Saturday
April 19, 2014

Posts by josh


Total # Posts: 1,398

History
For the removal of indians could I talk about the Trail of Tears and Blackhawk? Anything else? Slaves: Gradual emancipation, abolition, Louisiana Purchase Anything else? Any ideas for the Texans and Mexicans?

History
I need some help on this essay question for my history class. I'm confused. There are three instances of the theory of the Manifest Destiny in the US as we approach 1845. Name the three examples, discuss each of one and it's relationship to the growth of the United Sta...

Algebra1
is this what you are saying......... (t-5)/(3-t)..i need to list the numbers for which the rational expression is undefined.

Algebra1
don't have a good teacher. need to understand how if can solve to figure out if this is undefined t-3/3-5

biology
skin cells seem to fit together like pieces of a jigsaw puzzle how is this arrangement of cells helpful to an organism?

physics
A 44.3-cm diameter disk rotates with a constant angular acceleration of 2.3 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. (a) Find the an...

math
solve the quadratic equation xsquared - 2x - 3 = 0

Calc
Newton's Law of Gravitation says that the magnitude F of the force exerted by a body of mass m on a body of mass M is the following. F=(GmM)/r^2 Here G is the gravitational constant and r is the distance between the bodies. (a) Find dF/dr (b) Suppose it is known that Earth...

Calc
nevermind i got it

Calc
it got cut off...here's the rest: (i) 2 to 5 µm ? µm2 (ii) 2 to 3 µm ? µm2 (iii) 2 to 2.1 µm ? µm2 Thank you

Calc
The volume of a growing spherical cell is given below, where the radius is measured in micrometers (1 µm = 10^-6m). V = 4/3pi r^3 (a) Find the average rate of change of V with respect to r when r changes from 2. Evaluate your answers numerically. (i) 2 to 5 µm ? &m...

Calc
The volume of a growing spherical cell is given below, where the radius is measured in micrometers (1 µm = 10-6m). V = 4/3pi r^3 (a) Find the average rate of change of V with respect to r when r changes from 2. Evaluate your answers numerically. (i) 2 to 5 µm ? &mi...

physics
how are the colors in a spectrum from an atom different from those in a rainbow? I think it is that the spectrum colors are more distinct and not "fuzzy" like a rainbow but I'm not sure

science
bounce gruond based microwaves off of rain and snow.used to track the direction and speed of storms?

Statistics
The following data set represents the repair costs (in dollars) for a random sample of 30 dishwashers. 41.82 52.81 57.80 68.16 73.48 78.88 88.13 88.79 90.07 90.35 91.68 91.72 93.01 95.21 95.34 96.50 100.05 101.32 103.59 104.19 105.62 111.32 117.14 118.42 118.77 119.01 120.70 1...

Programming Language
Create a method called countSelected, which takes an array of integers and an integer as input parameters and returns the number of occurences of the integer in the array. Example: data:{2, 1, 1, 8, 1, 0} select:1 ==> 3 public int countSelected (int[] data, int select) {

Advanced functions
Solve x^3 -3x^2 +5x +4 = 0 using Tartaglia's method.

Advanced functions
Solve x^3 -3x^2 +5x +4 = 0 using Tartaglia's method.

chemistry
what is 200grams-1000cm3? please help me!

art
Compare and contrast the representation of weight and space in the painting of The Good Shepherd in the Catacomb of Saints Pietro and Marcellino and the mosaic of Justinian and Attendants in Ravenna's Church of San Vitale. Devote and space. In your third paragraph discuss ...

economics
During 2000, Orlando was growing rapidly with new jobs luring people into the area. Despite increases in population and income growth that expanded demand for housing, the price of houses barely increased. Why?

algebra
give a counter example to show that each statement is false, the domain of each variable is the set of real numbers..... number 1 said 1. if a2=b2, then a=b idk how yo do it??

chemistry
It can not be found with the following information. Good luck, hahahaha

math
pennies are kept in a jar the mass of the jar is 20 g the mass of each panny is 5g le t the varible p represent the total mass of pennis and the jar. let the variable n represent the number og pennys. 1a. write an equation that represent the relation ship between mass p and n ...

chemistry
1) What is the major product of dehydration of an alcohol? 2) Why does the simplest ketone have three carbon atoms and no fewer?

Chemistry
How many moles of atoms are in 50 atoms Ba? Answer in units of mol.

physics
It's just 909 N in the opposite direction for each person. If this force against the ground (usually called the force of Friction or Fs) was not there they would not be able to put the tension upon the rope.

Statistics
A simple random sample of 25 has been collected from a normally distributed population for which it is know that o=17.0. The sample mean has been calculated as 342.0, and the sample standard deviation is s=14.9. Construct and interpret the 95% and 99% confidence intervals for ...

