...

math
Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 mph and Train B is traveling 64 mph. Train A passes a station at 7:15 AM. If Train B passes the same station at 7:45 AM, at what time will Train B catch up to Train A?

calculus
Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life (the time it takes for half the amount of a sample to decay) of approximately 5730 years. Using this known piece ...

pre calc
Find a linear factorization of: f(x) = x^3 + 5x - 6. thanks.

chemistry
The oxidation reaction would be K yields K+ + e- (When adding the reduction-half and oxidation-half, the oxidation equation will be multiplied by 2.) Hope this helps.

Chemistry
You have to balance the charges of the ions in the compound. Fluorine has a charge of -1, so when magnesium replaces the iron (III), the new compound is MgF2. Now all that is left to do is balance the reaction. The sulfate group has a charge of -2, meaning lithium sulfate is L...

chemistry
An aqueous solution with a pH of 3.00 is diluted from 2.0 L to 4.0 L. Wht is the pH of the diluted solution?

6thgrade math
yes =}

com
Prepare a 1,050- to 1,750-word paper in which you analyze the ethical and legal aspects associated with harrassment, addressing the following topics in your paper: 1.Describe the current moral and ethical issues faced by managers involving your selected topic. 2.Explain how th...

math
You can tell this isn't a page dealing with English because no one here knows how to speak it properly.

Economics (MRS)
Aargh font didn't come out right. I meant MRS of U(x,y) = (xy)^0.5 (ie sqaure root of xy) and (x+y)^0.5.

Economics (MRS)
What is the marginal rate of substitution for U(x,y) = ãxy? ,ã(x+y)?

boy scouts
what is the meaning of life

Calculus
Evaluate the integral: sin^2(5x)cos^2(5x)dx

Calculus
How do I evaluate this integral: x^9cos(x^5)dx Hint: First make a substitution and then use integration by parts.

Chemistry
How do I prepare a solution of 0.0025M Fe3+ by dissolving the appropriate amount of ferric ammonium sulfate in 500 cm^3 of 0.0025M sulfuric acid?

biology
which objective of a compound microscope would show the largest feild of view

Math
How long after 7:30 are a clock's minute hand and hour hand 50 degrees apart? The answer is 17.3 minutes, but I don't know how to get it. Help!

Math
The half life of Uranium 230 is 20.8 days. How long would it take for 20% of Uranium 230 to decay?

Math
How long after 7:30 are a clock's minute hand and hour hand 50 degrees apart?

math
how would you find (4x + 3)squared

PHYSICS
A banked circular highway curve is designed for traffic moving at 60 km/h. The radius of the curve is 205 m. Traffic is moving along the highway at 40 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the ...

AP Physics
While two forces act on it, a particle is to move at the constant velocity v = (3 m/s) i - (4 m/s) j. One of the forces is F1 = (2 N) i + (- 6 N) j. What is the other force? ( _____ N) i + ( _____ N) j Only two horizontal forces act on a 3.0 kg body that can move over a fricti...

CHEMISTRY
I've been trying to do this problem but I would get confused and stuck.. Consider a sample of a hydrocarbon at 0.959 atm and 298 K. Upon combustion the entire sample in oxygen, you collect a mixture of gaseous carbon dioxide and water vapor at 1.51 atm and 375 K. This mixt...

Statistics
Question 1 Use the following research question and data for questions 1 - 6. A researcher is examining the effects of a computer-based training program designed to teach algebra. The researcher randomly selects subjects for two groups and gives one group the computer training ...

Math
WELLIT IS ABOUT WHEN THY WRITE TO ROUND TO THE NEAREST NUMBER THE HAVE TO SAY THOUSND MILLON OR TENS YOU LOOK AT THE NUMBER AND CIRCLE IT

physics
Why do we cross multiply. I though you multiply 100 x 5 then 75 x 5 and then divide and multiply by 100

Math check 3
(a+15)(a+7)

anatomy
what kind of cells would form a scar on the head after cancer had been removed.

chemistry
5.2*10^5

HCA 270 Appendix C
Im aslost as you

english
Which sentence is correct the one with or without the comma? In the beginning there was man. In the beginning, there was no man.