Statistics
From past experience, an airline has found the luggage weight for individual air travelers on its trans-Atlantic route to have a mean of 80 pounds and a standard deviation of 20 pounds. The plane is consistently fully booked and holds 100 passengers. The pilot insists on loadi...

Pysical Science
Mass of C3H8 Reacted with (g) Mass of O2 Reacted (g) Mass of CO2 Produced (g) 44 160 132 250 909 750 400 1,455 1,200 465 1,691 1,395 6. Based on the data in the table, how do you know that carbon dioxide is not the only substance formed in this chemical change?

physics
What average force in N is required to stop an 1,188 kg car in 9 s if it is initially traveling at 89 km/h? f=ma f=1,188(9.8) f=11642.4N This looks wrong to me. Can someone explain this to me.

sanches
A wire carries a 15 microampere current. How many electrons pass a given point on the wire in 1.0 ?

health
Write a 700- to 1,050-paper responding to the following: You have recently been employed by a small local hospital as an administrative assistant in the emergency room. The hospital does not provide any behavioral health services. You are assigned the task of gathering informa...

Economics
Does a Contractionary Fiscal Policy help lower inflation? Or does Expansionary Fiscal Policy lower inflation?

Chemistry
How many grams are in a milliliter?

MATH
QUESTION: rounded to the nearest ten, i am 320, the sum of my digits is a multiple of 6 i am even.

5th grade
i re posted the question the way it is reading from my homework page. thanks for your help.

5th grade
i want to see if my answer is correct & that i am understanding this. question: round me to the nearest ten, i am 320 the sum of my digit is a multiple of 6 i am even. My Answer = 24 20 ten 24 2+4 =6

chemistry
Calculate the partial pressure of 24 g methane, 48 g of oxygen and 56 g of nitrogen contained in a 25L container. What is the total pressure.

physics
TY SIR. It extremely helped. I really appreciate your time..

literature - 11th grade
define "period structure

Engineering
A person rappels down a cliff. The person uses a 0.5 inch diameter rope, creating a 170-lb internal force. What is the normal stress in the rope. I got 340 by diving 170 from .5 is this right?

Physics
I got -2.84E14 plugged it in and got the wrong answer

Physics
A -3.5uC charge experiences a 13 ihat-N electric force in a certain electric field.What force would a proton experience in the same field? I got -7.28*10^-18 from (1.6*10^-19)(-45.5) I got -45.5 from multiplying 13 by -3.5 What am I doing wrong?

Physics
How do you do that

Physics
Take q1=23uC at (0,1), q2=16uC. at (2,0), and q3=? at (2,2). IF the force on q1 points in the -x direction, (a) what is q3 and (b) what is the magnitude of the force on q1? I know a is 16uC For part B I got .067 am I right I am using Coloumbs law k=9.0*10^9 q1=23*10^-6 q2=16*1...

Physics
what will q be for both questions

Physics
A proton is at the origin and an electron is at the point x = 0.41 nm, y = 0.36 nm. Find the electric force on the proton. I got 7.529 *10^-11 but it wants the answer for fx and fy how do i get that?

Physics
There are two positive charges (+4C on the left and +6C on the right) that are both separated by an arbitrary distance. In order not to experience any net electric force where would you place the third charge. I say to the left of the +4C charge am i right?

CHem
How many oxygen atoms do you have in 2.00 grams of calcium phosphate? My answer is 3.9*10^22 by multiplying avogadros number by (2/31) Am I close? How many Ca^2+ ions do you have in 2.00 grams of calcium phosphate? I am getting 39, am i close? since there are 3 Ca2+ ions per m...

Physics
There is a flash of lighting that gives out a 25 C of negative charge from cloud to ground. Determine the amount of electrons involved? Do i use the formula F=qE I know one coulomb is 1.6 * 10 ^-19

Chem
How many oxygen atoms do you have in 2.00 grams of calcium phosphate? Do you use avogadro's number and how? How many Ca^2+ ions do you have in 2.00 grams of calcium phosphate? Any help would be greatly appreciated.

Chem
What is the name of Co2(C2O4)3 is it cobalt (2) tris ethanedioate

Physics (Astronomy)
Hi, what keeps objects in orbit, for example, preventing the moon from crashing into the earth under the force of gravity? I have read that it speeds up as it gets closer to earth but I don't understand why. Can someone help me? Thanks.

Math
375 is what percent of 500?

communication
What was your experience with the Center for Writing Excellence (CWE) in the past? In addition to the CWE, what other writing tools are available for revising a research paper? How can you become your own editor and review your writing with a critical eye?

psych
For this assignment, you will create a Microsoft® PowerPoint® presentation. Your presentation must briefly summarize how psychological disorders are classified including the role of the DSM IV. Your presentation must have at least one slide for each of the major classe...

Chemistry
Hi!! Okay So I have this question here and you have to pick the false statement. Now I believe its a or e. But I really can't decide which it is. I might be totally wrong about this which is why I need some help... please! These are the options: a. the bond length is the t...

Chemistry
Hi! I have a question about Pi-Bonds: a. ) are the only kind of bonds present in double bonds b. ) have very little electron density along the internuclear axis c. ) are formed by endwise overlap of p-orbits d. ) are formed from hybrid orbitals e. ) are formed from s-orbitals ...

maths 4th grade
hello i need help with time table i really need help can you help because i really need help and i aslo need help with reading

algebra
we have a triangle with side a,b,&c. Side b=1,c=sqrt10 what is the length of side a?

Monroe
What do economist believe about future business cycles?

algebra II
Simplify. 2 square root 2(5 square root 10- 3 square root 2)

Math
I think there is supposed to be a few open spaces, maybe its we cant elope

Algebra
jon can type a report in 9 hours, nick can do the same job in 5 hours. How long would it take to type if they did it together?

8th Grade Science
Yeah,I've been wanting to ask that too.

college al
y=2x^3√9-x^2

algebra
find center and radius of circle with given equation: (x+4)^2 + (y-4)^2 = 25

8th grade
UH OH, Im getting this in grade 9 acedemic,

9th grade weighte average
how should i do weighted average

Chemistry-Urgent Help Please
What are the differences between -ate, -ide, -ite, and the other suffixes? What are some ways of remembering? Thank you for clarifying this.

Chemistry
What are the differences between -ate, -ide, -ite, and the other suffixes? What are some ways of remembering? Thank you for clarifying this.

Math
how did you get that. not rudely.

Math
dont get it

Math
The area of a rectangle is 90m 2. The base is three less than three times the height. What is the perimeter?

12th grade Data
In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k-1)(k-2)...(3)(2)(1)

CALC
no one to help me?????

CALC
what is the arc length of y=x^4/8 + 1/(4x^2) [-1,-2] i have tried this many times but i am not achieving the answer of 33/16 which is supposed to be correct....much help is appreciated

math
(a) Use the Midpoint Rule and the given data to estimate the value of the integral I. (Give the answer to two decimal places.) I = int_0^3.2 f(x)dx 1 x f(x) x f(x) 0.0 7.3 2.0 8.8 0.4 6.8 2.4 7.3 0.8 8.1 2.8 7.6 1.2 7.6 3.2 7.3 1.6 8.2 (b) If it is known that -5 ≤ f'...

6th grade_Science/Math
hey get a life

Math
Josh and Mike live 13 miles apart. Yesterday Josh started to ride his bicycle toward Mike's house. When they met, Josh had ridden for twice the length of time as Mike and at 4/5 of Mike's rate. How many miles had Mike ridden when they met? (a) 4 (b) 5 (c) 6 (d) 7 (e) 8

Statistics
That answer is wrong

Poetry (9th grade)
This is a poem by Alice Walker and a question at the end but I can't figure out the question. Poem title: "Good Night, Willie Lee, I'll see you in the morning." Looking down into my father's dead face for the last time my mother said without tears, withou...

calculus
lim x->(pi/3) (cos x -(1/2))/(x-(pi/3)) is?

calculus
o alright thank you drwls

calculus
is it 2ln 2?

calculus
Can someone help me with the problem? f(x)={ln 2x, 0<x<2 {2lnx, x >or= 2 The limit lim x-> 2 f(x) is?

Physics
thank you for that answer you are amazing!

speech
What are the 5 Communication acts?

language arts
analogie for broom is to sweep as brush is to?

Math
5x-14=8x+4

IT Programming in South Africa for a 2007 matric..
IT Programming in South Africa for a 2007 matriculant? I matriculated 2007 with a Senior Certificate : HG Afrikaans 2nd Lang 45% HG English 1st Lang 51% SG Maths 66% SG Science 49% HG Biology 44% SG Computers 62% And I have experience with ms-dos, vbscript, javascript, css, ht...

Algebra (y=kx)
just read my other question and u will find the question. but i really need he- lp!!!!!!!!!!!!!!!!!!!!!!!!!!!

math
ho do i make a y=k x problem with facts like: exports $465.3 billion and imports 402.4 billion?

Science
definatley c

chemistry II
I search the web and my texbook doesn't have the answer so please help What are the four steps of a process involving a heterogeneous catalyst?

8th Grade Algebra
just go 2 google and google it!

4th grade
2-1=1

9th grade
Need help with (x+5)(3xsquared-2x+1)

3rd grade
yes

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