Physics
A force of 2.3 N is exerted on a 6.6 g rifle bullet. What is the bullet's acceleration

physics
ohh..sorry! It didn't turn out the way I typed it

physics
Calculate the energy released in the fusion reaction 2 3 4 1 1 H + 1 H->2 H +0 n. The atomic mass of 3 1 H (tritium is 3.016049 u. I am lost! help please!

physics
A sample of charcoal from an archaeological site contains 55 g of carbon and decays at a rate of .877 Bq. How old is it? ok I am totally lost, I don't know where to start

Physics
A sample of charcoal from an archaeological site contains 55 g of carbon and decays at a rate of .877 Bq. How old is it? ok I am totally lost, I don't know where to start

Physics
I don't know how to get the frequency, I think if I can figure that out I could get the rest, but I am not sure where the two 75 W come in and the 5% like where am I suppose to put them in any equation?

Physics
A 75 W light source consumes 75 W of electric power. Typically only about 5% of this energy is emitted as visible light of wavelength 600 nm. (a) Calculate the frequency of the emitted visible light. (b) How many photons per second of visible light does the source emit? (c) Is...

Physics
A laser used to weld detached retinas emits light with a wavelength of 652 nm in pulses that are 20 ms in duration. THe average power expended during each pulse is .600 W. (a) How much energy is in each pulse, in joules and electron volts? (b) What is the energy of one photon ...

Physics
What is the thinnest film of a coating with n=1.42 on glass n=1.52 for which destructive interference of the red component (650 nm) of an incident white light beam in air can take place by reflection? I am confused on the n's and I have no idea what equation to use, it see...

Physics
Coherent light of frequency 6.32 * 10^14 Hz passes through two thin slits and falls on a screen 85 cm away. You observe that the third bright fringe occurs at +- (plus or minus) 3.11 cm on either side of the central bright fringe. (a) How far apart are the two slits? (b) At wh...

Physics
Two small stereo speakers A and B that are 1.4 m apart are sending out sound of wavelength 34 cm in all directions and all in phase. A person at point P starts out equidistant from both speakers and walks so that he is always 1.5 m from speaker B. For what values x will the so...

us history
What gropu was largely responsible for funding the builing of the railroad system in the U.S.?

Physics
A certain digital camera having a lens with focal length 7.5 cm focuses on an object 1.85 m tall that is 4.25 m from the lens. (a) How far must the lens be from the photocells? (b) How tall is the image on the photocells? Is it erect or inverted? (c) A SLR digital camera often...

Physics
You want to take a full length photo of your friend who is 2 m tall, using a 35 mm camera having a 50 mm lens. The image dimensions of 35 mm film is 24 mm by 36 mm, and you want to make this a vertical photo in which your friend's image completely fills the image area. (a)...

Physics
You want to take a full length photo of your friend who is 2 m tall, using a 35 mm camera having a 50 mm lens. The image dimensions of 35 mm film is 24 mm by 36 mm, and you want to make this a vertical photo in which your friend's image completely fills the image area. (a)...

Physics
A certain digital camera having a lens with focal length 7.5 cm focuses on an object 1.85 m tall that is 4.25 m from the lens. (a) How far must the lens be from the photocells? (b) How tall is the image on the photocells? Is it erect or inverted? (c) A SLR digital camera often...

science
Why is the mechanical advantage of an inclined plane less than 1

Physics
The crystalline lens of the human eye is a double convex lens made of material haveing an index of refraction of 1.44. Its focal length in air is about 8 mm which also varies. We shall assume that the radii of curvature of its two surfaces have the same magnitude. (a) Find the...

Physics
A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18 cm. (a)Another car is seen in this side mirror and is 13 m behind the mirror, if the car is 1.5 m tall, what is the height of its image? I can't figure this one out! help p...

Physics
my book says the answer is 39 degrees..

Physics
If the critical angle for light at an interface between certain substances is 54.2 degrees, what is the polarizing angle at this same interface? I am confused!

math riddle ALGEBRA WITH PIZZAZZ
How does a hawaiian baritone laugh? A -low- ha

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